Science.gov

Sample records for f4c airplane model

  1. 75 FR 39804 - Airworthiness Directives; The Boeing Company Model 757 Airplanes, Model 767 Airplanes, and Model...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ... Model 757 Airplanes, Model 767 Airplanes, and Model 777-200 and -300 Series Airplanes AGENCY: Federal... directive (AD) for certain Model 757 airplanes, Model 767 airplanes, and Model 777-200 and -300 series...) that would apply to certain Model 757 airplanes, Model 767 airplanes, and Model 777-200 and -300...

  2. MLS: Airplane system modeling

    NASA Technical Reports Server (NTRS)

    Thompson, A. D.; Stapleton, B. P.; Walen, D. B.; Rieder, P. F.; Moss, D. G.

    1981-01-01

    Analysis, modeling, and simulations were conducted as part of a multiyear investigation of the more important airplane-system-related items of the microwave landing system (MLS). Particular emphasis was placed upon the airplane RF system, including the antenna radiation distribution, the cabling options from the antenna to the receiver, and the overall impact of the airborne system gains and losses upon the direct-path signal structure. In addition, effort was expended toward determining the impact of the MLS upon the airplane flight management system and developing the initial stages of a fast-time MLS automatic control system simulation model. Results ot these studies are presented.

  3. 76 FR 61645 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-05

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340... November 21, 2011. ADDRESSES: You may send comments by any of the following methods: Federal...

  4. 76 FR 4219 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ...-279-AD; Amendment 39-16583; AD 2011-02-09] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340... comments on this AD by March 11, 2011. ADDRESSES: You may send comments by any of the following...

  5. 75 FR 28463 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model BAe 146 Airplanes and Model Avro...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-21

    ...-16301; AD 2010-10-22] RIN 2120-AA64 Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model BAe 146 Airplanes and Model Avro 146-RJ Airplanes AGENCY: Federal Aviation Administration (FAA... airworthiness directive (AD), which applies to Model BAe 146 airplanes and Model Avro 146-RJ airplanes. That...

  6. 75 FR 10701 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model BAe 146 Airplanes and Model Avro...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-09

    ... (Operations) Limited Model BAe 146 Airplanes and Model Avro 146-RJ Airplanes AGENCY: Federal Aviation... directive (AD) that applies to all Model BAe 146 airplanes and Model Avro 146-RJ airplanes. The original.... ADDRESSES: You may send comments by any of the following methods: Federal eRulemaking Portal: Go to...

  7. Variable-Structure Control of a Model Glider Airplane

    NASA Technical Reports Server (NTRS)

    Waszak, Martin R.; Anderson, Mark R.

    2008-01-01

    A variable-structure control system designed to enable a fuselage-heavy airplane to recover from spin has been demonstrated in a hand-launched, instrumented model glider airplane. Variable-structure control is a high-speed switching feedback control technique that has been developed for control of nonlinear dynamic systems.

  8. F-16XL Basic Airplane Model in the BART

    NASA Technical Reports Server (NTRS)

    1994-01-01

    4% F-16XL model in BART. Model configuration is the basic airplane, with air dams and missiles. Tests in the tunnel included surface pressures, 5 hole probe, and on and off surface flow visualization.

  9. Mathematical model of induced flow on the airplane vertical tail

    NASA Astrophysics Data System (ADS)

    Rotaru, Constantin; Cîrciu, Ionicǎ; Edu, Raluca Ioana

    2016-06-01

    In this paper is presented a mathematical model of the flow around the vertical tail of an airplane, based on the general elements of the aerodynamic design, with details leading to the separate formulation of the Fourier coefficients in the series solution of the Prandtl's lifting-line equation. Numerical results are obtained in Maple soft environment, for a standard configuration of an airplane geometry. The results include the discussion of the vortex model for the sidewash gradient on the vertical stabilizer.

  10. Application of trajectory optimization techniques to upper atmosphere sampling flights using the F4-C Phantom aircraft

    NASA Technical Reports Server (NTRS)

    Hague, D. S.; Merz, A. W.

    1975-01-01

    Altitude potential of an off-the-shelf F4-C aircraft is examined. It is shown that the standard F4-C has a maximum altitude capability in the region from 85000 to 95000 ft, depending on the minimum dynamic pressures deemed acceptable for adequate flight control. By using engine overspeed capability and by making use of prevailing winds in the stratosphere, it is suggested that the maximum altitude achievable by an F4-C should be in the vicinity of 95000 ft for routine flight operation. This altitude is well in excess of the minimum altitudes which must be achieved for monitoring the possible growth of suspected aerosol contaminants.

  11. 78 FR 73993 - Special Conditions: Cessna Model 680 Series Airplanes; Aircraft Electronic System Security...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ...These special conditions are issued for the Cessna Model 680 Series airplanes. These airplanes will have a novel or unusual design feature associated with the architecture and connectivity capabilities of the airplanes' computer systems and networks. Connectivity to, or access by, external systems and networks may result in security vulnerabilities to the airplanes' systems. The proposed......

  12. An evaluation of aerodynamics modeling of spinning light airplanes

    NASA Technical Reports Server (NTRS)

    Pamadi, B. N.; Taylor, L. W., Jr.

    1983-01-01

    This paper extends the application of the modified strip theory for wing body combination of a spinning light airplane reported earlier. In addition, to account for the contribution of the tail plane, the shielding effect on vertical tail under steady state spin condition is modeled from basic aerodynamic considerations. The results of this combined analysis, presented for some light airplane configurations, are shown to be in good agreement with spin tunnel rotary balance test data.

  13. 78 FR 63845 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Isolation or Airplane Electronic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ..., 2000 (65 FR 19477-19478), as well as at http://DocketsInfo.dot.gov/ . Docket: Background documents or...; Isolation or Airplane Electronic System Security Protection From Unauthorized Internal Access AGENCY... control surfaces. The Model EMB-550 airplane is designed for 8 passengers, with a maximum of 12...

