Science.gov

Sample records for airspace concepts evaluation

  1. The Airspace Concepts Evaluation System Architecture and System Plant

    NASA Technical Reports Server (NTRS)

    Windhorst, Robert; Meyn, Larry; Manikonda, Vikram; Carlos, Patrick; Capozzi, Brian

    2006-01-01

    The Airspace Concepts Evaluation System is a simulation of the National Airspace System. It includes models of flights, airports, airspaces, air traffic controls, traffic flow managements, and airline operation centers operating throughout the United States. It is used to predict system delays in response to future capacity and demand scenarios and perform benefits assessments of current and future airspace technologies and operational concepts. Facilitation of these studies requires that the simulation architecture supports plug and play of different air traffic control, traffic flow management, and airline operation center models and multi-fidelity modeling of flights, airports, and airspaces. The simulation is divided into two parts that are named, borrowing from classical control theory terminology, control and plant. The control consists of air traffic control, traffic flow management, and airline operation center models, and the plant consists of flight, airport, and airspace models. The plant can run open loop, in the absence of the control. However, undesired affects, such as conflicts and over congestions in the airspaces and airports, can occur. Different controls are applied, "plug and played", to the plant. A particular control is evaluated by analyzing how well it managed conflicts and congestions. Furthermore, the terminal area plants consist of models of airports and terminal airspaces. Each model consists of a set of nodes and links which are connected by the user to form a network. Nodes model runways, fixes, taxi intersections, gates, and/or other points of interest, and links model taxiways, departure paths, and arrival paths. Metering, flow distribution, and sequencing functions can be applied at nodes. Different fidelity model of how a flight transits are can be used by links. The fidelity of the model can be adjusted by the user by either changing the complexity of the node/link network-or the way that the link models how the flights transit

  2. Environmental impact analysis with the airspace concept evaluation system

    NASA Technical Reports Server (NTRS)

    Augustine, Stephen; Capozzi, Brian; DiFelici, John; Graham, Michael; Thompson, Terry; Miraflor, Raymond M. C.

    2005-01-01

    The National Aeronautics and Space Administration (NASA) Ames Research Center has developed the Airspace Concept Evaluation System (ACES), which is a fast-time simulation tool for evaluating Air Traffic Management (ATM) systems. This paper describes linking a capability to ACES which can analyze the environmental impact of proposed future ATM systems. This provides the ability to quickly evaluate metrics associated with environmental impacts of aviation for inclusion in multi-dimensional cost-benefit analysis of concepts for evolution of the National Airspace System (NAS) over the next several decades. The methodology used here may be summarized as follows: 1) Standard Federal Aviation Administration (FAA) noise and emissions-inventory models, the Noise Impact Routing System (NIRS) and the Emissions and Dispersion Modeling System (EDMS), respectively, are linked to ACES simulation outputs; 2) appropriate modifications are made to ACES outputs to incorporate all information needed by the environmental models (e.g., specific airframe and engine data); 3) noise and emissions calculations are performed for all traffic and airports in the study area for each of several scenarios, as simulated by ACES; and 4) impacts of future scenarios are compared to the current NAS baseline scenario. This paper also provides the results of initial end-to-end, proof-of-concept runs of the integrated ACES and environmental-modeling capability. These preliminary results demonstrate that if no growth is likely to be impeded by significant environmental impacts that could negatively affect communities throughout the nation.

  3. Validating the Airspace Concept Evaluation System for Different Weather Days

    NASA Technical Reports Server (NTRS)

    Zelinski, Shannon; Meyn, Larry

    2006-01-01

    This paper extends the process for validating the Airspace Concept Evaluation System using real-world historical flight operational data. System inputs such as flight plans and airport en-route capacities, are generated and processed to create a realistic reproduction of a single day's operations within the National Airspace System. System outputs such as airport throughput, delays, and en-route sector loads are then compared to real world operational metrics and delay statistics for the reproduced day. The process is repeated for 4 historical days with high and low traffic volume and delay attributed to weather. These 4 days are simulated using default en-route capacities and variable en-route capacities used to emulate weather. The validation results show that default enroute capacity simulations are closer to real-world data for low weather days than high weather days. The use of reduced variable enroute capacities adds a large delay bias to ACES but delay trends between weather days are better represented.

  4. Validation Of The Airspace Concept Evaluation System Using Real World Data

    NASA Technical Reports Server (NTRS)

    Zelinski, Shannon

    2005-01-01

    This paper discusses the process of performing a validation of the Airspace Concept Evaluation System (ACES) using real world historical flight operational data. ACES inputs are generated from select real world data and processed to create a realistic reproduction of a single day of operations within the National Airspace System (NAS). ACES outputs are then compared to real world operational metrics and delay statistics for the reproduced day. Preliminary results indicate that ACES produces delays and airport operational metrics similar to the real world with minor variations of delay by phase of flight. ACES is a nation-wide fast-time simulation tool developed at NASA Ames Research Center. ACES models and simulates the NAS using interacting agents representing center control, terminal flow management, airports, individual flights, and other NAS elements. These agents pass messages between one another similar to real world communications. This distributed agent based system is designed to emulate the highly unpredictable nature of the NAS, making it a suitable tool to evaluate current and envisioned airspace concepts. To ensure that ACES produces the most realistic results, the system must be validated. There is no way to validate future concepts scenarios using real world historical data, but current day scenario validations increase confidence in the validity of future scenario results. Each operational day has unique weather and traffic demand schedules. The more a simulation utilizes the unique characteristic of a specific day, the more realistic the results should be. ACES is able to simulate the full scale demand traffic necessary to perform a validation using real world data. Through direct comparison with the real world, models may continuee to be improved and unusual trends and biases may be filtered out of the system or used to normalize the results of future concept simulations.

  5. Generic Airspace Concepts and Research

    NASA Technical Reports Server (NTRS)

    Mogford, Richard H.

    2010-01-01

    The purpose of this study was to evaluate methods for reducing the training and memorization required to manage air traffic in mid-term, Next Generation Air Transportation System (NextGen) airspace. We contrasted the performance of controllers using a sector information display and NextGen automation tools while working with familiar and unfamiliar sectors. The airspace included five sectors from Oakland and Salt Lake City Centers configured as a "generic center" called "West High Center." The Controller Information Tool was used to present essential information for managing these sectors. The Multi Aircraft Control System air traffic control simulator provided data link and conflict detection and resolution. There were five experienced air traffic controller participants. Each was familiar with one or two of the five sectors, but not the others. The participants rotated through all five sectors during the ten data collection runs. The results addressing workload, traffic management, and safety, as well as controller and observer comments, supported the generic sector concept. The unfamiliar sectors were comparable to the familiar sectors on all relevant measures.

  6. Airspace Concept Evaluation System (ACES), Concept Simulations using Communication, Navigation and Surveillance (CNS) System Models

    NASA Technical Reports Server (NTRS)

    Kubat, Greg; Vandrei, Don

    2006-01-01

    Project Objectives include: a) CNS Model Development; b Design/Integration of baseline set of CNS Models into ACES; c) Implement Enhanced Simulation Capabilities in ACES; d) Design and Integration of Enhanced (2nd set) CNS Models; and e) Continue with CNS Model Integration/Concept evaluations.

  7. The Processing of Airspace Concept Evaluations Using FASTE-CNS as a Pre- or Post-Simulation CNS Analysis Tool

    NASA Technical Reports Server (NTRS)

    Mainger, Steve

    2004-01-01

    As NASA speculates on and explores the future of aviation, the technological and physical aspects of our environment increasing become hurdles that must be overcome for success. Research into methods for overcoming some of these selected hurdles have been purposed by several NASA research partners as concepts. The task of establishing a common evaluation environment was placed on NASA's Virtual Airspace Simulation Technologies (VAST) project (sub-project of VAMS), and they responded with the development of the Airspace Concept Evaluation System (ACES). As one examines the ACES environment from a communication, navigation or surveillance (CNS) perspective, the simulation parameters are built with assumed perfection in the transactions associated with CNS. To truly evaluate these concepts in a realistic sense, the contributions/effects of CNS must be part of the ACES. NASA Glenn Research Center (GRC) has supported the Virtual Airspace Modeling and Simulation (VAMS) project through the continued development of CNS models and analysis capabilities which supports the ACES environment. NASA GRC initiated the development a communications traffic loading analysis tool, called the Future Aeronautical Sub-network Traffic Emulator for Communications, Navigation and Surveillance (FASTE-CNS), as part of this support. This tool allows for forecasting of communications load with the understanding that, there is no single, common source for loading models used to evaluate the existing and planned communications channels; and that, consensus and accuracy in the traffic load models is a very important input to the decisions being made on the acceptability of communication techniques used to fulfill the aeronautical requirements. Leveraging off the existing capabilities of the FASTE-CNS tool, GRC has called for FASTE-CNS to have the functionality to pre- and post-process the simulation runs of ACES to report on instances when traffic density, frequency congestion or aircraft spacing

  8. A System Concept for Facilitating User Preferences in En Route Airspace

    NASA Technical Reports Server (NTRS)

    Vivona, R. A.; Ballin, M. G.; Green, S. M.; Bach, R. E.; McNally, B. D.

    1996-01-01

    The Federal Aviation Administration is trying to make its air traffic management system more responsive to the needs of the aviation community by exploring the concept of 'free flight' for aircraft flying under instrument flight rules. A logical first step toward free flight could be made without significantly altering current air traffic control (ATC) procedures or requiring new airborne equipment by designing a ground-based system to be highly responsive to 'user preference' in en route airspace while providing for an orderly transition to the terminal area. To facilitate user preference in all en route environments, a system based on an extension of the Center/TRACON Automation System (CTAS) is proposed in this document. The new system would consist of two integrated components. An airspace tool (AT) focuses on unconstrained en route aircraft (e.g., not transitioning to the terminal airspace), taking advantage of the relatively unconstrained nature of their flights and using long-range trajectory prediction to provide cost-effective conflict resolution advisories to sector controllers. A sector tool (ST) generates efficient advisories for all aircraft, with a focus on supporting controllers in analyzing and resolving complex, highly constrained traffic situations. When combined, the integrated AT/ST system supports user preference in any air route traffic control center sector. The system should also be useful in evaluating advanced free-flight concepts by serving as a test bed for future research. This document provides an overview of the design concept, explains its anticipated benefits, and recommends a development strategy that leads to a deployable system.

  9. FACET: Future ATM Concepts Evaluation Tool

    NASA Technical Reports Server (NTRS)

    Bilmoria, Karl D.; Banavar, Sridhar; Chatterji, Gano B.; Sheth, Kapil S.; Grabbe, Shon

    2000-01-01

    FACET (Future ATM Concepts Evaluation Tool) is an Air Traffic Management research tool being developed at the NASA Ames Research Center. This paper describes the design, architecture and functionalities of FACET. The purpose of FACET is to provide E simulation environment for exploration, development and evaluation of advanced ATM concepts. Examples of these concepts include new ATM paradigms such as Distributed Air-Ground Traffic Management, airspace redesign and new Decision Support Tools (DSTs) for controllers working within the operational procedures of the existing air traffic control system. FACET is currently capable of modeling system-wide en route airspace operations over the contiguous United States. Airspace models (e.g., Center/sector boundaries, airways, locations of navigation aids and airports) are available from databases. A core capability of FACET is the modeling of aircraft trajectories. Using round-earth kinematic equations, aircraft can be flown along flight plan routes or great circle routes as they climb, cruise and descend according to their individual aircraft-type performance models. Performance parameters (e.g., climb/descent rates and speeds, cruise speeds) are obtained from data table lookups. Heading, airspeed and altitude-rate dynamics are also modeled. Additional functionalities will be added as necessary for specific applications. FACET software is written in Java and C programming languages. It is platform-independent, and can be run on a variety of computers. FACET has been designed with a modular software architecture to enable rapid integration of research prototype implementations of new ATM concepts. There are several advanced ATM concepts that are currently being implemented in FACET airborne separation assurance, dynamic density predictions, airspace redesign (re-sectorization), benefits of a controller DST for direct-routing, and the integration of commercial space transportation system operations into the U.S. National

  10. A Human-in-the Loop Exploration of the Dynamic Airspace Configuration Concept

    NASA Technical Reports Server (NTRS)

    Homola, Jeffrey; Lee, Paul U.; Prevot, Thomas; Lee, Hwasoo; Kessell, Angela; Brasil, Connie; Smith, Nancy

    2010-01-01

    An exploratory human-in-the-loop study was conducted to better understand the impact of Dynamic Airspace Configuration (DAC) on air traffic controllers. To do so, a range of three progressively more aggressive algorithmic approaches to sectorizations were chosen. Sectorizations from these algorithms were used to test and quantify the range of impact on the controller and traffic. Results show that traffic count was more equitably distributed between the four test sectors and duration of counts over MAP were progressively lower as the magnitude of boundary change increased. However, taskload and workload were also shown to increase with the increase in aggressiveness and acceptability of the boundary changes decreased. Overall, simulated operations of the DAC concept did not appear to compromise safety. Feedback from the participants highlighted the importance of limiting some aspects of boundary changes such as amount of volume gained or lost and the extent of change relative to the initial airspace design.

  11. A Study of Future Communications Concepts and Technologies for the National Airspace System-Part III

    NASA Technical Reports Server (NTRS)

    Ponchak, Denise S.; Apaza, Rafael D.; Wichgersm Joel M.; Haynes, Brian; Roy, Aloke

    2014-01-01

    The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is investigating current and anticipated wireless communications concepts and technologies that the National Airspace System (NAS) may need in the next 50 years. NASA has awarded three NASA Research Announcements (NAR) studies with the objective to determine the most promising candidate technologies for air-to-air and air-to-ground data exchange and analyze their suitability in a post-NextGen NAS environment. This paper will present progress made in the studies and describe the communications challenges and opportunities that have been identified as part of the study. NASA's NextGen Concepts and Technology Development (CTD) Project integrates solutions for a safe, efficient and high-capacity airspace system through joint research efforts and partnerships with other government agencies. The CTD Project is one of two within NASA's Airspace Systems Program and is managed by the NASA Ames Research Center. Research within the CTD Project is in support the 2011 NASA Strategic Plan Sub-Goal 4.1: Develop innovative solutions and advanced technologies, through a balanced research portfolio, to improve current and future air transportation. The focus of CTD is on developing capabilities in traffic flow management, dynamic airspace configuration, separation assurance, super density operations and airport surface operations. Important to its research is the development of human/automation information requirements and decisionmaking guidelines for human-human and human-machine airportal decision-making. Airborne separation, oceanic intrail climb/descent and interval management applications depend on location and intent information of surrounding aircraft. ADS-B has been proposed to provide the information exchange, but other candidates such as satellite-based receivers, broadband or airborne internet, and cellular communications are possible candidate's.

  12. A Study of Future Communications Concepts and Technologies for the National Airspace System - Part II

    NASA Technical Reports Server (NTRS)

    Ponchak, Denise S.; Apaza, Rafael D.; Haynes, Brian; Wichgers, Joel M.; Roy, Aloke

    2014-01-01

    The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is investigating current and anticipated wireless communications concepts and technologies that the National Airspace System (NAS) may need in the next 50 years. NASA has awarded three NASA Research Announcements (NAR) studies with the objective to determine the most promising candidate technologies for air-to-air and air-to-ground data exchange and analyze their suitability in a post-NextGen NAS environment. This paper will present progress made in the studies and describe the communications challenges and opportunities that have been identified during the studies' first year.

  13. A Study of Future Communications Concepts and Technologies for the National Airspace System-Part I

    NASA Technical Reports Server (NTRS)

    Ponchak, Denise S.; Apaza, Rafael D.; Wichgers, Joel M.; Haynes, Brian; Roy, Aloke

    2013-01-01

    The National Aviation and Space Administration (NASA) Glenn Research Center (GRC) is investigating current and anticipated wireless communications concepts and technologies that the National Airspace System (NAS) may need in the next 50 years. NASA has awarded three NASA Research Announcements (NAR) studies with the objective to determine the most promising candidate technologies for air-to-air and air-to-ground data exchange and analyze their suitability in a post-NextGen NAS environment. This paper will present progress made in the studies and describe the communications challenges and opportunities that have been identified during the studies' first phase.

  14. A Study of Future Communications Concepts and Technologies for the National Airspace System - Part IV

    NASA Technical Reports Server (NTRS)

    Ponchak, Denise S.; Apaza, Rafael D.; Wichgers, Joel M.; Haynes, Brian; Roy, Aloke

    2015-01-01

    The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is investigating current and anticipated wireless communications concepts and technologies that the National Airspace System (NAS) may need in the next 50 years. NASA has awarded three NASA Research Announcements (NAR) studies with the objective to determine the most promising candidate technologies for air-to-air and air-to-ground data exchange and analyze their suitability in a post-NextGen NAS environment. This paper will present the final results describing the communications challenges and opportunities that have been identified as part of the study.

  15. Experimental Evaluation of CTAS/FMS Integration in TRACON Airspace

    NASA Technical Reports Server (NTRS)

    Romahn, Stephen; Palmer, Everett; Null, Cynthia H. (Technical Monitor)

    1999-01-01

    A CTAS/FMS integration project at Ames Research Center addresses extensions to the CTAS air traffic management concept, among them the introduction of arrival routes specially designed for the use with a Flight Management System. These FMS arrival routes shall allow for the use of the INS' lateral and vertical navigation capabilities throughout the arrival until final approach. For the use in this project CTAS controller support tools that compliment the concept have been created. These tools offer controllers access to CTAS' prediction and planning capabilities in terms of speed and route advisories. The objective is to allow for a more strategic way of controlling aircraft. Expected benefits are an increase in arrival rate and a reduction of average travel times through TRACER airspace. A real time simulation is being conducted at Ames to investigate how FMS arrivals and approach transitions - with and without the support of CTAS tools - effect the flow of arriving traffic within TRACER airspace and the controllers' task performance. Four conditions will be investigated and compared to today's technique of controlling traffic with tactical vectoring: 1. FMS arrivals and approach transitions are available for controllers to issue to equipped aircraft - traffic permitting; 2. Speed advisories that match CTAS' runway balancing and sequencing plan are displayed to Feeder controllers; 3. Approach transition advisories (e.g., location of the base turn point) are displayed to Final controllers for tactical clearances ("Turn base now"); and 4. Approach transition advisories (voice and data link) are generated by CTAS and displayed to final controllers for strategic voice clearances ("Turn base five miles after waypoint xyz") or prepared in terms of a trajectory description for strategic data link clearance. Scenarios used in the study will represent current traffic and vary in density of arriving traffic and the kind and mix of equipage of arriving aircraft. Data will be

  16. Methodology for Collision Risk Assessment of an Airspace Flow Corridor Concept

    NASA Astrophysics Data System (ADS)

    Zhang, Yimin

    This dissertation presents a methodology to estimate the collision risk associated with a future air-transportation concept called the flow corridor. The flow corridor is a Next Generation Air Transportation System (NextGen) concept to reduce congestion and increase throughput in en-route airspace. The flow corridor has the potential to increase throughput by reducing the controller workload required to manage aircraft outside the corridor and by reducing separation of aircraft within corridor. The analysis in this dissertation is a starting point for the safety analysis required by the Federal Aviation Administration (FAA) to eventually approve and implement the corridor concept. This dissertation develops a hybrid risk analysis methodology that combines Monte Carlo simulation with dynamic event tree analysis. The analysis captures the unique characteristics of the flow corridor concept, including self-separation within the corridor, lane change maneuvers, speed adjustments, and the automated separation assurance system. Monte Carlo simulation is used to model the movement of aircraft in the flow corridor and to identify precursor events that might lead to a collision. Since these precursor events are not rare, standard Monte Carlo simulation can be used to estimate these occurrence rates. Dynamic event trees are then used to model the subsequent series of events that may lead to collision. When two aircraft are on course for a near-mid-air collision (NMAC), the on-board automated separation assurance system provides a series of safety layers to prevent the impending NNAC or collision. Dynamic event trees are used to evaluate the potential failures of these layers in order to estimate the rare-event collision probabilities. The results show that the throughput can be increased by reducing separation to 2 nautical miles while maintaining the current level of safety. A sensitivity analysis shows that the most critical parameters in the model related to the overall

  17. Wake Vortex Advisory System (WakeVAS) Evaluation of Impacts on the National Airspace System

    NASA Technical Reports Server (NTRS)

    Smith, Jeremy C.; Dollyhigh, Samuel M.

    2005-01-01

    This report is one of a series that describes an ongoing effort in high-fidelity modeling/simulation, evaluation and analysis of the benefits and performance metrics of the Wake Vortex Advisory System (WakeVAS) Concept of Operations being developed as part of the Virtual Airspace Modeling and Simulation (VAMS) project. A previous study, determined the overall increases in runway arrival rates that could be achieved at 12 selected airports due to WakeVAS reduced aircraft spacing under Instrument Meteorological Conditions. This study builds on the previous work to evaluate the NAS wide impacts of equipping various numbers of airports with WakeVAS. A queuing network model of the National Airspace System, built by the Logistics Management Institute, Mclean, VA, for NASA (LMINET) was used to estimate the reduction in delay that could be achieved by using WakeVAS under non-visual meteorological conditions for the projected air traffic demand in 2010. The results from LMINET were used to estimate the total annual delay reduction that could be achieved and from this, an estimate of the air carrier variable operating cost saving was made.

  18. Managing Demand and Capacity Using Multi-Sector Planning and Flexible Airspace: Human-in-the-Loop Evaluation of NextGen

    NASA Technical Reports Server (NTRS)

    Lee, Paul U.; Smith, Nancy M.; Prevot, Thomas; Homola, Jeffrey R.

    2010-01-01

    When demand for an airspace sector exceeds capacity, the balance can be re-established by reducing the demand, increasing the capacity, or both. The Multi-Sector Planner (MSP) concept has been proposed to better manage traffic demand by modifying trajectories across multiple sectors. A complementary approach to MSP, called Flexible Airspace Management (FAM), reconfigures the airspace such that capacity can be reallocated dynamically to balance the traffic demand across multiple sectors, resulting in fewer traffic management initiatives. The two concepts have been evaluated with a series of human-in-the-loop simulations at the Airspace Operations Laboratory to examine and refine the roles of the human operators in these concepts, as well as their tools and procedural requirements. So far MSP and FAM functions have been evaluated individually but the integration of the two functions is desirable since there are significant overlaps in their goals, geographic/temporal scope of the problem space, and the implementation timeframe. Ongoing research is planned to refine the humans roles in the integrated concept.

  19. Airspace Systems Program: Next Generation Air Transportation System, NextGen Systems Analysis, Integration and Evaluation Project. Version 1.0; Project Plan

    NASA Technical Reports Server (NTRS)

    Quon, Leighton

    2010-01-01

    The key objectives of the NASA ASP are to: Improve mobility, capacity efficiency and access of the airspace system. Improve collaboration, predictability, and flexibility for the airspace users. Enable accurate modeling and simulation of air transportation systems. Accommodate operations of all classes of aircraft. Maintain system safety and environmental protection. In support of these program objectives, the major goal of the NextGen-SAIE Project is to enable the transition of key capacity and efficiency improvements to the NAS. Since many aspects of the NAS are unique to specific airport or airspace environments, demand on various parts of the NAS is not expected to increase equally as system demand grows. SAIE will provide systems level analysis of the NAS characteristics, constraints, and demands such that a suite of capacity-increasing concepts and technologies for system solutions are enabled and facilitated. The technical objectives in support of this goal are the following: Integration, evaluation, and transition of more mature concepts and technologies in an environment that faithfully emulates real-world complexities. Interoperability research and analysis of ASP technologies across ATM functions is performed to facilitate integration and take ASP concepts and technologies to higher Technology Readiness Level (TRL). Analyses are conducted on the program s concepts to identify the system benefits or impacts. System level analysis is conducted to increase understanding of the characteristics and constraints of airspace system and its domains.

  20. Identifying Functional Requirements for Flexible Airspace Management Concept Using Human-In-The-Loop Simulations

    NASA Technical Reports Server (NTRS)

    Lee, Paul U.; Bender, Kim; Pagan, Danielle

    2011-01-01

    Flexible Airspace Management (FAM) is a mid- term Next Generation Air Transportation System (NextGen) concept that allows dynamic changes to airspace configurations to meet the changes in the traffic demand. A series of human-in-the-loop (HITL) studies have identified procedures and decision support requirements needed to implement FAM. This paper outlines a suggested FAM procedure and associated decision support functionality based on these HITL studies. A description of both the tools used to support the HITLs and the planned NextGen technologies available in the mid-term are presented and compared. The mid-term implementation of several NextGen capabilities, specifically, upgrades to the Traffic Management Unit (TMU), the initial release of an en route automation system, the deployment of a digital data communication system, a more flexible voice communications network, and the introduction of a tool envisioned to manage and coordinate networked ground systems can support the implementation of the FAM concept. Because of the variability in the overall deployment schedule of the mid-term NextGen capabilities, the dependency of the individual NextGen capabilities are examined to determine their impact on a mid-term implementation of FAM. A cursory review of the different technologies suggests that new functionality slated for the new en route automation system is a critical enabling technology for FAM, as well as the functionality to manage and coordinate networked ground systems. Upgrades to the TMU are less critical but important nonetheless for FAM to be fully realized. Flexible voice communications network and digital data communication system could allow more flexible FAM operations but they are not as essential.

  1. An Evaluation of Operational Airspace Sectorization Integrated System (OASIS) Advisory Tool

    NASA Technical Reports Server (NTRS)

    Lee, Paul U.; Mogford, Richard H.; Bridges, Wayne; Buckley, Nathan; Evans, Mark; Gujral, Vimmy; Lee, Hwasoo; Peknik, Daniel; Preston, William

    2013-01-01

    In January 2013, a human-in-the-loop evaluation of the Operational Airspace Sectorization Integrated System (OASIS) was conducted in the Airspace Operations Laboratory of the Human Systems Integration Division (Code TH) in conjunction with the Aviation Systems Division (Code AF). The development of OASIS is a major activity of the Dynamic Airspace Configuration (DAC) research focus area within the Aeronautics Research Mission Directorate (ARMD) Airspace Systems Program. OASIS is an advisory tool to assist Federal Aviation Administration (FAA) En Route Area Supervisors in their planning of sector combinedecombine operations as well as opening closing of Data-side (D-side) control positions. These advisory solutions are tailored to the predicted traffic demand over the next few hours. During the experiment, eight retired FAA personnel served as participants for a part-task evaluation of OASIS functionality, covering the user interface as well as the underlying algorithm. Participants gave positive feedback on both the user interface and the algorithm solutions for airspace configuration, including an excellent average rating of 94 on the tool usability scales. They also suggested various enhancements to the OASIS tool, which will be incorporated into the next tool development cycle for the full-scale human-in-the-loop evaluation to be conducted later this year.

  2. Airspace Systems Program: Next Generation Air Transportation System Concepts and Technology Development FY2010 Project Plan Version 3.0

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal H.

    2010-01-01

    This document describes the FY2010 plan for the management and execution of the Next Generation Air Transportation System (NextGen) Concepts and Technology Development (CTD) Project. The document was developed in response to guidance from the Airspace Systems Program (ASP), as approved by the Associate Administrator of the Aeronautics Research Mission Directorate (ARMD), and from guidelines in the Airspace Systems Program Plan. Congress established the multi-agency Joint Planning and Development Office (JPDO) in 2003 to develop a vision for the 2025 Next Generation Air Transportation System (NextGen) and to define the research required to enable it. NASA is one of seven agency partners contributing to the effort. Accordingly, NASA's ARMD realigned the Airspace Systems Program in 2007 to "directly address the fundamental research needs of the Next Generation Air Transportation System...in partnership with the member agencies of the JPDO." The Program subsequently established two new projects to meet this objective: the NextGen-Airspace Project and the NextGen-Airportal Project. Together, the projects will also focus NASA s technical expertise and world-class facilities to address the question of where, when, how and the extent to which automation can be applied to moving aircraft safely and efficiently through the NAS and technologies that address optimal allocation of ground and air technologies necessary for NextGen. Additionally, the roles and responsibilities of humans and automation influence in the NAS will be addressed by both projects. Foundational concept and technology research and development begun under the NextGen-Airspace and NextGen-Airportal projects will continue. There will be no change in NASA Research Announcement (NRA) strategy, nor will there be any change to NASA interfaces with the JPDO, Federal Aviation Administration (FAA), Research Transition Teams (RTTs), or other stakeholders

  3. Flexible Airspace Management (FAM) Research 2010 Human-in-the-Loop Simulation

    NASA Technical Reports Server (NTRS)

    Lee, Paul U.; Brasil, Connie; Homola, Jeffrey; Kessell, Angela; Prevot, Thomas; Smith, Nancy

    2011-01-01

    A human-in-the-Ioop (HITL) simulation was conducted to assess potential user and system benefits of Flexible Airspace Management (FAM) concept, as well as designing role definitions, procedures, and tools to support the FAM operations in the mid-term High Altitude Airspace (HAA) environment. The study evaluated the benefits and feasibility of flexible airspace reconfiguration in response to traffic overload caused by weather deviations, and compared them to those in a baseline condition without the airspace reconfiguration. The test airspace consisted of either four sectors in one Area of Specialization or seven sectors across two Areas. The test airspace was assumed to be at or above FL340 and fully equipped Vvith data communications (Data Comm). Other assumptions were consistent with those of the HAA concept. Overall, results showed that FAM operations with multiple Traffic Management Coordinators, Area Supervisors, and controllers worked remarkably well. The results showed both user and system benefits, some of which include the increased throughput, decreased flight distance, more manageable sector loads, and better utilized airspace. Also, the roles, procedures, airspace designs, and tools were all very well received. Airspace configuration options that resulted from a combination of algorithm-generated airspace configurations with manual modifications were well acceptec and posed little difficuIty and/or workload during airspace reconfiguration process. The results suggest a positive impact of FAM operations in HAA. Further investigation would be needed to evaluate if the benefits and feasibility would extend in either non-HAA or mixed equipage environment.

  4. Autonomous Flight Rules - A Concept for Self-Separation in U.S. Domestic Airspace

    NASA Technical Reports Server (NTRS)

    Wing, David J.; Cotton, William B.

    2011-01-01

    Autonomous Flight Rules (AFR) are proposed as a new set of operating regulations in which aircraft navigate on tracks of their choice while self-separating from traffic and weather. AFR would exist alongside Instrument and Visual Flight Rules (IFR and VFR) as one of three available flight options for any appropriately trained and qualified operator with the necessary certified equipment. Historically, ground-based separation services evolved by necessity as aircraft began operating in the clouds and were unable to see each other. Today, technologies for global navigation, airborne surveillance, and onboard computing enable the functions of traffic conflict management to be fully integrated with navigation procedures onboard the aircraft. By self-separating, aircraft can operate with more flexibility and fewer restrictions than are required when using ground-based separation. The AFR concept is described in detail and provides practical means by which self-separating aircraft could share the same airspace as IFR and VFR aircraft without disrupting the ongoing processes of Air Traffic Control.

  5. Share the Sky: Concepts and Technologies That Will Shape Future Airspace Use

    NASA Technical Reports Server (NTRS)

    Ballin, Mark G.; Cotton, William; Kopardekar, Parimal

    2011-01-01

    The airspace challenge for the United States is to protect national sovereignty and ensure the safety and security of those on the ground and in the air, while at the same time ensuring the efficiency of flight, reducing the costs involved, protecting the environment, and protecting the freedom of access to the airspace. Many visions of the future NAS hold a relatively near-term perspective, focusing on existing uses of the airspace and assuming that new uses will make up a small fraction of total use. In the longer term, the skies will be filled with diverse and amazing new air vehicles filling our societal needs. Anticipated new vehicles include autonomous air vehicles acting both independently and in coordinated groups, unpiloted cargo carriers, and large numbers of personal air vehicles and small-scale point-to-point transports. These vehicles will enable new capabilities that have the potential to increase societal mobility, transport freight at lower cost and with lower environmental impact, improve the study of the Earth s atmosphere and ecosystem, and increase societal safety and security by improving or drastically lowering the cost of critical services such as firefighting, emergency medical evacuation, search and rescue, border and neighborhood surveillance, and the inspection of our infrastructure. To ensure that uses of the airspace can continue to grow for the benefit of all, a new paradigm for operations is needed: equitably and safely sharing the airspace. This paper is an examination of such a vision, concentrating on the operations of all types of air vehicles and future uses of the National Airspace. Attributes of a long-term future airspace system are provided, emerging operations technologies are described, and initial steps in research and development are recommended.

  6. Common Methodology for Efficient Airspace Operations

    NASA Technical Reports Server (NTRS)

    Sridhar, Banavar

    2012-01-01

    Topics include: a) Developing a common methodology to model and avoid disturbances affecting airspace. b) Integrated contrails and emission models to a national level airspace simulation. c) Developed capability to visualize, evaluate technology and alternate operational concepts and provide inputs for policy-analysis tools to reduce the impact of aviation on the environment. d) Collaborating with Volpe Research Center, NOAA and DLR to leverage expertise and tools in aircraft emissions and weather/climate modeling. Airspace operations is a trade-off balancing safety, capacity, efficiency and environmental considerations. Ideal flight: Unimpeded wind optimal route with optimal climb and descent. Operations degraded due to reduction in airport and airspace capacity caused by inefficient procedures and disturbances.

  7. A Preliminary Evaluation of Supersonic Transport Category Vehicle Operations in the National Airspace System

    NASA Technical Reports Server (NTRS)

    Underwood, Matthew C.; Guminsky, Michael D.

    2015-01-01

    Several public sector businesses and government agencies, including the National Aeronautics and Space Administration are currently working on solving key technological barriers that must be overcome in order to realize the vision of low-boom supersonic flights conducted over land. However, once these challenges are met, the manner in which this class of aircraft is integrated in the National Airspace System may become a potential constraint due to the significant environmental, efficiency, and economic repercussions that their integration may cause. Background research was performed on historic supersonic operations in the National Airspace System, including both flight deck procedures and air traffic controller procedures. Using this information, an experiment was created to test some of these historic procedures in a current-day, emerging Next Generation Air Transportation System (NextGen) environment and observe the interactions between commercial supersonic transport aircraft and modern-day air traffic. Data was gathered through batch simulations of supersonic commercial transport category aircraft operating in present-day traffic scenarios as a base-lining study to identify the magnitude of the integration problems and begin the exploration of new air traffic management technologies and architectures which will be needed to seamlessly integrate subsonic and supersonic transport aircraft operations. The data gathered include information about encounters between subsonic and supersonic aircraft that may occur when supersonic commercial transport aircraft are integrated into the National Airspace System, as well as flight time data. This initial investigation is being used to inform the creation and refinement of a preliminary Concept of Operations and for the subsequent development of technologies that will enable overland supersonic flight.

  8. Toward a Concept of Operations for Aviation Weather Information Implementation in the Evolving National Airspace System

    NASA Technical Reports Server (NTRS)

    McAdaragh, Raymon M.

    2002-01-01

    The capacity of the National Airspace System is being stressed due to the limits of current technologies. Because of this, the FAA and NASA are working to develop new technologies to increase the system's capacity which enhancing safety. Adverse weather has been determined to be a major factor in aircraft accidents and fatalities and the FAA and NASA have developed programs to improve aviation weather information technologies and communications for system users The Aviation Weather Information Element of the Weather Accident Prevention Project of NASA's Aviation Safety Program is currently working to develop these technologies in coordination with the FAA and industry. This paper sets forth a theoretical approach to implement these new technologies while addressing the National Airspace System (NAS) as an evolving system with Weather Information as one of its subSystems. With this approach in place, system users will be able to acquire the type of weather information that is needed based upon the type of decision-making situation and condition that is encountered. The theoretical approach addressed in this paper takes the form of a model for weather information implementation. This model addresses the use of weather information in three decision-making situations, based upon the system user's operational perspective. The model also addresses two decision-making conditions, which are based upon the need for collaboration due to the level of support offered by the weather information provided by each new product or technology. The model is proposed for use in weather information implementation in order to provide a systems approach to the NAS. Enhancements to the NAS collaborative decision-making capabilities are also suggested.

  9. Analysis of Traffic Conflicts in a Mixed-Airspace Evaluation of Airborne Separation Assurance

    NASA Technical Reports Server (NTRS)

    Lewis, Timothy A.

    2013-01-01

    A pair of human-in-the-loop simulation evaluations of a distributed air/ground separation assurance system have been conducted to investigate the function allocation between humans and automation systems as well as ground-based and airborne agents in the Next Generation Air Transportation System and beyond. This paper focuses on an analysis of certain critical conflicts observed between self-separating aircraft and ground-managed traffic in the same airspace. The principal cause of each conflict is identified and potential mitigations are discussed, such as: the sharing of trajectory intent information between the ground and the air; more cautious trajectory planning by the self-separating aircraft; and more equitable rules-of-the-road between the self-separating aircraft and ground-managed aircraft. This analysis will inform the ongoing design of an airborne separation assurance automation tool.

  10. Fast-time Simulation of an Automated Conflict Detection and Resolution Concept

    NASA Technical Reports Server (NTRS)

    Windhorst, Robert; Erzberger, Heinz

    2006-01-01

    This paper investigates the effect on the National Airspace System of reducing air traffc controller workload by automating conflict detection and resolution. The Airspace Concept Evaluation System is used to perform simulations of the Cleveland Center with conventional and with automated conflict detection and resolution concepts. Results show that the automated conflict detection and resolution concept significantly decreases growth of delay as traffic demand is increased in en-route airspace.

  11. Metrics for the NASA Airspace Systems Program

    NASA Technical Reports Server (NTRS)

    Smith, Jeremy C.; Neitzke, Kurt W.

    2009-01-01

    This document defines an initial set of metrics for use by the NASA Airspace Systems Program (ASP). ASP consists of the NextGen-Airspace Project and the NextGen-Airportal Project. The work in each project is organized along multiple, discipline-level Research Focus Areas (RFAs). Each RFA is developing future concept elements in support of the Next Generation Air Transportation System (NextGen), as defined by the Joint Planning and Development Office (JPDO). In addition, a single, system-level RFA is responsible for integrating concept elements across RFAs in both projects and for assessing system-wide benefits. The primary purpose of this document is to define a common set of metrics for measuring National Airspace System (NAS) performance before and after the introduction of ASP-developed concepts for NextGen as the system handles increasing traffic. The metrics are directly traceable to NextGen goals and objectives as defined by the JPDO and hence will be used to measure the progress of ASP research toward reaching those goals. The scope of this document is focused on defining a common set of metrics for measuring NAS capacity, efficiency, robustness, and safety at the system-level and at the RFA-level. Use of common metrics will focus ASP research toward achieving system-level performance goals and objectives and enable the discipline-level RFAs to evaluate the impact of their concepts at the system level.

  12. Solar Thermal Concept Evaluation

    NASA Technical Reports Server (NTRS)

    Hawk, Clark W.; Bonometti, Joseph A.

    1995-01-01

    Concentrated solar thermal energy can be utilized in a variety of high temperature applications for both terrestrial and space environments. In each application, knowledge of the collector and absorber's heat exchange interaction is required. To understand this coupled mechanism, various concentrator types and geometries, as well as, their relationship to the physical absorber mechanics were investigated. To conduct experimental tests various parts of a 5,000 watt, thermal concentrator, facility were made and evaluated. This was in anticipation at a larger NASA facility proposed for construction. Although much of the work centered on solar thermal propulsion for an upper stage (less than one pound thrust range), the information generated and the facility's capabilities are applicable to material processing, power generation and similar uses. The numerical calculations used to design the laboratory mirror and the procedure for evaluating other solar collectors are presented here. The mirror design is based on a hexagonal faceted system, which uses a spherical approximation to the parabolic surface. The work began with a few two dimensional estimates and continued with a full, three dimensional, numerical algorithm written in FORTRAN code. This was compared to a full geometry, ray trace program, BEAM 4, which optimizes the curvatures, based on purely optical considerations. Founded on numerical results, the characteristics of a faceted concentrator were construed. The numerical methodologies themselves were evaluated and categorized. As a result, the three-dimensional FORTRAN code was the method chosen to construct the mirrors, due to its overall accuracy and superior results to the ray trace program. This information is being used to fabricate and subsequently, laser map the actual mirror surfaces. Evaluation of concentrator mirrors, thermal applications and scaling the results of the 10 foot diameter mirror to a much larger concentrator, were studied. Evaluations

  13. Concept of nondestructive evaluation

    NASA Technical Reports Server (NTRS)

    Chern, E. J.

    1991-01-01

    The history of nondestructive evaluation, a recently evolved basic testing philosophy, and some application of NDE are examined with emphasis on aerospace applications. The discussion covers the definition of NDE, chronological development, NDE methods and systems, the use of NDE for process control, NDE for ceramics and composites, NDE for fracture control in glass, and science aspects of NDE. Specific examples of NDE applications are given.

  14. Altitude Compensating Nozzle Concepts Evaluation

    NASA Technical Reports Server (NTRS)

    Soni, Bharat

    2000-01-01

    This report contains the summary of work accomplished during summer of 2000 by Mr. Chad Hammons, undergraduate senior student, Mississippi State University/ERC in support of NASA/MSFC mission pertinent to Altitude compensating nozzle concepts evaluations. In particular, the development of automatic grid generator applicable in conducting sensitivity analysis involving Aerospike engine is described.

  15. Evaluation of advanced airship concepts

    NASA Technical Reports Server (NTRS)

    Joner, B. A.; Schneider, J. J.

    1975-01-01

    A historical overview of the airship, technical and operational characteristics of conventional and hybrid concepts, and the results of a parametric design analysis and evaluation are presented. The lift capabilities of certain buoyant fluids for a hypothetical 16 million cu.ft. volume airship are compared. The potential advanced airship concepts are surveyed, followed by a discussion of the six configurations: conventional nonrigid, conventional rigid, Deltoid (Dynairship), Guppoid (Megalifter), Helipsoid, and Heli-Stat. It is suggested that a partially buoyant Helipsoid concept of the optimum buoyancy ratio has the potential to solve the problems facing future airship development, such as Ballast and Ballast Recovery System, Full Low-Speed Controllability, Susceptibility to Wind/Gusting, Weather/Icing Constraints, Ground Handling/Hangaring, and Direct/Indirect Operating Costs.

  16. Serious Gaming for Test & Evaluation of Clean-Slate (Ab Initio) National Airspace System (NAS) Designs

    NASA Technical Reports Server (NTRS)

    Allen, B. Danette; Alexandrov, Natalia

    2016-01-01

    Incremental approaches to air transportation system development inherit current architectural constraints, which, in turn, place hard bounds on system capacity, efficiency of performance, and complexity. To enable airspace operations of the future, a clean-slate (ab initio) airspace design(s) must be considered. This ab initio National Airspace System (NAS) must be capable of accommodating increased traffic density, a broader diversity of aircraft, and on-demand mobility. System and subsystem designs should scale to accommodate the inevitable demand for airspace services that include large numbers of autonomous Unmanned Aerial Vehicles and a paradigm shift in general aviation (e.g., personal air vehicles) in addition to more traditional aerial vehicles such as commercial jetliners and weather balloons. The complex and adaptive nature of ab initio designs for the future NAS requires new approaches to validation, adding a significant physical experimentation component to analytical and simulation tools. In addition to software modeling and simulation, the ability to exercise system solutions in a flight environment will be an essential aspect of validation. The NASA Langley Research Center (LaRC) Autonomy Incubator seeks to develop a flight simulation infrastructure for ab initio modeling and simulation that assumes no specific NAS architecture and models vehicle-to-vehicle behavior to examine interactions and emergent behaviors among hundreds of intelligent aerial agents exhibiting collaborative, cooperative, coordinative, selfish, and malicious behaviors. The air transportation system of the future will be a complex adaptive system (CAS) characterized by complex and sometimes unpredictable (or unpredicted) behaviors that result from temporal and spatial interactions among large numbers of participants. A CAS not only evolves with a changing environment and adapts to it, it is closely coupled to all systems that constitute the environment. Thus, the ecosystem that

  17. Airspace Control

    DTIC Science & Technology

    2011-02-02

    it does not display a currently valid OMB control number. 1 . REPORT DATE 02 FEB 2011 2. REPORT TYPE 3. DATES COVERED 00-00-2011 to 00-00-2011 4...each other; select the best course of action; and produce a joint operation plan or order (JP 1 - 02 ). A major element of the JOPP is campaign planning... 1 - 02 ). Airspace control should be integrated throughout the JOPP and campaign planning to ensure joint air operations support the JFC‘s plan.60

  18. Dynamic Airspace Configuration

    NASA Technical Reports Server (NTRS)

    Bloem, Michael J.

    2014-01-01

    In air traffic management systems, airspace is partitioned into regions in part to distribute the tasks associated with managing air traffic among different systems and people. These regions, as well as the systems and people allocated to each, are changed dynamically so that air traffic can be safely and efficiently managed. It is expected that new air traffic control systems will enable greater flexibility in how airspace is partitioned and how resources are allocated to airspace regions. In this talk, I will begin by providing an overview of some previous work and open questions in Dynamic Airspace Configuration research, which is concerned with how to partition airspace and assign resources to regions of airspace. For example, I will introduce airspace partitioning algorithms based on clustering, integer programming optimization, and computational geometry. I will conclude by discussing the development of a tablet-based tool that is intended to help air traffic controller supervisors configure airspace and controllers in current operations.

  19. Airspace Technology Demonstration 3 (ATD-3): Dynamic Weather Routes (DWR) Technology Transfer Document Summary Version 1.0

    NASA Technical Reports Server (NTRS)

    Sheth, Kapil; Wang, Easter Mayan Chan

    2016-01-01

    Airspace Technology Demonstration #3 (ATD-3) is part of NASA's Airspace Operations and Safety Program (AOSP) - specifically, its Airspace Technology Demonstrations (ATD) Project. ATD-3 is a multiyear research and development effort which proposes to develop and demonstrate automation technologies and operating concepts that enable air navigation service providers and airspace users to continuously assess weather, winds, traffic, and other information to identify, evaluate, and implement workable opportunities for flight plan route corrections that can result in significant flight time and fuel savings in en route airspace. In order to ensure that the products of this tech-transfer are relevant and useful, NASA has created strong partnerships with the FAA and key industry stakeholders. This summary document and accompanying technology artifacts satisfy the first of three Research Transition Products (RTPs) defined in the Applied Traffic Flow Management (ATFM) Research Transition Team (RTT) Plan. This transfer consists of NASA's legacy Dynamic Weather Routes (DWR) work for efficient routing for en-route weather avoidance. DWR is a ground-based trajectory automation system that continuously and automatically analyzes active airborne aircraft in en route airspace to identify opportunities for simple corrections to flight plan routes that can save significant flying time, at least five minutes wind-corrected, while avoiding weather and considering traffic conflicts, airspace sector congestion, special use airspace, and FAA routing restrictions. The key benefit of the DWR concept is to let automation continuously and automatically analyze active flights to find those where simple route corrections can save significant time and fuel. Operators are busy during weather events. It is more effective to let automation find the opportunities for high-value route corrections.

  20. Development of Virtual Airspace Simulation Technology - Real-Time (VAST-RT) Capability 2 and Experimental Plans

    NASA Technical Reports Server (NTRS)

    Lehmer, R.; Ingram, C.; Jovic, S.; Alderete, J.; Brown, D.; Carpenter, D.; LaForce, S.; Panda, R.; Walker, J.; Chaplin, P.; Ballinger, D.

    2006-01-01

    The Virtual Airspace Simulation Technology - Real-Time (VAST-RT) Project, an element cf NASA's Virtual Airspace Modeling and Simulation (VAMS) Project, has been developing a distributed simulation capability that supports an extensible and expandable real-time, human-in-the-loop airspace simulation environment. The VAST-RT system architecture is based on DoD High Level Architecture (HLA) and the VAST-RT HLA Toolbox, a common interface implementation that incorporates a number of novel design features. The scope of the initial VAST-RT integration activity (Capability 1) included the high-fidelity human-in-the-loop simulation facilities located at NASA/Ames Research Center and medium fidelity pseudo-piloted target generators, such as the Airspace Traffic Generator (ATG) being developed as part of VAST-RT, as well as other real-time tools. This capability has been demonstrated in a gate-to-gate simulation. VAST-RT's (Capability 2A) has been recently completed, and this paper will discuss the improved integration of the real-time assets into VAST-RT, including the development of tools to integrate data collected across the simulation environment into a single data set for the researcher. Current plans for the completion of the VAST-RT distributed simulation environment (Capability 2B) and its use to evaluate future airspace capacity enhancing concepts being developed by VAMS will be discussed. Additionally, the simulation environment's application to other airspace and airport research projects is addressed.

  1. Collision Avoidance for Airport Traffic Concept Evaluation

    NASA Technical Reports Server (NTRS)

    Jones, Denise R.; Prinzel, Lawrence J., III; Otero, Sharon D.; Barker, Glover D.

    2009-01-01

    An initial Collision Avoidance for Airport Traffic (CAAT) concept for the Terminal Maneuvering Area (TMA) was evaluated in a simulation study at the National Aeronautics and Space Administration (NASA) Langley Research Center. CAAT is being designed to enhance surface situation awareness and provide cockpit alerts of potential conflicts during runway, taxi, and low altitude air-to-air operations. The purpose of the study was to evaluate the initial concept for an aircraft-based method of conflict detection and resolution (CD&R) in the TMA focusing on conflict detection algorithms and alerting display concepts. This paper gives an overview of the CD&R concept, simulation study, and test results.

  2. Dynamic airspace configuration algorithms for next generation air transportation system

    NASA Astrophysics Data System (ADS)

    Wei, Jian

    The National Airspace System (NAS) is under great pressure to safely and efficiently handle the record-high air traffic volume nowadays, and will face even greater challenge to keep pace with the steady increase of future air travel demand, since the air travel demand is projected to increase to two to three times the current level by 2025. The inefficiency of traffic flow management initiatives causes severe airspace congestion and frequent flight delays, which cost billions of economic losses every year. To address the increasingly severe airspace congestion and delays, the Next Generation Air Transportation System (NextGen) is proposed to transform the current static and rigid radar based system to a dynamic and flexible satellite based system. New operational concepts such as Dynamic Airspace Configuration (DAC) have been under development to allow more flexibility required to mitigate the demand-capacity imbalances in order to increase the throughput of the entire NAS. In this dissertation, we address the DAC problem in the en route and terminal airspace under the framework of NextGen. We develop a series of algorithms to facilitate the implementation of innovative concepts relevant with DAC in both the en route and terminal airspace. We also develop a performance evaluation framework for comprehensive benefit analyses on different aspects of future sector design algorithms. First, we complete a graph based sectorization algorithm for DAC in the en route airspace, which models the underlying air route network with a weighted graph, converts the sectorization problem into the graph partition problem, partitions the weighted graph with an iterative spectral bipartition method, and constructs the sectors from the partitioned graph. The algorithm uses a graph model to accurately capture the complex traffic patterns of the real flights, and generates sectors with high efficiency while evenly distributing the workload among the generated sectors. We further improve

  3. The airspace is habitat

    USGS Publications Warehouse

    Diehl, Robert H.

    2013-01-01

    A preconception concerning habitat persists and has gone unrecognized since use of the term first entered the lexicon of ecological and evolutionary biology many decades ago. Specifically, land and water are considered habitats, while the airspace is not. This might at first seem a reasonable, if unintended, demarcation, since years of education and personal experience as well as limits to perception predispose a traditional view of habitat. Nevertheless, the airspace satisfies the definition and functional role of a habitat, and its recognition as habitat may have implications for policy where expanding anthropogenic development of airspace could impact the conservation of species and subject parts of the airspace to formalized legal protection.

  4. Evaluation of an Airborne Spacing Concept to Support Continuous Descent Arrival Operations

    NASA Technical Reports Server (NTRS)

    Murdoch, Jennifer L.; Barmore, Bryan E.; Baxley, Brian T.; Capron, William R.; Abbott, Terence S.

    2009-01-01

    This paper describes a human-in-the-loop experiment of an airborne spacing concept designed to support Continuous Descent Arrival (CDA) operations. The use of CDAs with traditional air traffic control (ATC) techniques may actually reduce an airport's arrival throughput since ATC must provide more airspace around aircraft on CDAs due to the variances in the aircraft trajectories. The intent of airborne self-spacing, where ATC delegates the speed control to the aircraft, is to maintain or even enhance an airport s landing rate during CDA operations by precisely achieving the desired time interval between aircraft at the runway threshold. This paper describes the operational concept along with the supporting airborne spacing tool and the results of a piloted evaluation of this concept, with the focus of the evaluation on pilot acceptability of the concept during off-nominal events. The results of this evaluation show a pilot acceptance of this airborne spacing concept with little negative performance impact over conventional CDAs.

  5. Identification and Analysis of Future Aeronautical Communications Candidates: A Study of Concepts and Technologies to Support the Aeronautical Communications Needs in the NextGen and Beyond National Airspace System

    NASA Technical Reports Server (NTRS)

    Wichgers, Joel M.; Mitchell, James P.

    2015-01-01

    This report describes the results of future aeronautical communications research conducted by Rockwell Collins employees under NRA contract to NASA. The overall goal of this research was to identify and begin to evaluate communication technology candidates expected to meet the long-term aircraft-to-aircraft and aircraft-to-ground data communications needs of Air Traffic Management in the NextGen and beyond National Airspace System (NAS), considering how the NAS and communications technologies will evolve during a 50-year modernization time horizon.

  6. Optimizing Integrated Terminal Airspace Operations Under Uncertainty

    NASA Technical Reports Server (NTRS)

    Bosson, Christabelle; Xue, Min; Zelinski, Shannon

    2014-01-01

    In the terminal airspace, integrated departures and arrivals have the potential to increase operations efficiency. Recent research has developed geneticalgorithm- based schedulers for integrated arrival and departure operations under uncertainty. This paper presents an alternate method using a machine jobshop scheduling formulation to model the integrated airspace operations. A multistage stochastic programming approach is chosen to formulate the problem and candidate solutions are obtained by solving sample average approximation problems with finite sample size. Because approximate solutions are computed, the proposed algorithm incorporates the computation of statistical bounds to estimate the optimality of the candidate solutions. A proof-ofconcept study is conducted on a baseline implementation of a simple problem considering a fleet mix of 14 aircraft evolving in a model of the Los Angeles terminal airspace. A more thorough statistical analysis is also performed to evaluate the impact of the number of scenarios considered in the sampled problem. To handle extensive sampling computations, a multithreading technique is introduced.

  7. Preliminary Airspace Operations Simulations Findings Report

    NASA Technical Reports Server (NTRS)

    2005-01-01

    Provides preliminary findings of the initial series (normal operations and contingency management) of airspace operations simulations. The key elements of this report discuss feedback from controller subjects for UAS flight above FL430. Findings provide initial evaluation of routine UAS operations above dense ARTCC airspace (ZOB), and identify areas of further research, policy direction and procedural development. This document further serves as an addendum to the detailed AOS simulation plan (Deliverable SIM001), incorporating feedback from FAA air traffic personnel and Access 5 IPTs.

  8. Educational Videogames: Concept, Design And Evaluation

    NASA Astrophysics Data System (ADS)

    Rohrlick, D.; Yang, A.; Kilb, D. L.; Ma, L.; Ruzic, R.; Peach, C. L.; Layman, C. C.

    2013-12-01

    Videogames have historically gained popularity thanks to their entertainment rather than their educational value. This may be due, in part, to the fact that many educational videogames present academic concepts in dry, quiz-like ways, without the visual experiences, interactivity, and excitement of non-educational games. The increasing availability of tools that allow designers to easily create rich experiences for players now makes it simpler than ever for educational game designers to generate the visual experiences, interactivity, and excitement that gamers have grown to expect. Based on data from our work, when designed effectively, educational games can engage players, teach concepts, and tear down the stereotype of the stuffy, boring educational game. Our team has been experimenting with different ways to present scientific and mathematical concepts to middle and high school students through engaging, interactive games. When designing a gameplay concept, we focus on what we want the player to learn and experience as well as how to maintain a learning environment that is fun and engaging. Techniques that we have found successful include the use of a series of fast-paced 'minigames,' and the use of a 'simulator' learning method that allows a player to learn by completing objectives similar to those completed by today's scientists. Formative evaluations of our games over the past year have revealed both design strengths and weaknesses. Based on findings from a systematic evaluation of game play with diverse groups, with data collected through in-person observations of game play, knowledge assessments, focus groups, interviews with players, and computer tracking of students' game play behavior, we have found that players are uniformly enthusiastic about the educational tools. At the same time, we find there is more work to be done to make our tools fully intuitive, and to effectively present complex mathematical and scientific concepts to learners from a wide

  9. Generic Airspace Survey

    NASA Technical Reports Server (NTRS)

    Mogford, Richard H.; Bridges, Wayne; Gujarl, Vimmy; Lee, Paul U.; Preston, William

    2013-01-01

    This paper reports on an extension of generic airspace research to explore the amount of memorization and specialized skills required to manage sectors with specific characteristics or factors. Fifty-five retired controllers were given an electronic survey where they rated the amount of memorization or specialized skills needed for sixteen generic airspace factors. The results suggested similarities in the pattern of ratings between different areas of the US (East, Central, and West). The average of the ratings for each area also showed some differences between regions, with ratings being generally higher in the East area. All sixteen factors were rated as moderately to highly important and may be useful for future research on generic airspace, air traffic controller workload, etc.

  10. Notional Airspace Operations Demonstration Plan

    NASA Technical Reports Server (NTRS)

    Trongale, Nicholas A.

    2006-01-01

    The airspace operations demonstration (AOD) is intended to show that the Access 5 Step 1 functional requirements can be met. The demonstration will occur in two phases. The initial on-range phase will be carried out in restricted airspace to demonstrate the cooperative collision avoidance (CCA) functional requirements and to provide risk-reduction for the AOD by allowing the test team to rehearse some elements of the demonstration mission. The CCA system to be used in these flights is based on Automatic Dependent Surveillance-Broadcast (ADS-B) which is a commercially-available system by which airplanes constantly broadcast their current position and altitude to other aircraft and ground resources over a dedicated radio datalink. The final phase will occur in the national airspace (NAS) and will be the formal demonstration of the remainder of the proposed functional requirements. The general objectives of the AOD are as follows: (1) Demonstrate that the UAS can aviate in the NAS (2) Demonstrate that the UAS can navigate in the NAS (3) Demonstrate that the UAS can communicate with the NAS (4) Demonstrate that the UAS can perform selected collision avoidance functions in the NAS (5) Demonstrate that the UAS can evaluate and avoid weather conflicts in the NAS (6) Demonstrate that the UAS can provide adequate command and control in the NAS In addition to the stated objectives, there are a number of goals for the flight demonstration. The demo can be accomplished successfully without achieving these goals, but these goals are to be used as a guideline for preparing for the mission. The goals are: (1) Mission duration of at least 24 hours (2) Loiter over heavy traffic to evaluate the data block issue identified during the Access 5 Airspace Operations Simulations (3) Document the contingency management process and lessons learned (4) Document the coordination process for Ground Control Stations (GCS) handoff (5) Document lessons learned regarding the process of flying in

  11. Hydrogen-enrichment-concept preliminary evaluation

    NASA Technical Reports Server (NTRS)

    Ecklund, E. E.

    1975-01-01

    A hydrogen-enriched fuels concept for automobiles is described and evaluated in terms of fuel consumption and engine exhaust emissions through multicylinder (V-8) automotive engine/hydrogen generator tests, single cylinder research engine (CFR) tests, and hydrogen-generator characterization tests. Analytical predictions are made of the fuel consumption and NO/sub x/ emissions which would result from anticipated engine improvements. The hydrogen-gas generator, which was tested to quantify its thermodynamic input-output relationships was used for integrated testing of the V-8 engine and generator.

  12. Throughput analysis for the National Airspace System

    NASA Astrophysics Data System (ADS)

    Sureshkumar, Chandrasekar

    The United States National Airspace System (NAS) network performance is currently measured using a variety of metrics based on delay. Developments in the fields of wireless communication, manufacturing and other modes of transportation like road, freight, etc. have explored various metrics that complement the delay metric. In this work, we develop a throughput concept for both the terminal and en-route phases of flight inspired by studies in the above areas and explore the applications of throughput metrics for the en-route airspace of the NAS. These metrics can be applied to the NAS performance at each hierarchical level—the sector, center, regional and national and will consist of multiple layers of networks with the bottom level comprising the traffic pattern modelled as a network of individual sectors acting as nodes. This hierarchical approach is especially suited for executive level decision making as it gives an overall picture of not just the inefficiencies but also the aspects where the NAS has performed well in a given situation from which specific information about the effects of a policy change on the NAS performance at each level can be determined. These metrics are further validated with real traffic data using the Future Air Traffic Management Concepts Evaluation Tool (FACET) for three en-route sectors and an Air Route Traffic Control Center (ARTCC). Further, this work proposes a framework to compute the minimum makespan and the capacity of a runway system in any configuration. Towards this, an algorithm for optimal arrival and departure flight sequencing is proposed. The proposed algorithm is based on a branch-and-bound technique and allows for the efficient computation of the best runway assignment and sequencing of arrival and departure operations that minimize the makespan at a given airport. The lower and upper bounds of the cost of each branch for the best first search in the branch-and-bound algorithm are computed based on the minimum

  13. Remotely Operated Aircraft (ROA) Impact on the National Airspace System (NAS) Work Package, 2005: Composite Report on FAA Flight Plan and Operational Evaluation Plan. Version 7.0

    NASA Technical Reports Server (NTRS)

    2005-01-01

    The purpose of this document is to present the findings that resulted from a high-level analysis and evaluation of the following documents: (1) The OEP (Operational Evolution Plan) Version 7 -- a 10-year plan for operational improvements to increase capacity and efficiency in U.S. air travel and transport and other use of domestic airspace. The OEP is the FAA commitment to operational improvements. It is outcome driven, with clear lines of accountability within FAA organizations. The OEP concentrates on operational solutions and integrates safety, certification, procedures, staffing, equipment, avionics and research; (2) The Draft Flight Plan 2006 through 2010 -- a multi-year strategic effort, setting a course for the FAA through 2001, to provide the safest and most efficient air transportation system in the world; (3) The NAS System Architecture Version 5 -- a blueprint for modernizing the NAS and improving NAS services and capabilities through the year 2015; and (4) The NAS-SR-1000 System Requirements Specification (NASSRS) -- a compilation of requirements which describe the operational capabilities for the NAS. The analysis is particularly focused on examining the documents for relevance to existing and/or planned future UAV operations. The evaluation specifically focuses on potential factors that could materially affect the development of a commercial ROA industry, such as: (1) Design limitations of the CNS/ATM system, (2) Human limitations, The information presented was taken from program specifications or program office lead personnel.

  14. Evaluation of the solar disk sextant concept

    NASA Technical Reports Server (NTRS)

    Chiu, H.-Y.

    1984-01-01

    In this paper the viability of the solar disk sextant concept is evaluated, the optimum parameters required to carry out solar variability studies, which are the mission objectives, are derived. The experimental environment is first discussed, followed by the application of the finite Fourier transform definition (FFTD) to the detector array data. The requirements on the optical system are studied next. A computer program was carried out simulating solar edge data and FFTD. From this study, it is concluded that the required accuracy of measurement may be reached using currently available detector array technology, a focal ratio of the optical system in excess of 90, and an entrance aperture of 22 cm. The guidance error must be small enough to require no more than a correction rate of 0.1 arcsec/sec. All these conditions are well within current technology.

  15. Analysis of Different Cost Functions in the Geosect Airspace Partitioning Tool

    NASA Technical Reports Server (NTRS)

    Wong, Gregory L.

    2010-01-01

    A new cost function representing air traffic controller workload is implemented in the Geosect airspace partitioning tool. Geosect currently uses a combination of aircraft count and dwell time to select optimal airspace partitions that balance controller workload. This is referred to as the aircraft count/dwell time hybrid cost function. The new cost function is based on Simplified Dynamic Density, a measure of different aspects of air traffic controller workload. Three sectorizations are compared. These are the current sectorization, Geosect's sectorization based on the aircraft count/dwell time hybrid cost function, and Geosect s sectorization based on the Simplified Dynamic Density cost function. Each sectorization is evaluated for maximum and average workload along with workload balance using the Simplified Dynamic Density as the workload measure. In addition, the Airspace Concept Evaluation System, a nationwide air traffic simulator, is used to determine the capacity and delay incurred by each sectorization. The sectorization resulting from the Simplified Dynamic Density cost function had a lower maximum workload measure than the other sectorizations, and the sectorization based on the combination of aircraft count and dwell time did a better job of balancing workload and balancing capacity. However, the current sectorization had the lowest average workload, highest sector capacity, and the least system delay.

  16. A Psychometric Evaluation of the Digital Logic Concept Inventory

    ERIC Educational Resources Information Center

    Herman, Geoffrey L.; Zilles, Craig; Loui, Michael C.

    2014-01-01

    Concept inventories hold tremendous promise for promoting the rigorous evaluation of teaching methods that might remedy common student misconceptions and promote deep learning. The measurements from concept inventories can be trusted only if the concept inventories are evaluated both by expert feedback and statistical scrutiny (psychometric…

  17. Algorithm of Unmanned Aircraft Systems Displacement in Airspace

    NASA Astrophysics Data System (ADS)

    Gugała, Tomasz

    Despite the fact Unmanned Aerial Vehicles have been used for more than 70 years and their uncommon development has taken place in the first decade of the 21st Century, there is still no elaboration of "Uniform Concept of the Unmanned Aircraft Systems Displacement in Airspace". The indispensable condition of the above mentioned concept has to be flight safety of all airspace users. To achieve this goal, it is necessary to work out the adequate procedures and regulations in the scope of airspace usage taking into consideration this upto- date means of air transport. Therefore, elaboration of the algorithm by the author, can be a reason of achievement for the above mentioned object in the near future. Under such circumstances, the author has taken the trial to perform this challenging task.

  18. Systems evaluation of thermal bus concepts

    NASA Technical Reports Server (NTRS)

    Stalmach, D. D.

    1982-01-01

    Thermal bus concepts, to provide a centralized thermal utility for large, multihundred kilowatt space platforms, were studied and the results are summarized. Concepts were generated, defined, and screened for inclusion in system level thermal bus trades. Parametric trade studies were conducted in order to define the operational envelope, performance, and physical characteristics of each. Two concepts were selected as offering the most promise for thermal bus development. All of four concepts involved two phase flow in order to meet the required isothermal nature of the thermal bus. Two of the concepts employ a mechanical means to circulate the working fluid, a liquid pump in one case and a vapor compressor in another. Another concept utilizes direct osmosis as the driving force of the thermal bus. The fourth concept was a high capacity monogroove heat pipe. After preliminary sizing and screening, three of these concepts were selected to carry into the trade studies. The monogroove heat pipe concept was deemed unsuitable for further consideration because of its heat transport limitations. One additional concept utilizing capillary forces to drive the working fluid was added. Parametric system level trade studies were performed. Sizing and weight calculations were performed for thermal bus sizes ranging from 5 to 350 kW and operating temperatures in the range of 4 to 120 C. System level considerations such as heat rejection and electrical power penalties and interface temperature losses were included in the weight calculations.

  19. 14 CFR 91.705 - Operations within airspace designated as Minimum Navigation Performance Specification Airspace.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Minimum Navigation Performance Specification Airspace. 91.705 Section 91.705 Aeronautics and Space FEDERAL... Operations within airspace designated as Minimum Navigation Performance Specification Airspace. (a) Except as... airspace designated as Minimum Navigation Performance Specifications airspace unless— (1) The aircraft...

  20. Shadow Mode Assessment Using Realistic Technologies for the National Airspace (SMART NAS)

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal H.

    2014-01-01

    Develop a simulation and modeling capability that includes: (a) Assessment of multiple parallel universes, (b) Accepts data feeds, (c) Allows for live virtual constructive distribute environment, (d) Enables integrated examinations of concepts, algorithms, technologies and National Airspace System (NAS) architectures.

  1. Oceanic Flights and Airspace: Improving Efficiency by Trajectory-Based Operations

    NASA Technical Reports Server (NTRS)

    Fernandes, Alicia Borgman; Rebollo, Juan; Koch, Michael

    2016-01-01

    Oceanic operations suffer from multiple inefficiencies, including pre-departure planning that does not adequately consider uncertainty in the proposed trajectory, restrictions on the routes that a flight operator can choose for an oceanic crossing, time-consuming processes and procedures for amending en route trajectories, and difficulties exchanging data between Flight Information Regions (FIRs). These inefficiencies cause aircraft to fly suboptimal trajectories, burning fuel and time that could be conserved. A concept to support integration of existing and emerging capabilities and concepts is needed to transition to an airspace system that employs Trajectory Based Operations (TBO) to improve efficiency and safety in oceanic operations. This paper describes such a concept and the results of preliminary activities to evaluate the concept, including a stakeholder feedback activity, user needs analysis, and high level benefits analysis.

  2. Intelligent aircraft/airspace systems

    NASA Technical Reports Server (NTRS)

    Wangermann, John P.

    1995-01-01

    Projections of future air traffic predict at least a doubling of the number of revenue passenger miles flown by the year 2025. To meet this demand, an Intelligent Aircraft/Airspace System (IAAS) has been proposed. The IAAS operates on the basis of principled negotiation between intelligent agents. The aircraft/airspace system today consists of many agents, such as airlines, control facilities, and aircraft. All the agents are becoming increasingly capable as technology develops. These capabilities should be exploited to create an Intelligent Aircraft/Airspace System (IAAS) that would meet the predicted traffic levels of 2005.

  3. Configuring Airspace Sectors with Approximate Dynamic Programming

    NASA Technical Reports Server (NTRS)

    Bloem, Michael; Gupta, Pramod

    2010-01-01

    In response to changing traffic and staffing conditions, supervisors dynamically configure airspace sectors by assigning them to control positions. A finite horizon airspace sector configuration problem models this supervisor decision. The problem is to select an airspace configuration at each time step while considering a workload cost, a reconfiguration cost, and a constraint on the number of control positions at each time step. Three algorithms for this problem are proposed and evaluated: a myopic heuristic, an exact dynamic programming algorithm, and a rollouts approximate dynamic programming algorithm. On problem instances from current operations with only dozens of possible configurations, an exact dynamic programming solution gives the optimal cost value. The rollouts algorithm achieves costs within 2% of optimal for these instances, on average. For larger problem instances that are representative of future operations and have thousands of possible configurations, excessive computation time prohibits the use of exact dynamic programming. On such problem instances, the rollouts algorithm reduces the cost achieved by the heuristic by more than 15% on average with an acceptable computation time.

  4. En route Spacing Tool: Efficient Conflict-free Spacing to Flow-Restricted Airspace

    NASA Technical Reports Server (NTRS)

    Green, S.

    1999-01-01

    This paper describes the Air Traffic Management (ATM) problem within the U.S. of flow-restricted en route airspace, an assessment of its impact on airspace users, and a set of near-term tools and procedures to resolve the problem. The FAA is committed, over the next few years, to deploy the first generation of modem ATM decision support tool (DST) technology under the Free-Flight Phase-1 (FFp1) program. The associated en route tools include the User Request Evaluation Tool (URET) and the Traffic Management Advisor (TMA). URET is an initial conflict probe (ICP) capability that assists controllers with the detection and resolution of conflicts in en route airspace. TMA orchestrates arrivals transitioning into high-density terminal airspace by providing controllers with scheduled times of arrival (STA) and delay feedback advisories to assist with STA conformance. However, these FFPl capabilities do not mitigate the en route Miles-In-Trail (MIT) restrictions that are dynamically applied to mitigate airspace congestion. National statistics indicate that en route facilities (Centers) apply Miles-In-Trail (MIT) restrictions for approximately 5000 hours per month. Based on results from this study, an estimated 45,000 flights are impacted by these restrictions each month. Current-day practices for implementing these restrictions result in additional controller workload and an economic impact of which the fuel penalty alone may approach several hundred dollars per flight. To mitigate much of the impact of these restrictions on users and controller workload, a DST and procedures are presented. The DST is based on a simple derivative of FFP1 technology that is designed to introduce a set of simple tools for flow-rate (spacing) conformance and integrate them with conflict-probe capabilities. The tool and associated algorithms are described based on a concept prototype implemented within the CTAS baseline in 1995. A traffic scenario is used to illustrate the controller's use of

  5. Identification and Analysis of National Airspace System Resource Constraints

    NASA Technical Reports Server (NTRS)

    Smith, Jeremy C.; Marien, Ty V.; Viken, Jeffery K.; Neitzke, Kurt W.; Kwa, Tech-Seng; Dollyhigh, Samuel M.; Fenbert, James W.; Hinze, Nicolas K.

    2015-01-01

    This analysis is the deliverable for the Airspace Systems Program, Systems Analysis Integration and Evaluation Project Milestone for the Systems and Portfolio Analysis (SPA) focus area SPA.4.06 Identification and Analysis of National Airspace System (NAS) Resource Constraints and Mitigation Strategies. "Identify choke points in the current and future NAS. Choke points refer to any areas in the en route, terminal, oceanic, airport, and surface operations that constrain actual demand in current and projected future operations. Use the Common Scenarios based on Transportation Systems Analysis Model (TSAM) projections of future demand developed under SPA.4.04 Tools, Methods and Scenarios Development. Analyze causes, including operational and physical constraints." The NASA analysis is complementary to a NASA Research Announcement (NRA) "Development of Tools and Analysis to Evaluate Choke Points in the National Airspace System" Contract # NNA3AB95C awarded to Logistics Management Institute, Sept 2013.

  6. Evaluation of Students' Understanding of Thermal Concepts in Everyday Contexts

    ERIC Educational Resources Information Center

    Chu, Hye-Eun; Treagust, David F.; Yeo, Shelley; Zadnik, Marjan

    2012-01-01

    The aims of this study were to determine the underlying conceptual structure of the thermal concept evaluation (TCE) questionnaire, a pencil-and-paper instrument about everyday contexts of heat, temperature, and heat transfer, to investigate students' conceptual understanding of thermal concepts in everyday contexts across several school years and…

  7. Team Primacy Concept (TPC) Based Employee Evaluation and Job Performance

    ERIC Educational Resources Information Center

    Muniute, Eivina I.; Alfred, Mary V.

    2007-01-01

    This qualitative study explored how employees learn from Team Primacy Concept (TPC) based employee evaluation and how they use the feedback in performing their jobs. TPC based evaluation is a form of multirater evaluation, during which the employee's performance is discussed by one's peers in a face-to-face team setting. The study used Kolb's…

  8. Evaluation Concepts and Practices in Selected Distance Education Institutions.

    ERIC Educational Resources Information Center

    Schuemer, Rudolf, Ed.

    This report contains, in addition to the introduction and preface, 13 papers written by individuals working in the field of evaluation who present the concepts and practices of evaluation at their own particular distance education institutions. The introduction (Schuemer) gives a short outline of the evaluation nomenclature and an overview of the…

  9. A psychometric evaluation of the digital logic concept inventory

    NASA Astrophysics Data System (ADS)

    Herman, Geoffrey L.; Zilles, Craig; Loui, Michael C.

    2014-10-01

    Concept inventories hold tremendous promise for promoting the rigorous evaluation of teaching methods that might remedy common student misconceptions and promote deep learning. The measurements from concept inventories can be trusted only if the concept inventories are evaluated both by expert feedback and statistical scrutiny (psychometric evaluation). Classical Test Theory and Item Response Theory provide two psychometric frameworks for evaluating the quality of assessment tools. We discuss how these theories can be applied to assessment tools generally and then apply them to the Digital Logic Concept Inventory (DLCI). We demonstrate that the DLCI is sufficiently reliable for research purposes when used in its entirety and as a post-course assessment of students' conceptual understanding of digital logic. The DLCI can also discriminate between students across a wide range of ability levels, providing the most information about weaker students' ability levels.

  10. Teacher Evaluation: Relevant Concepts and Related Procedures.

    ERIC Educational Resources Information Center

    Carlson, Robert V.; Park, Richard

    The present purposes of teacher evaluation commonly include: (1) professional growth for improvement of instruction; (2) clarifying goals and objectives; (3) measuring progress toward those goals; (4) clarifying inservice needs; (5) judging the contribution of the teacher to pupil progress; (6) determining salary; and (7) determining employment…

  11. Re-evaluation of monitored retrievable storage concepts

    SciTech Connect

    Fletcher, J.F.; Smith, R.I.

    1989-04-01

    In 1983, as a prelude to the monitored retrievable storage (MRS) facility conceptual design, the Pacific Northwest Laboratory (PNL) conducted an evaluation for the US Department of Energy (DOE) that examined alternative concepts for storing spent LWR fuel and high- level wastes from fuel reprocessing. The evaluation was made considering nine concepts for dry away-from-reactor storage. The nine concepts evaluated were: concrete storage cask, tunnel drywell, concrete cask-in-trench, open-cycle vault, metal casks (transportable and stationary), closed-cycle vault, field drywell, and tunnel-rack vault. The purpose and scope of the re-evaluation did not require a repetition of the expert-based examinations used earlier. Instead, it was based on more detailed technical review by a small group, focusing on changes that had occurred since the initial evaluation was made. Two additional storage concepts--the water pool and the horizontal modular storage vault (NUHOMS system)--were ranked along with the original nine. The original nine concepts and the added two conceptual designs were modified as appropriate for a scenario with storage capacity for 15,000 MTU of spent fuel. Costs, area requirements, and technical and historical data pertaining to MRS storage were updated for each concept.