  14. Design Oriented Structural Modeling for Airplane Conceptual Design Optimization

    NASA Technical Reports Server (NTRS)

    Livne, Eli

    1999-01-01

    The main goal for research conducted with the support of this grant was to develop design oriented structural optimization methods for the conceptual design of airplanes. Traditionally in conceptual design airframe weight is estimated based on statistical equations developed over years of fitting airplane weight data in data bases of similar existing air- planes. Utilization of such regression equations for the design of new airplanes can be justified only if the new air-planes use structural technology similar to the technology on the airplanes in those weight data bases. If any new structural technology is to be pursued or any new unconventional configurations designed the statistical weight equations cannot be used. In such cases any structural weight estimation must be based on rigorous "physics based" structural analysis and optimization of the airframes under consideration. Work under this grant progressed to explore airframe design-oriented structural optimization techniques along two lines of research: methods based on "fast" design oriented finite element technology and methods based on equivalent plate / equivalent shell models of airframes, in which the vehicle is modelled as an assembly of plate and shell components, each simulating a lifting surface or nacelle / fuselage pieces. Since response to changes in geometry are essential in conceptual design of airplanes, as well as the capability to optimize the shape itself, research supported by this grant sought to develop efficient techniques for parametrization of airplane shape and sensitivity analysis with respect to shape design variables. Towards the end of the grant period a prototype automated structural analysis code designed to work with the NASA Aircraft Synthesis conceptual design code ACS= was delivered to NASA Ames.

  15. 76 FR 28683 - Airworthiness Directives; Airbus Model A330 and A340 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-18

    ... was published on March 22, 2011 (76 FR 15872) for Model A330-200 and -300 series airplanes. That NPRM..., 2011 (76 FR 8612) for Model A340-200, -300, -500, and -600 series airplanes. That AD requires revising... Directives; Airbus Model A330 and A340 Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  16. 75 FR 6092 - Special Conditions: Model C-27J Airplane; Class E Cargo Compartment Lavatory

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-08

    ... Federal Aviation Administration 14 CFR Part 25 Special Conditions: Model C-27J Airplane; Class E Cargo.... SUMMARY: These special conditions are issued for the Alenia Model C-27J airplane. This airplane has novel... certification of a twin-engine, commercial transport designated as the Model C-27J. The C-27J is a...

  17. 75 FR 60667 - Airworthiness Directives; Learjet Inc. Model 45 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-01

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Learjet Inc. Model... rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all Model 45 airplanes... AD by November 15, 2010. ADDRESSES: You may send comments by any of the following methods: Federal...

  18. 75 FR 32255 - Airworthiness Directives; Learjet Inc. Model 60 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-08

    ... Register on May 29, 2009 (74 FR 25682). That NPRM proposed to require revising the Tire-Servicing section... higher gross weight and tire pressure than the Model 55 airplane. In addition, a review of the hydraulic... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR...

  19. 78 FR 76248 - Special Conditions: Airbus, Model A350-900 Series Airplane; Side Stick Controller

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ..., 2000 (65 FR 19477-19478), as well as at http:// DocketsInfo.dot.gov/ . Docket: Background documents or... A350-900 Series Airplane; Side Stick Controller AGENCY: Federal Aviation Administration (FAA), DOT... Airbus Model A350-900 series airplanes. These airplanes will have a novel or unusual design...

  20. 78 FR 73995 - Special Conditions: Cessna Model 680 Series Airplanes; Aircraft Electronic System Security...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-10

    ...These special conditions are issued for the Cessna Model 680 series airplanes. These airplanes will have novel or unusual design features associated with connectivity of the passenger service computer systems to the airplane critical systems and data networks. The network architecture is composed of several connected networks including the following: 1. Flight-Safety related control and......

  1. 76 FR 53348 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model BAe 146 Airplanes and Model Avro...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... (Operations) Limited Model BAe 146 Airplanes and Model Avro 146-RJ Airplanes AGENCY: Federal Aviation... send comments by any of the following methods: Federal eRulemaking Portal: Go to http://www.regulations... proposed AD. Discussion On May 3, 2010, we issued AD 2010-10-22, Amendment 39-16301 (75 FR 28463, May...

  2. 76 FR 2281 - Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 Airplanes, and Model...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-13

    ... (OPERATIONS) LIMITED Model BAe 146 Airplanes, and Model Avro 146-RJ Airplanes AGENCY: Federal Aviation... comments by any of the following methods: Federal eRulemaking Portal: Go to http://www.regulations.gov... this proposed AD. Discussion On June 14, 2005, we issued AD 2005-13-19, Amendment 39-14156 (70 FR...

  3. 78 FR 14007 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Electrical/Electronic Equipment Bay...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ...These special conditions are issued for the Embraer S.A. Model EMB-550 airplane. This airplane will have novel or unusual design features, specifically distributed electrical and electronic equipment bays in pressurized areas of the airplane. Older transport category airplane electrical/electronic equipment bay installations are located in the lower lobe where the flight crew could determine......

  4. 75 FR 46868 - Airworthiness Directives; The Boeing Company Model 747 Airplanes and Model 767 Airplanes Equipped...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-04

    ... airplanes. That original NPRM was published in the Federal Register on April 7, 2008 (73 FR 18721). That... Relevant Rulemaking Related NPRM, Docket FAA-2008-0403, Directorate Identifier 2007-NM- 166-AD (73 FR 18719... Global Supply Systems (Global) requests that we revise AD 2007-12- 07, Amendment 39-15085 (72 FR...

  5. 76 FR 27872 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-13

    ... INDUSTRIES S.p.A Model P- 180 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ] ACTION: Final... known U.S. owners and operators of PIAGGIO AERO INDUSTRIES S.p.A (Piaggio) Model PIAGGIO P-180 airplanes... fuselage on a number of Piaggio Model P.180 aeroplanes, which resulted in jamming of the flight...

  6. 76 FR 68366 - Airworthiness Directives; The Boeing Company Model 777-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-04

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Directives; The Boeing Company Model 777-200 and - 300 Series Airplanes AGENCY: Federal Aviation... airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes....

  7. 75 FR 21528 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-26

    ... Policies and Procedures (44 FR 11034, February 26, 1979), and 3. Will not have a significant economic... Douglas Corporation Model MD- 90-30 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Model MD-90-30 airplanes. This proposed AD would require inspecting for corrosion of the...

  8. 76 FR 68368 - Airworthiness Directives; DASSAULT AVIATION Model MYSTERE-FALCON 900 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-04

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Model MYSTERE-FALCON 900 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... DASSAULT AVIATION Model MYSTERE-FALCON 900 airplanes. This proposed AD results from mandatory...