  12. Design and Evaluation of Nextgen Aircraft Separation Assurance Concepts

    NASA Technical Reports Server (NTRS)

    Johnson, Walter; Ho, Nhut; Arutyunov, Vladimir; Laue, John-Luke; Wilmoth, Ian

    2012-01-01

    To support the development and evaluation of future function allocation concepts for separation assurance systems for the Next Generation Air Transportation System, this paper presents the design and human-in-the-loop evaluation of three feasible function allocation concepts that allocate primary aircraft separation assurance responsibilities and workload to: 1) pilots; 2) air traffic controllers (ATC); and 3) automation. The design of these concepts also included rules of the road, separation assurance burdens for aircraft of different equipage levels, and utilization of advanced weather displays paired with advanced conflict detection and resolution automation. Results of the human-in-the-loop simulation show that: a) all the concepts are robust with respect to weather perturbation; b) concept 1 (pilots) had highest throughput, closest to assigned spacing, and fewest violations of speed and altitude restrictions; c) the energy of the aircraft during the descent phase was better managed in concepts 1 and 2 (pilots and ATC) than in concept 3 (automation), in which the situation awareness of pilots and controllers was lowest, and workload of pilots was highest. The paper also discusses further development of these concepts and their augmentation and integration with future air traffic management tools and systems that are being considered for NextGen.

  13. Toward n-Ship Computation of Trajectories for Shared Airspace

    NASA Technical Reports Server (NTRS)

    Moerder, Daniel D.; Rothhaar, Paul M.

    2016-01-01

    This paper considers an approach for modelling transport aircraft trajectories that can facilitate their rapid evaluation and modification, either en route or in terminal control areas, with the goal of efficiently making use of airspace and runways by a large population of vehicles without pairwise violation of separation criteria.

  14. Sire conception rate: New national AI bull fertility evaluation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bull fertility evaluations called Estimated Relative Conception Rate (ERCR) were provided to the industry by Dairy Records Management Systems (DRMS) from 1986 to November 2005. In May 2006, AIPL assumed responsibility for evaluation of U.S. bull fertility. As an initial step, AIPL implemented the ER...

  15. Evaluation of Computer Simulations for Teaching Apparel Merchandising Concepts.

    ERIC Educational Resources Information Center

    Jolly, Laura D.; Sisler, Grovalynn

    1988-01-01

    The study developed and evaluated computer simulations for teaching apparel merchandising concepts. Evaluation results indicated that teaching method (computer simulation versus case study) does not significantly affect cognitive learning. Student attitudes varied, however, according to topic (profitable merchandising analysis versus retailing…

  16. Diagnostic throughput factor analysis for en-route airspace and optimal aircraft trajectory generation based on capacity prediction and controller workload

    NASA Astrophysics Data System (ADS)

    Shin, Sanghyun

    Today's National Airspace System (NAS) is approaching its limit to efficiently cope with the increasing air traffic demand. Next Generation Air Transportation System (NextGen) with its ambitious goals aims to make the air travel more predictable with fewer delays, less time sitting on the ground and holding in the air to improve the performance of the NAS. However, currently the performance of the NAS is mostly measured using delay-based metrics which do not capture a whole range of important factors that determine the quality and level of utilization of the NAS. The factors affecting the performance of the NAS are themselves not well defined to begin with. To address these issues, motivated by the use of throughput-based metrics in many areas such as ground transportation, wireless communication and manufacturing, this thesis identifies the different factors which majorly affect the performance of the NAS as demand (split into flight cancellation and flight rerouting), safe separation (split into conflict and metering) and weather (studied as convective weather) through careful comparison with other applications and performing empirical sensitivity analysis. Additionally, the effects of different factors on the NAS's performance are quantitatively studied using real traffic data with the Future ATM Concepts Evaluation Tool (FACET) for various sectors and centers of the NAS on different days. In this thesis we propose a diagnostic tool which can analyze the factors that have greater responsibility for regions of poor and better performances of the NAS. Based on the throughput factor analysis for en-route airspace, it was found that weather and controller workload are the major factors that decrease the efficiency of the airspace. Also, since resources such as air traffic controllers, infrastructure and airspace are limited, it is becoming increasingly important to use the available resources efficiently. To alleviate the impact of the weather and controller

  17. Feasibility of Mixed Equipage Operations in the Same Airspace

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal; Smith, Nancy; Lee, Katharine K.; Aweiss, Arwa Salem; Lee, Paul U.; Prevot, Thomas; Mercer, Joey; Homola, Jeff; Mainini, Matthew

    2009-01-01

    This study used a human-in-the-loop simulation to examine the feasibility of mixed equipage operations in an automated separation assurance environment under higher traffic densities. The study involved two aircraft equipage alternatives - with and without data link- and four traffic conditions. In all traffic conditions the unequipped traffic count was increased linearly throughout the scenario from approximately 5 to 20 aircraft. Condition One consisted solely of this unequipped traffic, while the remaining three conditions also included a constant number of equipped aircraft operating within the same airspace: 15 equipped aircraft in condition two, 30 in condition three, and 45 in condition four. If traffic load became excessive during any run, participants were instructed to refuse sector entry to inbound unequipped aircraft until sector load became manageable. Results showed a progressively higher number of unequipped aircraft turned away under the second, third, and fourth scenario conditions. Controller workload also increased progressively. Participants rated the mixed operations concept as acceptable, with some qualifications about procedures and information displays. These results showed that mixed operations might be feasible in the same airspace, if unequipped aircraft count is held to a workable level. This level will decrease with increasing complexity. The results imply that integrated airspace configuration is feasible to a limit. The results also indicate that the conflict detection and resolution automation, equipage, and traffic density are important factors that will need to be considered for airspace configuration.

  18. Feasibility of Mixed Equipage Operations in the Same Airspace

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal; Smith, Nancy; Lee, Katharine; Aweiss, Arwa; Lee, Paul U.; Prevot, Thomas; Mercer, Joey; Homola, Jeff; Mainini, Matthew

    2009-01-01

    This study used a human-in-the-loop simulation to examine the feasibility of mixed equipage operations in an automated separation assurance environment under higher traffic densities. The study involved two aircraft equipage alternatives with and without data link and four traffic conditions. In all traffic conditions the unequipped traffic count was increased linearly throughout the scenario from approximately 5 to 20 aircraft. Condition One consisted solely of this unequipped traffic, while the remaining three conditions also included a constant number of equipped aircraft operating within the same airspace: 15 equipped aircraft in condition two, 30 in condition three, and 45 in condition four. If traffic load became excessive during any run, participants were instructed to refuse sector entry to inbound unequipped aircraft until sector load became manageable. Results showed a progressively higher number of unequipped aircraft turned away under the second, third, and fourth scenario conditions. Controller workload also increased progressively. Participants rated the mixed operations concept as acceptable, with some qualifications about procedures and information displays. These results showed that mixed operations might be feasible in the same airspace, if unequipped aircraft count is held to a workable level. This level will decrease with increasing complexity. The results imply that integrated airspace configuration is feasible to a limit. The results also indicate that the conflict detection and resolution automation, equipage, and traffic density are important factors that will need to be considered for airspace configuration.

  19. Evaluation of a pneumatic Martian soil sampler concept

    NASA Technical Reports Server (NTRS)

    Schaefer, John L.; Neathery, James K.; Stencel, John M.

    1994-01-01

    The pneumatic soil sampler concept was successfully demonstrated by penetrating a Martian simulant soil to a depth of 2 meters. Working gas pressure, composition, and pulsing were evaluated with the objective of minimizing gas usage. Also, the probe penetration force was investigated with the objective of minimizing probe weight. Gas and probe penetration force, while not yet optimized, are within the range which make the soil sampler concept feasible. While the tests described in this report did not answer all the questions and address all the variables associated with pneumatic soil sampling, valuable data experience and knowledge were gained which can be used to further develop the concept.

  20. 14 CFR 71.51 - Class C airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS Class C Airspace § 71.51 Class C airspace. The Class C airspace areas listed in subpart C of FAA Order... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Class C airspace. 71.51 Section...

  1. 14 CFR 71.31 - Class A airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRSPACE DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS Class A Airspace § 71.31 Class A airspace. The airspace descriptions contained in § 71.33 and the...

  2. Field Artillery Ammunition Processing System (FAAPS) concept evaluation study

    SciTech Connect

    Kring, C.T.; Babcock, S.M.; Watkin, D.C.; Oliver, R.P.

    1992-06-01

    The Field Artillery Ammunition Processing System (FAAPS) is an initiative to introduce a palletized load system (PLS) that is transportable with an automated ammunition processing and storage system for use on the battlefield. System proponents have targeted a 20% increase in the ammunition processing rate over the current operation while simultaneously reducing the total number of assigned field artillery battalion personnel by 30. The overall objective of the FAAPS Project is the development and demonstration of an improved process to accomplish these goals. The initial phase of the FAAPS Project and the subject of this study is the FAAPS concept evaluation. The concept evaluation consists of (1) identifying assumptions and requirements, (2) documenting the process flow, (3) identifying and evaluating technologies available to accomplish the necessary ammunition processing and storage operations, and (4) presenting alternative concepts with associated costs, processing rates, and manpower requirements for accomplishing the operation. This study provides insight into the achievability of the desired objectives.

  3. Evaluation of Veda, Inc. , central receiver solar collection system concept

    SciTech Connect

    Ator, J.

    1981-08-01

    The Unified Heliostat Array (UHA) is a geometrical heliostat field layout with rows of mirrors placed at various levels on terraces. The Veda Industrial Heliostat (VIH) is a toroidal segment mirror mounted on an equatorial mount. These two concepts are evaluated to assess the credibility of the optical designs and the validity of UHA and VIH performance estimates, to determine what the distinctive features embodied in UHA AND VIH concepts offer that more conventional central receiver technologies do not, and to determine where the UHA and VIH concepts might be most applicable in DOE's Solar Thermal Program. The UHA area efficiency, flux density distribution, and beam safety are evaluated, and the feasibility of using a secondary mirror and the potential for special applications are assessed. The optical design, equatorial mount, and manufacturability of the VIH are evaluated. (LEW)

  4. Technical and economic evaluation of advanced air cargo system concepts

    NASA Technical Reports Server (NTRS)

    Whitehead, A. H., Jr.

    1977-01-01

    The paper reviews NASA air cargo market studies, reports on NASA and NASA-sponsored studies of advanced freighter concepts, and identifies the opportunities for the application of advanced technology. The air cargo market is studied to evaluate the timing for, and the potential market response to, advanced technology aircraft. The degree of elasticity in future air freight markets is also being investigated, since the demand for a new aircraft is most favorable in a price-sensitive environment. Aircraft design studies are considered with attention to mission and design requirements, incorporation of advanced technologies in transport aircraft, new cargo aircraft concepts, advanced freighter evaluation, and civil-military design commonality.

  5. Evaluation: Open Concept School for Indian Education, 1971-72.

    ERIC Educational Resources Information Center

    Sault Sainte Marie Public Schools, MI.

    The Michigan Department of Education's 1971-72 Title III evaluation reports on the Elementary and Secondary Education Act (ESEA), Title I, Open Concept School program for Indian Education in the Sault Sainte Marie Area Public Schools. Of the 185 students in the school, 100 were of American Indian origin; approximately 1/2 were economically and…

  6. Administrator Evaluation: Concepts, Methods, Cases in Higher Education.

    ERIC Educational Resources Information Center

    Farmer, Charles H.

    Designed for faculty and administration in higher education, the book describes concepts, methods, and case studies in the field of administrative assessment. The first section explores issues and perspectives in three chapters authored by Charles H. Farmer: "Why Evaluate Administrators?", "How Can Administrators be…

  7. Enroute flight planning: Evaluating design concepts for the development of cooperative problem-solving concepts

    NASA Technical Reports Server (NTRS)

    Smith, Philip J.; Mccoy, C. Elaine

    1991-01-01

    The goals of this research were to develop design concepts to support the task of enroute flight planning. And within this context, to explore and evaluate general design concepts and principles to guide the development of cooperative problem solving systems. A detailed model is to be developed of the cognitive processes involved in flight planning. Included in this model will be the identification of individual differences of subjects. Of particular interest will be differences between pilots and dispatchers. The effect will be studied of the effect on performance of tools that support planning at different levels of abstraction. In order to conduct this research, the Flight Planning Testbed (FPT) was developed, a fully functional testbed environment for studying advanced design concepts for tools to aid in flight planning.

  8. Evaluation of Design Concepts for Collapsible Cryogenic Storage Vessels

    NASA Technical Reports Server (NTRS)

    Fleming, David C.

    2001-01-01

    Future long-duration missions to Mars using in situ resource production to obtain oxygen from the Martian atmosphere for use as a propellant or for life support will require long term oxygen storage facilities. This report describes preliminary analysis of design concepts for lightweight, collapsible liquid oxygen storage tanks to be used on the surface of Mars. With storage at relatively low pressures, an inflatable tank concept in which the cryogen is stored within a fiber-reinforced Teflon FEP bladder is an efficient approach. The technology required for such a tank is well-developed through similar previous applications in positive expulsion bladders for zero-g liquid fuel rocket tanks and inflatable space habitat technology, though the liquid oxygen environment presents unique challenges. The weight of the proposed structure is largely dominated by the support structure needed to hold the tank off the ground and permit a vacuum insulation space to be maintained around the tank. In addition to the inflatable tank concept, telescoping tank concepts are studied. For a telescoping tank, the greatest difficulty is in making effective joints and seals. The use of shape memory alloy to produce a passive clamping ring is evaluated. Although the telescoping tank concepts are a viable option, it appears that inflatable tank concepts will be more efficient and are recommended.

  9. 77 FR 19076 - Establishment of Class E Airspace; Marion, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ... Airspace at Marion, AL, to accommodate the new Area Navigation (RNAV) Global Positioning System (GPS... management of Instrument Flight Rules (IFR) operations within the National Airspace System. DATES:...

  10. 78 FR 72008 - Establishment of Class E Airspace; Aliceville, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-02

    ... Airspace at Aliceville, AL, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS... airspace required to accommodate the new RNAV (GPS) Standard Instrument Approach Procedures developed...

  11. 75 FR 11475 - Establishment of Class D Airspace, Modification of Class E Airspace; Columbus, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-11

    ... Class E airspace at Columbus Metropolitan Airport, Columbus, GA. A decrease in air traffic volume at the... existing Class E airspace at Columbus, GA. Due to a decrease in air traffic volume at Columbus Metropolitan... ] Columbus Metropolitan Airport, Columbus, GA. Lists of Subjects in 14 CFR Part 71 Airspace, Incorporation...

  12. 75 FR 8285 - Establishment of Class D Airspace, Modification of Class E Airspace; Columbus, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-24

    ... Airspace; Columbus, GA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... airspace at Columbus Metropolitan Airport, Columbus, GA. A decrease in air traffic volume at the airport... existing Class E airspace at Columbus, GA. Due to a decrease in air traffic volume at Columbus...

  13. An Assessment of Civil Tiltrotor Concept of Operations in the Next Generation Air Transportation System

    NASA Technical Reports Server (NTRS)

    Chung, William W.; Salvano, Dan; Rinehart, David; Young, Ray; Cheng, Victor; Lindsey, James

    2012-01-01

    Based on a previous Civil Tiltrotor (CTR) National Airspace System (NAS) performance analysis study, CTR operations were evaluated over selected routes and terminal airspace configurations assuming noninterference operations (NIO) and runway-independent operations (RIO). This assessment aims to further identify issues associated with these concepts of operations (ConOps), and their dependency on the airspace configuration and interaction with conventional fixed-wing traffic. Safety analysis following a traditional Safety Management System (SMS) methodology was applied to CTR-unique departure and arrival failures in the selected airspace to identify any operational and certification issues. Additional CTR operational cases were then developed to get a broader understanding of issues and gaps that will need to be addressed in future CTR operational studies. Finally, needed enhancements to National Airspace System performance analysis tools were reviewed, and recommendations were made on improvements in these tools that are likely to be required to support future progress toward CTR fleet operations in the Next Generation Air Transportation System (NextGen).

  14. User Centered, Application Independent Visualization of National Airspace Data

    NASA Technical Reports Server (NTRS)

    Murphy, James R.; Hinton, Susan E.

    2011-01-01

    This paper describes an application independent software tool, IV4D, built to visualize animated and still 3D National Airspace System (NAS) data specifically for aeronautics engineers who research aggregate, as well as single, flight efficiencies and behavior. IV4D was origin ally developed in a joint effort between the National Aeronautics and Space Administration (NASA) and the Air Force Research Laboratory (A FRL) to support the visualization of air traffic data from the Airspa ce Concept Evaluation System (ACES) simulation program. The three mai n challenges tackled by IV4D developers were: 1) determining how to d istill multiple NASA data formats into a few minimal dataset types; 2 ) creating an environment, consisting of a user interface, heuristic algorithms, and retained metadata, that facilitates easy setup and fa st visualization; and 3) maximizing the user?s ability to utilize the extended range of visualization available with AFRL?s existing 3D te chnologies. IV4D is currently being used by air traffic management re searchers at NASA?s Ames and Langley Research Centers to support data visualizations.

  15. Traffic Management Coordinator Evaluation of the Dynamic Weather Routes Concept and System

    NASA Technical Reports Server (NTRS)

    Gong, Chester

    2014-01-01

    Dynamic Weather Routes (DWR) is a weather-avoidance system for airline dispatchers and FAA traffic managers that continually searches for and advises the user of more efficient routes around convective weather. NASA and American Airlines (AA) have been conducting an operational trial of DWR since July 17, 2012. The objective of this evaluation is to assess DWR from a traffic management coordinator (TMC) perspective, using recently retired TMCs and actual DWR reroutes advisories that were rated acceptable by AA during the operational trial. Results from the evaluation showed that the primary reasons for a TMC to modify or reject airline reroute requests were related to airspace configuration. Approximately 80 percent of the reroutes evaluated required some coordination before implementation. Analysis showed TMCs approved 62 percent of the requested DWR reroutes, resulting in 57 percent of the total requested DWR time savings.

  16. Evaluation of Students' Understanding of Thermal Concepts in Everyday Contexts

    NASA Astrophysics Data System (ADS)

    Chu, Hye-Eun; Treagust, David F.; Yeo, Shelley; Zadnik, Marjan

    2012-07-01

    The aims of this study were to determine the underlying conceptual structure of the thermal concept evaluation (TCE) questionnaire, a pencil-and-paper instrument about everyday contexts of heat, temperature, and heat transfer, to investigate students' conceptual understanding of thermal concepts in everyday contexts across several school years and to analyse the variables-school year, science subjects currently being studied, and science subjects previously studied in thermal energy-that influence students' thermal conceptual understanding. The TCE, which was administered to 515 Korean students from years 10-12, was developed in Australia, using students' alternative conceptions derived from the research literature. The conceptual structure comprised four groups-heat transfer and temperature changes, boiling, heat conductivity and equilibrium, and freezing and melting-using 19 of the 26 items in the original questionnaire. Depending on the year group, 25-55% of students experienced difficulties in applying scientific concepts in everyday contexts. Years of schooling, science subjects currently studied and physics topics previously studied correlated with development of students' conceptual understanding, especially in topics relating to heat transfer, temperature scales, specific heat capacity, homeostasis, and thermodynamics. Although students did improve their conceptual understandings in later years of schooling, they still had difficulties in relating the scientific concepts to their experiences in everyday contexts. The study illustrates the utility of using a pencil-and-paper questionnaire to identify students' understanding of thermal concepts in everyday situations and provides a baseline for Korean students' achievement in terms of physics in everyday contexts, one of the objectives of the Korean national curriculum reforms.

  17. Simulator Evaluation of Airborne Information for Lateral Spacing (AILS) Concept

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.; Elliott, Dawn M.

    2001-01-01

    The Airborne Information for Lateral Spacing (AILS) concept is designed to support independent parallel approach operations to runways spaced as close as 2500 ft. This report describes the AILS operational concept and the results of a ground-based flight simulation experiment of one implementation of this concept. The focus of this simulation experiment was to evaluate pilot performance, pilot acceptability, and minimum miss-distances for the rare situation in which all aircraft oil one approach intrudes into the path of an aircraft oil the other approach. Results from this study showed that the design-goal mean miss-distance of 1200 ft to potential collision situations was surpassed with an actual mean miss-distance of 2236 ft. Pilot reaction times to the alerting system, which was an operational concern, averaged 1.11 sec, well below the design-goal reaction time 2.0 sec.These quantitative results and pilot subjective data showed that the AILS concept is reasonable from an operational standpoint.

  18. An Overview of Current Capabilities and Research Activities in the Airspace Operations Laboratory at NASA Ames Research Center

    NASA Technical Reports Server (NTRS)

    Prevot, Thomas; Smith, Nancy M.; Palmer, Everett; Callantine, Todd; Lee, Paul; Mercer, Joey; Homola, Jeff; Martin, Lynne; Brasil, Connie; Cabrall, Christopher

    2014-01-01

    The Airspace Operations Laboratory at NASA Ames conducts research to provide a better understanding of roles, responsibilities, and requirements for human operators and automation in future air traffic management (ATM) systems. The research encompasses developing, evaluating, and integrating operational concepts and technologies for near-, mid-, and far-term air traffic operations. Current research threads include efficient arrival operations, function allocation in separation assurance and efficient airspace and trajectory management. The AOL has developed powerful air traffic simulation capabilities, most notably the Multi Aircraft Control System (MACS) that is used for many air traffic control simulations at NASA and its partners in government, academia and industry. Several additional NASA technologies have been integrated with the AOL's primary simulation capabilities where appropriate. Using this environment, large and small-scale system-level evaluations can be conducted to help make near-term improvements and transition NASA technologies to the FAA, such as the technologies developed under NASA's Air Traffic Management Demonstration-1 (ATD-1). The AOL's rapid prototyping and flexible simulation capabilities have proven a highly effective environment to progress the initiation of trajectory-based operations and support the mid-term implementation of NextGen. Fundamental questions about accuracy requirements have been investigated as well as realworld problems on how to improve operations in some of the most complex airspaces in the US. This includes using advanced trajectory-based operations and prototype tools for coordinating arrivals to converging runways at Newark airport and coordinating departures and arrivals in the San Francisco and the New York metro areas. Looking beyond NextGen, the AOL has started exploring hybrid human/automation control strategies as well as highly autonomous operations in the air traffic control domain. Initial results

  19. Quantitative characterization of airspace enlargement in emphysema.

    PubMed

    Parameswaran, Harikrishnan; Majumdar, Arnab; Ito, Satoru; Alencar, Adriano M; Suki, Béla

    2006-01-01

    The mean linear intercept (L(m)) can be used to estimate the surface area for gas exchange in the lung. However, in recent years, it is most commonly used as an index for characterizing the enlargement of airspaces in emphysema and the associated severity of structural destruction in the lung. Specifically, an increase in L(m) is thought to result from an increase in airspace sizes. In this paper, we examined how accurately L(m) measures the linear dimensions of airspaces from histological sections and a variety of computer-generated test images. To this end, we developed an automated method for measuring linear intercepts from digitized images of tissue sections and calculate L(m) as their mean. We examined how the shape of airspaces and the variability of their sizes influence L(m) as well as the distribution of linear intercepts. We found that, for a relatively homogeneous enlargement of airspaces, L(m) was a reliable index for detecting emphysema. However, in the presence of spatial heterogeneities with a large variability of airspace sizes, L(m) did not significantly increase and sometimes even decreased compared with its value in normal tissue. We also developed an automated method for measuring the area and computed an equivalent diameter of each individual airspace that is independent of shape. Finally, we introduced new indexes based on the moments of diameter that we found to be more reliable than L(m) to characterize airspace enlargement in the presence of heterogeneities.

  20. 75 FR 18403 - Amendment of Class E Airspace; Rifle, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-12

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Rifle, CO AGENCY... E airspace at Rifle, CO. Additional controlled airspace is necessary to accommodate aircraft... Federal Register a notice of proposed rulemaking to establish additional controlled airspace at Rifle,...

  1. 77 FR 4459 - Amendment of Class E Airspace; Greenfield, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-30

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Greenfield, IA AGENCY... airspace for Greenfield, IA. Decommissioning of the Greenfield non-directional beacon (NDB) at Greenfield... proposed rulemaking to amend Class E airspace for Greenfield, IA, reconfiguring controlled airspace...

  2. 77 FR 29874 - Establishment of Class E Airspace; Freer, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-21

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Freer, TX AGENCY... airspace at Freer, TX. Controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Freer, TX,...

  3. 77 FR 29865 - Amendment of Class E Airspace; Leesville, LA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-21

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Leesville, LA AGENCY... airspace at Leesville, LA. Additional controlled airspace is necessary to ] accommodate new Area Navigation... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Leesville,...

  4. 76 FR 44254 - Amendment of Class D Airspace; Denton, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-25

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Denton, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class D airspace for... proposed rulemaking to amend Class D airspace for Denton, TX, creating additional controlled airspace...

  5. 75 FR 41076 - Establishment of Class E Airspace; Monterey, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-15

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Monterey, CA AGENCY... E airspace at Monterey, CA, to accommodate aircraft using a new Area Navigation (RNAV) Required... the boundaries of the airspace area. Class E airspace designations are published in paragraph 6002...

  6. 78 FR 6726 - Amendment of Class E Airspace; Ontonagon, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-31

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Ontonagon, MI AGENCY... airspace at Ontonagon, MI. Additional controlled airspace is necessary to accommodate new Area Navigation... proposed rulemaking (NPRM) to amend Class E airspace for the Ontonagon, MI, area, creating...

  7. Improved Throughput with Cooperating Futuristic Airspace Management Components

    NASA Technical Reports Server (NTRS)

    Glaab, Patricia C.

    2013-01-01

    An experiment was conducted to integrate airspace management tools that would typically be confined to either the en route or the terminal airspace to explore the potential benefits of their communication to improve arrival capacity. A NAS-wide simulation was configured with a new concept component that used the information to reconfigure the terminal airspace to the capacity benefit of the airport. Reconfiguration included a dynamically expanding and contracting TRACON area and a varying number of active arrival runways, both automatically selected to accommodate predicted volume of traffic. ATL and DFW were selected for the study. Results showed significant throughput increase for scenarios that are considered to be over-capacity for current day airport configurations. During periods of sustained demand for ATL 2018, throughput increased by 26 operations per hour (30%) and average delay was reduced from 18 minutes to 8 minutes per flight when using the dynamic TRACON. Similar results were obtained for DFW with 2018 traffic levels and for ATL with 2006 traffic levels, but with lower benefits due to lower demand.

  8. An evaluation of various concepts of reducing supersonic jet noise

    NASA Technical Reports Server (NTRS)

    Ahuja, K. K.; Manes, J. P.; Massey, K. C.; Calloway, A. B.

    1990-01-01

    Acoustic and flow visualization data from nozzles mounted on the same facility were acquired, and a total of 10 different concepts of jet noise suppression were evaluated relative to one another and also a round nozzle. All nozzles had the same exit area. The suppressors included noncircular shapes; nozzles fitted with notches, tabs, and ejectors; and coaxial rectangular nozzles. Narrow-band noise data were acquired by a microphone located in the plane of the jet exit. In general, it is found that, for a constant exit area, the round nozzle is the noisiest. Just about any modification of this round nozzle around its periphery reduces the broadband shock-associated noise and, in most instances, modifies the screech frequency and levels. Coaxial rectangular nozzles, nozzles fitted with two tabs and operated with ejectors, and a rectangular C-D nozzles with perforated walls are identified to be the most promising concepts worthy of further investigation.

  9. Global cost and weight evaluation of fuselage keel design concepts

    NASA Technical Reports Server (NTRS)

    Flynn, B. W.; Morris, M. R.; Metschan, S. L.; Swanson, G. D.; Smith, P. J.; Griess, K. H.; Schramm, M. R.; Humphrey, R. J.

    1993-01-01

    The Boeing program entitled Advanced Technology Composite Aircraft Structure (ATCAS) is focused on the application of affordable composite technology to pressurized fuselage structure of future aircraft. As part of this effort, a design study was conducted on the keel section of the aft fuselage. A design build team (DBT) approach was used to identify and evaluate several design concepts which incorporated different material systems, fabrication processes, structural configurations, and subassembly details. The design concepts were developed in sufficient detail to accurately assess their potential for cost and weight savings as compared with a metal baseline representing current wide body technology. The cost and weight results, along with an appraisal of performance and producibility risks, are used to identify a globally optimized keel design; one which offers the most promising cost and weight advantages over metal construction. Lastly, an assessment is given of the potential for further cost and weight reductions of the selected keel design during local optimization.

  10. Pavement Evaluation Concepts Using Nondestructive Structural Evaluation and Pavement Condition Index.

    DTIC Science & Technology

    1987-04-01

    FILE COPY P~MISCELLANEOUS PAPER GL-87-5 PAVEMENT EVALUATION CONCEPTS USING * i NONDESTRUCTIVE STRUCTURAL EVALUATION AND PAVEMENT CONDITION INDEX by...Nondestructive Structural Evaluation and Pavement Condition Index 12, PERSONAL AUTHOR(S) Hall, Jim W., Jr. 13a. TYPE OF REPORT 13b. TIME COVERED 14. DATE OF... index and results of nondestructive testing structural evaluation. A flowchart outlining the decision process of identifyinp appropriate alternatives

  11. Simulation evaluation of helicopter Terrain Following/Terrain Avoidance concepts

    NASA Technical Reports Server (NTRS)

    Swenson, Herry N.; Hardy, Gordon H.; Morris, Pat M.

    1988-01-01

    A helicopter Terrain-Following/Terrain-Avoidance (TF/TA) system was developed and evaluated using a real-time piloted simulation. The TF/TA system included a guidance algorithm based upon dynamic programming and a head-up display (HUD) concept which incorporates a pathway in the sky, a phantom aircraft, and flightpath vector/predictor symbology. The simulation was conducted at the NASA Ames Research Center Interchangeable Cab (ICAB) Laboratory using NASA test pilots. The pilots performed the TF/TA task by manually tracking the HUD symbology. The pilots were able to satisfactorily perform the TF/TA tasks with an acceptable level of pilot workload.

  12. Post Landsat-D advanced concept evaluation /PLACE/

    NASA Technical Reports Server (NTRS)

    Alexander, L. D.; Alvarado, U. R.; Flatow, F. S.

    1979-01-01

    The aim of the Post Landsat-D Advanced Concept Evaluation (PLACE) program was to identify the key technology requirements of earth resources satellite systems for the 1985-2000 period. The program involved four efforts: (1) examination of future needs in the earth resources area, (2) creation of a space systems technology model capable of satisfying these needs, (3) identification of key technology requirements posed by this model, and (4) development of a methodology (PRISM) to assist in the priority structuring of the resulting technologies.

  13. Research Initiatives and Preliminary Results In Automation Design In Airspace Management in Free Flight

    NASA Technical Reports Server (NTRS)

    Corker, Kevin; Lebacqz, J. Victor (Technical Monitor)

    1997-01-01

    The NASA and the FAA have entered into a joint venture to explore, define, design and implement a new airspace management operating concept. The fundamental premise of that concept is that technologies and procedures need to be developed for flight deck and ground operations to improve the efficiency, the predictability, the flexibility and the safety of airspace management and operations. To that end NASA Ames has undertaken an initial development and exploration of "key concepts" in the free flight airspace management technology development. Human Factors issues in automation aiding design, coupled aiding systems between air and ground, communication protocols in distributed decision making, and analytic techniques for definition of concepts of airspace density and operator cognitive load have been undertaken. This paper reports the progress of these efforts, which are not intended to definitively solve the many evolving issues of design for future ATM systems, but to provide preliminary results to chart the parameters of performance and the topology of the analytic effort required. The preliminary research in provision of cockpit display of traffic information, dynamic density definition, distributed decision making, situation awareness models and human performance models is discussed as they focus on the theme of "design requirements".

  14. Evaluation of the concept of pressure proof testing fuselage structures

    NASA Technical Reports Server (NTRS)

    Harris, Charles E.; Orringer, Oscar

    1991-01-01

    The FAA and NASA have recently completed independent technical evaluations of the concept of pressure proof testing the fuselage of commercial transport airplanes. The results of these evaluations are summarized. The objectives of the evaluations were to establish the potential benefit of the pressure proof test, to quantify the most desirable proof test pressure, and to quantify the required proof test interval. The focus of the evaluations was on multiple-site cracks extending from adjacent rivet holes of a typical fuselage longitudinal lap splice joint. The FAA and NASA do not support pressure proof testing the fuselage of aging commercial transport aircraft. The argument against proof testing is as follows: (1) a single proof test does not insure an indefinite life; therefore, the proof test must be repeated at regular intervals; (2) for a proof factor of 1.33, the required proof test interval must be below 300 flights to account for uncertainties in the evaluation; (3) conducting the proof test at a proof factor of 1.5 would considerably exceed the fuselage design limit load; therefore, it is not consistent with accepted safe practices; and (4) better safety can be assured by implementing enhanced nondestructive inspection requirements, and adequate reliability can be achieved by an inspection interval several times longer than the proof test interval.

  15. Group concept mapping for evaluation and development in nursing education.

    PubMed

    Hagell, Peter; Edfors, Ellinor; Hedin, Gita; Westergren, Albert; Hammarlund, Catharina Sjödahl

    2016-09-01

    The value of course evaluations has been debated since they frequently fail to capture the complexity of education and learning. Group Concept Mapping (GCM), a participant-centred mixed-method was explored as a tool for evaluation and development in nursing education and to better understand students' learning experiences, using data from a GCM-based evaluation of a research training assignment integrating clinical practice and research data collection within a Swedish university nursing program. Student nurses (n = 47) participated in a one-day GCM exercise. Focus group brainstorming regarding experiences from the assignment that the students considered important and instructive yielded 98 statements that were individually sorted based on their student-perceived relationships, and rated regarding their importance/instructiveness and need for development. Quantitative analysis of sort data produced a 2-dimensional map representing their conceptual relationships, and eight conceptual areas. Average cluster ratings were plotted relative to each other and provided a decision aid for development and planning by identifying areas (i.e., "Research methodology", "Patients' perspectives", and "Interviewer role") considered highly important/instructive and in high need for development. These experiences illustrate the use and potential of GCM as an interactive participant-centred approach to evaluation, planning and development in nursing and other higher health science educations.

  16. Concept Maps for Evaluating Learning of Sustainable Development

    ERIC Educational Resources Information Center

    Shallcross, David C.

    2016-01-01

    Concept maps are used to assess student and cohort learning of sustainable development. The concept maps of 732 first-year engineering students were individually analyzed to detect patterns of learning and areas that were not well understood. Students were given 20 minutes each to prepare a concept map of at least 20 concepts using paper and pen.…

  17. Computational Evaluation of Airframe Noise Reduction Concepts at Full Scale

    NASA Technical Reports Server (NTRS)

    Khorrami, Mehdi R.; Duda, Benjamin; Hazir, Andreas; Fares, Ehab

    2016-01-01

    High-fidelity simulations focused on full-scale evaluation of new technologies for mitigating flap and landing gear noise are presented. These noise reduction concepts were selected because of their superior acoustic performance, as demonstrated during NASA wind tunnel tests of an 18%-scale, semi-span model of a Gulfstream aircraft. The full-scale, full-aircraft, time-accurate simulations were performed with the lattice Boltzmann PowerFLOW(Registered Trademark) solver for free air at a Mach number of 0.2. Three aircraft configurations (flaps deflected at 39? without and with main gear deployed, and 0? flaps with main gear extended) were used to determine the aero-acoustic performance of the concepts on component-level (individually) and system-level (concurrent applica-tion) bases. Farfield noise spectra were obtained using a Ffowcs-Williams and Hawkings acoustic analogy approach. Comparison of the predicted spectra without (baseline) and with the noise treatments applied showed that noise reduction benefits between 2-3 dB for the flap and 1.3-1.7 dB for the main landing gear are obtained. It was also found that the full extent of the benefits is being masked by the noise generated from the flap brackets and main gear cavities, which act as prominent secondary sources.

  18. The Federated Satellite Systems paradigm: Concept and business case evaluation

    NASA Astrophysics Data System (ADS)

    Golkar, Alessandro; Lluch i Cruz, Ignasi

    2015-06-01

    This paper defines the paradigm of Federated Satellite Systems (FSS) as a novel distributed space systems architecture. FSS are networks of spacecraft trading previously inefficiently allocated and unused resources such as downlink bandwidth, storage, processing power, and instrument time. FSS holds the promise to enhance cost-effectiveness, performance and reliability of existing and future space missions, by networking different missions and effectively creating a pool of resources to exchange between participants in the federation. This paper introduces and describes the FSS paradigm, and develops an approach integrating mission analysis and economic assessments to evaluate the feasibility of the business case of FSS. The approach is demonstrated on a case study on opportunities enabled by FSS to enhance space exploration programs, with particular reference to the International Space Station. The application of the proposed methodology shows that the FSS concept is potentially able to create large commercial markets of in-space resources, by providing the technical platform to offer the opportunity for spacecraft to share or make use of unused resources within their orbital neighborhood. It is shown how the concept is beneficial to satellite operators, space agencies, and other stakeholders of the space industry to more flexibly interoperate space systems as a portfolio of assets, allowing unprecedented collaboration among heterogeneous types of missions.

  19. High Temperature Evaluation of an Active Clearance Control System Concept

    NASA Technical Reports Server (NTRS)

    Taylor, Shawn C.; Steinetz, Bruce M.; Oswald, Jay J.

    2006-01-01

    A mechanically actuated blade tip clearance control concept was evaluated in a nonrotating test rig to quantify secondary seal leakage at elevated temperatures. These tests were conducted to further investigate the feasibility of actively controlling the clearance between the rotor blade tips and the surrounding shroud seal in the high pressure turbine (HPT) section of a turbine engine. The test environment simulates the state of the back side of the HPT shroud seal with pressure differentials as high as 120 psig and temperatures up to 1000 F. As expected, static secondary seal leakage decreased with increasing temperature. At 1000 F, the test rig's calculated effective clearance (at 120 psig test pressure) was 0.0003 in., well within the industry specified effective clearance goal.

  20. Evaluating Space Network (SN) scheduling operations concepts through statistical analysis

    NASA Technical Reports Server (NTRS)

    Kwadrat, Carl; Happell, Nadine

    1994-01-01

    The Network Control Center (NCC) currently uses the NCC Data System (NCCDS) to schedule customer spacecraft communication requests for the Space Network (SN). The NCC/Request Oriented Scheduling Engine (NCC/ROSE), which implements an operational concept called flexible scheduling, is being tested as a potential replacement for the NCCDS scheduler in an effort to increase the efficiency of the NCC scheduling operations. This paper describes the high fidelity benchmark tests being conducted on NCC/ROSE, the evaluation techniques used to compare schedules, and the results of the tests. This testing will verify the increases in efficiency and productivity that can help the NCC meet the anticipated scheduling loads well into the next century.

  1. Experimental evaluation of the Skylab orbital workshop ventilation system concept

    NASA Technical Reports Server (NTRS)

    Allums, S. L.; Hastings, L. J.; Ralston, J. T.

    1972-01-01

    Extensive testing was conducted to evaluate the Orbital Workshop ventilation concept. Component tests were utilized to determine the relationship between operating characteristics at 1 and 0.34 atm. System tests were conducted at 1 atm within the Orbital Workshop full-scale mockup to assess delivered volumetric flow rate and compartment air velocities. Component tests with the Anemostat circular diffusers (plenum- and duct-mounted) demonstrated that the diffuser produced essentially equivalent airflow patterns and velocities in 1- and 0.34-atm environments. The tests also showed that the pressure drop across the diffuser could be scaled from 1 to 0.34 atm using the atmosphere pressure ratio. Fan tests indicated that the performance of a multiple, parallel-mounted fan cluster could be predicted by summing the single-fan flow rates at a given delta P.

  2. Comparing Methods for Dynamic Airspace Configuration

    NASA Technical Reports Server (NTRS)

    Zelinski, Shannon; Lai, Chok Fung

    2011-01-01

    This paper compares airspace design solutions for dynamically reconfiguring airspace in response to nominal daily traffic volume fluctuation. Airspace designs from seven algorithmic methods and a representation of current day operations in Kansas City Center were simulated with two times today's demand traffic. A three-configuration scenario was used to represent current day operations. Algorithms used projected unimpeded flight tracks to design initial 24-hour plans to switch between three configurations at predetermined reconfiguration times. At each reconfiguration time, algorithms used updated projected flight tracks to update the subsequent planned configurations. Compared to the baseline, most airspace design methods reduced delay and increased reconfiguration complexity, with similar traffic pattern complexity results. Design updates enabled several methods to as much as half the delay from their original designs. Freeform design methods reduced delay and increased reconfiguration complexity the most.

  3. Evaluation of Students' Energy Conception in Environmental Science

    ERIC Educational Resources Information Center

    Park, Mihwa; Johnson, Joseph A.

    2016-01-01

    While significant research has been conducted on students' conceptions of energy, alternative conceptions of energy have not been actively explored in the area of environmental science. The purpose of this study is to examine students' alternative conceptions in the environmental science discipline through the analysis of responses of first year…

  4. Facilitating Children's Self-Concept: A Rationale and Evaluative Study

    ERIC Educational Resources Information Center

    Hay, Ian

    2005-01-01

    This study reports on the design and effectiveness of the Exploring Self-Concept program for primary school children using self-concept as the outcome measure. The program aims to provide a procedure that incorporates organisation, elaboration, thinking, and problem-solving strategies and links these to children's multidimensional self-concept.…

  5. Conceptual design and evaluation of selected Space Station concepts, volume 1

    NASA Technical Reports Server (NTRS)

    1983-01-01

    Space Station configuration concepts are defined to meet the NASA Headquarters Concept Development Group (CDG) requirements. Engineering and programmatic data are produced on these concepts suitable for NASA and industry dissemination. A data base is developed for input to the CDG's evaluation of generic Space Station configurations and for use in the critique of the CDG's generic configuration evaluation process.

  6. Space transfer vehicle concepts and requirements study. Volume 2, book 1: STV concept definition and evaluation

    NASA Technical Reports Server (NTRS)

    Weber, Gary A.

    1991-01-01

    The topics covered include the following: mission analysis; initial and evolutionary space transfer vehicle (STV) concept definition; configuration and subsystem trade studies; and operations and logistics.

  7. Concept of REACH and impact on evaluation of chemicals.

    PubMed

    Foth, H; Hayes, Aw

    2008-01-01

    Industrial chemicals have been in use for many decades and new products are regularly invented and introduced to the market. Also for decades, many different chemical laws have been introduced to regulate safe handling of chemicals in different use patterns. The patchwork of current regulation in the European Union is to be replaced by the new regulation on industrial chemical control, REACH. REACH stands for registration, evaluation, and authorization of chemicals. REACH entered force on June 1, 2007. REACH aims to overcome limitations in testing requirements of former regulation on industrial chemicals to enhance competitiveness and innovation with regard to manufacture safer substances and to promote the development of alternative testing methods. A main task of REACH is to address data gaps regarding the properties and uses of industrial chemicals. Producers, importers, and downstream users will have to compile and communicate standard information for all chemicals. Information sets to be prepared include safety data sheets (SDS), chemical safety reports (CSR), and chemical safety assessments (CSA). These are designed to guarantee adequate handling in the production chain, in transport and in use and to prevent the substances from being released to and distributed within the environment. Another important aim is to identify the most harmful chemicals and to set incentives to substitute them with safer alternatives. On one hand, REACH will have substantial impact on the basic understanding of the evaluation of chemicals. However, the toxicological sciences can also substantially influence the workability of REACH that supports the transformation of data to the information required to understand and manage acceptable and non acceptable risks in the use of industrial chemicals. The REACH regulation has been laid down in the main document and 17 Annexes of more than 849 pages. Even bigger technical guidance documents will follow and will inform about the rules for

  8. Final Overview of ACES Simulation for Evaluation SARP Well-Clear Definitions

    NASA Technical Reports Server (NTRS)

    Santiago, Confesor; Johnson, Marcus A.; Isaacson, Doug; Hershey, David

    2014-01-01

    The UAS in the NAS project is studying the minimum operational performance standards for unmanned aerial systems (UAS's) detect-and-avoid (DAA) system in order to operate in the National Airspace System. The DoD's Science and research Panel (SARP) Well-Clear Workshop is investigating the time and spatial boundary at which an UAS violates well-clear. NASA is supporting this effort through use of its Airspace Concept Evaluation System (ACES) simulation platform. This briefing presents the final results to the SARP, which will be used to judge the three candidate well-clear definitions, and for the selection of the most operationally suitable option.

  9. 76 FR 80230 - Amendment of Class E Airspace; Huntington, WV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-23

    ... 14 CFR Part 71 [Docket No. FAA-2011-1057; Airspace Docket No. 11-AEA-21] Amendment of Class E... amend Class E airspace at Huntington, WV (76 FR 64295) Docket No. FAA-2011-1057. Interested parties...

  10. 75 FR 19212 - Modification of Class E Airspace; Oxnard, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-14

    ... accommodate aircraft flying in the Los Angeles Air Route Traffic Control Center's (ARTCC's) airspace area. The... vectoring of aircraft flying en route, in and out of the Los Angeles ARTCC's airspace area. This...

  11. 76 FR 65944 - Establishment of Class E Airspace; Tatitlek, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-25

    ... airspace at Tatitlek, AK, to accommodate the creation of one standard instrument approach procedure at the... airspace at the Tatitlek Airport, Tatitlek, AK, to accommodate the creation of a standard...

  12. Self-concept evaluation and migraine without aura in childhood

    PubMed Central

    Esposito, Maria; Gallai, Beatrice; Parisi, Lucia; Castaldo, Laura; Marotta, Rosa; Lavano, Serena Marianna; Mazzotta, Giovanni; Roccella, Michele; Carotenuto, Marco

    2013-01-01

    Introduction Self-esteem is related to the broadly understood concept of self-schemas and is a crucial mechanism for a correct psychological development in children and adolescents. The impact of the many psychological difficulties linked to the migraine without aura (MoA) and recurrent headache attacks, such as anger and separation anxiety, on self-esteem has not yet been well investigated. The aims of the present study were to assess self-esteem levels in an objective way and to verify their possible relationship and correlation with the frequency and intensity of migraine attacks, in a population of children and adolescents affected by MoA. Methods The study population was comprised of 185 children (88 males [M],97 females [F]) aged between 6 and 12 years (mean 9.04 ± 2.41 years) referred consecutively for MoA to the Center for Childhood Headache, Clinic of Child and Adolescent Neuropsychiatry, Second University of Naples and of 203 healthy controls (95 M, 108 F) with mean age 9.16 ± 2.37 years, recruited from schools in Campania. The monthly headache frequency and the mean headache duration were assessed from daily headache diaries kept by all the children, and MoA intensity was assessed on a VAS (visual analog scale). To further evaluate their level of self-concept, all subjects filled out the Multidimensional Self-Concept Scale (MSCS). Results The two study groups were comparable for age (P = 0.621), sex (P = 0.960), and z-score BMI (P = 0.102). The MoA group showed a significant reduction in the MSCS total score (P < 0.001) and in the Social (P < 0.001), Affect (P < 0.001), Family (P < 0.001), and Physical (P < 0.001) domains of the MSCS compared with the control group. The Pearson’s correlation analysis showed a significantly negative relationship between MoA clinical characteristics and MSCS scores, and similarly the frequency of attacks was significantly negatively related with the Social (r = −0.3176; P < 0.001), Competence (r = −0.2349; P = 0

  13. Contemporary concepts in the evaluation and management of male infertility

    PubMed Central

    Hwang, Kathleen; Walters, R. Chanc; Lipshultz, Larry I.

    2013-01-01

    Infertility in men is a common condition. At the core of the medical evaluation of the male partner in a couple who are unable to conceive is the history and physical examination. Special attention should be directed to the patient’s developmental history and any use of testosterone products. The physical examination focuses on the genitals, and includes assessments of the size and consistency of the testicles, epididymis, vas deferens, and presence of varicoceles. Although many sophisticated tests are available, semen analysis is still the most important diagnostic tool used to assess fertility, and includes parameters such as sperm count, motility and viability. Treatment of male factor infertility can involve targeted agents, in the case of specific conditions such as hypogonadotropic hypogonadism, or it can be empirical—using medical therapy or assisted conception techniques—for patients in whom no underlying cause has been identified. Although an all-encompassing treatment for male factor infertility has not yet been developed, the field offers many promising avenues of research. PMID:21243017

  14. Experimental evaluation of outer planets probe thermal insulation concepts

    NASA Technical Reports Server (NTRS)

    Grote, M. G.; Mezines, S. A.

    1976-01-01

    An experimental program was conducted to evaluate various thermal insulation concepts for use in the Outer Planets Probe (OPP) during entry and descent into the atmospheres of Jupiter, Saturn, and Uranus. Phenolic fiberglass honeycomb specimens representative of the OPP structure were packed and tested with various fillers: Thermal conductivity measurements were made over a temperature range of 300 K to 483 K and pressures from vacuum up to 10 atmospheres in helium and nitrogen gas environments. The conductivity results could not be fully explained so new test specimens were designed with improved venting characteristics, and tested to determine the validity of the original data. All of the conductivity data showed results that were substantially higher than expected. The original test data in helium were lower than the data from the redesigned specimens, probably due to inadequate venting of nitrogen gas from the original specimens. The thermal conductivity test results show only a marginal improvement in probe thermal protection performance for a filled honeycomb core compared to an unfilled core. In addition, flatwise tension tests showed a severe bond strength degradation due to the inclusion of either the powder or foam fillers. In view of these results, it is recommended that the baseline OPP design utilize an unfilled core.

  15. Modular algorithm concept evaluation tool (MACET) sensor fusion algorithm testbed

    NASA Astrophysics Data System (ADS)

    Watson, John S.; Williams, Bradford D.; Talele, Sunjay E.; Amphay, Sengvieng A.

    1995-07-01

    Target acquisition in a high clutter environment in all-weather at any time of day represents a much needed capability for the air-to-surface strike mission. A considerable amount of the research at the Armament Directorate at Wright Laboratory, Advanced Guidance Division WL/MNG, has been devoted to exploring various seeker technologies, including multi-spectral sensor fusion, that may yield a cost efficient system with these capabilities. Critical elements of any such seekers are the autonomous target acquisition and tracking algorithms. These algorithms allow the weapon system to operate independently and accurately in realistic battlefield scenarios. In order to assess the performance of the multi-spectral sensor fusion algorithms being produced as part of the seeker technology development programs, the Munition Processing Technology Branch of WL/MN is developing an algorithm testbed. This testbed consists of the Irma signature prediction model, data analysis workstations, such as the TABILS Analysis and Management System (TAMS), and the Modular Algorithm Concept Evaluation Tool (MACET) algorithm workstation. All three of these components are being enhanced to accommodate multi-spectral sensor fusion systems. MACET is being developed to provide a graphical interface driven simulation by which to quickly configure algorithm components and conduct performance evaluations. MACET is being developed incrementally with each release providing an additional channel of operation. To date MACET 1.0, a passive IR algorithm environment, has been delivered. The second release, MACET 1.1 is presented in this paper using the MMW/IR data from the Advanced Autonomous Dual Mode Seeker (AADMS) captive flight demonstration. Once completed, the delivered software from past algorithm development efforts will be converted to the MACET library format, thereby providing an on-line database of the algorithm research conducted to date.

  16. Scheduling and Separating Departures Crossing Arrival Flows in Shared Airspace

    NASA Technical Reports Server (NTRS)

    Chevalley, Eric; Parke, Bonny K.; Lee, Paul; Omar, Faisal; Lee, Hwasoo; Beinert, Nancy; Kraut, Joshua M.; Palmer, Everett

    2013-01-01

    Flight efficiency and reduction of flight delays are among the primary goals of NextGen. In this paper, we propose a concept of shared airspace where departures fly across arrival flows, provided gaps are available in these flows. We have explored solutions to separate departures temporally from arrival traffic and pre-arranged procedures to support controllers' decisions. We conducted a Human-in-the-Loop simulation and assessed the efficiency and safety of 96 departures from the San Jose airport (SJC) climbing across the arrival airspace of the Oakland and San Francisco arrival flows. In our simulation, the SJC tower had a tool to schedule departures to fly across predicted gaps in the arrival flow. When departures were mistimed and separation could not be ensured, a safe but less efficient route was provided to the departures to fly under the arrival flows. A coordination using a point-out procedure allowed the arrival controller to control the SJC departures right after takeoff. We manipulated the accuracy of departure time (accurate vs. inaccurate) as well as which sector took control of the departures after takeoff (departure vs. arrival sector) in a 2x2 full factorial plan. Results show that coordination time decreased and climb efficiency increased when the arrival sector controlled the aircraft right after takeoff. Also, climb efficiency increased when the departure times were more accurate. Coordination was shown to be a critical component of tactical operations in shared airspace. Although workload, coordination, and safety were judged by controllers as acceptable in the simulation, it appears that in the field, controllers would need improved tools and coordination procedures to support this procedure.

  17. [Analysis of dental students' knowledge and concepts in oral health: evaluation by concept maps].

    PubMed

    Struchiner, M; Vieira, A R; Ricciardi, R M

    1999-11-01

    This study sought to analyze senior dental students' cognitive structure concerning the topic of "enamel", which is fundamentally important for understanding oral health, since it offers basic scientific concepts for clinical and preventive practices and is the main subject of several courses during dentistry training. The strategy used to analyze students' cognitive structures was Novak's Concept Maps, based on Ausubel's Meaningful Learning theory. Analysis of students' maps allowed for a study of students' cognitive structure and concepts concerning oral health. It also fostered a diagnosis of students' knowledge in several important aspects of scientific and professional training. The results highlighted the need for rethinking the teaching/learning process in dentistry training.

  18. 75 FR 57848 - Revocation of Class E Airspace, Brunswick, ME; and Establishment of Class E Airspace, Wiscasset, ME

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-23

    ...: Final rule. SUMMARY: This action removes Class E Airspace at Brunswick NAS, Brunswick, ME, as the..., Code of Federal Regulations (14 CFR) part 71 removes the Class E airspace at Brunswick NAS,...

  19. 78 FR 48298 - Amendment of Class E Airspace; Commerce, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Commerce, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at Commerce, TX. Additional controlled airspace is necessary to accommodate new Area Navigation...

  20. 75 FR 57376 - Modification of Class B Airspace; Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-21

    ... Federal Aviation Administration 14 CFR Part 71 RIN 2120-AA66 Modification of Class B Airspace; Chicago, IL... Chicago, IL, Class B airspace area by expanding the existing airspace area to ensure containment of... segregating IFR aircraft arriving/departing Chicago O'Hare International Airport (ORD) and Visual Flight...

  1. 76 FR 15825 - Amendment of Class E Airspace; Pueblo, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-22

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Pueblo, CO AGENCY: Federal... airspace at Pueblo Memorial Airport, Pueblo, CO, to facilitate vectoring of Instrument Flight Rules (IFR... proposed rulemaking to amend Class E airspace at Pueblo, CO (76 FR 2609). Interested parties were...

  2. 77 FR 19929 - Amendment of Class E Airspace; Springfield, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Springfield, CO AGENCY... airspace at Springfield Municipal Airport, Springfield, CO. Decommissioning of the Tobe Tactical Air... amend controlled airspace at Springfield, CO (77 FR 1429). Interested parties were invited...

  3. 75 FR 16333 - Establishment of Class E Airspace; Quitman, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-01

    ... scope of that authority as it establishes Class E airspace at Quitman, GA. Lists of Subjects in 14 CFR... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Quitman, GA AGENCY... action establishes Class E Airspace at Quitman, GA, to accommodate Standard Instrument...

  4. 76 FR 67056 - Amendment of Class E Airspace; Bryan, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... airspace for Bryan, OH. Decommissioning of the Bryan non-directional beacon (NDB) at Williams County... proposed rulemaking to amend Class E airspace for Bryan, OH, reconfiguring controlled airspace at Williams... Bryan NDB and cancellation of the NDB approach at Williams County Airport has made reconfiguration...

  5. 75 FR 31677 - Amendment of Class E Airspace; Austin, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-04

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Austin, TX AGENCY... airspace for the Austin, TX area. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAPs) at Austin Executive Airport, Austin, TX. The FAA is taking this...

  6. 77 FR 45238 - Amendment of Class E Airspace; Montgomery, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Montgomery, AL AGENCY... amends Class E Airspace in the Montgomery, AL area, by recognizing the name change of Prattville-Grouby... Federal Regulations (14 CFR) part 71 amends Class E airspace for the Montgomery, AL, area at the...

  7. 76 FR 80232 - Establishment of Class E Airspace; Oneonta, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-23

    ... Airspace; Oneonta, AL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E Airspace at Oneonta, AL, to accommodate the new Area Navigation (RNAV) Global... establish Class E airspace at Oneonta, AL (76 FR 58728) Docket No. FAA-2011-0744. Interested parties...

  8. 76 FR 18041 - Establishment of Class E Airspace; Kahului, HI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Kahului, HI AGENCY... E airspace at Kahului Airport, Kahului, HI, to accommodate aircraft using Area Navigation (RNAV... establish controlled airspace at Kahului, HI (76 FR 3571). Interested parties were invited to participate...

  9. 75 FR 63708 - Establishment of Class E Airspace; Kalaupapa, HI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-18

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Kalaupapa, HI AGENCY... E airspace at Kalaupapa, HI, to accommodate aircraft using a new Area Navigation (RNAV) Global... Federal Register a notice of proposed rulemaking to establish controlled airspace at Kalaupapa, HI (75...

  10. 76 FR 75449 - Establishment of Class E Airspace; Stuart, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-02

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Stuart, IA AGENCY... airspace for Stuart, IA, to accommodate new COPTER area navigation (RNAV) Standard Instrument Approach... Federal Register a notice of proposed rulemaking to establish Class E airspace for Stuart, IA,...

  11. 76 FR 75447 - Amendment of Class E Airspace; Centerville, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-02

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Centerville, IA... E airspace for Centerville, IA. Decommissioning of the Centerville non-directional beacon (NDB) and... E airspace for the Centerville, IA, area. (76 FR 53358) Docket No. FAA-2011-0830. Interested...

  12. 75 FR 23581 - Amendment of Class E Airspace; Emmetsburg, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Emmetsburg, IA AGENCY... airspace for Emmetsburg, IA, adding additional controlled airspace to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAPs) at Emmetsburg Municipal Airport, Emmetsburg, IA. The FAA...

  13. 77 FR 32896 - Modification of Class E Airspace; Billings, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-04

    ... Federal Aviation Administration 14 CFR Part 71 Modification of Class E Airspace; Billings, MT AGENCY... airspace at Billings Logan International Airport, Billings, MT. Controlled airspace is necessary to... procedures at Billings Logan International Airport. This action will also make a minor adjustment to...

  14. 76 FR 73501 - Amendment of Class E Airspace; Carroll, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Carroll, IA AGENCY: Federal... Carroll, IA. Decommissioning of the Carroll non-directional beacon (NDB) at Arthur N. Neu Airport, Carroll... rulemaking to amend Class E airspace for Carroll, IA, reconfiguring controlled airspace at Arthur N....

  15. 78 FR 59622 - Establishment of Class E Airspace; Akutan, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-27

    ... submitting written comments on the proposal to the FAA. No comments were received. Class E airspace... September 15, 2013, which is incorporated by reference in 14 CFR 71.1. The Class E airspace designations...--DESIGNATION OF CLASS A, B, C, D AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS 0...

  16. 77 FR 4458 - Amendment of Class E Airspace; Rockingham, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-30

    .... No comments were received. Class E airspace designations are published in paragraph 6005 of FAA Order... 14 CFR 71.1. The Class E airspace designations listed in this document will be published subsequently... safety and management of IFR operations within the National Airspace System. The airport formerly...

  17. 14 CFR 71.41 - Class B airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Class B airspace. 71.41 Section 71.41 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRSPACE DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS...

  18. 14 CFR 71.61 - Class D airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Class D airspace. 71.61 Section 71.61 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRSPACE DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS...

  19. 14 CFR 71.33 - Class A airspace areas.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Class A airspace areas. 71.33 Section 71.33 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRSPACE DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES; AND REPORTING POINTS...

  20. 14 CFR 71.9 - Overlapping airspace designations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Overlapping airspace designations. 71.9 Section 71.9 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRSPACE DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR TRAFFIC SERVICE ROUTES;...

  1. 76 FR 52230 - Establishment of Class E Airspace; Forest, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-22

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Forest, VA AGENCY... Airspace at Forest, VA, to accommodate the new Area Navigation (RNAV) Global Positioning System (GPS... published in the Federal Register a notice of proposed rulemaking to establish Class E airspace at...

  2. 75 FR 37291 - Amendment of Class E Airspace; Osceola, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-29

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Osceola, AR AGENCY: Federal... Osceola, AR. Decommissioning of the Osceola non-directional beacon (NDB) at Osceola Municipal Airport has... rulemaking to amend Class E airspace for Osceola, AR, reconfiguring controlled airspace at Osceola...

  3. 76 FR 73505 - Establishment of Class E Airspace; Nashville, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-29

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Nashville, AR... Class E airspace for Nashville, AR, to accommodate new Area Navigation (RNAV) Standard Instrument... Federal Register a notice of proposed rulemaking to amend Class E airspace for Nashville, AR,...

  4. 78 FR 67297 - Establishment of Class E Airspace; Curtis, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-12

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Curtis, NE AGENCY... airspace at Curtis, NE. Controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Curtis Municipal Airport. The FAA is taking this action to enhance...

  5. 77 FR 29866 - Amendment of Class E Airspace; Springhill, LA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-21

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Springhill, LA AGENCY... airspace for Springhill, LA. Decommissioning of the Springhill non-directional beacon (NDB) at Springhill... Federal Register a notice of proposed rulemaking to amend Class E airspace for Springhill,...

  6. 75 FR 17891 - Amendment of Class D Airspace; Goldsboro, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Goldsboro, NC AGENCY... action proposes to amend the Class D airspace at Seymour Johnson AFB, Goldsboro, NC, to reflect the part... amendment to Title 14, Code of Federal Regulations (14 CFR) part 71 to amend Class D airspace at...

  7. 78 FR 48291 - Amendment of Class D Airspace; Sparta, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Sparta, WI AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class D airspace at... Register a notice of proposed rulemaking (NPRM) to amend Class D airspace for Sparta/Fort McCoy Airport...

  8. 77 FR 38472 - Amendment of Class D Airspace; Pontiac, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Pontiac, MI AGENCY: Federal... Class D airspace within the Pontiac, MI, area by changing the name of the airport from ] Oakland-Pontiac... International Airport and adjusting the geographic coordinates within Class D airspace to coincide with the...

  9. 75 FR 39145 - Amendment of Class C Airspace; Flint, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... Federal Aviation Administration 14 CFR Part 71 RIN 2120-AA66 Amendment of Class C Airspace; Flint, MI... legal description of the Bishop International Airport, Flint, MI, Class C airspace area by amending the... affect the ARP location, which defines the Class C airspace area's center point. The Rule This...

  10. 77 FR 41259 - Modification of Class E Airspace; Plentywood, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-13

    ... airspace at Plentywood Sher-Wood Airport, Plentywood, MT. Controlled airspace is necessary to accommodate... procedures at Plentywood Sher-Wood Airport. This improves the safety and management of Instrument Flight... Plentywood Sher-Wood Airport, Plentywood, MT. Controlled airspace is necessary to accommodate IFR...

  11. 77 FR 34210 - Amendment of Class E Airspace; Orlando, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Orlando, FL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E Airspace at... E airspace at Orlando, FL (77 FR 16783). Interested parties were invited to participate in...

  12. 76 FR 35967 - Amendment of Class E Airspace; Bozeman, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-21

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Bozeman, MT AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action modifies Class E airspace at... geographic coordinates for the Class D and E airspace areas, and updates the airport name. DATES:...

  13. 75 FR 13667 - Amendment of Class E Airspace; Huntingburg, IN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ... Administration 14 CFR Part 71 Amendment of Class E Airspace; Huntingburg, IN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at Huntingburg, IN... rulemaking to amend Class E airspace for Huntingburg Airport, Huntingburg, IN (74 FR 66592) Docket No....

  14. 77 FR 66067 - Amendment of Class E Airspace; Boone, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-01

    ... Administration 14 CFR Part 71 Amendment of Class E Airspace; Boone, IA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at Boone, IA... proposed rulemaking (NPRM) to amend Class E airspace for the Boone, IA, area, creating...

  15. 75 FR 12162 - Class E Airspace; Manila, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... Federal Aviation Administration 14 CFR Part 71 Class E Airspace; Manila, AR AGENCY: Federal Aviation... Class E airspace at Manila, AR. Decommissioning of the Manila non-directional beacon (NDB) at Manila... amending Class E airspace extending upward from 700 feet above the surface for standard instrument...

  16. 76 FR 53049 - Amendment of Class E Airspace; Shelby, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-25

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Shelby, MT AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action modifies Class E airspace at... received. Class E airspace designations are published in paragraph 6005 of FAA Order 7400.9U dated...

  17. 78 FR 41289 - Amendment of Class E Airspace; Ogallala, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Ogallala, NE AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Ogallala, NE.,...

  18. 78 FR 41290 - Establishment of Class E Airspace; Sanibel, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Sanibel, FL... June 10, 2013, the FAA published a final rule, in the Federal Register establishing Class E airspace at.... This action makes the corrections and is rewritten for clarity. The Class E airspace designations...

  19. 76 FR 47061 - Amendment of Class E Airspace; Lakeland, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-04

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Lakeland, FL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... proposed rulemaking (NPRM) to amend Class E airspace at Lakeland Linder Regional Airport, Lakeland, FL...

  20. 75 FR 59934 - Amendment to Class E Airspace; Smithfield, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-29

    ... Federal Aviation Administration 14 CFR Part 71 Amendment to Class E Airspace; Smithfield, NC AGENCY... amends Class E airspace at Johnston County Airport, Smithfield, NC, by correcting an omission of the... amendment of the Class E airspace published in the Federal Register on July 27, 2010 (75 FR 43817)....

  1. 78 FR 25384 - Establishment of Class E Airspace; Immokalee, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Immokalee, FL... Class E Airspace at Immokalee, FL, to accommodate the Area Navigation (RNAV) Global Positioning System... establish Class E airspace at Immokalee, FL (78 FR 6262) Docket No. FAA-2012-1051. Interested parties...

  2. 75 FR 12166 - Class E Airspace; Beatrice, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... Federal Aviation Administration 14 CFR Part 71 Class E Airspace; Beatrice, NE AGENCY: Federal Aviation... Class E airspace at Beatrice, NE. Decommissioning of the Shaw non-directional beacon (NDB) at Beatrice... amending Class E airspace extending upward from 700 feet above the surface for standard instrument...

  3. 77 FR 46284 - Amendment of Class E Airspace; Lemmon, SD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-03

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Lemmon, SD AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... proposed rulemaking (NPRM) to amend Class E airspace for the Lemmon, SD, area, creating...

  4. 76 FR 9219 - Amendment of Class E Airspace; Muncie, IN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-17

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Muncie, IN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... Federal Register a notice of proposed rulemaking to amend Class E airspace for Muncie, IN,...

  5. 78 FR 18800 - Amendment of Class E Airspace; Decorah, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-28

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Decorah, IA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Decorah, IA,...

  6. 77 FR 45240 - Establishment of Class E Airspace; Arcadia, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Arcadia, FL... Class E Airspace at Arcadia, FL, to accommodate the new Area Navigation (RNAV) Global Positioning System... establish Class E airspace at Oneonta, AL (77 FR 33685) Docket No. FAA-2012-0365. Interested parties...

  7. 78 FR 48295 - Amendment of Class E Airspace; Gruver, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Gruver, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Gruver, TX,...

  8. 78 FR 48297 - Amendment of Class E Airspace; Bedford, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Bedford, PA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E Airspace at... proposed rulemaking (NPRM) to amend Class E airspace at Bedford County Airport, Bedford, PA. (78 FR...

  9. 76 FR 28887 - Revocation of Class E Airspace; Ozark, MO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-19

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Ozark, MO AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action removes Class E airspace at... Code of Federal Regulations (14 CFR) Part 71 by removing Class E airspace in the Ozark, MO,...

  10. 78 FR 45849 - Amendment of Class E Airspace; Gustavus, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-30

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Gustavus, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... the proposal to the FAA. No comments were received. Class E airspace designations are published...

  11. 78 FR 18799 - Amendment of Class E Airspace; Superior, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-28

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Superior, WI AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... proposed rulemaking (NPRM) to amend Class E airspace for the Superior, WI, area, creating...

  12. 75 FR 72939 - Modification of Class E Airspace; Portland, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-29

    ... Federal Aviation Administration 14 CFR Part 71 Modification of Class E Airspace; Portland, OR AGENCY... Class E airspace at Portland, OR, to accommodate aircraft using the Localizer/Distance Measuring... proposed in the NPRM. Class E airspace designations are published in paragraph 6005 of FAA Order...

  13. 77 FR 55690 - Amendment of Class E Airspace; Dillon, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Dillon, MT AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace at Dillon...

  14. 77 FR 56761 - Amendment of Class E Airspace; Kerrville, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-14

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Kerrville, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Class E airspace for the Kerrville, TX, area, creating additional controlled airspace at...

  15. 75 FR 41075 - Amendment of Class E Airspace; Bozeman, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-15

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Bozeman, MT AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action will amend Class E airspace at... proposed rulemaking to amend Class E airspace at Bozeman, MT (75 FR 20321). Interested parties were...

  16. 76 FR 39259 - Establishment of Class E Airspace; Brunswick, ME

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-06

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Brunswick, ME AGENCY... establishes Class E airspace at Brunswick Executive Airport, Brunswick, ME. DATES: The effective date is moved...), establishes Class E airspace at Brunswick Executive Airport, Brunswick, ME. This action will move up...

  17. 75 FR 12165 - Class E Airspace; Batesville, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Class E Airspace; Batesville, AR AGENCY: Federal... proposes to amend Class E airspace at Batesville, AR. Decommissioning of the Independence County non... Regulations (14 CFR), part 71 by amending Class E airspace extending upward from 700 feet above the...

  18. 77 FR 28247 - Amendment of Class E Airspace; Decatur, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Decatur, IL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... proposed rulemaking (NPRM) to amend Class E airspace for the Decatur, IL, area, creating...

  19. 78 FR 22414 - Amendment of Class E Airspace; Reno, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Reno, NV AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... were received. Class E airspace designations are published in paragraph 6003 of FAA Order 7400.9W...

  20. 76 FR 69608 - Modification of Class E Airspace; Blythe, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-09

    ... Modification of Class E Airspace; Blythe, CA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action modifies Class E airspace at Blythe, CA, to accommodate aircraft using Area... the controlled airspace needed to be adjusted; this action makes that adjustment. Class E...

  1. 78 FR 14652 - Amendment of Class E Airspace; Gaylord, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Gaylord, MI AGENCY: Federal... Gaylord, MI. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV... proposed rulemaking (NPRM) to amend Class E airspace for the Gaylord, MI, area, creating...

  2. 77 FR 5170 - Amendment of Class D Airspace; Jackson, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... County Airport-Reynolds Field, MI (Lat. 42 15'38'' N., long. 84 27'38'' W.) That airspace extending... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Jackson, MI AGENCY: Federal... Class D airspace within the Jackson, MI, area by changing the name of the airport from Jackson...

  3. 77 FR 5169 - Amendment of Class D Airspace; Saginaw, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Saginaw, MI AGENCY: Federal... Class D airspace within the Saginaw, MI, area by changing the name of the airport from Tri-City... airspace at MBS International Airport, Saginaw, MI. List of Subjects in 14 CFR Part 71...

  4. The Effectiveness of a Route Crossing Tool in a Simulated New York Airspace

    NASA Technical Reports Server (NTRS)

    Parke, Bonny; Chevalley, Eric; Bienert, Nancy; Lee, Paul; Gonter, Kari; Omar, Faisal; Kraut, Joshua; Yoo, Hyo-Sang; Borade, Abhay; Gabriel, Conrad; Rein-Weston, Daphne; Palmer, Everett

    2015-01-01

    Congested airspace is the cause of many delays in the terminal area and these delays can have a ripple effect on the rest of a nation's airspace. The New York terminal area is an example of where this happens in the U. S. An important goal, therefore, is to increase the efficiency of operations in congested terminal airspace where possible. Modeling studies of arrival and departure flows have shown that sharing of arrival and departure airspace increases efficiency in terminal operations. One source of inefficiency in terminal operations is that departure aircraft are frequently held level under arrival flows when it would be more efficient to climb the departure aircraft earlier. A Route Crossing Tool was developed to help controllers climb Newark (EWR) departures to the south earlier by temporarily sharing airspace with arrivals coming into LaGuardia (LGA) from the south. Instead of flying under the arrivals, a departure to the south could climb earlier by flying through the arrival airspace if there was a suitable gap between arrivals. A Human-in-the-Loop (HITL) simulation was conducted in this environment which compared three tool conditions: Baseline (no tool), a Single Route Crossing tool in which one route through the arrival flow was evaluated for crossing, and a Multi-Route Crossing tool in which five parallel routes were evaluated. In all conditions, the departures could be held level under the arrival flow. The results showed that controllers climbed a higher proportion of departures in the Multi-Route tool condition than in the other two conditions, with a higher proportion of departures climbed in smaller gaps and in front of trailing arrivals. The controllers indicated that the Multi-Route and Single Route tools helped them estimate distances more accurately and rated safety, workload, and coordination in the simulation as acceptable.

  5. The Lassen Astrobiology Intern Program - Concept, Implementation and Evaluation

    NASA Astrophysics Data System (ADS)

    Des Marais, D. J.; Dueck, S. L.; Davis, H. B.; Parenteau, M. N.; Kubo, M. D.

    2014-12-01

    The program goal was to provide a hands-on astrobiology learning experience to high school students by introducing astrobiology and providing opportunities to conduct field and lab research with NASA scientists. The program sought to increase interest in interdisciplinary science, technology, engineering, math and related careers. Lassen Volcanic National Park (LVNP), Red Bluff High School and the Ames Team of the NASA Astrobiology Institute led the program. LVNP was selected because it shares aspects of volcanism with Mars and it hosts thermal springs with microbial mat communities. Students documented volcanic deposits, springs and microbial mats. They analyzed waters and sampled rocks, water and microorganisms. They cultured microorganisms and studied chemical reactions between rocks and simulated spring waters. Each student prepared a report to present data and discuss relationships between volcanic rocks and gases, spring waters and microbial mats. At a "graduation" event the students presented their findings to the Red Bluff community. They visited Ames Research Center to tour the facilities and learn about science and technology careers. To evaluate program impact, surveys were given to students after lectures, labs, fieldwork and discussions with Ames scientists. Students' work was scored using rubrics (labs, progress reports, final report, presentation). Students took pre/post tests on core astrobiology concepts. Parents, teachers, rangers, Ames staff and students completed end-of-year surveys on program impact. Several outcomes were documented. Students had a unique and highly valued learning experience with NASA scientists. They understood what scientists do through authentic scientific work, and what scientists are like as individuals. Students became knowledgeable about astrobiology and how it can be pursued in the lab and in the field. The students' interest increased markedly in astrobiology, interdisciplinary studies and science generally.

  6. 77 FR 40492 - Revocation of Class D Airspace; Andalusia, AL; and Amendment of Class E Airspace; Fort Rucker, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class D Airspace; Andalusia, AL; and Amendment of Class E Airspace; Fort Rucker, AL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action removes Class D Airspace at Andalusia, AL, as the Air Traffic...

  7. 77 FR 65255 - Establishment of Class E Airspace; Reidsville, GA, and Amendment of Class E Airspace; Vidalia, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-26

    ... rule. SUMMARY: This action establishes Class E Airspace at Reidsville, GA. Separation of existing Class..., Reidsville, GA, to accommodate the separation of existing Class E airspace surrounding Vidalia Regional... Municipal Airport, Vidalia, GA, to provide the controlled airspace required to accommodate the separation...

  8. 75 FR 61660 - Proposed Modification of Class D and E Airspace, and Revocation of Class E Airspace; Flagstaff, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... Airspace Docket No. 10-AWP-5) and be submitted in triplicate to the Docket Management System (see ADDRESSES... reference in 14 CFR Part 71.1. The Class D and E airspace designation listed in this document will be... Federal Aviation Administration 14 CFR Part 71 Docket No. FAA-2010-0784; Airspace Docket No....

  9. 78 FR 52424 - Amendment of Class E Airspace; Dayton, TN, Establishment of Class E Airspace; Cleveland, TN, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-23

    ..., Establishment of Class E Airspace; Cleveland, TN, and Revocation of Class E Airspace; Bradley Memorial Hospital... Bradley Memorial Hospital is added to the Cleveland, TN, airspace description and removed from both the Dayton, TN, regulatory text as well as its listing as Bradley Memorial Hospital, Cleveland, TN,...