  9. 76 FR 54093 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-31

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or.... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of.... Applicability (c) This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes, certificated...

  10. Zoom-climb altitude maximization of the F-4C and F-15 aircraft for stratospheric sampling missions

    NASA Technical Reports Server (NTRS)

    Hague, D. S.; Merz, A. W.; Page, W. A.

    1976-01-01

    Some predictions indicate that byproducts of aerosol containers may lead to a modification of the ultraviolet-radiation shielding properties of the upper atmosphere. NASA currently monitors atmospheric properties to 70,000 feet using U-2 aircraft. Testing is needed at about 100,000 feet for adequate monitoring of possible aerosol contaminants during the next decade. To study this problem the F-4C and F-15 aircraft were analyzed to determine their maximum altitude ability in zoom-climb maneuvers. These trajectories must satisfy realistic dynamic pressure and Mach number constraints. Maximum altitudes obtained for the F4-C are above 90,000 feet, and for the F-15 above 100,000 feet. Sensitivities of the zoom-climb altitudes were found with respect to several variables including vehicle thrust, initial weight, stratospheric winds and the constraints. A final decision on aircraft selection must be based on mission modification costs and operational considerations balanced against their respective zoom altitude performance capabilities.

  11. Estimated Flying Qualities of the Martin Model 202 Airplane

    NASA Technical Reports Server (NTRS)

    Weil, Joseph; Spear, Margaret

    1947-01-01

    The flying qualities of the Martin model 202 airplane have been estimated chiefly from the results of tests of an 0.0875-scale complete model with power made in the Wright Brothers tunnel at the Massachusetts Institute of Technology and from partial span wing and isolated vertical tail tests made in the Georgia Tech Nine-Foot Tunnel. These estimated handling qualities have been compared with existing Army-Navy and CAA requirements for stability and control. The results of the analysis indicate that the Martin model 202 airplane will possess satisfactory handling qualities in all respects except possibly in the following: The amount of elevator control available for landing or maneuvering in the landing condition is either marginal or insufficient when using the adjustable stabilizer linked to the flaps . Moreover, indications are that the longitudinal trim changes will be neither large nor appreciably worse with a fixed stabilizer than with the contemplated arrangement utilizing the adjustable stabilizer in an attempt to reduce the magnitude of the trim changes caused by flap deflection.

  12. 77 FR 75071 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Electrical/Electronic Equipment Bay...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-19

    ... Privacy Act Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478... Model EMB-550 airplane. The Model EMB-550 airplane is the first of a new family of jet airplanes... mounted on aft fuselage pylons. Each engine produces approximately 6,540 pounds of thrust for...

  13. 78 FR 76254 - Special Conditions: Airbus, Model A350-900 Series Airplane; Control Surface Awareness and Mode...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ..., 2000 (65 FR 19477-19478), as well as at http://DocketsInfo.dot.gov/ . Docket: Background documents or... Federal Aviation Administration 14 CFR Part 25 Special Conditions: Airbus, Model A350-900 Series Airplane... Model A350-900 series airplanes. These airplanes will have a novel or unusual design...

  14. 76 FR 9265 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Flight Control System: Control...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-17

    ... Model GVI Airplane; Electronic Flight Control System: Control Surface Position Awareness AGENCY: Federal... transport category airplanes. These design features include an electronic flight control system. The..., include with your comments a self-addressed, stamped postcard on which you have written the docket...

  15. Transonic Flutter Investigation of Models of T-Tail of Blackburn NA-39 Airplane

    NASA Technical Reports Server (NTRS)

    Jones, George W., Jr.; Farmer, Moses G.

    1959-01-01

    A transonic flutter investigation has been made of models of the T-tail of the Blackburn NA-39 airplane. The models were dynamically and elastically scaled from measured airplane data in accordance with criteria which include a flutter safety margin. The investigation was made in the Langley transonic blowdown tunnel and covered a Mach number range from 0.73 to 1.09 at simulated altitudes extending to below sea level. The results of the investigation indicated that, if differences between the measured model and scaled airplane properties are disregarded, the airplane with the normal value of stabilizer pitching stiffness should have a stiffness margin of safety of at least 32 percent at all Mach numbers and altitudes within the flight boundary. However, the airplane with the emergency value of stabilizer pitching stiffness would not have the required margin of safety from symmetrical flutter at Mach numbers greater than about 0.85 at low altitudes. First-order corrections for some differences between the measured model and scaled airplane properties indicated that the airplane with the normal value of stabilizer pitching stiffness would still have an adequate margin of safety from flutter and that the flutter safety margin for the airplane with the emergency value of stabilizer pitching stiffness would be changed from inadequate to adequate. However, the validity of the corrections is questionable.

  16. 76 FR 35324 - Special Conditions: Boeing Model 787 Series Airplanes; Seats With Inflatable Lapbelts

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-17

    ...These special conditions are issued for the Boeing Model 787 series airplane. These airplanes will have a novel or unusual design feature(s) associated with seats with inflatable lapbelts. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the......

  17. 75 FR 8465 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-25

    ... Model MD-90-30 airplanes. That NPRM was published in the Federal Register on September 4, 2009 (74 FR... ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), and (3) Will... airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal...

  18. 78 FR 11609 - Special Conditions: Embraer S.A., Model EMB-550 Airplane; Landing Pitchover Condition

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ...This action proposes special conditions for the Embraer S.A. Model EMB-550 airplane. This airplane will have a novel or unusual design feature(s) associated with landing loads due to the automatic braking system. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These proposed special conditions contain the additional......

  19. 76 FR 35736 - Special Conditions: Gulfstream Aerospace LP (GALP) Model G250 Airplane Automatic Power Reserve...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-20

    .... This airplane will have a novel or unusual design feature associated with go-around performance credit... you wish to review the docket in person, go to the address in the ADDRESSES section of this preamble... regulations. Discussion GALP is proposing to use the APR function of the Model G250 airplane during...

  20. Generic Airplane Model Concept and Four Specific Models Developed for Use in Piloted Simulation Studies

    NASA Technical Reports Server (NTRS)

    Hoffler, Keith D.; Fears, Scott P.; Carzoo, Susan W.