  10. Evaluation of the First-Year Communication Skills and Instructional Concepts Programs.

    ERIC Educational Resources Information Center

    Scott, Roger O.

    To aid in evaluating the First Year Communication Skills Program (FYCSP) and the Instructional Concepts Program (ICP) several tests were administered to two classes of kindergarten children. The objectives of the ICP were based on concepts that children would be expected to know when they entered the primary grades. The Instructional Concepts Test…

  11. Evaluation and Comparison of Space Solar Power Concepts

    NASA Astrophysics Data System (ADS)

    Feingold, Harvey

    2002-01-01

    The SSP Exploratory Research and Technology (SERT) program undertaken by NASA in the 1999- 2000 timeframe was the third in a recent series of NASA sponsored studies of Space Solar Power (SSP) that began with the 1995 SSP "Fresh Look" Study, and was followed by the SSP Concept Definition Study in 1998. In all three studies, a major focus has been on identifying system concepts, architectures and technologies that may ultimately produce a practical, economically viable source of electrical power to help satisfy the world's growing energy needs. As part of the SERT program, members of the study team developed several new and innovative SSP concepts that sprung from a desire to address the problem areas of previous system concepts with new technology and system solutions. In the previous SSP studies it has been shown that systems analyses and sensitivity studies are key to understanding the merits of different system concepts and technologies, particularly with respect to their impact on the mass and cost of space hardware and their ultimate economic impact on the cost of SSP-produced electricity. Enabled by analytical models and tools developed over the series of SSP studies, seven different system concepts as well as different technology choices within these concepts were quantitatively compared with one another on the basis of the mass and cost metrics suggested above. Accompanying sensitivity studies have permitted examination of how variations in the projected capabilities of different technologies could affect conclusions drawn from these analyses. This paper summarizes the results of these analytical efforts and from those results, identifies the most promising SSP concepts, including their key technologies and their comparative advantages and disadvantages.

  12. Evaluation and comparison of space solar power concepts

    NASA Astrophysics Data System (ADS)

    Feingold, Harvey; Carrington, Connie

    2003-08-01

    The SSP Exploratory Research and Technology (SERT) program undertaken by NASA in the 1999-2000 timeframe was the third in a recent series of NASA sponsored studies of Space Solar Power (SSP) that began with the 1995 SSP "Fresh Look" Study, and was followed by the SSP Concept Definition Study in 1998. In all three studies, a major focus has been on identifying system concepts, architectures and technologies that may ultimately produce a practical, economically viable source of electrical power to help satisfy the world's growing energy needs. As part of the SERT program, members of the study team developed several new and innovative SSP concepts that sprung from a desire to address the problem areas of previous system concepts with new technology and system solutions. In the previous SSP studies it has been shown that systems analyses and sensitivity studies are key to understanding the merits of different system concepts and technologies, particularly with respect to their impact on the mass and cost of space hardware and their ultimate economic impact on the cost of SSP-produced electricity. Enabled by analytical models and tools developed over the series of SSP studies, seven different system concepts as well as different technology choices within these concepts were quantitatively compared with one another on the basis of the mass and cost metrics suggested above. Accompanying sensitivity studies have permitted examination of how variations in the projected capabilities of different technologies could affect conclusions drawn from these analyses. This paper summarizes the results of these analytical efforts and from those results, identifies the most promising SSP concepts, including their key technologies and their comparative advantages and disadvantages.

  13. 75 FR 34624 - Revocation of Class D and E Airspace; Big Delta, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-18

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Revocation of Class D and E Airspace; Big Delta, AK... Class D and E airspace at Big Delta, AK, to eliminate duplicated controlled airspace serving Allen Army... airspace at Big Delta, AK (75 FR 17322). Controlled airspace serving Allen Army Airfield was revised...

  14. 76 FR 22011 - Amendment of Class E Airspace; Carizzo Springs, Glass Ranch Airport, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Carizzo Springs, Glass Ranch... amends Class E airspace for the Carizzo Springs, Glass Ranch Airport, TX, airspace area, to accommodate... rulemaking to amend Class E airspace for the Carizzo Springs, Glass Ranch Airport, TX, airspace...

  15. Concept Mapping to Evaluate an Undergraduate Pharmacy Curriculum

    PubMed Central

    Noble, Christy; O'Brien, Mia; Coombes, Ian; Shaw, P. Nicholas; Nissen, Lisa

    2011-01-01

    Objectives To explore a pharmacy school curriculum for opportunities for student engagement and to determine how these might shape student identity as pharmacists. Methods The learning aims and objectives and methods of assessment from the curriculum of a bachelor of pharmacy (BPharm) program were collected and a concept map was generated. The concept map was interpreted using Barnett and Coates' curricular domains of knowing, acting and being. Results The key concepts within the intended curriculum that were identified from the concept map were drugs, pharmacy, understanding, practice, and skills. Concepts such as patient and consumer, which would indicate a patient-centered approach to the curriculum, were limited. The main form of assessment used in the curriculum was multiple-choice and short-answer examinations. Conclusion There was an emphasis in the curriculum on student acquisition of knowledge and this was reinforced by the use of theoretical examinations. The content of the curriculum was drug-centered rather than patient-centered and the emergence of students' identity as pharmacists may be fragmented as a result. PMID:21655409

  16. Evaluation of Metal-Fueled Surface Reactor Concepts

    SciTech Connect

    Poston, David I.; Marcille, Thomas F.; Kapernick, Richard J.; Hiatt, Matthew T.; Amiri, Benjamin W.

    2007-01-30

    Surface fission power systems for use on the Moon and Mars may provide the first use of near-term reactor technology in space. Most near-term surface reactor concepts specify reactor temperatures <1000 K to allow the use of established material and power conversion technology and minimize the impact of the in-situ environment. Metal alloy fuels (e.g. U-10Zr and U-10Mo) have not traditionally been considered for space reactors because of high-temperature requirements, but they might be an attractive option for these lower temperature surface power missions. In addition to temperature limitations, metal fuels are also known to swell significantly at rather low fuel burnups ({approx}1 a/o), but near-term surface missions can mitigate this concern as well, because power and lifetime requirements generally keep fuel burnups <1 a/o. If temperature and swelling issues are not a concern, then a surface reactor concept may be able to benefit from the high uranium density and relative ease of manufacture of metal fuels. This paper investigates two reactor concepts that utilize metal fuels. It is found that these concepts compare very well to concepts that utilize other fuels (UN, UO2, UZrH) on a mass basis, while also providing the potential to simplify material safeguards issues.

  17. Concepts of Integration for UAS Operations in the NAS

    NASA Technical Reports Server (NTRS)

    Consiglio, Maria C.; Chamberlain, James P.; Munoz, Cesar A.; Hoffler, Keith D.

    2012-01-01

    One of the major challenges facing the integration of Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) is the lack of an onboard pilot that can comply with the legal requirement identified in the US Code of Federal Regulations (CFR) that pilots see and avoid other aircraft. UAS will be expected to demonstrate the means to perform the function of see and avoid while preserving the safety level of the airspace and the efficiency of the air traffic system. This paper introduces a Sense and Avoid (SAA) concept for integration of UAS into the NAS that is currently being developed by the National Aeronautics and Space Administration (NASA) and identifies areas that require additional experimental evaluation to further inform various elements of the concept. The concept design rests on interoperability principles that take into account both the Air Traffic Control (ATC) environment as well as existing systems such as the Traffic Alert and Collision Avoidance System (TCAS). Specifically, the concept addresses the determination of well clear values that are large enough to avoid issuance of TCAS corrective Resolution Advisories, undue concern by pilots of proximate aircraft and issuance of controller traffic alerts. The concept also addresses appropriate declaration times for projected losses of well clear conditions and maneuvers to regain well clear separation.

  18. 78 FR 72006 - Establishment of Class D Airspace and Class E Airspace; Laguna AAF, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-02

    ... Ground), Yuma, AZ. The establishment of an air traffic control tower has made this action necessary for... control tower has made this action necessary and provides the required controlled airspace for the...

  19. Concepts and techniques for ultrasonic evaluation of material mechanical properties

    NASA Technical Reports Server (NTRS)

    Vary, A.

    1980-01-01

    Ultrasonic methods that can be used for material strength are reviewed. Emergency technology involving advanced ultrasonic techniques and associated measurements is described. It is shown that ultrasonic NDE is particularly useful in this area because it involves mechanical elastic waves that are strongly modulated by morphological factors that govern mechanical strength and also dynamic failure modes. These aspects of ultrasonic NDE are described in conjunction with advanced approaches and theoretical concepts for signal acquisition and analysis for materials characterization. It is emphasized that the technology is in its infancy and that much effort is still required before the techniques and concepts can be transferred from laboratory to field conditions.

  20. Developing and Evaluating Animations for Teaching Quantum Mechanics Concepts

    ERIC Educational Resources Information Center

    Kohnle, Antje; Douglass, Margaret; Edwards, Tom J.; Gillies, Alastair D.; Hooley, Christopher A.; Sinclair, Bruce D.

    2010-01-01

    In this paper, we describe animations and animated visualizations for introductory and intermediate-level quantum mechanics instruction developed at the University of St Andrews. The animations aim to help students build mental representations of quantum mechanics concepts. They focus on known areas of student difficulty and misconceptions by…

  1. Systems evaluation of low density air transportation concepts

    NASA Technical Reports Server (NTRS)

    Bruce, R. W.; Webb, H. M.

    1972-01-01

    Methods were studied for improving air transportation to low-density population regions in the U.S. through the application of new aeronautical technology. The low-density air service concepts are developed for selected regions, and critical technologies that presently limit the effective application of low-density air transportation systems are identified.

  2. CFD evaluation of an advanced thrust vector control concept

    NASA Technical Reports Server (NTRS)

    Tiarn, Weihnurng; Cavalleri, Robert

    1990-01-01

    A potential concept that can offer an alternate method for thrust vector control of the Space Shuttle Solid Rocket Booster is the use of a cylindrical probe that is inserted (on demand) through the wall of the rocket nozzle. This Probe Thrust Vector Control (PTVC) concept is an alternate to that of a gimbaled nozzle or a Liquid Injection Thrust Vector (LITVC) system. The viability of the PTVC concept can be assessed either experimentally and/or with the use of CFD. A purely experimental assessment can be time consuming and expensive, whereas a CFD assessment can be very time- and cost-effective. Two key requirements of the proposed concept are PTVC vectoring performance and the active cooling requirements for the probe to maintain its thermal and structural integrity. An active thermal cooling method is the injection of coolant around the pheriphery of the probe. How much coolant is required and how this coolant distributes itself in the flow field is of major concern. The objective of the work reported here is the use of CFD to answer these question and in the design of test hardware to substantiate the results of the CFD predictions.

  3. Teaching the Concept of Precycling: A Campaign and Evaluation.

    ERIC Educational Resources Information Center

    Gillilan, Sheryl; Werner, Carol M.; Olson, Lynne; Adams, Dorothy

    1996-01-01

    Precycling, or purchasing wisely to reduce waste, is the EPA-preferred way to conserve resources and extend landfill life. A three-month campaign using radio, television, and in-store advertising was effective in teaching this concept in the greater Salt Lake City area. (Author/AIM)

  4. Development and benefit analysis of a sector design algorithm for terminal dynamic airspace configuration

    NASA Astrophysics Data System (ADS)

    Sciandra, Vincent

    The National Airspace System (NAS) is the vast network of systems enabling safe and efficient air travel in the United States. It consists of a set of static sectors, each controlled by one or more air traffic controllers. Air traffic control is tasked with ensuring that all flights can depart and arrive on time and in a safe and efficient matter. However, skyrocketing demand will only increase the stress on an already inefficient system, causing massive delays. The current, static configuration of the NAS cannot possibly handle the future demand on the system safely and efficiently, especially since it is projected to triple by 2025. To overcome these issues, the Next Generation of Air Transportation System (NextGen) is being enacted to increase the flexibility of the NAS. A major objective of NextGen is to implement Adaptable Dynamic Airspace Configuration (ADAC) which will dynamically allocate the sectors to best fit the traffic in the area. Dynamically allocating sectors will allow resources such as controllers to be better distributed to meet traffic demands. Currently, most DAC research has involved the en route airspace. This leaves the terminal airspace, which accounts for a large amount of the overall NAS complexity, in need of work. Using a combination of methods used in en route sectorization, this thesis has developed an algorithm for the dynamic allocation of sectors in the terminal airspace. This algorithm will be evaluated using metrics common in the evaluation of dynamic density, which is adapted for the unique challenges of the terminal airspace, and used to measure workload on air traffic controllers. These metrics give a better view of the controller workload than the number of aircraft alone. By comparing the test results with sectors currently used in the NAS using real traffic data, the algorithm xv generated sectors can be quantitatively evaluated for improvement of the current sectorizations. This will be accomplished by testing the

  5. Experimental Evaluation of an Integrated Datalink and Automation-Based Strategic Trajectory Concept

    NASA Technical Reports Server (NTRS)

    Mueller, Eric

    2007-01-01

    This paper presents research on the interoperability of trajectory-based automation concepts and technologies with modern Flight Management Systems and datalink communication available on many of today s commercial aircraft. A tight integration of trajectory-based ground automation systems with the aircraft Flight Management System through datalink will enable mid-term and far-term benefits from trajectory-based automation methods. A two-way datalink connection between the trajectory-based automation resident in the Center/TRACON Automation System and the Future Air Navigation System-1 integrated FMS/datalink in NASA Ames B747-400 Level D simulator has been established and extensive simulation of the use of datalink messages to generate strategic trajectories completed. A strategic trajectory is defined as an aircraft deviation needed to solve a conflict or honor a route request and then merge the aircraft back to its nominal preferred trajectory using a single continuous trajectory clearance. Engineers on the ground side of the datalink generated lateral and vertical trajectory clearances and transmitted them to the Flight Management System of the 747; the airborne automation then flew the new trajectory without human intervention, requiring the flight crew only to review and to accept the trajectory. This simulation established the protocols needed for a significant majority of the trajectory change types required to solve a traffic conflict or deviate around weather. This demonstration provides a basis for understanding the requirements for integration of trajectory-based automation with current Flight Management Systems and datalink to support future National Airspace System operations.

  6. Cooperative Implementation Planning, Management and Evaluation - Outline Concept

    DTIC Science & Technology

    2008-10-02

    and external to the Coalition should be considered to make up the evaluation team. Monitoring and evaluation of overall mission progress should be... monitoring and evaluation efforts ensuring that it is possible to assess progress and success with respect to the intervention. 11 Unclassified...change should be developed by the IIF. It will also be critical to prepare for monitoring and evaluation through the identification of outcome

  7. Analysis of Aircraft Clusters to Measure Sector-Independent Airspace Congestion

    NASA Technical Reports Server (NTRS)

    Bilimoria, Karl D.; Lee, Hilda Q.

    2005-01-01

    The Distributed Air/Ground Traffic Management (DAG-TM) concept of operations* permits appropriately equipped aircraft to conduct Free Maneuvering operations. These independent aircraft have the freedom to optimize their trajectories in real time according to user preferences; however, they also take on the responsibility to separate themselves from other aircraft while conforming to any local Traffic Flow Management (TFM) constraints imposed by the air traffic service provider (ATSP). Examples of local-TFM constraints include temporal constraints such as a required time of arrival (RTA), as well as spatial constraints such as regions of convective weather, special use airspace, and congested airspace. Under current operations, congested airspace typically refers to a sector(s) that cannot accept additional aircraft due to controller workload limitations; hence Dynamic Density (a metric that is indicative of controller workload) can be used to quantify airspace congestion. However, for Free Maneuvering operations under DAG-TM, an additional metric is needed to quantify the airspace congestion problem from the perspective of independent aircraft. Such a metric would enable the ATSP to prevent independent aircraft from entering any local areas of congestion in which the flight deck based systems and procedures may not be able to ensure separation. This new metric, called Gaggle Density, offers the ATSP a mode of control to regulate normal operations and to ensure safety and stability during rare-normal or off-normal situations (e.g., system failures). It may be difficult to certify Free Maneuvering systems for unrestricted operations, but it may be easier to certify systems and procedures for specified levels of Gaggle Density that could be monitored by the ATSP, and maintained through relatively minor flow-rate (RTA type) restrictions. Since flight deck based separation assurance is airspace independent, the challenge is to measure congestion independent of sector

  8. Testing the Participatory Education Evaluation Concept in a National Context

    ERIC Educational Resources Information Center

    Pietilainen, Ville

    2012-01-01

    The article focuses on the realisation of participatory evaluation (PE) in national educational evaluation activity. The realisation of PE is examined by adapting the Daigneault and Jacob model (2009; originally Cousins & Whitmore, 1998) to five national-level educational evaluations carried out in Finland. According to the chosen frame of…

  9. High altitude aerodynamic platform concept evaluation and prototype engine testing

    NASA Technical Reports Server (NTRS)

    Akkerman, J. W.

    1984-01-01

    A design concept has been developed for maintaining a 150-pound payload at 60,000 feet altitude for about 50 hours. A 600-pound liftoff weight aerodynamic vehicle is used which operates at sufficient speeds to withstand prevailing winds. It is powered by a turbocharged four-stoke cycle gasoline fueled engine. Endurance time of 100 hours or more appears to be feasible with hydrogen fuel and a lighter payload. A prototype engine has been tested to 40,000 feet simulated altitude. Mismatch of the engine and the turbocharger system flow and problems with fuel/air mixture ratio control characteristics prohibited operation beyond 40,000 feet. But there seems to be no reason why the concept cannot be developed to function as analytically predicted.

  10. Information transfer in the National Airspace System

    NASA Technical Reports Server (NTRS)

    Lee, Alfred T.

    1988-01-01

    An informal overview is given of the work in progress and the planned work in the area of information transfer that specifically addresses human factors issues in National Airspace System (NAS). The issues of how weather information will be displayed on the flight deck, the development of appropriate decision making technology, and digital datalink transmission are also briefly discussed.

  11. Safely Enabling Low-Altitude Airspace Operations

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal

    2015-01-01

    Near-term Goal: Enable initial low-altitude airspace and UAS operations with demonstrated safety as early as possible, within 5 years. Long-term Goal: Accommodate increased UAS operations with highest safety, efficiency, and capacity as much autonomously as possible (10-15 years).

  12. DeepStar evaluation of subsea trees and manifold concepts

    SciTech Connect

    Kirkland, K.G.; Richardson, E.M.; Hey, C.

    1996-12-31

    This paper reviews the results of a study performed for the DeepStar Project, CTR A802-2, Concept Study and Investigation of Key Areas of Interest for Subsea Systems in Deepwater. The report documents the results of a study of subsea manifold systems as applied to the deepwater Gulf of Mexico. Of particular interest is the development of a range of system level philosophies based on recent and ongoing experience from the operators and vendors.

  13. Test evaluation of a laminated wood wind turbine blade concept

    NASA Astrophysics Data System (ADS)

    Faddoul, J. R.

    1981-05-01

    A series of tests conducted on a root end section of a laminated wood wind turbine blade are reported. The blade to hub transition of the wood blade uses steel studs cast into the wood D spar with a filled epoxy. Both individual studs and a full scale, short length, root section were tested. Results indicate that the bonded stud concept is more than adequate for both the 30 year life fatigue loads and for the high wind or hurricane gust loads.

  14. Test evaluation of a laminated wood wind turbine blade concept

    NASA Technical Reports Server (NTRS)

    Faddoul, J. R.

    1981-01-01

    A series of tests conducted on a root end section of a laminated wood wind turbine blade are reported. The blade to hub transition of the wood blade uses steel studs cast into the wood D spar with a filled epoxy. Both individual studs and a full scale, short length, root section were tested. Results indicate that the bonded stud concept is more than adequate for both the 30 year life fatigue loads and for the high wind or hurricane gust loads.

  15. Evaluation of a Salutogenetic Concept for Inpatient Psychosomatic Treatment

    PubMed Central

    Loew, Thomas

    2013-01-01

    The increase of psychosomatic disorders due to cultural changes requires enhanced therapeutic models. This study investigated a salutogenetic treatment concept for inpatient psychosomatic treatment, based on data from more than 11000 patients of a psychosomatic clinic in Germany. The clinic aims at supporting patients' health improvement by fostering values such as humanity, community, and mindfulness. Most of patients found these values realized in the clinical environment. Self-assessment questionnaires addressing physical and mental health as well as symptom ratings were available for analysis of pre-post-treatment effects and long-term stability using one-year follow-up data, as well as for a comparison with other clinics. With respect to different diagnoses, symptoms improved in self-ratings with average effect sizes between 0.60 and 0.98. About 80% of positive changes could be sustained as determined in a 1-year follow-up survey. Patients with a lower concordance with the values of the clinic showed less health improvement. Compared to 14 other German psychosomatic clinics, the investigated treatment concept resulted in slightly higher decrease in symptoms (e.g., depression scale) and a higher self-rated mental and physical improvement in health. The data suggest that a successfully implemented salutogenetic clinical treatment concept not only has positive influence on treatment effects but also provides long-term stability. PMID:24159352

  16. Evaluation of Vortex Chamber Concepts for Liquid Rocket Engine Applications

    NASA Technical Reports Server (NTRS)

    Trinh, Huu Phuoc; Knuth, Williams; Michaels, Scott; Turner, James E. (Technical Monitor)

    2000-01-01

    Rocket-based combined-cycle engines (RBBC) being considered at NASA for future generation launch vehicles feature clusters of small rocket thrusters as part of the engine components. Depending on specific RBBC concepts, these thrusters may be operated at various operating conditions including power level and/or propellant mixture ratio variations. To pursue technology developments for future launch vehicles, NASA/Marshall Space Flight Center (MSFC) is examining vortex chamber concepts for the subject cycle engine application. Past studies indicated that the vortex chamber schemes potentially have a number of advantages over conventional chamber methods. Due to the nature of the vortex flow, relatively cooler propellant streams tend to flow along the chamber wall. Hence, the thruster chamber can be operated without the need of any cooling techniques. This vortex flow also creates strong turbulence, which promotes the propellant mixing process. Consequently, the subject chamber concepts not only offer the system simplicity but they also would enhance the combustion performance. The test results showed that the chamber performance was markedly high even at a low chamber length-to- diameter ratio (L/D). This incentive can be translated to a convenience in the thrust chamber packaging.

  17. GIS and RDBMS Used with Offline FAA Airspace Databases

    NASA Technical Reports Server (NTRS)

    Clark, J.; Simmons, J.; Scofield, E.; Talbott, B.

    1994-01-01

    A geographic information system (GIS) and relational database management system (RDBMS) were used in a Macintosh environment to access, manipulate, and display off-line FAA databases of airport and navigational aid locations, airways, and airspace boundaries. This proof-of-concept effort used data available from the Adaptation Controlled Environment System (ACES) and Digital Aeronautical Chart Supplement (DACS) databases to allow FAA cartographers and others to create computer-assisted charts and overlays as reference material for air traffic controllers. These products were created on an engineering model of the future GRASP (GRaphics Adaptation Support Position) workstation that will be used to make graphics and text products for the Advanced Automation System (AAS), which will upgrade and replace the current air traffic control system. Techniques developed during the prototyping effort have shown the viability of using databases to create graphical products without the need for an intervening data entry step.

  18. Automation for Accommodating Fuel-Efficient Descents in Constrained Airspace

    NASA Technical Reports Server (NTRS)

    Coopenbarger, Richard A.

    2010-01-01

    Continuous descents at low engine power are desired to reduce fuel consumption, emissions and noise during arrival operations. The challenge is to allow airplanes to fly these types of efficient descents without interruption during busy traffic conditions. During busy conditions today, airplanes are commonly forced to fly inefficient, step-down descents as airtraffic controllers work to ensure separation and maximize throughput. NASA in collaboration with government and industry partners is developing new automation to help controllers accommodate continuous descents in the presence of complex traffic and airspace constraints. This automation relies on accurate trajectory predictions to compute strategic maneuver advisories. The talk will describe the concept behind this new automation and provide an overview of the simulations and flight testing used to develop and refine its underlying technology.

  19. 77 FR 1429 - Proposed Amendment of Class E Airspace; Springfield, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-10

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Springfield, CO...: This action proposes to amend Class E airspace at Springfield Municipal Airport, Springfield, CO... Springfield Municipal Airport, Springfield, CO. Airspace reconfiguration is necessary due to...

  20. Evaluation Concepts and Practice in Selected Distance Education Institutions. ZIFF-Papiere 108.

    ERIC Educational Resources Information Center

    Rathore, Harish, Ed.; Schuemer, Rudolf, Ed.

    This document contains five papers examining evaluation concepts and practice in selected distance education (DE) institutions. "Preface" (Harish Rathore, Rudolf Schuemer) defines evaluation in DE and provides an overview of the evaluation philosophies, agendas, and methodologies discussed in the five papers. "Evaluation Practices at the Indira…

  1. MNE 5 Cooperative Implementation Planning, Management and Evaluation Concept Overview

    DTIC Science & Technology

    2009-03-19

    understanding, stakeholder analysis, monitoring and evaluation 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT UU 18. NUMBER OF PAGES 3 19a... Monitoring and evaluation of overall mission progress should be undertaken to learn lessons and improve policy and practice. • The interagency

  2. Aeroacoustic Evaluation of Flap and Landing Gear Noise Reduction Concepts

    NASA Technical Reports Server (NTRS)

    Khorrami, Mehdi R.; Humphreys, William M., Jr.; Lockard, David P.; Ravetta, Patricio A.

    2014-01-01

    Aeroacoustic measurements for a semi-span, 18% scale, high-fidelity Gulfstream aircraft model are presented. The model was used as a test bed to conduct detailed studies of flap and main landing gear noise sources and to determine the effectiveness of numerous noise mitigation concepts. Using a traversing microphone array in the flyover direction, an extensive set of acoustic data was obtained in the NASA Langley Research Center 14- by 22-Foot Subsonic Tunnel with the facility in the acoustically treated open-wall (jet) mode. Most of the information was acquired with the model in a landing configuration with the flap deflected 39 deg and the main landing gear alternately installed and removed. Data were obtained at Mach numbers of 0.16, 0.20, and 0.24 over directivity angles between 56 deg and 116 deg, with 90 deg representing the overhead direction. Measured acoustic spectra showed that several of the tested flap noise reduction concepts decrease the sound pressure levels by 2 - 4 dB over the entire frequency range at all directivity angles. Slightly lower levels of noise reduction from the main landing gear were obtained through the simultaneous application of various gear devices. Measured aerodynamic forces indicated that the tested gear/flap noise abatement technologies have a negligible impact on the aerodynamic performance of the aircraft model.

  3. Evaluation of ADAM/1 model for advanced coal extraction concepts

    NASA Technical Reports Server (NTRS)

    Deshpande, G. K.; Gangal, M. D.

    1982-01-01

    Several existing computer programs for estimating life cycle cost of mining systems were evaluated. A commercially available program, ADAM/1 was found to be satisfactory in relation to the needs of the advanced coal extraction project. Two test cases were run to confirm the ability of the program to handle nonconventional mining equipment and procedures. The results were satisfactory. The model, therefore, is recommended to the project team for evaluation of their conceptual designs.

  4. Training Effectiveness Assessment. Volume II. Problems, Concepts, and Evaluation Alternatives.

    DTIC Science & Technology

    1976-12-01

    arize train i ng mana gers and poter t iai training evaluators wit h the general requ i rements and procedures for ma~ing suchassessments . EVALUATION...Performance Te stin A Practical Guide for Test Makers. January 1971 . Educationa Testing Service , Princeton , NJ. Harris , J . H., Campbell , R. C...1970. American Institutes for Research , P i tts bur gh , PA. pp. 48-66. Harris , C. (Ed.) Problems in Measuring Change. 1963. Univers ity of Wi

  5. Unmanned Aircraft Systems Traffic Management (UTM) Safely Enabling UAS Operations in Low-Altitude Airspace

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal H.

    2016-01-01

    Unmanned Aircraft System (UAS) Traffic Management (UTM) Enabling Civilian Low-Altitude Airspace and Unmanned Aircraft System Operations What is the problem? Many beneficial civilian applications of UAS have been proposed, from goods delivery and infrastructure surveillance, to search and rescue, and agricultural monitoring. Currently, there is no established infrastructure to enable and safely manage the widespread use of low-altitude airspace and UAS operations, regardless of the type of UAS. A UAS traffic management (UTM) system for low-altitude airspace may be needed, perhaps leveraging concepts from the system of roads, lanes, stop signs, rules and lights that govern vehicles on the ground today, whether the vehicles are driven by humans or are automated. What system technologies is NASA exploring? Building on its legacy of work in air traffic management for crewed aircraft, NASA is researching prototype technologies for a UAS Traffic Management (UTM) system that could develop airspace integration requirements for enabling safe, efficient low-altitude operations. While incorporating lessons learned from the today's well-established air traffic management system, which was a response that grew out of a mid-air collision over the Grand Canyon in the early days of commercial aviation, the UTM system would enable safe and efficient low-altitude airspace operations by providing services such as airspace design, corridors, dynamic geofencing, severe weather and wind avoidance, congestion management, terrain avoidance, route planning and re-routing, separation management, sequencing and spacing, and contingency management. One of the attributes of the UTM system is that it would not require human operators to monitor every vehicle continuously. The system could provide to human managers the data to make strategic decisions related to initiation, continuation, and termination of airspace operations. This approach would ensure that only authenticated UAS could operate

  6. Digital adaptive controllers for VTOL vehicles. Volume 1: Concept evaluation

    NASA Technical Reports Server (NTRS)

    Hartmann, G. L.; Stein, G.; Pratt, S. G.

    1979-01-01

    A digital self-adaptive flight control system was developed for flight test in the VTOL approach and landing technology (VALT) research aircraft (a modified CH-47 helicopter). The control laws accept commands from an automatic on-board guidance system. The primary objective of the control laws is to provide good command-following with a minimum cross-axis response. Three attitudes and vertical velocity are separately commanded. Adaptation of the control laws is based on information from rate and attitude gyros and a vertical velocity measurement. The final design resulted from a comparison of two different adaptive concepts--one based on explicit parameter estimates from a real-time maximum-likelihood estimation algorithm, the other based on an implicit model reference adaptive system. The two designs were compared on the basis of performance and complexity.

  7. Concept Mapping: An Approach for Evaluating a Public Alternative School Program

    ERIC Educational Resources Information Center

    Streeter, Calvin L.; Franklin, Cynthia; Kim, Johnny S.; Tripodi, Stephen J.

    2011-01-01

    This article describes how concept mapping techniques were applied to evaluate the development of a solution-focused, public alternative school program. Concept Systems software was used to create 15 cluster maps based on statements generated from students, teachers, and school staff. In addition, pattern matches were analyzed to examine the…

  8. Development and Evaluation of Computerized Problem-based Learning Cases Emphasizing Basic Sciences Concepts.

    ERIC Educational Resources Information Center

    Abate, Marie A.; Meyer-Stout, Paula J.; Stamatakis, Mary K.; Gannett, Peter M.; Dunsworth, Teresa S.; Nardi, Anne H.

    2000-01-01

    Describes development and evaluation of eight computerized problem-based learning (PBL) cases in medicinal chemistry and pharmaceutics concepts. Case versions either incorporated concept maps emphasizing key ideas or did not. Student performance on quizzes did not differ between the different case versions and was similar to that of students who…

  9. Evaluation of Eleventh Grade Turkish Pupils' Comprehension of General Chemistry Concepts

    ERIC Educational Resources Information Center

    Belge Can, Hatice; Boz, Yezdan

    2011-01-01

    The main purpose of this study is to evaluate eleventh grade Turkish pupils' comprehension of various general chemistry concepts which in turn enables to investigate chemistry concepts which are easier and harder for students to comprehend. Examining the effect of gender and last semester chemistry course grades on pupils' comprehension of general…

  10. Airspace Command and Control in the Contemporary Operating Environment

    DTIC Science & Technology

    2010-05-07

    article titled, “The Miracle of Operation Iraqi Freedom Airspace Management,” Wathen details the herculean effort airspace With multiple actors...the ability to predict airspace conflicts. 4 Colonel David Hume , an Air War College graduate, wrote a thesis on command and control and integration...of unmanned aircraft into the battlespace. Hume argues that the TAGS is not optimized to support the integration of unmanned aircraft operations

  11. Evaluation of Health in All Policies: concept, theory and application.

    PubMed

    Baum, Fran; Lawless, Angela; Delany, Toni; Macdougall, Colin; Williams, Carmel; Broderick, Danny; Wildgoose, Deborah; Harris, Elizabeth; Mcdermott, Dennis; Kickbusch, Ilona; Popay, Jennie; Marmot, Michael

    2014-06-01

    This article describes some of the crucial theoretical, methodological and practical issues that need to be considered when evaluating Health in All Policies (HiAP) initiatives. The approaches that have been applied to evaluate HiAP in South Australia are drawn upon as case studies, and early findings from this evaluative research are provided. The South Australian evaluation of HiAP is based on a close partnership between researchers and public servants. The article describes the South Australian HiAP research partnership and considers its benefits and drawbacks in terms of the impact on the scope of the research, the types of evidence that can be collected and the implications for knowledge transfer. This partnership evolved from the conduct of process evaluations and is continuing to develop through joint collaboration on an Australian National Health & Medical Research Council grant. The South Australian research is not seeking to establish causality through statistical tests of correlations, but instead by creating a 'burden of evidence' which supports logically coherent chains of relations. These chains emerge through contrasting and comparing findings from many relevant and extant forms of evidence. As such, program logic is being used to attribute policy change to eventual health outcomes. The article presents the preliminary program logic model and describes the early work of applying the program logic approach to HiAP. The article concludes with an assessment of factors that have accounted for HiAP being sustained in South Australia from 2008 to 2013.

  12. Projected Demand and Potential Impacts to the National Airspace System of Autonomous, Electric, On-Demand Small Aircraft

    NASA Technical Reports Server (NTRS)

    Smith, Jeremy C.; Viken, Jeffrey K.; Guerreiro, Nelson M.; Dollyhigh, Samuel M.; Fenbert, James W.; Hartman, Christopher L.; Kwa, Teck-Seng; Moore, Mark D.

    2012-01-01

    Electric propulsion and autonomy are technology frontiers that offer tremendous potential to achieve low operating costs for small-aircraft. Such technologies enable simple and safe to operate vehicles that could dramatically improve regional transportation accessibility and speed through point-to-point operations. This analysis develops an understanding of the potential traffic volume and National Airspace System (NAS) capacity for small on-demand aircraft operations. Future demand projections use the Transportation Systems Analysis Model (TSAM), a tool suite developed by NASA and the Transportation Laboratory of Virginia Polytechnic Institute. Demand projections from TSAM contain the mode of travel, number of trips and geographic distribution of trips. For this study, the mode of travel can be commercial aircraft, automobile and on-demand aircraft. NASA's Airspace Concept Evaluation System (ACES) is used to assess NAS impact. This simulation takes a schedule that includes all flights: commercial passenger and cargo; conventional General Aviation and on-demand small aircraft, and operates them in the simulated NAS. The results of this analysis projects very large trip numbers for an on-demand air transportation system competitive with automobiles in cost per passenger mile. The significance is this type of air transportation can enhance mobility for communities that currently lack access to commercial air transportation. Another significant finding is that the large numbers of operations can have an impact on the current NAS infrastructure used by commercial airlines and cargo operators, even if on-demand traffic does not use the 28 airports in the Continental U.S. designated as large hubs by the FAA. Some smaller airports will experience greater demand than their current capacity allows and will require upgrading. In addition, in future years as demand grows and vehicle performance improves other non-conventional facilities such as short runways incorporated into

  13. Technical Note: Changes to herd cutoff date in conception rate evaluations

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Service-sire conception rate (SCR) evaluations were implemented for the United States in August 2008. Only inseminations from the most recent 4 yr of breeding records are used for SCR evaluations, and all inseminations must have occurred > 70 d before the data submission deadline for an evaluation. ...

  14. Satellite Power System (SPS) concept development and evaluation program plan, July 1977 - August 1980

    NASA Technical Reports Server (NTRS)

    1978-01-01

    An overview of the program to evaluate the solar satellite power system concept is presented. Environmental, health, and safety factors are examined along with economic, international, and institutional issues.

  15. 76 FR 41397 - Establishment of Class E Airspace; Florence, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-14

    ... airspace at Florence, OR, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Florence Municipal Airport. This improves...

  16. 75 FR 12974 - Establishment of Class E Airspace; Hailey, ID

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-18

    ... E airspace at Hailey, ID, to accommodate aircraft using the Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Friedman Memorial Airport. This...

  17. 75 FR 40719 - Establishment of Class E Airspace; Kemmerer, WY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-14

    ... E airspace at Kemmerer, WY to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Kemmerer Municipal Airport....

  18. 76 FR 1999 - Establishment of Class E Airspace; Panguitch, UT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ... E airspace at Panguitch, UT, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures at Panguitch Municipal Airport. This...

  19. UTM Safely Enabling UAS Operations in Low-Altitude Airspace

    NASA Technical Reports Server (NTRS)

    Kopardekar, Parimal H.

    2016-01-01

    Conduct research, development and testing to identify airspace operations requirements to enable large-scale visual and beyond visual line of sight UAS operations in the low-altitude airspace. Use build-a-little-test-a-little strategy remote areas to urban areas Low density: No traffic management required but understanding of airspace constraints. Cooperative traffic management: Understanding of airspace constraints and other operations. Manned and unmanned traffic management: Scalable and heterogeneous operations. UTM construct consistent with FAAs risk-based strategy. UTM research platform is used for simulations and tests. UTM offers path towards scalability.

  20. Applying Portfolio Evaluation Concepts to Educational Program Screening.

    ERIC Educational Resources Information Center

    Ternent, William A.

    The portfolio approach to evaluation can be a useful method of screening and comparing educational programs in terms of their productivity and potential. In the field of investments, portfolio analysis consists of identifying the relative strengths of assets in terms of the dimensions of return and potential for growth. College programs can be…

  1. Evaluation of pressure sensing concepts: A technology assessment

    SciTech Connect

    Shepard, R.L.; Thacker, L.H.

    1993-09-01

    Advanced distributed control systems for electric power plants will require more accurate and reliable pressure gauges than those now installed. Future developments in power plant control systems are expected to use digital/optical networks rather than the analog/electric data transmission used in existing plants. Many pressure transmitters now installed use oil filling to separate process fluids from the gauge mechanism and are subject to insidious failures when the oil leaks. Testing and maintenance of pressure channels occupy a disproportionately large amount of effort to restore their accuracy and verify their operability. These and similar concerns have prompted an assessment of a broad spectrum of sensor technologies to aid in selecting the most likely candidates for adaptation to power plant applications. Ten representative conventional and thirty innovational pressure sensors are described and compared. Particular emphasis is focused on two categories: Silicon-integrated pressure sensors and fiber-optic sensors, and both of these categories are discussed in detail. Additional attractive concepts include variable reluctance gauges and resonant structure gauges that may not require oil buffering from the process fluid.

  2. Satellite Power System: Concept development and evaluation program. Volume 7: Space transportation

    NASA Technical Reports Server (NTRS)

    1981-01-01

    During the several phases of the satellite power system (SPS) concept definition study, various transportation system elements were synthesized and evaluated on the basis of their potential to satisfy overall SPS transportation requirements and their sensitivities, interfaces, and impact on the SPS. Additional analyses and investigations were conducted to further define transportation system concepts that will be needed for the developmental and operational phases of an SPS program. To accomplish these objectives, transportation systems such as the shuttle and its derivatives were identified; new heavy-lift launch vehicle (HLLV) concepts, cargo and personnel orbital transfer vehicles (COTV and POTV), and intra-orbit transfer vehicle (IOTV) concepts were evaluated; and, to a limited degree, the program implications of their operations and costs were assessed. The results of these analyses were integrated into other elements of the overall SPS concept definition studies.

  3. Evaluation of CONAP Concept for Advanced ABM Nosetips

    DTIC Science & Technology

    1976-11-01

    TIPO [ MODEL PESIRE PROPERTIES I Ii I I III III I I I to 100 1000 I1100 100.000 INE TIAL AI$ IA4CI CO FFICItNT P X 10 F? I Figure 2-29. Porous...34Rain/Ice Erosion Resistant Nosetip/iPet Shield Evaluation and Development, Vol. II Erosion Resistant GASJET Nosetip" DNA 3562F-2, 1 March 1975 9

  4. [Patient admission: hospitality in the hospital--concept and evaluation].

    PubMed

    Vandenbulcke, C

    1999-06-01

    Welcoming is an everyday act, performed all day long, in different places. But, when it comes to welcoming a patient, it is a matter of health care, for which we are the only responsible. Since this person arrives in a place where his (her) body and mind are going to be ill-treated (s)he will be all the more receptive to his (her) new environment. Faced with feelings of fear, anguish, stress, the patient and ourselves try to establish a relationship made of confidence and a feeling of safety, which are necessary to his (her) integration. This will be achieved by means of verbal and non-verbal communication, by reducing or even getting round the obstacles. By studying this moment, this meeting, with different evaluation tools, I have been able to sort out the strong and weak points of my Institution, in order to propose adequate means of improvements, (creation of a team dynamics on this subject, working out of a definition, evaluation grids and application). The staff will thus be able to readjust his care as well as possible, at the level of the information to be given, and above all the attitude to adopt, in order to improve the quality of welcoming, as, eventually, it is what the patient will keep in mind and what he will use for his evaluation.

  5. Virtual Airspace Modeling and Simulation (VAMS) Project First Technical Interchange Meeting

    NASA Technical Reports Server (NTRS)

    Beard, Robert; Kille, Robert; Kirsten, Richard; Rigterink, Paul; Sielski, Henry; Gratteau, Melinda F. (Editor)

    2002-01-01

    A three-day NASA Virtual Airspace and Modeling Project (VAMS) Technical Interchange Meeting (TIM) was held at the NASA Ames Research Center in Mountain View, CA. on May 21 through May 23,2002. The purpose of this meeting was to share initial concept information sponsored by the VAMS Project. An overall goal of the VAMS Project is to develop validated, blended, robust and transition-able air transportation system concepts over the next five years that will achieve NASA's long-term Enterprise Aviation Capacity goals. This document describes the presentations at the TIM, their related questions and answers, and presents the TIM recommendations.

  6. Aircrew displays and avionics for application in a future national airspace system

    NASA Technical Reports Server (NTRS)

    Salmirs, S.

    1979-01-01

    A concept for increased pilot involvement in a future National Airspace System was evolved during the FAA New Initiatives in Engineering and Development Users responsibilities and ways in which they might interact. The technical feasibility of the system is indicated by the sophisticated level of presently manufactured digital computers and display avionics, and the application of that technology under design by the major airframe manufacturers. Data collected during simulations and flights with the Terminal Configured Vehicle Program B-737 airplane are shown to have direct application to the new system concept. The adoption of the operational changes envisioned, offers some potentially significant advantages to the user.

  7. Evidence toward an expanded international civil aviation organization (ICAO) concept of a single unified global communication navigation surveillance air traffic management (CNS/ATM) system: A quantitative analysis of ADS-B technology within a CNS/ATM system

    NASA Astrophysics Data System (ADS)

    Gardner, Gregory S.

    This research dissertation summarizes research done on the topic of global air traffic control, to include technology, controlling world organizations and economic considerations. The International Civil Aviation Organization (ICAO) proposed communication, navigation, surveillance, air traffic management system (CNS/ATM) plan is the basis for the development of a single global CNS/ATM system concept as it is discussed within this study. Research will be evaluated on the efficacy of a single technology, Automatic Dependent Surveillance-Broadcast (ADS-B) within the scope of a single global CNS/ATM system concept. ADS-B has been used within the Federal Aviation Administration's (FAA) Capstone program for evaluation since the year 2000. The efficacy of ADS-B was measured solely by using National Transportation Safety Board (NTSB) data relating to accident and incident rates within the Alaskan airspace (AK) and that of the national airspace system (NAS).

  8. Tactical Conflict Detection in Terminal Airspace

    NASA Technical Reports Server (NTRS)

    Tang, Huabin; Robinson, John E.; Denery, Dallas G.

    2010-01-01

    Air traffic systems have long relied on automated short-term conflict prediction algorithms to warn controllers of impending conflicts (losses of separation). The complexity of terminal airspace has proven difficult for such systems as it often leads to excessive false alerts. Thus, the legacy system, called Conflict Alert, which provides short-term alerts in both en-route and terminal airspace currently, is often inhibited or degraded in areas where frequent false alerts occur, even though the alerts are provided only when an aircraft is in dangerous proximity of other aircraft. This research investigates how a minimal level of flight intent information may be used to improve short-term conflict detection in terminal airspace such that it can be used by the controller to maintain legal aircraft separation. The flight intent information includes a site-specific nominal arrival route and inferred altitude clearances in addition to the flight plan that includes the RNAV (Area Navigation) departure route. A new tactical conflict detection algorithm is proposed, which uses a single analytic trajectory, determined by the flight intent and the current state information of the aircraft, and includes a complex set of current, dynamic separation standards for terminal airspace to define losses of separation. The new algorithm is compared with an algorithm that imitates a known en-route algorithm and another that imitates Conflict Alert by analysis of false-alert rate and alert lead time with recent real-world data of arrival and departure operations and a large set of operational error cases from Dallas/Fort Worth TRACON (Terminal Radar Approach Control). The new algorithm yielded a false-alert rate of two per hour and an average alert lead time of 38 seconds.

  9. Evaluation of laminar flow control system concepts for subsonic commercial transport aircraft

    NASA Technical Reports Server (NTRS)

    1978-01-01

    A two-year study conducted to establish a basis for industry decisions on the application of laminar flow control (LFC) to future commercial transports was presented. Areas of investigation included: (1) mission definition and baseline selection; (2) concepts evaluations; and (3) LFC transport configuration selection and component design. The development and evaluation of competing design concepts was conducted in the areas of aerodynamics, structures and materials, and systems. The results of supporting wind tunnel and laboratory testing on a full-scale LFC wing panel, suction surface opening concepts and structural samples were included. A final LFC transport was configured in incorporating the results of concept evaluation studies and potential performance improvements were assessed. Remaining problems together with recommendations for future research are discussed.

  10. Experimental evaluation of combustor concepts for burning broad property fuels

    NASA Technical Reports Server (NTRS)

    Kasper, J. M.; Ekstedt, E. E.; Dodds, W. J.; Shayeson, M. W.

    1980-01-01

    A baseline CF6-50 combustor and three advanced combustor designs were evaluated to determine the effects of combustor design on operational characteristics using broad property fuels. Three fuels were used in each test: Jet A, a broad property 13% hydrogen fuel, and a 12% hydrogen fuel blend. Testing was performed in a sector rig at true cruise and simulated takeoff conditions for the CF6-50 engine cycle. The advanced combustors (all double annular, lean dome designs) generally exhibited lower metal temperatures, exhaust emissions, and carbon buildup than the baseline CF6-50 combustor. The sensitivities of emissions and metal temperatures to fuel hydrogen content were also generally lower for the advanced designs. The most promising advanced design used premixing tubes in the main stage. This design was chosen for additional testing in which fuel/air ratio, reference velocity, and fuel flow split were varied.

  11. Conception, synthesis, and biological evaluation of original discodermolide analogues.

    PubMed

    de Lemos, Elsa; Agouridas, Evangelos; Sorin, Geoffroy; Guerreiro, Antonio; Commerçon, Alain; Pancrazi, Ange; Betzer, Jean-François; Lannou, Marie-Isabelle; Ardisson, Janick

    2011-08-29

    Due to its intriguing biological activity profile and potential chemotherapeutic application discodermolide (DDM) proved to be an attractive target. Therefore, notable efforts have been carried out directed toward its total synthesis and toward the production and evaluation of synthetic analogues. Recently, we achieved the total synthesis of DDM. At the present, guided by the knowledge gained during our DDM total synthesis and by the requirement of keeping the bioactive "U" shape conformation, we report the convergent preparation of five original analogues. Three types of changes were realized through modification of the terminal (Z)-diene moiety, of the methyl group at the C14-position, and the lactone region. All analogues were active in the nanomolar range and two of them turned out to be equipotent to DDM.

  12. The use of concept mapping in measurement development and evaluation: Application and future directions.

    PubMed

    Rosas, Scott R; Ridings, John W

    2017-02-01

    The past decade has seen an increase of measurement development research in social and health sciences that featured the use of concept mapping as a core technique. The purpose, application, and utility of concept mapping have varied across this emerging literature. Despite the variety of uses and range of outputs, little has been done to critically review how researchers have approached the application of concept mapping in the measurement development and evaluation process. This article focuses on a review of the current state of practice regarding the use of concept mapping as methodological tool in this process. We systematically reviewed 23 scale or measure development and evaluation studies, and detail the application of concept mapping in the context of traditional measurement development and psychometric testing processes. Although several limitations surfaced, we found several strengths in the contemporary application of the method. We determined concept mapping provides (a) a solid method for establishing content validity, (b) facilitates researcher decision-making, (c) insight into target population perspectives that are integrated a priori, and (d) a foundation for analytical and interpretative choices. Based on these results, we outline how concept mapping can be situated in the measurement development and evaluation processes for new instrumentation.

  13. Thiokol/Wasatch installation evaluation of the redesigned field joint protection system (concepts 1 and 3)

    NASA Technical Reports Server (NTRS)

    Cook, M.

    1989-01-01

    The procedures, performance, and results obtained from the Thiokol Corporation/Wasatch Redesigned Field Joint Protection System (FJPS) Installation Evaluation are documented. The purpose of the evaluation was to demonstrate and develop the procedures required to install two different concepts (referred to as Concepts 1 and 3) of the redesigned FJPS. The processing capability of each configuration was then evaluated and compared. The FJPS is installed on redesigned solid rocket motors (RSRM) to protect the field joints from rain intrusion and to maintain the joint temperature sensor measurement between 85 and 122 F while the boosters are on the launch pad. The FJPS is being redesigned to reduce installation timelines at KSC and to simplify or eliminate installation processing problems related to the present design of an EPDM moisture seal/extruded cork combination. Several installation techniques were evaluated, and a preferred method of application was developed for each concept. The installations were performed with the test article in the vertical (flight) position. Comparative timelines between the two concepts were also developed. An additional evaluation of the Concept 3 configuration was performed with the test article in the horizontal position, to simulate an overhead installation on a technical evaluation motor (TEM).

  14. Ultrasound Evaluation of the Magnitude of Pneumothorax: A New Concept

    NASA Technical Reports Server (NTRS)

    Sargsyan, Ashot E.; Nicolaou, S.; Kirkpatrick, A. W.; Hamilton, D. R.; Campbell, M. R,; Billica, R. D.; Dawson, D. L.; Williams, D. R.; Dulchavsky, S. A.

    2000-01-01

    Pneumothorax is commonly seen in trauma patients; the diagnosis is usually confirmed by radiography. Use of ultrasound for this purpose, in environments such as space flight and remote terrestrial areas where radiographic capabilities are absent, is being investigated by NASA. In this study, the ability of ultrasound to assess the magnitude of pneumothorax in a porcine model was evaluated. Sonography was performed on anesthetized pigs (avg. wt. 50 kg) in both ground-based laboratory (n = 5) and micro gravity conditions (0 g) aboard the KC-135 aircraft during parabolic flight (n = 4). Aliquots of air (50-1 OOcc) were introduced into the chest through a catheter to simulate pneumothorax. Results were video-recorded and digitized for later interpretation by radiologists. Several distinct sonographic patterns of partial lung sliding were noted, including the combination of a sliding zone with a still zone, and a "segmented" sliding zone. These "partial lung sliding" patterns exclude massive pneumothorax manifested by a complete separation of the lung from the parietal pleura. In 0 g, the sonographic picture was more diverse; 1 g differences between posterior and anterior aspects were diminished. CONCLUSIONS: Modest pneumothorax can be inferred by the ultrasound sign of "partial lung sliding". This finding, which increases the negative predictive value of thoracic ultrasound, may be attributed to intermittent pleural contact, small air spaces, or alterations in pleural lubricant. Further studies of these phenomena are warranted.

  15. Crew and Display Concepts Evaluation for Synthetic / Enhanced Vision Systems

    NASA Technical Reports Server (NTRS)

    Bailey, Randall E.; Kramer, Lynda J.; Prinzel, Lawrence J., III

    2006-01-01

    NASA s Synthetic Vision Systems (SVS) project is developing technologies with practical applications that strive to eliminate low-visibility conditions as a causal factor to civil aircraft accidents and replicate the operational benefits of clear day flight operations, regardless of the actual outside visibility condition. Enhanced Vision System (EVS) technologies are analogous and complementary in many respects to SVS, with the principle difference being that EVS is an imaging sensor presentation, as opposed to a database-derived image. The use of EVS in civil aircraft is projected to increase rapidly as the Federal Aviation Administration recently changed the aircraft operating rules under Part 91, revising the flight visibility requirements for conducting operations to civil airports. Operators conducting straight-in instrument approach procedures may now operate below the published approach minimums when using an approved EVS that shows the required visual references on the pilot s Head-Up Display. An experiment was conducted to evaluate the complementary use of SVS and EVS technologies, specifically focusing on new techniques for integration and/or fusion of synthetic and enhanced vision technologies and crew resource management while operating under the newly adopted FAA rules which provide operating credit for EVS. Overall, the experimental data showed that significant improvements in SA without concomitant increases in workload and display clutter could be provided by the integration and/or fusion of synthetic and enhanced vision technologies for the pilot-flying and the pilot-not-flying.

  16. 75 FR 13669 - Amendment of Class E Airspace; Dumas, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ... Instrument Approach Procedures (SIAPs) at Moore County Airport, Dumas, TX, and updates the airport's... rulemaking to amend Class E airspace for Dumas, TX, reconfiguring controlled airspace at Moore County Airport... surface to accommodate SIAPs at Moore County Airport, Dumas, TX. This action also updates the...

  17. 77 FR 19928 - Amendment of Class E Airspace; Hugo, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Hugo, CO AGENCY: Federal... Hugo, CO. Decommissioning of the Hugo Tactical Air Navigation System (TACAN) has made this action... ] controlled airspace at Hugo, CO (76 FR 78576). Interested parties were invited to participate in...

  18. 78 FR 34556 - Establishment of Class E Airspace; Tobe, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Tobe, CO AGENCY: Federal... at the Tobe VHF Omni- Directional Radio Range/Distance Measuring Equipment (VOR/DME), Tobe, CO, to... proposed rulemaking (NPRM) to establish controlled airspace at Tobe, CO (78 FR 18264). Interested...

  19. 77 FR 19930 - Amendment of Class E Airspace; Tobe, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Tobe, CO AGENCY: Federal... Tobe, CO. Decommissioning of the Tobe Tactical Air Navigation System (TACAN) has made this action... a notice of proposed rulemaking to amend controlled airspace at Tobe, CO (77 FR 4708)....

  20. 77 FR 18102 - Amendment of Class E Airspace; Lamar, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-27

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Lamar, CO AGENCY: Federal... Lamar Municipal Airport, Lamar, CO. Decommissioning of the Lamar Tactical Air Navigation System (TACAN... Register a notice of proposed rulemaking to amend controlled airspace at Lamar, CO (76 FR...

  1. 77 FR 75836 - Establishment of Class E Airspace; Walsenburg, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-26

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Walsenburg, CO AGENCY... airspace at Spanish Peaks Airfield, Walsenburg, CO, to accommodate aircraft using new Area Navigation (RNAV... Airfield, Walsenburg, CO (77 FR 55776). Interested parties were invited to participate in this...

  2. 75 FR 18047 - Amendment of Class D Airspace; Hollywood, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-09

    ... Administration 14 CFR Part 71 Amendment of Class D Airspace; Hollywood, FL AGENCY: Federal Aviation... Airport, Hollywood, FL. DATES: Effective Date: 0901 UTC. May 10, 2010. The Director of the Federal... airspace description for North Perry Airport, Hollywood, FL, incorrectly referenced the Miami, FL, Class...

  3. 76 FR 53328 - Airspace Designations; Incorporation by Reference

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... FAA processed all proposed changes of the airspace listings in FAA Order 7400.9U in full text as... in full text as final rules in the Federal Register. This rule reflects the periodic integration of... changes of the airspace listings in FAA Order 7400.9V in full text as proposed rule documents in...

  4. 78 FR 52847 - Airspace Designations; Incorporation by Reference

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... FAA processed all proposed changes of the airspace listings in FAA Order 7400.9W in full text as... in full text as final rules in the Federal Register. This rule reflects the periodic integration of... changes of the airspace listings in FAA Order 7400.9X in full text as proposed rule documents in...

  5. 75 FR 20320 - Amendment of Class E Airspace; Smithfield, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-19

    ... needed for the Standard Instrument Approach Procedures (SIAPs) developed for Johnston County Airport... Smithfield, NC to provide controlled airspace required to support the SIAPs for Johnston County Airport. The... within the scope of that authority as it would amend Class E airspace at Johnston County...

  6. 75 FR 65581 - Establishment of Class E Airspace; Colebrook, NH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-26

    ... Proposed Rulemaking, Airspace Docket No. 10-ANE-105, as published in the Federal Register on July 19, 2010... (NPRM); withdrawal. SUMMARY: This action withdraws the NPRM published in the Federal Register on July 19.... The NPRM is being withdrawn as a portion of the proposed airspace already exists. A new...

  7. 75 FR 12163 - Class E Airspace; Mountain View, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... Federal Aviation Administration 14 CFR Part 71 Class E Airspace; Mountain View, AR AGENCY: Federal... proposes to amend Class E airspace at Mountain View, AR. Decommissioning of the Wilcox non-directional beacon (NDB) at Mountain View Wilcox Memorial Field Airport has made this action necessary for the...

  8. 76 FR 8281 - Amendment to Class B Airspace; Cleveland, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-14

    ... International Airport (CLE) and non-participating Visual Flight Rules (VFR) aircraft operating in the vicinity... boundaries of Areas F and G to coincide with visual landmarks to prevent inadvertent Class B airspace... benefits of using visual landmarks for defining airspace boundaries and does so when possible....

  9. 78 FR 25382 - Amendment of Class E Airspace; Griffin, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... Griffin, GA, as the Griffin Non-Directional Beacon (NDB) has been decommissioned and new Standard... authority as it amends controlled airspace at Griffin-Spalding County Airport, Griffin, GA. Environmental... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Griffin, GA AGENCY:...

  10. 77 FR 68067 - Establishment of Class E Airspace; Coaldale, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-15

    ... airspace at Coaldale VHF Omni- Directional Radio Range Tactical Air Navigational Aid (VORTAC), Coaldale, NV to facilitate vectoring of Instrument Flight Rules (IFR) aircraft under control of Oakland Air Route... request of the Oakland ARTCC to aid with the navigation of aircraft within the ARTCC's airspace area...

  11. 75 FR 6095 - Revocation of Class E Airspace; Hinesville, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Hinesville, GA AGENCY... November 25, 2009 (74 FR 61507), revokes Class E airspace at Liberty County Airport, Hinesville, GA....

  12. 77 FR 51464 - Amendment of Class E Airspace; Augusta, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-24

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Augusta, GA AGENCY: Federal... Augusta, GA. The Bushe Non-Directional Beacon (NDB) and the Burke County NDB have been decommissioned and... Field, Augusta, GA, and Burke County Airport, Waynesboro, GA, respectively. Airspace reconfiguration...

  13. 75 FR 32651 - Establishment of Class E Airspace; Quitman, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-09

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Quitman, GA AGENCY... April 1, 2010 that establishes Class E Airspace at Quitman Brooks County Airport, Quitman, GA....

  14. 76 FR 64235 - Establishment of Class E Airspace; Nahunta, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-18

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Nahunta, GA AGENCY... Airspace at Nahunta, GA, to accommodate the new Area Navigation (RNAV) Global Positioning System (GPS..., GA (76 FR 45478) Docket No. FAA-2011-0727. Subsequent to publication, the FAA found a...

  15. 77 FR 44120 - Establishment of Class E Airspace; Roundup, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-27

    ... airspace at Roundup Airport, Roundup, MT, to accommodate aircraft using new Area Navigation (RNAV) Global... action under 1 CFR part 51, subject to the annual revision of FAA Order 7400.9 and publication of... the TAAs. The airspace in question includes the following areas where Class E begins at 14,500...

  16. 76 FR 34576 - Amendment of Class E Airspace; Waynesboro, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-14

    ... Airspace at Waynesboro, VA, to accommodate the additional airspace need for the Standard Instrument Approach Procedures developed for Eagle's Nest Airport. This action enhances the safety and management of... procedures developed at Eagle's Nest Airport, Waynesboro, VA. This action is necessary for the safety...

  17. 75 FR 13670 - Amendment of Class E Airspace; Gadsden, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Gadsden, AL AGENCY: Federal... December 29, 2009 that amends Class E airspace at Northeast Alabama Regional, Gadsden, AL. DATES:...

  18. 76 FR 67054 - Amendment of Class E Airspace; Fayette, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-31

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Fayette, AL AGENCY: Federal... Fayette, AL, as the Fayette Non-Directional Beacon (NDB) has been decommissioned and new Standard... published in the Federal Register a notice of proposed rulemaking to amend Class E airspace at Fayette,...

  19. 78 FR 72009 - Establishment of Class E Airspace; Star, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-02

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Star, NC AGENCY: Federal... at Star, NC, to accommodate a new Area Navigation (RNAV) Global Positioning System (GPS) Standard... Federal Register a notice of proposed rulemaking to establish Class E airspace at Star, NC (78 FR...

  20. 78 FR 59807 - Establishment of Class E Airspace; Glasgow, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-30

    ... airspace at the Glasgow VHF Omni-Directional Radio Range/Distance Measuring Equipment (VOR/DME) navigation... the surface, at the Glasgow VOR/DME navigation aid, Glasgow, MT, to accommodate IFR aircraft under... within the scope of that authority as it establishes controlled airspace at the Glasgow VOR/DME,...

  1. 78 FR 34555 - Establishment of Class E Airspace; Gillette, WY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ... airspace at the Gillette VHF Omni-Directional Radio Range/Distance Measuring Equipment (VOR/DME), Gillette... the surface, at the Gillette VOR/DME navigation aid, Gillette, WY, to accommodate IFR aircraft under... within the scope of that authority as it establishes controlled airspace at the Gillette...

  2. 78 FR 65555 - Establishment of Class E Airspace; Salmon, ID

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-01

    ... airspace at the Salmon VHF Omni-Directional Radio Range/Distance Measuring Equipment (VOR/DME) navigation... the surface, at the Salmon VOR/DME navigation aid, Salmon, ID, to accommodate IFR aircraft under... within the scope of that authority as it establishes controlled airspace at the Salmon VOR/DME,...

  3. 75 FR 4270 - Modification of Class E Airspace; Anniston, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Modification of Class E Airspace; Anniston, AL AGENCY... October 28, 2009 that modifies the Class E airspace at Anniston Metropolitan Airport, Anniston, AL....

  4. 75 FR 81441 - Establishment of Class E Airspace; Benton, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Benton, IL AGENCY... airspace at Benton, IL, to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Benton Municipal Airport, Benton, IL. The FAA is taking this action to enhance the safety...

  5. 14 CFR 71.71 - Class E airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... (2) The airspace below 1,500 feet above the surface of the earth. (b) The airspace areas designated... by reference, see § 71.1) which extend upward from 700 feet or more above the surface of the earth... been prescribed, or from 1,200 feet or more above the surface of the earth for the purpose...

  6. 14 CFR 91.130 - Operations in Class C airspace.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Operations in Class C airspace. 91.130 Section 91.130 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION... designated. A satellite airport is any other airport within the Class C airspace area. (b) Traffic...

  7. 77 FR 42427 - Amendment of Class E Airspace; Grinnell, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Grinnell, IA AGENCY: Federal... Class E airspace at Grinnell Regional Airport, Grinnell, IA, by removing reference to the Grinnell NDB... Regional Airport, Grinnell, IA, and amends the geographic coordinates of the airport to coincide with...

  8. 75 FR 23580 - Amendment of Class E Airspace; Mapleton, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Mapleton, IA AGENCY: Federal... Mapleton, IA, adding additional controlled airspace to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAPs) at James G. Whiting Memorial Field Airport, Mapleton, IA. The FAA...

  9. 77 FR 68682 - Amendment of Class E Airspace; Guthrie, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Guthrie, IA AGENCY: Federal... Guthrie, IA. Decommissioning of the Guthrie Center non-directional radio beacon (NDB) at Guthrie County... proposed rulemaking (NPRM) to amend Class E airspace for the Guthrie, IA, area, creating...

  10. 78 FR 76053 - Amendment of Class E Airspace; Chariton, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-16

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Chariton, IA AGENCY: Federal... Chariton, IA. Decommissioning of the Chariton non-directional beacon (NDB) at Chariton Municipal Airport... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Chariton, IA,...

  11. 78 FR 67024 - Modification of Class E Airspace; Prineville, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... incorporated by reference in 14 CFR 71.1. The Class E airspace designations listed in this document will be... Federal Aviation Administration 14 CFR Part 71 Modification of Class E Airspace; Prineville, OR AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action modifies Class...

  12. 76 FR 72838 - Amendment of Class E Airspace; Luray, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... management of Instrument Flight Rules (IFR) operations within the National Airspace System. This action also..., 2011, and effective September 15, 2011, which is incorporated by reference in 14 CFR 71.1. The Class E... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Luray, VA AGENCY:...

  13. 78 FR 48294 - Amendment of Class E Airspace; Mason, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Mason, TX AGENCY: Federal... Mason, TX. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Mason County Airport. This action enhances the safety...

  14. 75 FR 29655 - Amendment of Class E Airspace; Batesville, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-27

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Batesville, AR AGENCY... airspace for Batesville, AR. Decommissioning of the Independence County non-directional beacon (NDB) at Batesville Regional Airport, Batesville, AR, has made this action necessary to enhance the safety...

  15. 75 FR 29657 - Establishment of Class E Airspace; Marianna, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-27

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Marianna, AR AGENCY... airspace for Marianna, AR to accommodate Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAPs) at Marianna/Lee County Airport--Steve Edwards Field, Marianna, AR. The FAA is taking this...

  16. 75 FR 39148 - Establishment of Class E Airspace; Lucin, UT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ..., UT, to facilitate vectoring of Instrument Flight Rules (IFR) traffic from en route airspace to Salt Lake City, UT. This will improve the safety and management of IFR operations for the Salt Lake City, UT... operations by vectoring IFR aircraft from en route airspace to Salt Lake City, UT. This action enhances...

  17. 75 FR 81442 - Modification of Class E Airspace; Rawlins, WY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ...) at Rawlins Municipal Airport/Harvey Field, has made this action necessary. This will improve the... CFR) part 71 by amending Class E surface airspace at Rawlins Municipal Airport/Harvey Field. The... within the scope of that authority as it amends controlled airspace at Rawlins Municipal...

  18. 75 FR 43814 - Amendment of Class D Airspace; Goldsboro, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-27

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D Airspace; Goldsboro, NC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends the Class D... D airspace for Seymour Johnson AFB, Goldsboro, NC (75 FR 17891) Docket No. FAA-2010-0095....

  19. 78 FR 67296 - Establishment of Class D Airspace; Mesquite, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-12

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class D Airspace; Mesquite, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class D... establish Class D airspace for Mesquite Metro Airport, Mesquite, TX (78 FR 48842) Docket No. FAA-2012-...

  20. 75 FR 67910 - Amendment of Class E Airspace; Charleston, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-04

    ...: This action amends Class E Airspace at Charleston, SC, by removing the East Cooper Airport from the airspace description. The East Cooper Airport has been renamed Mt. Pleasant Regional Airport- Faison Field... Charleston AFB/International Airport, the Charleston Executive Airport, and the East Cooper Airport. The...

  1. 78 FR 33963 - Amendment of Class E Airspace; Atwood, KS

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-06

    ... Administration 14 CFR Part 71 Amendment of Class E Airspace; Atwood, KS AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at Atwood, KS. Decommissioning of the Atwood non-directional radio beacon (NDB) at Atwood--Rawlins County--City County...

  2. 76 FR 61258 - Revision of Class E Airspace; Allakaket, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-04

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Allakaket, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at Allakaket, AK, to accommodate the amendment of one Standard Instrument Approach Procedure at the...

  3. 75 FR 33165 - Revision of Class E Airspace; Galena, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... revising Class E airspace at Edward G. Pitka Sr. Airport, AK, to accommodate three amended SIAPs and one... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Galena, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final Rule. SUMMARY: This action revises Class...

  4. 76 FR 60714 - Revision of Class E Airspace; Northway, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-30

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Northway, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at Northway, AK, to accommodate the amendment of one Standard Instrument Approach Procedure at the...

  5. 77 FR 45240 - Establishment of Class E Airspace; Quakertown, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Quakertown, PA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... published in the Federal Register a notice of proposed rulemaking to establish Class E airspace...

  6. 77 FR 34209 - Amendment of Class E Airspace; Tallahassee, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-11

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Tallahassee, FL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... published in the Federal Register a notice of proposed rulemaking to amend Class E airspace in...

  7. 77 FR 46282 - Amendment of Class E Airspace; Sweetwater, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-03

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Sweetwater, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Sweetwater, TX,...

  8. 75 FR 65226 - Establishment of Class E Airspace; Bamberg, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Bamberg, SC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Register a notice of proposed rulemaking to establish Class E airspace at Bamberg, SC (75 FR 52654)...

  9. 77 FR 1012 - Establishment of Class E Airspace; Inverness, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-09

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Inverness, FL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... published in the Federal Register a notice of proposed rulemaking to establish Class E airspace at...

  10. 76 FR 9220 - Establishment of Class E Airspace; Martinsville, IN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-17

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Martinsville, IN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking to establish Class E airspace for Martinsville,...

  11. 78 FR 18801 - Establishment of Class E Airspace; Beeville, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-28

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Beeville, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace at Chase...

  12. 78 FR 61179 - Establishment of Class E Airspace; Comanche, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-03

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Comanche, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... established for the airport in 2006, but the Class E airspace area to contain it was never...

  13. 76 FR 8624 - Revision of Class E Airspace; Barrow, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Barrow, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at...) 271-2850; e- mail: Martha.ctr.Dunn@faa.gov . Internet address:...

  14. 77 FR 66069 - Amendment of Class E Airspace; Perry, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-01

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Perry, IA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Perry, IA, area,...

  15. 76 FR 8626 - Revision of Class E Airspace; Shungnak, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Shungnak, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at..., Box 14, Anchorage, AK 99513-7587; telephone number (907) 271-5898; fax: (907) 271-2850; e-...

  16. 75 FR 41077 - Revision of Class E Airspace; Monterey, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-15

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Monterey, CA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at...: History The FAA received a request from NACO to clarify the legal description of the existing Class...

  17. 77 FR 16669 - Establishment of Class E Airspace; Bellefonte, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-22

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Bellefonte, PA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace 700 feet above...

  18. 78 FR 48296 - Amendment of Class E Airspace; Factoryville, PA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Factoryville, PA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... in the Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace at...

  19. 76 FR 16530 - Establishment of Class E Airspace; Creighton, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-24

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Creighton, NE AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking to establish Class E airspace for Creighton, NE,...

  20. 78 FR 22413 - Amendment of Class E Airspace; Omak, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Omak, WA AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E airspace at... necessary. This action also makes a minor change to the legal description in reference to the Class...

  1. 78 FR 48302 - Establishment of Class E Airspace; Wagner, SD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Wagner, SD AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace for the Wagner,...

  2. 75 FR 65224 - Amendment of Class E Airspace; Williston, ND

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Williston, ND AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Federal Register a notice of proposed rulemaking to amend Class E airspace for Williston, ND,...

  3. 78 FR 48300 - Establishment of Class E Airspace; Mahnomen, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Mahnomen, MN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... published in the Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace...

  4. 75 FR 65225 - Amendment of Class E Airspace; Youngstown, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Youngstown, OH AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Register a notice of proposed rulemaking to amend Class E airspace for Youngstown, OH, creating...

  5. 75 FR 4270 - Establishment of Class E Airspace; Tompkinsville, KY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Tompkinsville, KY AGENCY... September 14, 2009 that establishes Class E Airspace at Tompkinsville--Monroe County Airport,...

  6. 77 FR 28246 - Amendment of Class E Airspace; Tullahoma, TN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-14

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Tullahoma, TN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... amend Class E airspace at Tullahoma, TN (77 FR 12759). Interested parties were invited to participate...

  7. 75 FR 13668 - Amendment of Class E Airspace; Georgetown, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Georgetown, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Federal Register a notice of proposed rulemaking to amend Class E airspace for Georgetown...

  8. 75 FR 65228 - Revocation of Class E Airspace; Chilicothe, MO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Chilicothe, MO AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action removes Class E... that the Class E surface area airspace at Chilicothe Municipal Airport is no longer necessary and...

  9. 75 FR 4269 - Establishment of Class E Airspace; Lewisport, KY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Lewisport, KY... Register September 14, 2009 that establishes Class E Airspace at Hancock Co.--Ron Lewis Field,...

  10. 75 FR 4270 - Establishment of Class E Airspace; Saluda, SC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Saluda, SC... Register September 14, 2009 that establishes Class E Airspace at Saluda County Airport, Saluda, SC....

  11. 75 FR 4269 - Establishment of Class E Airspace; Clayton, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Clayton, GA AGENCY... September 14, 2009 that establishes Class E Airspace at Heaven's Landing Airport, Clayton, GA....

  12. 77 FR 45241 - Establishment of Class E Airspace; Apopka, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Apopka, FL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... published in the Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace...

  13. 76 FR 8625 - Revision of Class E Airspace; Savoonga, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... Federal Aviation Administration 14 CFR Part 71 Revision of Class E Airspace; Savoonga, AK AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action revises Class E airspace at...-5898; fax: (907) 271-2850; e-mail: martha.ctr.dunn@faa.gov . Internet address:...

  14. 75 FR 4269 - Establishment of Class E Airspace; Hertford, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Hertford, NC AGENCY... September 14, 2009 that establishes Class E Airspace at Harvey Point Defense Testing Activity, Hertford,...

  15. 77 FR 66068 - Amendment of Class E Airspace; Breckenridge, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-01

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Breckenridge, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action amends Class E... Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Breckenridge, TX,...

  16. 78 FR 48301 - Establishment of Class E Airspace; Walker, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Walker, MN AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking (NPRM) to establish Class E airspace for the Walker,...

  17. 78 FR 18802 - Establishment of Class E Airspace; Tecumseh, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-28

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Tecumseh, NE AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes Class E... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Tecumseh,...

  18. 75 FR 65227 - Revocation of Class E Airspace; Franklin, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Franklin, TX AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action removes Class E... rulemaking to remove Class E airspace for Franklin, TX (75 FR 36586) Docket No. FAA-2010-0603....

  19. 78 FR 32084 - Modification of Class D and Class E Airspace; Pueblo, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-29

    ... Federal Aviation Administration 14 CFR Part 71 Modification of Class D and Class E Airspace; Pueblo, CO... Class D airspace and Class E airspace areas at Pueblo Memorial Airport, Pueblo, CO, to accommodate... airspace at Pueblo, CO (78 FR 11996). Interested parties were invited to participate in this...

  20. 77 FR 55776 - Proposed Establishment of Class E Airspace; Walsenburg, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ...-ANM-20 Proposed Establishment of Class E Airspace; Walsenburg, CO AGENCY: Federal Aviation... establish Class E airspace at Spanish Peaks Airfield, Walsenburg, CO. Controlled airspace is necessary to... Airfield, Walsenburg, CO. Controlled airspace is necessary to accommodate aircraft using the new RNAV...

  1. 78 FR 31839 - Establishment of Class E Airspace; Beeville-Chase Field, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-28

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Beeville-Chase Field, TX... Register of March 28, 2013. The title and airspace designation are corrected to read Beeville-Chase Field... Register document FAA 2012-0821, Airspace Docket No. 12- ASW-8, establishes Class E Airspace at Chase...

  2. 78 FR 54413 - Proposed Establishment of Class E Airspace; Star, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-04

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Star, NC AGENCY... action proposes to establish Class E Airspace at Star, NC, to accommodate a new Area Navigation (RNAV... establish Class E airspace at Star, NC, providing the controlled airspace required to support the new...

  3. 77 FR 68683 - Amendment of Class E Airspace; Forest City, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Forest City, IA AGENCY... airspace at Forest City, IA. Additional controlled airspace is necessary to accommodate new Area Navigation... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Forest City,...

  4. 77 FR 4700 - Proposed Establishment of Class E Airspace; Freer, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-31

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Freer, TX...: This action proposes to establish Class E airspace at Freer, TX. Controlled airspace is necessary to... approach procedures at Seven C's Ranch Airport, Freer, TX. Controlled airspace is needed for the safety...

  5. 76 FR 38580 - Proposed Amendment of Class D Airspace; Eglin AFB, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-01

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class D Airspace; Eglin AFB, FL...: This action proposes to amend Class D Airspace in the Eglin Air Force Base (AFB), FL airspace area. The... amendment to Title 14, Code of Federal Regulations (14 CFR) part 71 to amend Class D airspace in the...