    1997-01-01

    A generic airplane model concept was developed to allow configurations with various agility, performance, handling qualities, and pilot vehicle interface to be generated rapidly for piloted simulation studies. The simple concept allows stick shaping and various stick command types or modes to drive an airplane with both linear and nonlinear components. Output from the stick shaping goes to linear models or a series of linear models that can represent an entire flight envelope. The generic model also has provisions for control power limitations, a nonlinear feature. Therefore, departures from controlled flight are possible. Note that only loss of control is modeled, the generic airplane does not accurately model post departure phenomenon. The model concept is presented herein, along with four example airplanes. Agility was varied across the four example airplanes without altering specific excess energy or significantly altering handling qualities. A new feedback scheme to provide angle-of-attack cueing to the pilot, while using a pitch rate command system, was implemented and tested.

  1. Application of a performance modeling technique to an airplane with variable sweep wings

    NASA Technical Reports Server (NTRS)

    Redin, P. C.

    1981-01-01

    A performance modeling concept previously applied to an F-104F G and a YF-12C airplane was applied to an F-111A airplane. This application extended the concept to an airplane with variable sweep wings. The performance model adequately matched flight test data for maneuvers flown at different wing sweep angles at maximum afterburning and intermediate power settings. For maneuvers flown at less than intermediate power, including dynamic maneuvers, the performance model was not validated because the method used to correlate model and in-flight power setting was not adequate. Individual dynamic maneuvers were matched sucessfully by using adjustments unique to each maneuver.

  2. 76 FR 14819 - Special Conditions: Boeing Model 747-8 Series Airplanes; Stairway Between the Main Deck and Upper...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-18

    ... provided so, when measured along the center lines of each tread and landing, the illumination is not less... conditions for the Boeing Model 747-8 airplane. This airplane will have novel or unusual design features when... airplanes. These design features include a stairway between the main deck and upper deck. These...

  3. 76 FR 31451 - Special Conditions: Boeing Model 747-8 Airplanes; Stairway Between the Main Deck and Upper Deck

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ...These special conditions are issued for Boeing Model 747-8 airplanes. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. These design features include a stairway between the main deck and upper deck. These special conditions contain the additional safety standards that the......

  4. Modeling and analyzing characteristics of self-infrared radiation on airplane-skin

    NASA Astrophysics Data System (ADS)

    Li, Zhaozhao; Wu, Wenyuan; Wu, Chengguo; Yang, Yuntao; Huang, Yanhua; Sunxiaobo, Zhuan

    2016-01-01

    The characteristic of the self-infrared radiation of airplane-skin is very important for the stealth performance of airplane. Based on the theory of the airplane-skin temperature field, the distribution of the atmospheric temperature field and the principle of the black-body radiation function the self-infrared radiation model was established. In specified flight conditions, the influence of the atmospheric temperature, the speed of flight, the emissivity and the sight angle detection on the self-infrared radiation of the airplane skin were analyzed. Through the simulation of infrared radiation, some results under different flight states are obtained. The simulation results show that skin infrared radiation energy mainly concentrate on the far infrared wavebands, and various factors have different effects on the infrared radiation of skin. This conclusion can help reduce the infrared radiation and improve the stealth performance of airplane in the engineering design and the selection of flight conditions.

  5. Evaluation of an aeroelastic model technique for predicting airplane buffet loads

    NASA Technical Reports Server (NTRS)

    Hanson, P. W.

    1973-01-01

    A wind-tunnel technique which makes use of a dynamically scaled aeroelastic model to predict full-scale airplane buffet loads during buffet boundary penetration is evaluated. A 1/8-scale flutter model of a fighter airplane with remotely controllable variable-sweep wings and trimming surfaces was used for the evaluation. The model was flown on a cable-mount system which permitted high lift forces comparable to those in maneuvering flight. Bending moments and accelerations due to buffet were measured on the flutter model and compared with those measured on the full-scale airplane in an independent flight buffet research study. It is concluded that the technique can provide valuable information on airplane buffet load characteristics not available from any other source except flight test.

  6. Simulation model of a twin-tail, high performance airplane

    NASA Technical Reports Server (NTRS)

    Buttrill, Carey S.; Arbuckle, P. Douglas; Hoffler, Keith D.

    1992-01-01

    The mathematical model and associated computer program to simulate a twin-tailed high performance fighter airplane (McDonnell Douglas F/A-18) are described. The simulation program is written in the Advanced Continuous Simulation Language. The simulation math model includes the nonlinear six degree-of-freedom rigid-body equations, an engine model, sensors, and first order actuators with rate and position limiting. A simplified form of the F/A-18 digital control laws (version 8.3.3) are implemented. The simulated control law includes only inner loop augmentation in the up and away flight mode. The aerodynamic forces and moments are calculated from a wind-tunnel-derived database using table look-ups with linear interpolation. The aerodynamic database has an angle-of-attack range of -10 to +90 and a sideslip range of -20 to +20 degrees. The effects of elastic deformation are incorporated in a quasi-static-elastic manner. Elastic degrees of freedom are not actively simulated. In the engine model, the throttle-commanded steady-state thrust level and the dynamic response characteristics of the engine are based on airflow rate as determined from a table look-up. Afterburner dynamics are switched in at a threshold based on the engine airflow and commanded thrust.

  7. 76 FR 37251 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-27

    ...We are adopting a new airworthiness directive (AD) for the products listed above. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD requires that, as of the effective date of the AD, operation of Model FALCON 7X airplanes is prohibited. This AD was prompted by a report of an uncontrolled pitch trim runaway during descent. We are issuing......

  8. 76 FR 17334 - Special Conditions: Boeing Model 747-2G4B Airplane; Certification of Cooktops

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-29

    ...These special conditions are issued for the Boeing Model 747- 2G4B series airplane. This airplane, as modified by Greenpoint Technologies, Inc., will have a novel or unusual design feature associated with the replacement and re-certification of existing cooktops with advanced technology induction coil cooktops in the main deck galleys on two Boeing Model 747-2G4B airplanes. The proposed......

  9. 77 FR 69573 - Special Conditions: Embraer S.A., Model EMB-550 Airplane; Electronic Flight Control System...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-20

    ... Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478), as well as...-135 (76 FR 74654, December 1, 2011), effective January 30, 2012. (This amendment is not in the Model... Model EMB-550 airplane. The Model EMB-550 airplane is the first of a new family of jet...

  10. Scaling behavior of an airplane-boarding model.

    PubMed

    Brics, Martins; Kaupužs, Jevgenijs; Mahnke, Reinhard

    2013-04-01

    An airplane-boarding model, introduced earlier by Frette and Hemmer [Phys. Rev. E 85, 011130 (2012)], is studied with the aim of determining precisely its asymptotic power-law scaling behavior for a large number of passengers N. Based on Monte Carlo simulation data for very large system sizes up to N=2(16)=65536, we have analyzed numerically the scaling behavior of the mean boarding time and other related quantities. In analogy with critical phenomena, we have used appropriate scaling Ansätze, which include the leading term as some power of N (e.g., [proportionality]N(α) for ), as well as power-law corrections to scaling. Our results clearly show that α=1/2 holds with a very high numerical accuracy (α=0.5001±0.0001). This value deviates essentially from α=/~0.69, obtained earlier by Frette and Hemmer from data within the range 2≤N≤16. Our results confirm the convergence of the effective exponent α(eff)(N) to 1/2 at large N as observed by Bernstein. Our analysis explains this effect. Namely, the effective exponent α(eff)(N) varies from values about 0.7 for small system sizes to the true asymptotic value 1/2 at N→∞ almost linearly in N(-1/3) for large N. This means that the variation is caused by corrections to scaling, the leading correction-to-scaling exponent being θ≈1/3. We have estimated also other exponents: ν=1/2 for the mean number of passengers taking seats simultaneously in one time step, β=1 for the second moment of t(b), and γ≈1/3 for its variance. PMID:23679383

  11. 75 FR 64963 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-21

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic.... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category, equipped...

  12. 75 FR 35624 - Airworthiness Directives; Fokker Services B.V. Model F.27 Mark 500 and 600 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or.... Model F.27 Mark 500 and 600 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of.... Applicability (c) This AD applies to Fokker Services B.V. Model F.27 Mark 500 and 600 airplanes; certified...

  13. Ditching Tests of Two Models of the Army B-36 Airplane

    NASA Technical Reports Server (NTRS)

    Fisher, Lloyd J.; Cederborg, Gibson, A.

    1948-01-01

    The ditching characteristics of the Army B-36 airplane were determined by testing 1/20- and 1/30-scale dynamic models in calm water in Langley tank no. 2 and at the outdoor catapult. The scope of the tests consisted of ditching the models at various conditions of simulated damage, landing attitudes, and speeds, with various flap settings using several degrees of restraint of the flap hinges. The ditching behavior was evaluated from recordings of deceleration, length of run, and motions of the models. The results showed that the airplane should be ditched at an attitude of about 9 deg with flaps full down. The probable ditching behavior will be a smooth run with a maximum longitudinal deceleration of 3g to 4g and a landing run of 4 to 5 fuselage lengths. Structural failure of the underside of the fuselage will not seriously affect the behavior of the airplane.

  14. 76 FR 19724 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-08

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively... A300 B4-605R and B4-622R airplanes, Model A300 F4-605R and F4-622R airplanes, and Model A300...

  15. 76 FR 15872 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-22

    ... issued AD 2006-09-07, Amendment 39-14577 (71 FR 25919, May 3, 2006), that applies to Airbus Model A330... FR 8610, February 15, 2011), for Airbus Model A340-200, -300, -500, and -600 series airplanes, to... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3....

  16. 76 FR 53305 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... (76 FR 8610, February 15, 2011), addresses Model A340-200, -300, -500, and -600 series airplanes. (2...-211-AD; Amendment 39-16773; AD 2011-17-09] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330... reference of a certain other publication listed in this AD as of June 7, 2006 (71 FR 25919, May 3,...

  17. 76 FR 27220 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-11

    ...-091-AD; Amendment 39-16688; AD 2011-10-07] RIN 2120-AA64 Airworthiness Directives; Airbus Model A310..., 2011 (76 FR 34). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI... Model A310-203 and A310-222 airplanes: Repetitive detailed inspections for cracking of the leading...

  18. 76 FR 34918 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ... Model 757 and Model 747 airplanes. We have issued AD 2010-23-13, Amendment 39-16502 (75 FR 68688... 12866, (2) Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... proposing this AD to prevent flammable fluid from leaking onto the engine exhaust nozzle which could...

  19. 75 FR 38950 - Airworthiness Directives; The Boeing Company Model 727 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-07

    ..., Amendment 39-16223 (75 FR 13225, March 19, 2010), applies to Boeing Model 737-100, -200, -200C, -300, -400, and, -500 series airplanes. AD 2007-19-07, Amendment 39-15198 (72 FR 60244, October 24, 2007), applies...-16096 (74 FR 62217, November 27, 2009) applies to certain Boeing Model 777-200, -200LR, -300,...

  20. Tests on an airplane model, AEG D I of the Allgemeine Elektricitats Gesellschft, A-G, airplane construction section conducted at the Gottingen Model Testing Laboratory for Aerodynamics

    NASA Technical Reports Server (NTRS)

    Munk, Max; Molthan, Wilhelm

    1923-01-01

    Tests were carried out in the small wind tunnel of the Gottingen establishment on a complete model of the AEG D I airplane. The agreement between the model and the complete airplane applies particularly to the wings, which have ribs cut out of sheet metal and built up in exactly the same manner as in the actual airplane. Various series of tests were carried out with this model in which one or the other of the control surfaces were adjusted to various angles, while the others remained in their neutral positions. During the first three series of tests, the stabilizer was set at a positive angle of 3 degrees, 45' relative to the axis of the engine crankshaft, after which further tests at a 6 degree 30' we made. Finally, the model was tested with the tail group removed. With the elevators set in the prescribed positions, the lift, the drag, and the moments about an axis passing through the center of gravity and perpendicular to the plane of symmetry were measured. All three sets of readings are given as absolute coefficients. Where one of the other control surfaces was deflected from its normal position, the moment produced by that adjustment of the surface was also measured.

  1. 78 FR 66317 - Special Conditions: Learjet Inc. Model LJ-200-1A10; Airplane Fuselage Post-Crash Fire Survivability

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-05

    ... Privacy Act Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478.... Model LJ-200-1A10; Airplane Fuselage Post-Crash Fire Survivability AGENCY: Federal Aviation... conditions for the Learjet Inc. Model LJ-200-1A10 airplane. This airplane will have a novel or unusual...