  6. 78 FR 52422 - Amendment of Class D and E Airspace; Wrightstown, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-23

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D and E Airspace; Wrightstown, NJ AGENCY... amends Class D and E Airspace at Wrightstown, NJ, by updating the geographic coordinates and changing the... (14 CFR) part 71 amends Class D airspace and E airspace designated as an extension to a Class...

  7. 76 FR 30532 - Amendment of Class D and E Airspace; Palmdale, CA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-26

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 Amendment of Class D and E Airspace; Palmdale, CA... D Airspace and Class E Airspace at Palmdale, CA, to accommodate aircraft using Instrument Landing.... No comments were received. Class D and Class E Airspace designations are published in paragraph...

  8. 77 FR 40488 - Amendment of Class D and Class E Airspace; Lakehurst, NJ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class D and Class E Airspace; Lakehurst, NJ...: This action changes the name of the airport associated with the Class D and Class E airspace at... name of the airport associated with the Class D airspace and Class E airspace designated as...

  9. 77 FR 50417 - Proposed Amendment of Class D and Class E Airspace; Lewiston, ID

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ... airspace, and Class E airspace extending upward from 700 feet above the surface and 1,200 feet above the... airspace 1,200 feet above the surface area to enhance safety in the Lewiston-Nez Pearce County Airport... airspace extending upward from 700 feet above the surface at Lewiston-Nez Perce County Airport,...

  10. 77 FR 19931 - Establishment of Class E Airspace; Boyne City, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Boyne City, MI AGENCY... airspace at Boyne City, MI. Controlled airspace is necessary to accommodate new Area Navigation (RNAV... Federal Register a notice of proposed rulemaking (NPRM) to amend Class E airspace for the Boyne City,...

  11. For Spacious Skies: Self-Separation with "Autonomous Flight Rules" in US Domestic Airspace

    NASA Technical Reports Server (NTRS)

    Wing, David J.; Cotton, William B.

    2011-01-01

    Autonomous Flight Rules (AFR) are proposed as a new set of operating regulations in which aircraft navigate on tracks of their choice while self-separating from traffic and weather. AFR would exist alongside Instrument and Visual Flight Rules (IFR and VFR) as one of three available flight options for any appropriately trained and qualified operator with the necessary certified equipment. Historically, ground-based separation services evolved by necessity as aircraft began operating in the clouds and were unable to see each other. Today, technologies for global precision navigation, emerging airborne surveillance, and onboard computing enable traffic conflict management to be fully integrated with navigation procedures onboard the aircraft. By self-separating, aircraft can operate with more flexibility and fewer flight restrictions than are required when using ground-based separation. The AFR concept proposes a practical means in which self-separating aircraft could share the same airspace as IFR and VFR aircraft without disrupting the ongoing processes of Air Traffic Control. The paper discusses the context and motivation for implementing self-separation in US domestic airspace. It presents a historical perspective on separation, the proposed way forward in AFR, the rationale behind mixed operations, and the expected benefits of AFR for the airspace user community.

  12. Development and Application of an Integrated Approach toward NASA Airspace Systems Research

    NASA Technical Reports Server (NTRS)

    Barhydt, Richard; Fong, Robert K.; Abramson, Paul D.; Koenke, Ed

    2008-01-01

    The National Aeronautics and Space Administration's (NASA) Airspace Systems Program is contributing air traffic management research in support of the 2025 Next Generation Air Transportation System (NextGen). Contributions support research and development needs provided by the interagency Joint Planning and Development Office (JPDO). These needs generally call for integrated technical solutions that improve system-level performance and work effectively across multiple domains and planning time horizons. In response, the Airspace Systems Program is pursuing an integrated research approach and has adapted systems engineering best practices for application in a research environment. Systems engineering methods aim to enable researchers to methodically compare different technical approaches, consider system-level performance, and develop compatible solutions. Systems engineering activities are performed iteratively as the research matures. Products of this approach include a demand and needs analysis, system-level descriptions focusing on NASA research contributions, system assessment and design studies, and common systemlevel metrics, scenarios, and assumptions. Results from the first systems engineering iteration include a preliminary demand and needs analysis; a functional modeling tool; and initial system-level metrics, scenario characteristics, and assumptions. Demand and needs analysis results suggest that several advanced concepts can mitigate demand/capacity imbalances for NextGen, but fall short of enabling three-times current-day capacity at the nation s busiest airports and airspace. Current activities are focusing on standardizing metrics, scenarios, and assumptions, conducting system-level performance assessments of integrated research solutions, and exploring key system design interfaces.

  13. Man/terminal interaction evaluation of computer operating system command and control service concepts. [in Spacelab

    NASA Technical Reports Server (NTRS)

    Dodson, D. W.; Shields, N. L., Jr.

    1978-01-01

    The Experiment Computer Operating System (ECOS) of the Spacelab will allow the onboard Payload Specialist to command experiment devices and display information relative to the performance of experiments. Three candidate ECOS command and control service concepts were reviewed and laboratory data on operator performance was taken for each concept. The command and control service concepts evaluated included a dedicated operator's menu display from which all command inputs were issued, a dedicated command key concept with which command inputs could be issued from any display, and a multi-display concept in which command inputs were issued from several dedicated function displays. Advantages and disadvantages are discussed in terms of training, operational errors, task performance time, and subjective comments of system operators.

  14. Spacelab user implementation assessment study. Volume 1: Concept development and evaluation

    NASA Technical Reports Server (NTRS)

    1975-01-01

    The total matrix of alternate Spacelab processing concepts and the rejection rationale utilized to reduce the matrix of 243 alternates to the final candidate processing concepts are developed. The work breakdown structure used for the systematic estimation and compilation of integration and checkout resources is presented along with descriptors of each element. Program models are provided of the space transportation system, the Spacelab, the orbiter, and the ATL that were used as the basis for the study trades, analyses, and optimizations. Resource requirements for all processing concepts are summarized along with the optimizations of the processing concepts. Concept evaluations including flight-rate sensitivities of the GSE, facilities, Spacelab hardware elements, and personnel are delineated. An analysis is presented of the applicability of the candidate concepts to potential spacelab users. The impact of the use of the western test range as an orbiter/spacelab launch site on the candidate processing concepts is evaluated. An assessment of the geographical co-location of experiment, Spacelab, and orbiter-cargo integration is included. Ownership options of the support module/system igloo are discussed.

  15. Evaluating Fault Management Operations Concepts for Next-Generation Spacecraft: What Eye Movements Tell Us

    NASA Technical Reports Server (NTRS)

    Hayashi, Miwa; Ravinder, Ujwala; McCann, Robert S.; Beutter, Brent; Spirkovska, Lily

    2009-01-01

    Performance enhancements associated with selected forms of automation were quantified in a recent human-in-the-loop evaluation of two candidate operational concepts for fault management on next-generation spacecraft. The baseline concept, called Elsie, featured a full-suite of "soft" fault management interfaces. However, operators were forced to diagnose malfunctions with minimal assistance from the standalone caution and warning system. The other concept, called Besi, incorporated a more capable C&W system with an automated fault diagnosis capability. Results from analyses of participants' eye movements indicate that the greatest empirical benefit of the automation stemmed from eliminating the need for text processing on cluttered, text-rich displays.

  16. 78 FR 52109 - Proposed Amendment of Class D and E Airspace, and Establishment of Class E Airspace; Salisbury, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-22

    ... 700 feet or more above the surface of the earth. * * * * * AEA MD E5 Salisbury, MD Salisbury-Ocean..., and establish Class E airspace at Salisbury-Ocean City Wicomico Regional Airport, Salisbury, MD, due... Federal Regulations (14 CFR) part 71 to amend Class D and Class E airspace at Salisbury-Ocean...

  17. 14 CFR 61.95 - Operations in Class B airspace and at airports located within Class B airspace.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... airports located within Class B airspace. 61.95 Section 61.95 Aeronautics and Space FEDERAL AVIATION... GROUND INSTRUCTORS Student Pilots § 61.95 Operations in Class B airspace and at airports located within... student pilot may not operate an aircraft on a solo flight to, from, or at an airport located within...

  18. 14 CFR 61.95 - Operations in Class B airspace and at airports located within Class B airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Operations in Class B airspace and at airports located within Class B airspace. 61.95 Section 61.95 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) AIRMEN CERTIFICATION: PILOTS, FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS Student Pilots §...

  19. 77 FR 9839 - Amendment of Class D and Class E Airspace, and Establishment of Class E Airspace; Bozeman, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-21

    ...This action modifies Class D and Class E airspace at Bozeman, Gallatin Field Airport, Bozeman, MT, to accommodate aircraft using Instrument Landing System (ILS) Localizer (LOC) standard instrument approach procedures at Bozeman, Gallatin Field Airport. This action also establishes Class E En Route Domestic airspace to facilitate vectoring of Instrument Flight Rules (IFR) operations at the......

  20. 78 FR 21084 - Proposed Amendment of Class D and E Airspace, and Establishment of Class E Airspace; Oceana NAS, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-09

    ... Traffic Control Tower at Oceana NAS (Apollo Soucek Field) operating on a part time basis. This action...-0038; Airspace Docket No. 13-AEA-2, at the beginning of your comments. You may also submit and review...; Airspace Docket No. 13-AEA-2) and be submitted in triplicate to the Docket Management System (see...

  1. 75 FR 65250 - Proposed Amendment of Class E Airspace and Revocation of Class E Airspace; Easton, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... informal docket may also be examined during normal business hours at the office of the Eastern Service... E airspace areas extending upward from 700 feet or more above the surface of the earth... airspace extending upward from 700 feet above the surface of the Earth within a 6.5-mile radius of...

  2. Field Artillery Ammunition Processing System (FAAPS) concept evaluation study. Ammunition Logistics Program

    SciTech Connect

    Kring, C.T.; Babcock, S.M.; Watkin, D.C.; Oliver, R.P.

    1992-06-01

    The Field Artillery Ammunition Processing System (FAAPS) is an initiative to introduce a palletized load system (PLS) that is transportable with an automated ammunition processing and storage system for use on the battlefield. System proponents have targeted a 20% increase in the ammunition processing rate over the current operation while simultaneously reducing the total number of assigned field artillery battalion personnel by 30. The overall objective of the FAAPS Project is the development and demonstration of an improved process to accomplish these goals. The initial phase of the FAAPS Project and the subject of this study is the FAAPS concept evaluation. The concept evaluation consists of (1) identifying assumptions and requirements, (2) documenting the process flow, (3) identifying and evaluating technologies available to accomplish the necessary ammunition processing and storage operations, and (4) presenting alternative concepts with associated costs, processing rates, and manpower requirements for accomplishing the operation. This study provides insight into the achievability of the desired objectives.

  3. Satellite power system concept development and evaluation program system definition technical assessment report

    SciTech Connect

    Not Available

    1980-12-01

    The results of the system definition studies conducted by NASA as a part of the Department of Energy/National Aeronautics and Space Administration SPS Concept Development and Evaluation Program are summarized. The purpose of the system definition efforts was to identify and define candidate SPS concepts and to evaluate the concepts in terms of technical and cost factors. Although the system definition efforts consisted primarily of evaluation and assessment of alternative technical approaches, a reference system was also defined to facilitate economic, environmental, and societal assessments by the Department of Energy. This reference system was designed to deliver 5 GW of electrical power to the utility grid. Topics covered include system definition; energy conversion and power management; power transmission and reception; structures, controls, and materials; construction and operations; and space transportation.

  4. An evaluation of concept based latent semantic indexing for clinical information retrieval.

    PubMed Central

    Chute, C. G.; Yang, Y.

    1992-01-01

    Latent Semantic Indexing (LSI) of surgical case report text using ICD-9-CM procedure codes and index terms was evaluated. The precision-recall performance of this two-step matrix retrieval process was compared with the SMART Document retrieval system, surface word matching, and humanly assigned procedure codes. Human coding performed best, two-step LSI did less well than surface matching or SMART. This evaluation suggests that concept-based LSI may be compromised by its two-stage nature and its dependence upon a robust term database linked to main concepts. However, the potential elegance of partial- credit concept matching merits the continued evaluation of LSI for clinical case retrieval. PMID:1482949

  5. Commercial UAV operations in civil airspace

    NASA Astrophysics Data System (ADS)

    Newcome, Laurence R.

    2000-11-01

    The Federal Aviation Administration is often portrayed as the major impediment to unmanned aerial vehicle expansion into civil government and commercial markets. This paper describes one company's record for successfully negotiating the FAA regulations and obtaining authorizations for several types of UAVs to fly commercial reconnaissance missions in civil airspace. The process and criteria for obtaining such authorizations are described. The mishap records of the Pioneer, Predator and Hunter UAVs are examined in regard to their impact on FAA rule making. The paper concludes with a discussion of the true impediments to UAV penetration of commercial markets to date.

  6. Program Assessment Report Statement of Findings: Satellite Power Systems Concept Development and Evaluation Program

    NASA Technical Reports Server (NTRS)

    1980-01-01

    This report states what is known, uncertain, and unknown about the Solar Power Satellite (SPS) concept - collecting solar energy in space and delivering the energy to Earth for the production of baseload electricity. This report discusses the important technical, environmental, and cost goal questions that must be answered prior to making a commitment to the SPS concept. Although significant technological, environmental and economic questions remain to be answered, the preliminary investigations undertaken in the Concept Development and Evaluation Program do provide a basis for a policy decision on further commitment. This report also suggests areas of research and experimentation required to acquire the knowledge by which a series of informed, time-phased decisions may be made concerning the possibility of the SPS concept playing a major role in the United States' energy future.

  7. A Concept for Robust, High Density Terminal Air Traffic Operations

    NASA Technical Reports Server (NTRS)

    Isaacson, Douglas R.; Robinson, John E.; Swenson, Harry N.; Denery, Dallas G.

    2010-01-01

    This paper describes a concept for future high-density, terminal air traffic operations that has been developed by interpreting the Joint Planning and Development Office s vision for the Next Generation (NextGen) Air Transportation System and coupling it with emergent NASA and other technologies and procedures during the NextGen timeframe. The concept described in this paper includes five core capabilities: 1) Extended Terminal Area Routing, 2) Precision Scheduling Along Routes, 3) Merging and Spacing, 4) Tactical Separation, and 5) Off-Nominal Recovery. Gradual changes are introduced to the National Airspace System (NAS) by phased enhancements to the core capabilities in the form of increased levels of automation and decision support as well as targeted task delegation. NASA will be evaluating these conceptual technological enhancements in a series of human-in-the-loop simulations and will accelerate development of the most promising capabilities in cooperation with the FAA through the Efficient Flows Into Congested Airspace Research Transition Team.

  8. Interaction of Airspace Partitions and Traffic Flow Management Delay

    NASA Technical Reports Server (NTRS)

    Palopo, Kee; Chatterji, Gano B.; Lee, Hak-Tae

    2010-01-01

    To ensure that air traffic demand does not exceed airport and airspace capacities, traffic management restrictions, such as delaying aircraft on the ground, assigning them different routes and metering them in the airspace, are implemented. To reduce the delays resulting from these restrictions, revising the partitioning of airspace has been proposed to distribute capacity to yield a more efficient airspace configuration. The capacity of an airspace partition, commonly referred to as a sector, is limited by the number of flights that an air traffic controller can safely manage within the sector. Where viable, re-partitioning of the airspace distributes the flights over more efficient sectors and reduces individual sector demand. This increases the overall airspace efficiency, but requires additional resources in some sectors in terms of controllers and equipment, which is undesirable. This study examines the tradeoff of the number of sectors designed for a specified amount of traffic in a clear-weather day and the delays needed for accommodating the traffic demand. Results show that most of the delays are caused by airport arrival and departure capacity constraints. Some delays caused by airspace capacity constraints can be eliminated by re-partitioning the airspace. Analyses show that about 360 high-altitude sectors, which are approximately today s operational number of sectors of 373, are adequate for delays to be driven solely by airport capacity constraints for the current daily air traffic demand. For a marginal increase of 15 seconds of average delay, the number of sectors can be reduced to 283. In addition, simulations of traffic growths of 15% and 20% with forecasted airport capacities in the years 2018 and 2025 show that delays will continue to be governed by airport capacities. In clear-weather days, for small increases in traffic demand, increasing sector capacities will have almost no effect on delays.

  9. Evaluating the Effects of Dimensionality in Advanced Avionic Display Concepts for Synthetic Vision Systems

    NASA Technical Reports Server (NTRS)

    Alexander, Amy L.; Prinzel, Lawrence J., III; Wickens, Christopher D.; Kramer, Lynda J.; Arthur, Jarvis J.; Bailey, Randall E.

    2007-01-01

    Synthetic vision systems provide an in-cockpit view of terrain and other hazards via a computer-generated display representation. Two experiments examined several display concepts for synthetic vision and evaluated how such displays modulate pilot performance. Experiment 1 (24 general aviation pilots) compared three navigational display (ND) concepts: 2D coplanar, 3D, and split-screen. Experiment 2 (12 commercial airline pilots) evaluated baseline 'blue sky/brown ground' or synthetic vision-enabled primary flight displays (PFDs) and three ND concepts: 2D coplanar with and without synthetic vision and a dynamic multi-mode rotatable exocentric format. In general, the results pointed to an overall advantage for a split-screen format, whether it be stand-alone (Experiment 1) or available via rotatable viewpoints (Experiment 2). Furthermore, Experiment 2 revealed benefits associated with utilizing synthetic vision in both the PFD and ND representations and the value of combined ego- and exocentric presentations.

  10. Evaluation of laminar flow control system concepts for subsonic commercial transport aircraft

    NASA Technical Reports Server (NTRS)

    1979-01-01

    Results of a 2-year study are reported which were carried out to extend the development of laminar flow control (LFC) technology and evaluate LFC systems concepts. The overall objective of the LFC program is to provide a sound basis for industry decisions on the application of LFC to future commercial transports. The study was organized into major tasks to support the stated objectives through application of LFC systems concepts to a baseline LFC transport initially generated for the study. Based on competitive evaluation of these concepts, a final selection was made for incorporation into the final design of an LFC transport which also included other advanced technology elements appropriate to the 1990 time period.

  11. Validating an Air Traffic Management Concept of Operation Using Statistical Modeling

    NASA Technical Reports Server (NTRS)

    He, Yuning; Davies, Misty Dawn

    2013-01-01

    Validating a concept of operation for a complex, safety-critical system (like the National Airspace System) is challenging because of the high dimensionality of the controllable parameters and the infinite number of states of the system. In this paper, we use statistical modeling techniques to explore the behavior of a conflict detection and resolution algorithm designed for the terminal airspace. These techniques predict the robustness of the system simulation to both nominal and off-nominal behaviors within the overall airspace. They also can be used to evaluate the output of the simulation against recorded airspace data. Additionally, the techniques carry with them a mathematical value of the worth of each prediction-a statistical uncertainty for any robustness estimate. Uncertainty Quantification (UQ) is the process of quantitative characterization and ultimately a reduction of uncertainties in complex systems. UQ is important for understanding the influence of uncertainties on the behavior of a system and therefore is valuable for design, analysis, and verification and validation. In this paper, we apply advanced statistical modeling methodologies and techniques on an advanced air traffic management system, namely the Terminal Tactical Separation Assured Flight Environment (T-TSAFE). We show initial results for a parameter analysis and safety boundary (envelope) detection in the high-dimensional parameter space. For our boundary analysis, we developed a new sequential approach based upon the design of computer experiments, allowing us to incorporate knowledge from domain experts into our modeling and to determine the most likely boundary shapes and its parameters. We carried out the analysis on system parameters and describe an initial approach that will allow us to include time-series inputs, such as the radar track data, into the analysis

  12. ThermoData engine (TDE): software implementation of the dynamic data evaluation concept. 4. Chemical reactions.

    PubMed

    Diky, Vladimir; Chirico, Robert D; Kazakov, Andrei F; Muzny, Chris D; Frenkel, Michael

    2009-12-01

    ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported recently in this journal. This paper describes the first application of this concept to the evaluation of thermodynamic properties for chemical reactions. Reaction properties evaluated are the enthalpies, entropies, Gibbs energies, and thermodynamic equilibrium constants. Details of key considerations in the critical evaluation of enthalpies of formation and of standard entropies for organic compounds are discussed in relation to their application in the calculation of reaction properties. Extensions to the class structure of the program are described that allow close linkage between the derived reaction properties and the underlying pure-component properties. Derivation of pure-component enthalpies of formation and of standard entropies through the use of directly measured reaction properties (enthalpies of reaction and equilibrium constants) is described. Directions for future enhancements are outlined.

  13. Evaluation of High Density Air Traffic Operations with Automation for Separation Assurance, Weather Avoidance and Schedule Conformance

    NASA Technical Reports Server (NTRS)

    Prevot, Thomas; Mercer, Joey S.; Martin, Lynne Hazel; Homola, Jeffrey R.; Cabrall, Christopher D.; Brasil, Connie L.

    2011-01-01

    In this paper we discuss the development and evaluation of our prototype technologies and procedures for far-term air traffic control operations with automation for separation assurance, weather avoidance and schedule conformance. Controller-in-the-loop simulations in the Airspace Operations Laboratory at the NASA Ames Research Center in 2010 have shown very promising results. We found the operations to provide high airspace throughput, excellent efficiency and schedule conformance. The simulation also highlighted areas for improvements: Short-term conflict situations sometimes resulted in separation violations, particularly for transitioning aircraft in complex traffic flows. The combination of heavy metering and growing weather resulted in an increased number of aircraft penetrating convective weather cells. To address these shortcomings technologies and procedures have been improved and the operations are being re-evaluated with the same scenarios. In this paper we will first describe the concept and technologies for automating separation assurance, weather avoidance, and schedule conformance. Second, the results from the 2010 simulation will be reviewed. We report human-systems integration aspects, safety and efficiency results as well as airspace throughput, workload, and operational acceptability. Next, improvements will be discussed that were made to address identified shortcomings. We conclude that, with further refinements, air traffic control operations with ground-based automated separation assurance can routinely provide currently unachievable levels of traffic throughput in the en route airspace.

  14. Program Evaluation on the Implementation of a Middle School Concept in Private Christian Schools

    ERIC Educational Resources Information Center

    Hall, James Chapman

    2015-01-01

    The purpose of this study was to determine the level of implementing a middle school concept in three private Christian schools using Daniel Stufflebeam's CIPP model of program evaluation. The National Middle School Survey was used to measure faculty and administrative perceptions of both the value and actual implementation of middle school…

  15. Implementation and Evaluation of a Course Concept Based on Reusable Learning Objects

    ERIC Educational Resources Information Center

    Van Zele, Els; Vandaele, Pieter; Botteldooren, Dick; Lenaerts, Josephina

    2003-01-01

    This article describes the implementation and evaluation of a learning objects based computer aided system for an advanced engineering course at Ghent University, Belgium. A new syllabus concept was introduced: students had access to a Web-delivered component and received an identical printed component as two sources of information additional to…

  16. Evaluating Uncertainty in Integrated Environmental Models: A Review of Concepts and Tools

    EPA Science Inventory

    This paper reviews concepts for evaluating integrated environmental models and discusses a list of relevant software-based tools. A simplified taxonomy for sources of uncertainty and a glossary of key terms with standard definitions are provided in the context of integrated appro...

  17. Linking Health Concepts in the Assessment and Evaluation of Water Distribution Systems

    ERIC Educational Resources Information Center

    Karney, Bryan W.; Filion, Yves R.

    2005-01-01

    The concept of health is not only a specific criterion for evaluation of water quality delivered by a distribution system but also a suitable paradigm for overall functioning of the hydraulic and structural components of the system. This article views health, despite its complexities, as the only criterion with suitable depth and breadth to allow…

  18. Evaluating the Interactive Learning Tool Simreal+ for Visualizing and Simulating Mathematical Concepts

    ERIC Educational Resources Information Center

    Hadjerrouit, Said

    2015-01-01

    This research study aims at evaluating the suitability of SimReal+ for effective use in teacher education. SimReal+ was originally developed to teach mathematics in universities, but it is has been recently improved to include school mathematics. The basic idea of SimReal+ is that the visualization of mathematical concepts is a powerful technique…

  19. Concepts in Static Electricity. Courseware Evaluation for Vocational and Technical Education.

    ERIC Educational Resources Information Center

    Sommer, Sandra; And Others

    This courseware evaluation rates the Concepts in Static Electricity program developed by Micro Learningware. (The program--not contained in this document--is a four-disk set covering the electroscope, charging by induction, grounding, and charging by conduction.) Part A describes the program in terms of subject area and hardware requirements…

  20. Innovative Access Programme for Young Mothers Wishing to Train in Childbirth Education: From Concept to Evaluation

    ERIC Educational Resources Information Center

    Nolan, Mary L.

    2008-01-01

    This paper describes the conception, planning, implementation and evaluation of an access programme arising out of an innovative collaboration between two charities, Straight Talking and the National Childbirth Trust. The access programme was designed at the request of a group of young mothers who had finished compulsory education and subsequently…

  1. High Resolution Visualization Applied to Future Heavy Airlift Concept Development and Evaluation

    NASA Technical Reports Server (NTRS)

    FordCook, A. B.; King, T.

    2012-01-01

    This paper explores the use of high resolution 3D visualization tools for exploring the feasibility and advantages of future military cargo airlift concepts and evaluating compatibility with existing and future payload requirements. Realistic 3D graphic representations of future airlifters are immersed in rich, supporting environments to demonstrate concepts of operations to key personnel for evaluation, feedback, and development of critical joint support. Accurate concept visualizations are reviewed by commanders, platform developers, loadmasters, soldiers, scientists, engineers, and key principal decision makers at various stages of development. The insight gained through the review of these physically and operationally realistic visualizations is essential to refining design concepts to meet competing requirements in a fiscally conservative defense finance environment. In addition, highly accurate 3D geometric models of existing and evolving large military vehicles are loaded into existing and proposed aircraft cargo bays. In this virtual aircraft test-loading environment, materiel developers, engineers, managers, and soldiers can realistically evaluate the compatibility of current and next-generation airlifters with proposed cargo.

  2. A Quick Method for Evaluating the Merits of a Proposed Low Sonic Boom Concept

    NASA Technical Reports Server (NTRS)

    Mack, Robert J.

    2003-01-01

    The characteristics of a proposed low-boom aircraft concept cannot be adequately assessed unless it is given an extensive, time-consuming, mission-performance, and sonic-boom analyses. So, it would be useful to have a method for performing a quick first-order sonic-boom and mission-range analysis. The evaluation method outlined in this report has the attributes of being both fast and reasonably accurate. It can also be used as a design tool to estimate the sonic-boom ground overpressures, mission range, and beginning-cruise weight of a new low-boom concept during the first stages of preliminary design.

  3. Arrow-wing supersonic cruise aircraft structural design concepts evaluation. Volume 1: Sections 1 through 6

    NASA Technical Reports Server (NTRS)

    Sakata, I. F.; Davis, G. W.

    1975-01-01

    The structural approach best suited for the design of a Mach 2.7 arrow-wing supersonic cruise aircraft was investigated. Results, procedures, and principal justification of results are presented. Detailed substantiation data are given. In general, each major analysis is presented sequentially in separate sections to provide continuity in the flow of the design concepts analysis effort. In addition to the design concepts evaluation and the detailed engineering design analyses, supporting tasks encompassing: (1) the controls system development; (2) the propulsion-airframe integration study; and (3) the advanced technology assessment are presented.

  4. Design and evaluation of a filter spectrometer concept for facsimile cameras

    NASA Technical Reports Server (NTRS)

    Kelly, W. L., IV; Jobson, D. J.; Rowland, C. W.

    1974-01-01

    The facsimile camera is an optical-mechanical scanning device which was selected as the imaging system for the Viking '75 lander missions to Mars. A concept which uses an interference filter-photosensor array to integrate a spectrometric capability with the basic imagery function of this camera was proposed for possible application to future missions. This paper is concerned with the design and evaluation of critical electronic circuits and components that are required to implement this concept. The feasibility of obtaining spectroradiometric data is demonstrated, and the performance of a laboratory model is described in terms of spectral range, angular and spectral resolution, and noise-equivalent radiance.

  5. Development and Evaluation of Sensor Concepts for Ageless Aerospace Vehicles: Report 4 - Phase 1 Implementation of the Concept Demonstrator

    NASA Technical Reports Server (NTRS)

    Abbott, David; Batten, Adam; Carpenter, David; Dunlop, John; Edwards, Graeme; Farmer, Tony; Gaffney, Bruce; Hedley, Mark; Hoschke, Nigel; Isaacs, Peter; Johnson, Mark; Lewis, Chris; Murdoch, Alex; Poulton, Geoff; Price, Don; Prokopenko, Mikhail; Rees, David; Scott, Andrew; Seneviratne, Sarath; Valencia, Philip; Wang, Peter; Whitnall, Denis

    2008-01-01

    This report describes the first phase of the implementation of the Concept Demonstrator. The Concept Demonstrator system is a powerful and flexible experimental test-bed platform for developing sensors, communications systems, and multi-agent based algorithms for an intelligent vehicle health monitoring system for deployment in aerospace vehicles. The Concept Demonstrator contains sensors and processing hardware distributed throughout the structure, and uses multi-agent algorithms to characterize impacts and determine an appropriate response to these impacts.

  6. 32 CFR 989.28 - Airspace and range proposals.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... initiated by the FAA affect military use, the roles are reversed. The proponent's action officers (civil engineering and local airspace management) must ensure that the FAA is fully integrated into the...

  7. 32 CFR 989.28 - Airspace and range proposals.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... initiated by the FAA affect military use, the roles are reversed. The proponent's action officers (civil engineering and local airspace management) must ensure that the FAA is fully integrated into the...

  8. 32 CFR 989.28 - Airspace and range proposals.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... initiated by the FAA affect military use, the roles are reversed. The proponent's action officers (civil engineering and local airspace management) must ensure that the FAA is fully integrated into the...

  9. 32 CFR 989.28 - Airspace and range proposals.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... initiated by the FAA affect military use, the roles are reversed. The proponent's action officers (civil engineering and local airspace management) must ensure that the FAA is fully integrated into the...

  10. 32 CFR 989.28 - Airspace and range proposals.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... initiated by the FAA affect military use, the roles are reversed. The proponent's action officers (civil engineering and local airspace management) must ensure that the FAA is fully integrated into the...

  11. 75 FR 79294 - Amendment of Class E Airspace; Henderson, KY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-20

    ... airspace at Henderson, KY. The Geneva Non-Directional Beacon (NDB) has been decommissioned and new Standard... due to the decommissioning of the Geneva NDB and cancellation of the NDB approach, and for...

  12. 76 FR 28308 - Modification of Class E Airspace; Poplar, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-17

    ... airspace at Poplar Municipal Airport, Poplar, MT. The airport was moved 1.5 Nautical Miles (NM) to the... Airport, Poplar, MT. The airport was moved 1.5 nautical miles to the northeast, and controlled...

  13. 76 FR 30821 - Amendment of Class E Airspace; Duluth, MN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-27

    .... SUPPLEMENTARY INFORMATION: History On March 23, 2011, the FAA published in the Federal Register a notice of... Airspace areas extending upward from 700 feet or more above the surface of the earth. * * * * * AGL MN...

  14. 78 FR 67298 - Establishment of Class E Airspace; Ennis, MT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-12

    ... INFORMATION: History On September 4, 2013, the FAA published in the Federal Register a notice of proposed...: Paragraph 6005 Class E airspace areas extending upward from 700 feet or more above the surface of the...

  15. 75 FR 62458 - Revision of Class E Airspace; Tanana, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-12

    ... INFORMATION: History On Tuesday, July 6, 2010, the FAA published a notice of proposed rulemaking in the...: * * * * * Paragraph 6005 Class E Airspace Extending Upward From 700 Feet or More Above the Surface of the...

  16. 78 FR 32085 - Amendment of Class E Airspace; Eureka, NV

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-29

    .... SUPPLEMENTARY INFORMATION: History On December 21, 2012, the FAA published in the Federal Register a notice of...: Paragraph 6005 Class E airspace areas extending upward from 700 feet or more above the surface of the...

  17. 78 FR 34553 - Amendment of Class E Airspace; Bend, OR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-10

    ...., Renton, WA, 98057; telephone (425) 203-4537. SUPPLEMENTARY INFORMATION: History On March 1, 2013, the FAA... Class E airspace areas extending upward from 700 feet or more above the surface of the...

  18. 78 FR 36411 - Amendment of Class E Airspace; Tuskegee, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ... Tuskegee, AL, as the Tuskegee VOR/DME has been decommissioned and airspace reconfiguration is necessary for... reconfiguration is necessary due to the decommissioning of the Tuskegee VOR/DME and cancellation of the...

  19. 78 FR 1742 - Amendment to Class B Airspace; Atlanta, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-09

    ... to increase safety and aid pilots in gaining situational awareness within or around the Class B area... airspace. The FAA finds that the new 6,000-floor still provides sufficient space for safe operations...

  20. 78 FR 14651 - Amendment of Class E Airspace; Goldsboro, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-07

    ... (GPS) Standard Instrument Approach Procedures at Mount Olive Municipal Airport. Airspace... Olive Municipal Airport and the Seymour Johnson TACAN, and recognizes the airport name change of... support the new RNAV (GPS) standard instrument approach procedures for Mount Olive Municipal Airport....

  1. 76 FR 55232 - Establishment of Class E Airspace; Copperhill, TN

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-07

    ...) Standard Instrument Approach Procedures serving Martin Campbell Field Airport. This action enhances the... System (GPS) Standard Instrument Approach Procedures developed for Martin Campbell Field Airport. This... scope of that authority as it establishes controlled airspace at Martin Campbell Field...

  2. 14 CFR 73.3 - Special use airspace.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... designated altitude floors and ceilings expressed as flight levels or as feet above mean sea level. Unless... flight level). (c) The horizontal limits of special use airspace are measured by boundaries described...

  3. 14 CFR 73.3 - Special use airspace.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... designated altitude floors and ceilings expressed as flight levels or as feet above mean sea level. Unless... flight level). (c) The horizontal limits of special use airspace are measured by boundaries described...

  4. 77 FR 39653 - Proposed Establishment of Class E Airspace; Reidsville, GA, and Proposed Amendment of Class E...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-05

    ... establish Class E Airspace at Reidsville, GA. Separation of existing Class E airspace surrounding Swinton... (formerly Reidsville Airport), Reidsville, GA, to accommodate the separation of existing Class E...

  5. Satellite power system concept development and evaluation program. Volume 2: System definition

    NASA Technical Reports Server (NTRS)

    1981-01-01

    The system level results of the system definition studies performed by NASA as a part of the Department of Energy/NASA satellite power system concept development and evaluation program are summarized. System requirements and guidelines are discussed as well as the major elements that comprise the reference system and its design options. Alternative system approaches including different system sizes, solid state amplifier (microwave) concepts, and laser power transmission system cost summaries are reviewed. An overview of the system analysis and planning efforts is included. The overall study led to the conclusion that the reference satellite power system concept is a feasible baseload source of electrical power and, within the assumed guidelines, the minimum cost per kilowatt is achieved at the maximum output of 5 gigawatts to the utility grid. Major unresolved technical issues include maximum allowable microwave power density in the ionosphere and performance/mass characteristics of laser power transmission systems.

  6. Simulation evaluation of TIMER, a time-based, terminal air traffic, flow-management concept

    NASA Technical Reports Server (NTRS)

    Credeur, Leonard; Capron, William R.

    1989-01-01

    A description of a time-based, extended terminal area ATC concept called Traffic Intelligence for the Management of Efficient Runway scheduling (TIMER) and the results of a fast-time evaluation are presented. The TIMER concept is intended to bridge the gap between today's ATC system and a future automated time-based ATC system. The TIMER concept integrates en route metering, fuel-efficient cruise and profile descents, terminal time-based sequencing and spacing together with computer-generated controller aids, to improve delivery precision for fuller use of runway capacity. Simulation results identify and show the effects and interactions of such key variables as horizon of control location, delivery time error at both the metering fix and runway threshold, aircraft separation requirements, delay discounting, wind, aircraft heading and speed errors, and knowledge of final approach speed.

  7. Satellite power system concept development and evaluation program. Volume 2: System defintion

    NASA Astrophysics Data System (ADS)

    1981-07-01

    The system level results of the system definition studies performed by NASA as a part of the Department of Energy/NASA satellite power system concept development and evaluation program are summarized. System requirements and guidelines are discussed as well as the major elements that comprise the reference system and its design options. Alternative system approaches including different system sizes, solid state amplifier (microwave) concepts, and laser power transmission system cost summaries are reviewed. An overview of the system analysis and planning efforts is included. The overall study led to the conclusion that the reference satellite power system concept is a feasible baseload source of electrical power and, within the assumed guidelines, the minimum cost per kilowatt is achieved at the maximum output of 5 gigawatts to the utility grid. Major unresolved technical issues include maximum allowable microwave power density in the ionosphere and performance/mass characteristics of laser power transmission systems.

  8. Small Aircraft Transportation System, Higher Volume Operations Concept: Normal Operations

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.; Jones, Kenneth M.; Consiglio, Maria C.; Williams, Daniel M.; Adams, Catherine A.

    2004-01-01

    This document defines the Small Aircraft Transportation System (SATS), Higher Volume Operations (HVO) concept for normal conditions. In this concept, a block of airspace would be established around designated non-towered, non-radar airports during periods of poor weather. Within this new airspace, pilots would take responsibility for separation assurance between their aircraft and other similarly equipped aircraft. Using onboard equipment and procedures, they would then approach and land at the airport. Departures would be handled in a similar fashion. The details for this operational concept are provided in this document.

  9. ThermoData Engine (TDE): software implementation of the dynamic data evaluation concept. 3. Binary mixtures.

    PubMed

    Diky, Vladimir; Chirico, Robert D; Kazakov, Andrei F; Muzny, Chris D; Frenkel, Michael

    2009-02-01

    ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported recently in this journal. The present paper describes the first application of this concept to the evaluation of thermophysical properties for binary chemical systems. Five activity-coefficient models have been implemented for representation of phase-equilibrium data (vapor-liquid, liquid-liquid, and solid-liquid equilibrium): NRTL, UNIQUAC, Van Laar, Margules/Redlich-Kister, and Wilson. Implementation of these models in TDE is fully described. Properties modeled individually are densities, surface tensions, critical temperatures, critical pressures, excess enthalpies, and the transport properties-viscosity and thermal conductivity. Extensions to the class structure of the program are described with emphasis on special features allowing close linkage between mixture and pure-component properties required for implementation of the models. Details of gas-phase models used in conjunction with the activity-coefficient models are shown. Initial implementation of the dynamic data evaluation concept for reactions is demonstrated with evaluation of enthalpies of formation for compounds containing carbon, hydrogen, oxygen, and nitrogen. Directions for future enhancements are outlined.

  10. Evaluation of Life Sciences Glovebox (LSG) and Multi-Purpose Crew Restraint Concepts

    NASA Technical Reports Server (NTRS)

    Whitmore, Mihriban

    2005-01-01

    Within the scope of the Multi-purpose Crew Restraints for Long Duration Spaceflights project, funded by Code U, it was proposed to conduct a series of evaluations on the ground and on the KC-135 to investigate the human factors issues concerning confined/unique workstations, such as the design of crew restraints. The usability of multiple crew restraints was evaluated for use with the Life Sciences Glovebox (LSG) and for performing general purpose tasks. The purpose of the KC-135 microgravity evaluation was to: (1) to investigate the usability and effectiveness of the concepts developed, (2) to gather recommendations for further development of the concepts, and (3) to verify the validity of the existing requirements. Some designs had already been tested during a March KC-135 evaluation, and testing revealed the need for modifications/enhancements. This flight was designed to test the new iterations, as well as some new concepts. This flight also involved higher fidelity tasks in the LSG, and the addition of load cells on the gloveports.

  11. Evaluation of Parallel-Element, Variable-Impedance, Broadband Acoustic Liner Concepts

    NASA Technical Reports Server (NTRS)

    Jones, Michael G.; Howerton, Brian M.; Ayle, Earl

    2012-01-01

    Recent trends in aircraft engine design have highlighted the need for acoustic liners that provide broadband sound absorption with reduced liner thickness. Three such liner concepts are evaluated using the NASA normal incidence tube. Two concepts employ additive manufacturing techniques to fabricate liners with variable chamber depths. The first relies on scrubbing losses within narrow chambers to provide acoustic resistance necessary for sound absorption. The second employs wide chambers that provide minimal resistance, and relies on a perforated sheet to provide acoustic resistance. The variable-depth chambers used in both concepts result in reactance spectra near zero. The third liner concept employs mesh-caps (resistive sheets) embedded at variable depths within adjacent honeycomb chambers to achieve a desired impedance spectrum. Each of these liner concepts is suitable for use as a broadband sound absorber design, and a transmission line model is presented that provides good comparison with their respective acoustic impedance spectra. This model can therefore be used to design acoustic liners to accurately achieve selected impedance spectra. Finally, the effects of increasing the perforated facesheet thickness are demonstrated, and the validity of prediction models based on lumped element and wave propagation approaches is investigated. The lumped element model compares favorably with measured results for liners with thin facesheets, but the wave propagation model provides good comparisons for a wide range of facesheet thicknesses.

  12. Evaluation of Airframe Noise Reduction Concepts via Simulations Using a Lattice Boltzmann Approach

    NASA Technical Reports Server (NTRS)

    Fares, Ehab; Casalino, Damiano; Khorrami, Mehdi R.

    2015-01-01

    Unsteady computations are presented for a high-fidelity, 18% scale, semi-span Gulfstream aircraft model in landing configuration, i.e. flap deflected at 39 degree and main landing gear deployed. The simulations employ the lattice Boltzmann solver PowerFLOW® to simultaneously capture the flow physics and acoustics in the near field. Sound propagation to the far field is obtained using a Ffowcs Williams and Hawkings acoustic analogy approach. In addition to the baseline geometry, which was presented previously, various noise reduction concepts for the flap and main landing gear are simulated. In particular, care is taken to fully resolve the complex geometrical details associated with these concepts in order to capture the resulting intricate local flow field thus enabling accurate prediction of their acoustic behavior. To determine aeroacoustic performance, the farfield noise predicted with the concepts applied is compared to high-fidelity simulations of the untreated baseline configurations. To assess the accuracy of the computed results, the aerodynamic and aeroacoustic impact of the noise reduction concepts is evaluated numerically and compared to experimental results for the same model. The trends and effectiveness of the simulated noise reduction concepts compare well with measured values and demonstrate that the computational approach is capable of capturing the primary effects of the acoustic treatment on a full aircraft model.

  13. 77 FR 19927 - Amendment of Class E Airspace; Willcox, AZ, and Revocation of Class E Airspace; Cochise, AZ

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-03

    ... conforming amendments. FOR FURTHER INFORMATION CONTACT: Eldon Taylor, Federal Aviation Administration... northeast of the airport. That airspace extending upward from 1,200 feet above the surface bounded by a...

  14. 75 FR 47736 - Amendment of Class D and E Airspace, Establishment of Class E Airspace; Patuxent River, MD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-09

    ... control tower and establish Class E airspace designated as surface areas to accommodate the additional... operations of the airport control tower, establishing in advance the dates and times by a Notice to...

  15. 76 FR 59306 - Proposed Establishment of Class D and E Airspace and Amendment of Class E Airspace; Punta Gorda, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-26

    ... new air traffic control tower at Punta Gorda Airport. Controlled airspace is necessary for the safety... is necessary to support the operation of the new air traffic control tower, and would enhance...

  16. 77 FR 15297 - Proposed Establishment of Class D and E Airspace Amendment of Class E Airspace; East Hampton, NY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... tower at East Hampton Airport. Controlled airspace is necessary for the safety and management of... the operation of the new air traffic control tower, and would enhance the safety and management of...

  17. Light induced fluorescence evaluation: A novel concept for caries diagnosis and excavation.

    PubMed

    Gugnani, Neeraj; Pandit, Ik; Srivastava, Nikhil; Gupta, Monika; Gugnani, Shalini

    2011-10-01

    In the era of minimal invasive dentistry, every effort should be directed to preserve the maximum tooth structure during cavity preparation. However, while making cavities, clinicians usually get indecisive at what point caries excavation should be stopped, so as to involve only the infected dentin. Apparent lack of valid clinical markers, difficulties with the use of caries detector dyes and chemo mechanical caries removal systems carve out a need for an improved system, which would be helpful to differentiate between the healthy and infected dentin during caries excavation. Light induced fluorescence evaluation is a novel concept implicated for caries detection and for making decisions while cavity preparation. This paper describes a few cases that explain the clinical applicability of this concept, using the SoproLife camera that works on this principle. Autofluorescence masking effect was found to be helpful for caries detection and the red fluorescence in the treatment mode was found helpful in deciding 'when to stop the excavation process.' Light induced fluorescence evaluation - Diagnosis - Treatment concept concept can be used as a guide for caries detection and excavation. It also facilitates decision making for stopping the caries excavation so as to involve infected dentin only.

  18. Evaluation of Novel Liner Concepts for Fan and Airframe Noise Reduction

    NASA Technical Reports Server (NTRS)

    Jones, M. G.; Howerton, B. M.

    2016-01-01

    This paper presents a review of four novel liner concepts: soft vanes, over-the-rotor liners, external liners, and flap side-edge liners. A number of similarities in the design and evaluation of these concepts emerged during these investigations. Since these were the first attempts to study these particular liner concepts, there was limited information to guide the design process. In all cases, the target frequencies (or frequency range) were known, but the optimum acoustic impedance and optimum liner placement were typically not known. For these cases, the maximum available surface was used and a c-impedance was targeted based on the assumption the sound field impinges on the surface at normal incidence. This choice proved fruitful for every application. An impedance prediction model was used to design variable-depth liner configurations, and a graphical design code (ILIAD) was developed to aid in this process. The ability to build increasingly complex liner configurations via additive manufacturing was key, such that multiple designs could quickly be tested in a normal incidence impedance tube. The Two-Thickness Method was used to evaluate available bulk materials, such that bulk liners could also be considered for each application. These novel liner concepts provide sufficient noise reduction to warrant further investigations.

  19. Orbital transfer vehicle concept definition and system analysis study. Volume 2: OTV concept definition and evaluation. Book 1: Mission and system requirements

    NASA Technical Reports Server (NTRS)

    Kofal, Allen E.

    1987-01-01

    The mission and system requirements for the concept definition and system analysis of the Orbital Transfer Vehicle (OTV) are established. The requirements set forth constitute the single authority for the selection, evaluation, and optimization of the technical performance and design of the OTV. This requirements document forms the basis for the Ground and Space Based OTV concept definition analyses and establishes the physical, functional, performance and design relationships to STS, Space Station, Orbital Maneuvering Vehicle (OMV), and payloads.

  20. Orbital transfer vehicle concept definition and system analysis study, 1985. Volume 2: OTV concept definition and evaluation. Book 2: OTV concept definition

    NASA Technical Reports Server (NTRS)

    Dickman, Glen J.; Keeley, J. T.

    1985-01-01

    This portion of the Orbit Transfer Vehicle (OTV) Concept Definition and System Analysis Study, Volume 2, Book 2, summarizes the flight vehicle concept selection process and results. It presents an overview of OTV mission and system design requirements and describes the family of OTV recommended, the reasons for this recommendation, and the associated Phase C/D Program.

  1. Program Evaluation: A Consumer Evaluation of Alternative Contractor Concepts in Government Food Service

    DTIC Science & Technology

    1974-09-01

    enough condiments) were significantly reduced in the contractor concept and the floors were re- ported to be significantly cleaner. The frequency...silverware CP <D a> Clean trays CD CD CD Clean dishes and glasses CD CD O) Dirty floors CD CD CD Dirty tables and chairs CD CD CD Brightly lighted CD...glasses CD CD Clean floors CD CD Clean tables and chairs CD <D Dimly lighted a> CD Lacking in sunlight CD d Noisy CD a, Uncrowded CD CD

  2. Small Unmanned Aircraft Systems Integration into the National Airspace System Visual-Line-of-Sight Human-in-the-Loop Experiment

    NASA Technical Reports Server (NTRS)

    Trujillo, Anna C.; Ghatas, Rania W.; Mcadaragh, Raymon; Burdette, Daniel W.; Comstock, James R.; Hempley, Lucas E.; Fan, Hui

    2015-01-01

    As part of the Unmanned Aircraft Systems (UAS) in the National Airspace System (NAS) project, research on integrating small UAS (sUAS) into the NAS was underway by a human-systems integration (HSI) team at the NASA Langley Research Center. Minimal to no research has been conducted on the safe, effective, and efficient manner in which to integrate these aircraft into the NAS. sUAS are defined as aircraft weighing 55 pounds or less. The objective of this human system integration team was to build a UAS Ground Control Station (GCS) and to develop a research test-bed and database that provides data, proof of concept, and human factors guidelines for GCS operations in the NAS. The objectives of this experiment were to evaluate the effectiveness and safety of flying sUAS in Class D and Class G airspace utilizing manual control inputs and voice radio communications between the pilot, mission control, and air traffic control. The design of the experiment included three sets of GCS display configurations, in addition to a hand-held control unit. The three different display configurations were VLOS, VLOS + Primary Flight Display (PFD), and VLOS + PFD + Moving Map (Map). Test subject pilots had better situation awareness of their vehicle position, altitude, airspeed, location over the ground, and mission track using the Map display configuration. This configuration allowed the pilots to complete the mission objectives with less workload, at the expense of having better situation awareness of other aircraft. The subjects were better able to see other aircraft when using the VLOS display configuration. However, their mission performance, as well as their ability to aviate and navigate, was reduced compared to runs that included the PFD and Map displays.

  3. Data-Intensive Evaluation: The Concept, Methods, and Prospects of Higher Education Monitoring Evaluation

    ERIC Educational Resources Information Center

    Wang, Zhanjun; Qiao, Weifeng; Li, Jiangbo

    2016-01-01

    Higher education monitoring evaluation is a process that uses modern information technology to continually collect and deeply analyze relevant data, visually present the state of higher education, and provide an objective basis for value judgments and scientific decision making by diverse bodies Higher education monitoring evaluation is…

  4. 76 FR 53048 - Amendment of Class D and Class E Airspace and Establishment of Class E Airspace; Casper, WY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-25

    ... (Lat. 43 05'27'' N., long. 106 16'37'' W.) Casper ASR (Lat. 42 55'16'' N., long. 106 27'15'' W.) That airspace extending upward from 700 feet above the surface within a 23.5-mile radius of the Casper ASR; that airspace extending upward from 1,200 feet above the surface within the 37.5-mile radius of the Casper...

  5. 76 FR 36017 - Proposed Amendment of Class D and Class E Airspace and Establishment of Class E Airspace; Casper, WY

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-21

    ...., long. 106 16'37'' W.) Casper ASR (Lat. 42 55'16'' N., long. 106 27'15'' W.) That airspace extending upward from 700 feet above the surface within a 23.5-mile radius of the Casper ASR; that airspace extending upward from 1,200 feet above the surface within the 37.5-mile radius of the Casper ASR, and...

  6. Effects of Special Use Airspace on Economic Benefits of Direct Flights

    NASA Technical Reports Server (NTRS)

    Datta, Koushik; Barrington, Craig; Foster, John D. (Technical Monitor)

    1996-01-01

    A methodology for estimating the economic effects of Special Use Airspace (SUA) on direct route flights is presented in this paper. The methodology is based on evaluating operating costs of aircraft and analyzing the different ground-track distances traveled by flights under different air traffic scenarios. Using this methodology the following objectives are evaluated: optimistic bias of studies that assume accessible SUAs the maximum economic benefit of dynamic use of SUAs and the marginal economic benefit of the dynamic use of individual SUAs.

  7. Benefit Opportunities for Integrated Surface and Airspace Departure Metering at Charlotte-Douglas International Airport

    NASA Technical Reports Server (NTRS)

    Coppenbarger, Rich; Jung, Yoon; Kozon, Tom; Farrahi, Amir; Malik, Wakar; Lee, Hanbong; Chevalley, Eric; Kistler, Matt

    2016-01-01

    NASA is collaborating with the FAA and aviation industry to develop and demonstrate new capabilities that integrate arrival, departure, and surface air-traffic operations. The concept relies on trajectory-based departure scheduling and collaborative decision making to reduce delays and uncertainties in taxi and climb operations. The paper describes the concept and benefit mechanisms aimed at improving flight efficiency and predictability while maintaining or improving operational throughput. The potential impact of the technology is studied and discussed through a quantitative analysis of relevant shortfalls at the site identified for initial deployment and demonstration in 2017: Charlotte-Douglas International Airport. Results from trajectory analysis indicate substantial opportunity to reduce taxi delays for both departures and arrivals by metering departures at the gate in a manner that maximizes throughput while adhering to takeoff restrictions due mostly to airspace constraints. Substantial taxi-out delay reduction is shown for flights subject to departure restrictions stemming from traffic flow management initiatives. Opportunities to improve the predictability of taxi, takeoff, and climb operations are examined and their potential impact on airline scheduling decisions and air-traffic forecasting is discussed. In addition, the potential to improve throughput with departure scheduling that maximizes use of available runway and airspace capacity is analyzed.

  8. Evaluation of advanced lift concepts and fuel conservative short-haul aircraft, volume 1

    NASA Technical Reports Server (NTRS)

    Renshaw, J. H.; Bowden, M. K.; Narucki, C. W.; Bennett, J. A.; Smith, P. R.; Ferrill, R. S.; Randall, C. C.; Tibbetts, J. G.; Patterson, R. W.; Meyer, R. T.

    1974-01-01

    The performance and economics of a twin-engine augmentor wing airplane were evaluated in two phases. Design aspects of the over-the-wing/internally blown flap hybrid, augmentor wing, and mechanical flap aircraft were investigated for 910 m. field length with parametric extension to other field lengths. Fuel savings achievable by application of advanced lift concepts to short-haul aircraft were evaluated and the effect of different field lengths, cruise requirements, and noise levels on fuel consumption and airplane economics at higher fuel prices were determined. Conclusions and recommendations are presented.

  9. 75 FR 66345 - Proposed Amendment of Class E Airspace; Taos, NM

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-28

    ... action proposes to amend Class E airspace at Taos, NM. Decommissioning of the Ski non-directional beacon..., Taos, NM. Airspace reconfiguration is necessary due to the decommissioning of the Ski NDB and...

  10. 76 FR 54152 - Proposed Amendment of Class E Airspace Galbraith Lake, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-31

    ...: This action proposes to amend Class E airspace at Galbraith Lake AK. The creation of two special... Class E5 airspace at the Galbraith Lake Airport in Galbraith Lake, AK, to accommodate the creation...

  11. 76 FR 49388 - Proposed Establishment of Class E Airspace; Tatitlek, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-10

    ...: This action proposes to establish Class E airspace at Tatitlek, AK. The creation of a standard... establishing Class E5 airspace at the Tatitlek Airport in Tatitlek, AK, to accommodate the creation of the...

  12. 77 FR 42430 - Establishment of Class E Airspace; West Memphis, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-19

    ... Class E airspace at West Memphis, AR. Separation of existing Class E airspace surrounding West Memphis... extending upward from 700 feet above the surface at West Memphis, AR, to accommodate the separation...

  13. 77 FR 17363 - Proposed Establishment of Class E Airspace; West Memphis, AR

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-26

    ...). SUMMARY: This action proposes to establish Class E airspace at West Memphis, AR. Separation of existing... West Memphis, AR, to accommodate the separation of existing Class E airspace surrounding West...

  14. 75 FR 22712 - Proposed Establishment of Class D Airspace; San Marcos, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-30

    ... control tower has made controlled airspace necessary at San Marcos Municipal Airport. The FAA is taking... establishing Class D airspace at San Marcos Municipal Airport, San Marcos, TX. An air traffic control...

  15. 75 FR 78645 - Proposed Amendment of Class E Airspace; Kenton, OH

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-16

    ... identify the docket number FAA-2010-1054/Airspace Docket No. 10- AGL-23, at the beginning of your comments... No. FAA-2010-1054/Airspace Docket No. 10-AGL-23.'' The postcard will be date/time stamped...

  16. 75 FR 41983 - Establishment of Class D Airspace; San Marcos, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-20

    ... airspace for San Marcos Municipal Airport, San Marcos, TX. Establishment of an air traffic control tower... establishing Class D airspace at San Marcos, TX. Establishment of an air traffic control tower at San...

  17. ThermoData Engine (TDE) software implementation of the dynamic data evaluation concept. 7. Ternary mixtures.

    PubMed

    Diky, Vladimir; Chirico, Robert D; Muzny, Chris D; Kazakov, Andrei F; Kroenlein, Kenneth; Magee, Joseph W; Abdulagatov, Ilmutdin; Kang, Jeong Won; Frenkel, Michael

    2012-01-23

    ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported in this journal. The present paper describes the first application of this concept to the evaluation of thermophysical properties for ternary chemical systems. The method involves construction of Redlich-Kister type equations for individual properties (excess volume, thermal conductivity, viscosity, surface tension, and excess enthalpy) and activity coefficient models for phase equilibrium properties (vapor-liquid and liquid-liquid equilibrium). Constructed ternary models are based on those for the three pure component and three binary subsystems evaluated on demand through the TDE software algorithms. All models are described in detail, and extensions to the class structure of the program are provided. Reliable evaluation of properties for the binary subsystems is essential for successful property evaluations for ternary systems, and algorithms are described to aid appropriate parameter selection and fitting for the implemented activity coefficient models (NRTL, Wilson, Van Laar, Redlich-Kister, and UNIQUAC). Two activity coefficient models based on group contributions (original UNIFAC and NIST-KT-UNIFAC) are also implemented. Novel features of the user interface are shown, and directions for future enhancements are outlined.

  18. Evaluation of the home-energy-rating concept and the Massachusetts Pilot Project

    SciTech Connect

    Frankel, M.L.; Duberg, J.A.

    1983-06-01

    This is a report on the results of an evaluation of a home-energy-rating concept based on a Massachusetts pilot project. The focus of the evaluation was on: (1) the compatibility of the Massachusetts rating with the RCS program, (2) who would use the rating and how, (3) qualitative estimates of benefits and costs, and (4) recommendations for further use and testing of the rating. In addition the evaluation of the rating concept also attempted to determine what if any effect the home energy rating has on the demand for energy audits, on the propensity of customers who received ratings to undertake recommended energy-efficiency home improvements, and on changes in mortgage-lending procedures for energy-efficient homes. The evaluation consisted of telephone and in-person discussions with the project developers, the various professional user groups, the recipients of the energy ratings, and control groups of audit customers that did not receive the energy rating. The evaluation was designed to determine the results of the pilot project, assess the project's effectiveness, and analyze the potential for transferring the rating procedure to other geographic locations.

  19. Novel evaluation method of vehicle suspension performance based on concept of wheel turn center

    NASA Astrophysics Data System (ADS)

    Wang, Bo; Guan, Hsin; Lu, Pingping; Zhan, Jun

    2015-09-01

    The current research of suspension performance evaluation is mixed in the evaluation of vehicle handling and ride comfort. However, it is lack of a direct and independent evaluation method for suspension performance. In this paper, a novel wheel turn center method is proposed to evaluate the suspension performance. This method is based on the concept and application of wheel turn center (WTC) and sprung mass turn center (SPTC). The vehicle body and each wheel are regarded to be independent rigid bodies and have their own turn centers which reflect respective steering motions and responses. Since the suspension is the link between vehicle body and wheels, the consistence between the sprung mass turn center and the wheel turn center reflects the effect and performance of the suspension system. Firstly, the concept and appropriate calculation method of WTC and SPTC are developed. Then the degree of inconsistence between WTC and SPTC and the time that they achieve consistence, when the vehicle experiences from transient steering to steady steering state, are proposed to evaluate suspension performance. The suspension evaluation tests are conducted under different vehicle velocities and lateral accelerations by using CarSim software. The simulation results show that the inconsistence of steering motion between vehicle body and wheels are mainly at high speeds and low lateral accelerations. Finally, based on the proposed evaluation indexes, the influences of different suspension characteristic parameters on suspension performance and their matches to improve steering coordination are discussed. The proposed wheel turn center method provides a guidance and potential application for suspension evaluation and optimization.

  20. Flight Test Evaluation of the Airborne Information for Lateral Spacing (AILS) Concept

    NASA Technical Reports Server (NTRS)

    Abbott, Terence S.

    2002-01-01

    The Airborne Information for Lateral Spacing (AILS) concept is designed to support independent parallel approach operations to runways spaced as close as 2,500 feet. This report briefly describes the AILS operational concept and the results of a flight test of one implementation of this concept. The focus of this flight test experiment was to validate a prior simulator study, evaluating pilot performance, pilot acceptability, and minimum miss-distances for the rare situation in which an aircraft on one approach intrudes into the path of an aircraft on the other approach. Although the flight data set was not meant to be a statistically valid sample, the trends acquired in flight followed those of the simulator and therefore met the intent of validating the findings from the simulator. Results from this study showed that the design-goal mean miss-distance of 1,200 feet to potential collision situations was surpassed with an actual mean miss-distance of 1,859 feet. Pilot reaction times to the alerting system, which was an operational concern, averaged 0.65 seconds, were well below the design goal reaction time of 2.0 seconds. From the results of both of these tests, it can be concluded that this operational concept, with supporting technology and procedures, may provide an operationally viable means for conducting simultaneous, independent instrument approaches to runways spaced as close as 2500 ft.

  1. Flight Test Evaluation of Synthetic Vision Concepts at a Terrain Challenged Airport

    NASA Technical Reports Server (NTRS)

    Kramer, Lynda J.; Prince, Lawrence J., III; Bailey, Randell E.; Arthur, Jarvis J., III; Parrish, Russell V.

    2004-01-01

    NASA's Synthetic Vision Systems (SVS) Project is striving to eliminate poor visibility as a causal factor in aircraft accidents as well as enhance operational capabilities of all aircraft through the display of computer generated imagery derived from an onboard database of terrain, obstacle, and airport information. To achieve these objectives, NASA 757 flight test research was conducted at the Eagle-Vail, Colorado airport to evaluate three SVS display types (Head-up Display, Head-Down Size A, Head-Down Size X) and two terrain texture methods (photo-realistic, generic) in comparison to the simulated Baseline Boeing-757 Electronic Attitude Direction Indicator and Navigation/Terrain Awareness and Warning System displays. The results of the experiment showed significantly improved situation awareness, performance, and workload for SVS concepts compared to the Baseline displays and confirmed the retrofit capability of the Head-Up Display and Size A SVS concepts. The research also demonstrated that the tunnel guidance display concept used within the SVS concepts achieved required navigation performance (RNP) criteria.

  2. Managing the integration and harmonization of national airspace for unmanned and manned systems

    NASA Astrophysics Data System (ADS)

    Mumm, Hans

    This dissertation examines the leadership challenge created by the requirement to integrate unmanned aerial vehicles (UAVs) into the national airspace system (NAS). The lack of UAV-related federal rules and regulations is a primary factor prolonging this integration. This effort focuses primarily on the leadership portion of the solution and not the technological requirements. The research explores an adaptation of the complexity theory that offers a potential leadership framework for the government, industry, and academia to use for achieving the full integration of UAVs into the NAS. Due to the large number of stakeholders and the multitude of interrelated issues, a complexity-theory-leadership methodology was created and examined as a potential way to help the FAA accelerate their rule-making efforts. This dissertation focuses on United States UAV issues. The United States is one of the leaders in the unmanned systems arena, to include the first significant use of recoverable autonomous weaponized systems in combat. Issues such as airspace, airworthiness, social issues, privacy issues, regulations, and the lack of policies, procedures, or governance are universal for all countries that are active in this technology area. This qualitative dissertation makes use of the grounded theory methodology as it combines a literature review and research along with interviews with subject matter experts, and information gained from attending UAV related gatherings/discussions. The investigation uncovered significant FAA process impediments as well as some possible break through concepts that could work well with the complexity-theory-leadership methodology. Keywords: Complexity theory, leadership, change management, UAV, unmanned aerial vehicle, National Airspace, NAS, FAA, Federal Aviation Administration.

  3. An exploratory study with preliminary results: The development and evaluation of a Genetics Concept Inventory

    NASA Astrophysics Data System (ADS)

    Hott, Adam M.

    Modern science education reform includes the development of standards and recommendations for content as well as the development and evaluation of pedagogy, but demonstrates limited assessment of student knowledge. Student knowledge assessment is an important factor in measuring the scientific literacy of current students. Concept inventories have been developed and used for the past fourteen years to assess non-science major student conceptual understanding of a content area. Inventories have been developed in the fields of physics, astronomy, chemistry and biology. The development and evaluation of a Genetics Concept Inventory (GCI) is presented here. The reliability estimate of 0.62 is supported by a respected panel of genetics educators' revisions, no significant gender bias, and the ability of junior and senior biology majors to outperform the non-science majors. Pretest/Posttest comparisons show a significant increase in five of six genetics content areas as well as a 9% increase on the overall percent score for the instrument. Although the Genetics Concept Inventory presented here needs further modification and testing, it is the first step in the development of a quality assessment tool for genetics content.

  4. Evaluation of laminar flow control system concepts for subsonic commercial transport aircraft

    NASA Technical Reports Server (NTRS)

    1980-01-01

    A study was conducted to evaluate alternatives in the design of laminar flow control (LFC) subsonic commercial transport aircraft for operation in the 1980's period. Analyses were conducted to select mission parameters and define optimum aircraft configurational parameters for the selected mission, defined by a passenger payload of 400 and a design range of 12,038 km (6500 n mi). The baseline aircraft developed for this mission was used as a vehicle for the evaluation and development of alternative LFC system concepts. Alternatives were evaluated in the areas of aerodynamics structures, materials, LFC systems, leading-edge region cleaning and integration of auxiliary systems. Based on these evaluations, concept in each area were selected for further development and testing and ultimate incorporation in the final study aircraft. Relative to a similarly-optimized advanced technology turbulent transport, the final LFC configuration is approximately equal in direct operating cost but provides decreases of 8.2% in gross weight and 21.7% in fuel consumption.

  5. 78 FR 33019 - Proposed Amendment of Class E Airspace; Commerce, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-03

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Commerce, TX AGENCY... action proposes to amend Class E airspace at Commerce, TX. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAPs) at Commerce Municipal Airport (AAF). The...

  6. 75 FR 27229 - Proposed Modification of Class B Airspace; Chicago, IL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-14

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Modification of Class B Airspace; Chicago, IL...: This action proposes to modify the Chicago, IL, Class B airspace area by expanding the existing... procedures within Class B airspace, and segregating IFR aircraft at Chicago O'Hare International Airport...

  7. 77 FR 48060 - Establishment of Class E Airspace; Fort Morgan, CO

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-13

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Fort Morgan, CO AGENCY... airspace at Fort Morgan, CO, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning... notice of proposed rulemaking (NPRM) to establish controlled airspace at Fort Morgan, CO (77 FR...

  8. 78 FR 76781 - Proposed Modification of Class B Airspace; Salt Lake City, UT

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-19

    ...; Salt Lake City, UT AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Lake City Class B airspace area by raising the floor of a small portion of Class B airspace between the Salt Lake City Class B surface area and the Hill Air Force Base (AFB) Class D airspace area....

  9. 75 FR 64971 - Proposed Establishment of Class E Airspace; Central City, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-21

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Central City...). SUMMARY: This action proposes to establish Class E airspace at Central City, NE. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Central City...

  10. 76 FR 72868 - Proposed Establishment of Class E Airspace; Boyne City, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Boyne City, MI...: This action proposes to establish Class E airspace at Boyne City, MI. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Boyne City Municipal...

  11. 78 FR 49986 - Proposed Establishment of Class E Airspace; Loup City, NE

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Loup City, NE...: This action proposes to establish Class E airspace at Loup City, NE. Controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Loup City Municipal Airport....

  12. 77 FR 49399 - Proposed Amendment of Class E Airspace; Forest City, IA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-16

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Forest City, IA...: This action proposes to amend Class E airspace at Forest City, IA. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAP) at Forest City Municipal...

  13. 78 FR 48299 - Establishment of Class D Airspace; Bryant AAF, Anchorage, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class D Airspace; Bryant AAF, Anchorage... establishes Class D airspace at Bryant Army Airfield (AAF), Anchorage AK. This action provides controlled... Federal Register a notice of proposed rulemaking (NPRM) to establish Class D airspace at Bryant...

  14. 78 FR 59806 - Establishment of Class E Airspace; White Mountain, AK

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-30

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; White Mountain, AK... Class E airspace at White Mountain Airport, White Mountain, AK, to accommodate aircraft using new Area... Federal Register a notice of proposed rulemaking (NPRM) to establish controlled airspace at White...

  15. 75 FR 48550 - Amendment of Class E Airspace; Pine Mountain, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-11

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Pine Mountain, GA AGENCY... Airspace at Pine Mountain, GA, to accommodate the Standard Instrument Approach Procedures (SIAPs) developed... proposed rulemaking to amend Class E airspace at Pine Mountain, GA (75 FR 28765) Docket No....

  16. 78 FR 19097 - Establishment of Class E Airspace; Round Mountain, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; Round Mountain, TX... Class E airspace at Round Mountain, TX. Controlled airspace is necessary to accommodate new Area... the West Ranch Airport, Round Mountain, TX (77 FR 71367) Docket No. FAA-2012-0771. Interested...

  17. 76 FR 52596 - Proposed Establishment of Class C Airspace for Long Beach, CA; Public Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-23

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class C Airspace for Long Beach... airspace users and others, concerning a proposal to establish Class C airspace at Long Beach, CA. The... on or before December 12, 2011. ADDRESSES: The meetings will be held at the Holiday Inn Long...

  18. 76 FR 31510 - Proposed Amendment of Class E Airspace; Rutherfordton, NC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ... airspace needed for the Standard Instrument Approach Procedures (SIAPs) developed for Rutherford County... airspace required to support new standard instrument approach procedures for Rutherford County Airport. The... of that authority as it would amend Class E airspace at Rutherford County Airport, Rutherfordton,...

  19. 78 FR 6261 - Proposed Amendment of Class E Airspace; Griffin, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... action proposes to amend Class E Airspace at Griffin, GA, as the Griffin Non-Directional Beacon (NDB) has... as it would amend Class E airspace at Griffin- Spalding County Airport, Griffin, GA. This proposal... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Griffin, GA...

  20. 78 FR 52114 - Proposed Amendment of Class E Airspace; Macon, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-22

    ... action proposes to amend Class E Airspace at Macon, GA, as the Bay Creek NDB has been decommissioned and... of that authority as it would amend Class E airspace in the Macon, GA, area. This proposal would be... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Macon, GA...

  1. 75 FR 28765 - Amendment of Class E Airspace; Pine Mountain, GA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-24

    ... of that authority as it would amend Class E airspace at Harris County Airport, Pine Mountain, GA... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Pine Mountain, GA AGENCY... action proposes to amend Class E Airspace at Pine Mountain, GA, to accommodate the additional...

  2. 75 FR 15360 - Proposed Amendment of Class E Airspace; Austin, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Austin, TX AGENCY... action proposes to amend Class E airspace in the Austin, TX area. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAPs) at Austin Executive...

  3. 76 FR 64236 - Establishment of Class E Airspace; New Market, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-18

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; New Market, VA AGENCY... Airspace at New Market, VA, to accommodate the new Standard Instrument Approach Procedures serving New Market Airport. This action enhances the safety and airspace management of Instrument Flight Rules...

  4. 76 FR 44288 - Establishment of Class E Airspace; New Market, VA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-25

    ... Federal Aviation Administration 14 CFR Part 71 Establishment of Class E Airspace; New Market, VA AGENCY... action proposes to establish Class E Airspace at New Market, VA, to accommodate the additional airspace needed for the Standard Instrument Approach Procedures developed for New Market Airport. This...

  5. 76 FR 28888 - Revocation of Class E Airspace; Gruver Cluck Ranch Airport, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-19

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Gruver Cluck Ranch Airport... removes Class E airspace at Gruver, Cluck Ranch Airport, TX. The airport has been abandoned, thereby eliminating the need for controlled airspace in the Gruver, Cluck Ranch Airport, TX, area. The FAA is...

  6. 78 FR 76779 - Proposed Modification of the Philadelphia, PA, Class B Airspace Area

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-19

    ...This action proposes to amend the description of Area G of the Philadelphia Class B airspace area to correct a design error that resulted in the Class B airspace being published 2.1 nautical miles (NM) larger on the southeast side of the area than intended. No other changes to the Philadelphia Class B airspace are being...

  7. 78 FR 74005 - Amendment of Class D and Class E Airspace; Grand Forks, ND

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ... MSL within a 4.2-mile radius of Grand Forks International Airport. This Class D airspace area is... airspace extending upward from the surface to and including 3,400 feet MSL within a 4.9-mile radius of....9-mile radius to 5.6 miles south of the airport, excluding that airspace within the Grand...

  8. 77 FR 52218 - Amendment of Class E Airspace; Montgomery, AL, Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Montgomery, AL, Correction... controlled airspace in the Montgomery, AL, area. The corrected coordinates for Maxwell AFB and Wetumpka..., technical amendment, in the Federal Register amending the Class E airspace area for Montgomery, AL,...

  9. 78 FR 25402 - Proposed Amendment of Class D Airspace; Sparta, WI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ..., Sparta, WI. Changes to the airspace description are necessary due to the need to exclude active military restricted airspace. The FAA is taking this action to enhance the safety and management of Instrument Flight... R-6901A/B. Controlled airspace is needed for the safety and management of IFR operations at...

  10. 75 FR 51173 - Amendment of Class E Airspace; Port Angeles, WA

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-19

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Port Angeles, WA AGENCY... Class E airspace at Port Angeles, WA. The Ediz Hook Nondirectional Radio Beacon (NDB) has been... controlled airspace at Port Angeles, WA (75 FR 33556). Interested parties were invited to participate in...

  11. 78 FR 18931 - Proposed Establishment of Class E Airspace; Bass Harbor, ME

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-28

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Bass Harbor, ME...: This action proposes to establish Class E Airspace at Bass Harbor, ME, to accommodate a new Area...) serving Bass Harbor Heliport. This action would enhance the safety and airspace management of...

  12. 77 FR 45237 - Amendment of Class D and E Airspace; Fort Rucker, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... Administration 14 CFR Part 71 Amendment of Class D and E Airspace; Fort Rucker, AL AGENCY: Federal Aviation... Airspace at Fort Rucker, AL, by updating the geographic coordinates of Cairns Army Air Field to aid in the... of instrument flight rules (IFR) operations within the Fort Rucker, AL airspace area....

  13. 76 FR 44285 - Proposed Amendment of Class E Airspace; Fayette, AL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-25

    ... Airspace; Fayette, AL AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: This action proposes to amend Class E Airspace at Fayette, AL, as the Fayette Non... at Richard Arthur Field, Fayette, AL. Airspace reconfiguration is necessary due to...

  14. 78 FR 14477 - Proposed Establishment of Class E Airspace; Pine Island, FL

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-06

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Pine Island, FL...: This action proposes to establish Class E Airspace at Pine Island, FL, to accommodate a new Area...) serving Pine Island Heliport. This action would enhance the safety and airspace management of...

  15. 76 FR 21826 - Proposed Amendment of Class E Airspace; Drummond Island, MI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-19

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Drummond Island, MI...: This action proposes to amend Class E airspace at Drummond Island, MI. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures at Drummond Island...

  16. 77 FR 68716 - Proposed Amendment of Class E Airspace; Hot Springs, SD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Amendment of Class E Airspace; Hot Springs, SD...: This action proposes to amend Class E airspace at Hot Springs, SD. Additional controlled airspace is necessary to accommodate new Standard Instrument Approach Procedures (SIAPs) at Hot Springs...

  17. 78 FR 14911 - Amendment of Class E Airspace; Hot Springs, SD

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-08

    ... Federal Aviation Administration 14 CFR Part 71 Amendment of Class E Airspace; Hot Springs, SD AGENCY... airspace at Hot Springs, SD. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures at Hot Springs Municipal Airport. The FAA is taking...

  18. 75 FR 49868 - Proposed Establishment of Class E Airspace; Kalaupapa, HI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-16

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Kalaupapa, HI...: This action proposes to establish Class E airspace at Kalaupapa, HI, to accommodate aircraft using a... airspace extending upward from 700 feet above the surface at Kalaupapa Airport, Kalaupapa, HI....

  19. 76 FR 3571 - Proposed Establishment of Class E Airspace; Kahului, HI

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-20

    ... Federal Aviation Administration 14 CFR Part 71 Proposed Establishment of Class E Airspace; Kahului, HI...: This action proposes to establish Class E airspace at Kahului Airport, Kahului, HI. Controlled airspace... approach procedures at Kahului Airport, Kahului, HI. The FAA is proposing this action to enhance the...

  20. 75 FR 81442 - Revocation of Class E Airspace; Lone Star, TX

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... Federal Aviation Administration 14 CFR Part 71 Revocation of Class E Airspace; Lone Star, TX AGENCY... airspace at Lone Star, TX. Abandonment of the former Lone Star Steel Company ] Airport and cancellation of... the Lone Star, TX, area. The FAA is taking this action to ensure the efficient use of airspace...