  2. 76 FR 63823 - Special Conditions: Gulfstream Aerospace LP (GALP) Model G280 Airplane Pilot-Compartment View...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ...-SC for the GALP Model G280 airplane was published in the Federal Register on May 25, 2011 (76 FR... G280 Airplane Pilot-Compartment View--Hydrophobic Coatings in Lieu of Windshield Wipers AGENCY: Federal... unusual design feature associated with the pilot-compartment view through a hydrophobic windshield...

  3. 77 FR 5990 - Special Conditions: Learjet Inc., Model LJ-200-1A10 Airplane, Pilot-Compartment View Through...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... Learjet Model LJ-200-1A10 airplane was published in the Federal Register on October 14, 2011 (76 FR 63851... Airplane, Pilot-Compartment View Through Hydrophobic Windshield Coatings in Lieu of Windshield Wipers... or unusual design feature associated with hydrophobic windshield coatings in lieu of...

  4. 76 FR 41667 - Airworthiness Directives; Hawker Beechcraft Corporation Models B300 and B300C (C-12W) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-15

    ... Corporation Models B300 and B300C (C-12W) airplanes. This AD was prompted by an error found in the take-off... decision speed (V 1 ). This could result in the airplane running out of runway before take-off can be... runway before take-off can be accomplished. We are issuing this AD to correct the unsafe condition...

  5. 78 FR 76731 - Special Conditions: Boeing Model 777-200, -300, and -300ER Series Airplanes; Rechargeable Lithium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-19

    ... battery systems special conditions adopted for the Boeing Model 787 (72 FR 57842; October 11, 2007..., -300, and -300ER series airplanes, was published in the Federal Register on August 22, 2013 (78 FR... Series Airplanes; Rechargeable Lithium Ion Batteries and Battery Systems AGENCY: Federal...

  6. 78 FR 6198 - Special Conditions: Airbus, Model A318-112 Airplane (S/N 3238); Certification of Cooktops

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ...These special conditions are issued for the Airbus Model A318- 112 airplane, serial number (S/N) 3238. This airplane, as modified by Fokker Services B.V., will have a novel or unusual design feature associated with a cooktop installation. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain......

  7. 76 FR 38550 - Special Conditions: Boeing, Model 747-8 Series Airplanes; Door 1 Extendable Length Escape Slide

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-01

    ...These special conditions are issued for Boeing Model 747-8 airplanes. These airplanes will have a novel or unusual design feature associated with an extendable length escape slide. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator......

  8. 76 FR 63159 - Airworthiness Directives; Airbus Model A330-243F Airplanes Equipped With Rolls Royce Trent 700...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-12

    ...-243F Airplanes Equipped With Rolls Royce Trent 700 Series Engines AGENCY: Federal Aviation... AD applies to Airbus Model A330-243F airplanes; certificated in any category; equipped with Rolls... 39-12221 (66 FR 23838, May 10, 2001] * * * is issued to extend the applicability to the...

  9. 75 FR 2433 - Special Conditions: Boeing Model 747-8/-8F Airplanes, Systems and Data Networks Security...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-15

    ... Federal Register on October 2, 2009 (74 FR 50926). No comments were received. Applicability As discussed... Administration 14 CFR Part 25 Special Conditions: Boeing Model 747-8/-8F Airplanes, Systems and Data Networks Security--Protection of Airplane Systems and Data Networks From Unauthorized External Access...

  10. 76 FR 5061 - Special Conditions: TTF Aerospace, LLC, Modification to Boeing Model 767-300 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-28

    ...These special conditions are issued for the Boeing Model 767- 300 series airplane. This airplane, as modified by TTF Aerospace, LLC, will have a novel or unusual design features associated with the pilot lower lobe crew rest module (CRM). The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain......

  11. 78 FR 11553 - Special Conditions: Embraer S.A., Model EMB-550 Airplane; Electronic Flight Control System...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ...These special conditions are issued for the Embraer S.A. Model EMB-550 airplane. This airplane will have a novel or unusual design feature(s) associated with the control surface awareness and mode annunciation of the electronic flight control system. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special......

  12. 76 FR 14794 - Special Conditions: Boeing Model 747-8 Airplanes, Systems and Data Networks Security-Isolation or...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-18

    ... Boeing Model 747-8 airplane was published in the Federal Register on December 9, 2010 (75 FR 76647). No... design features associated with connectivity of the passenger domain computer systems to the airplane... connected networks. The network architecture would be used for a diverse set of functions, including:...

  13. 78 FR 70848 - Special Conditions: Boeing Model 777-200, -300, and -300ER Series Airplanes; Aircraft Electronic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-27

    ... the EFB architecture and existing airplane network systems. The applicable airworthiness regulations... interface to existing aircraft systems. The proposed network architecture is used for a diverse set of... architecture and network configuration in the Boeing Model 777- 200, -300, and -300ER series airplanes...

  14. 75 FR 70090 - Special Conditions: Bombardier Inc. Model CL-600-2E25 Airplane, Operation Without Normal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-17

    ... (APU)-generated electrical power. Service experience on other airplane models with similar electrical... engine generators or APU, is not extremely improbable. Thus, it must be demonstrated that the airplane... landing with inoperative normal engine- and APU-generated electrical power (for example,...

  15. 78 FR 11554 - Special Conditions: Embraer S.A., Model EMB-550 Airplane, Limit Pilot Forces for Sidestick Control

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ...These special conditions for the Embraer S.A. Model EMB-550 airplane. This airplane will have a novel or unusual design feature, specifically sidestick controllers designed to be operated with only one hand. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards......

  16. 77 FR 16910 - Special Conditions: Boeing Model 787 Series Airplanes; Single-place Side-facing Seats With...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-23

    ...These special conditions are issued for the Boeing Model 787 series airplanes. These airplanes have a novel or unusual design feature associated with single-place side-facing seats with inflatable lapbelts. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards......

  17. 78 FR 5146 - Special Conditions: Embraer S.A., Model EMB-550 Airplane, Dive Speed Definition With Speed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-24

    ... Statement can be found in the Federal Register published on April 11, 2000 (65 FR 19477 19478), as well as...., Model EMB-550 Airplane, Dive Speed Definition With Speed Protection System AGENCY: Federal Aviation... category airplanes. These design features include a high-speed protection system. The...

  18. 76 FR 18031 - Airworthiness Directives; Dassault Aviation Model Mystere-Falcon 50 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska... Model Mystere-Falcon 50 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...-Falcon 50 aeroplanes in service, it was detected that two pipes had been swapped in maintenance at...

  19. 76 FR 13924 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... is set at 1 000 flight hours (FH) in the airworthiness limitations section of the Falcon 7X...

  20. 75 FR 71530 - Airworthiness Directives; DASSAULT AVIATION Model MYSTERE-FALCON 50 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-24

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Model MYSTERE-FALCON 50 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...-Falcon 50 aeroplanes in service, it was detected that two pipes of the emergency brake system 2...

  1. 75 FR 3660 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ...We propose to adopt a new airworthiness directive (AD) for all Model 757 airplanes. This proposed AD would require repetitive inspections for corrosion and cracking in the front spar lower chord at the four fastener locations common to the side link support fitting at wing station (WS) 292, and corrective actions if necessary. This proposed AD results from reports that several operators have......

  2. 75 FR 77793 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-14

    ...-26-07, Amendment 39-10250 (62 FR 65352, December 12, 1997), for all Model 747 airplanes. That AD... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Amendment 39-10250 (62 FR 65352, December 12, 1997) and adding the following new AD: The Boeing...

  3. 76 FR 39256 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-06

    ... to the specified products. That NPRM was published in the Federal Register on March 8, 2011 (76 FR... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...

  4. 75 FR 32263 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-08

    ... in the Federal Register on December 30, 2009 (74 FR 69038). That NPRM proposed to correct an unsafe... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant.... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  5. 75 FR 28465 - Airworthiness Directives; Dassault-Aviation Model FALCON 2000 and FALCON 2000EX Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-21

    ... September 24, 2009 (74 FR 48668). That NPRM proposed to correct an unsafe condition for the specified... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Model FALCON 2000 and FALCON 2000EX Airplanes AGENCY: Federal Aviation Administration (FAA),...

  6. 76 FR 30043 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ..., we issued AD 2006-23-15, Amendment 39-14827 (71 FR 66657, November 16, 2006). That AD applies to the... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will... Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  7. 76 FR 18964 - Airworthiness Directives; Costruzioni Aeronautiche Tecnam srl Model P2006T Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-06

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Aeronautiche Tecnam srl Model P2006T Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... the nose landing gear hydraulic actuator cap. The manufacturer has identified the root cause of...

  8. 75 FR 61999 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-07

    ..., amendment 39-12330 (66 FR 38350, July 24, 2001), for certain Boeing Model 767 airplanes. That AD requires... AD 2001-14-19). Drain tube replacement (new Between 7 and 11, 1,117 Between $1,712 356 Between $609... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and...

  9. 76 FR 21815 - Airworthiness Directives; The Boeing Company Model 737 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-19

    ...We are revising an earlier proposed airworthiness directive (AD) for certain Model 737 airplanes. The original NPRM would have required repetitive inspections, lubrications, and repetitive repairs/ overhauls of the ball nut and ballscrew and attachment (Gimbal) fittings for the trim actuator of the horizontal stabilizer; various installation(s); and corrective actions if necessary; as......

  10. 75 FR 35616 - Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-23

    ... airplane. DATES: This AD becomes effective on July 28, 2010. As of April 21, 2006 (71 FR 19994, April 19... (74 FR 39243). The NPRM proposed to supersede AD 2006-08-09 to clarify the SNs of the Models AT-802... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a...

  11. 76 FR 24358 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-02

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation... December 30, 2010 (75 FR 82327). That NPRM proposed to correct an unsafe condition for the specified... of civil aircraft in air commerce by prescribing regulations for practices, methods, and...

  12. 76 FR 64847 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-19

    .... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of..., 2011. ADDRESSES: You may send comments by any of the following methods: Federal eRulemaking Portal: Go... of civil aircraft in air commerce by prescribing regulations for practices, methods, and...

  13. 76 FR 64788 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model 4101 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-19

    ... (Operations) Limited Model 4101 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... by reference of certain other publications listed in this AD as of June 11, 2009 (74 FR 21246, May 7... April 8, 2011 (76 FR 19716), and proposed to supersede AD 2009-10-02, Amendment 39-15897 (74 FR...

  14. 75 FR 52652 - Airworthiness Directives; Airbus Model A300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-27

    ... Directives; Airbus Model A300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... proposed AD by October 12, 2010. ADDRESSES: You may send comments by any of the following methods: Federal... air commerce by prescribing regulations for practices, methods, and procedures the Administrator...

  15. 75 FR 39863 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ... Directives; Airbus Model A310 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION..., 2010. ADDRESSES: You may send comments by any of the following methods: Federal eRulemaking Portal: Go... proposed AD. Discussion On April 20, 2006, we issued AD 2006-09-05, Amendment 39-14575 (71 FR 25921, May...

  16. 76 FR 64849 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-19

    .... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... comments by any of the following methods: ] Federal eRulemaking Portal: Go to http://www.regulations.gov... flight of civil aircraft in air commerce by prescribing regulations for practices, methods,...

  17. 76 FR 28639 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-18

    .... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... was published in the Federal Register on February 23, 2011 (76 FR 9982). The MCAI states: During... practices, methods, and procedures the Administrator finds necessary for safety in air commerce....

  18. 75 FR 82327 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  19. 76 FR 67633 - Airworthiness Directives; Dassault Aviation Model Mystere-Falcon 50 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Model Mystere-Falcon 50 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice...

  20. 75 FR 38064 - Airworthiness Directives; Bombardier, Inc. Model DHC-8 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-01

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will.... Model DHC-8 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... will be no charge for these costs. As we do not control warranty coverage for affected parties,...

  1. 76 FR 27615 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-12

    ... Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR... Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA... coverage for affected parties, some parties may incur costs higher than estimated here. Based on...

  2. 76 FR 50403 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-15

    ... products. That NPRM was published in the Federal Register on May 12, 2011 (76 FR 27615). That NPRM proposed... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant...; Bombardier, Inc. Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA),...

  3. 76 FR 19719 - Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-08

    ... Order 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR... Aerosystems Model SAAB 2000 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... charge for these parts. As we do not control warranty coverage for affected parties, some parties...

  4. 76 FR 41665 - Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-15

    ... specified products. That NPRM was published in the Federal Register on April 8, 2011 (76 FR 19719). That... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Aerosystems Model SAAB 2000 Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  5. 75 FR 61987 - Airworthiness Directives; Bombardier, Inc. Model DHC-8 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-07

    ... was published in the Federal Register on July 1, 2010 (75 FR 38064). That NPRM proposed to correct an... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or.... Model DHC-8 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation...

  6. 75 FR 12710 - Airworthiness Directives; Bombardier, Inc., Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-17

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will...., Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... costs. As we do not control warranty coverage for affected parties, some parties may incur costs...

  7. 75 FR 66655 - Airworthiness Directives; PILATUS Aircraft Ltd. Model PC-7 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-29

    ... Register on August 26, 2010 (75 FR 52482). That NPRM proposed to correct an unsafe condition for the...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a... Ltd. Model PC-7 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...

  8. 75 FR 32863 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-10

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes AGENCY: Federal Aviation Administration (FAA... receive comments by July 26, 2010. Affected ADs (b) None. Applicability (c) This AD applies to...

  9. 75 FR 50869 - Airworthiness Directives; Pilatus Aircraft Ltd. Model PC-12/47E Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... Register on June 10, 2010 (75 FR 32863). That NPRM proposed to correct an unsafe condition for the... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant... Ltd. Model PC-12/47E Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  10. 75 FR 12150 - Airworthiness Directives; PILATUS Aircraft Ltd. Model PC-7 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... Ltd. Model PC-7 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation.... Relevant Service Information PILATUS Aircraft Ltd. has issued PILATUS PC-7 Service Bulletin No....

  11. 75 FR 52482 - Airworthiness Directives; PILATUS Aircraft Ltd. Model PC-7 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-26

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Ltd. Model PC-7 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation... Pilatus Aircraft Ltd. has issued PC-7 Service Bulletin No. 57-015, Rev. No. 1, date July 23, 2010....

  12. 75 FR 17879 - Airworthiness Directives; The Cessna Aircraft Company Model 750 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-08

    ...-14817 (71 FR 65047, November 7, 2006), for all The Cessna Aircraft Company Model 750 airplanes. That AD...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have... Amendment 39-14817 (71 FR 65047, November 7, 2006) and adding the following new AD: The Cessna...

  13. 75 FR 77790 - Airworthiness Directives; The Boeing Company Model 767 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-14

    ... 23, 2000, we issued AD 2000-11-06, amendment 39-11754 (65 FR 34928, June 1, 2000), for all Model 767 airplanes. (A correction of the rule was published in the Federal Register on August 1, 2000 (65 FR 46862...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not...

  14. 75 FR 5690 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A. Model P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-04

    ...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a... INDUSTRIES S.p.A. Model P- 180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... specified products. That NPRM was published in the Federal Register on November 19, 2009 (74 FR 59941)....

  15. 76 FR 20501 - Airworthiness Directives; Fokker Services B.V. Model F.27 Mark 050 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-13

    ... and Maintenance and Inspection Requirements'' (66 FR 23086, May 7, 2001). In addition to new... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Services B.V. Model F.27 Mark 050 Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  16. 75 FR 36577 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-28

    ...-07-04, Amendment 39-15863 (74 FR 14460, March 31, 2009), for certain Model MD-90-30 airplanes. That... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Amendment 39-15863 (74 FR 14460, March 31, 2009) and adding the following new AD: McDonnell...

  17. 78 FR 6195 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Flight Envelope Protection...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-30

    ... Embraer S.A. Model EMB-550 airplanes was published in the Federal Register on November 9, 2012, (77 FR... Protection: Performance Credit for Automatic Takeoff Thrust Control System (ATTCS) During Go-Around AGENCY... design feature associated with the use of an Automatic Takeoff Thrust Control System (ATTCS) during...

  18. 76 FR 13080 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-10

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant.... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... examining the MCAI in the AD docket. Relevant Service Information Bombardier has issued Repair Drawing...

  19. 75 FR 8279 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-24

    ...-06, amendment 39-14503 (71 FR 12125, March 9, 2006). The original NPRM applied to certain Model 747 airplanes. The original NPRM was published in the Federal Register on September 23, 2008 (73 FR 54751). The...) amends Sec. 39.13 by removing amendment 39-14503 (71 FR 12125, March 9, 2006) and adding the...

  20. 76 FR 9495 - Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-18

    ..., amendment 39-16412 (75 FR 52255, August 25, 2010), for all Air Tractor Models AT-802 and AT- 802A airplanes... statutes, to fit regulatory and informational requirements to the scale of the businesses, organizations... actions. The RFA covers a wide range of small entities, including small businesses,...

  1. 76 FR 19710 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-08

    ...-10-11, amendment 39-15517 (73 FR 25974, May 8, 2008), for all Model 757 series airplanes. That AD... a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26...), 40113, 44701. Sec. 39.13 2. The FAA amends Sec. 39.13 by removing amendment 39-15517 (73 FR 25974, May...

  2. 75 FR 15328 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... certain Model 757 airplanes. That NPRM was published in the Federal Register on September 29, 2009 (74 FR... ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), and (3) Will... oxygen system installed under the oxygen mask stowage box at a flightcrew and supernumerary oxygen...

  3. 78 FR 11560 - Special Conditions: Embraer S.A., Model EMB-550 Airplane; Electronic Flight Control System...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ...-135 (76 FR 74654, December 1, 2011), effective January 30, 2012. (This amendment is not in the Model.... Model EMB-550 airplanes was published in the Federal Register on November 20, 2012 (77 FR 69573)....

  4. 75 FR 9515 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes and Model A340-200 and -300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-03

    ...-16202; AD 2010-04-09] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 Series Airplanes and Model A340-200 and -300 Series Airplanes Correction In rule document 2010-3119 beginning on page 7940 in..., under the header ``Applicability,'' item (1) should read: ``(1) Airbus Model A330-201, - 202, -203,...

  5. Rubber airplane: Constraint-based component-modeling for knowledge representation in computer-aided conceptual design

    NASA Technical Reports Server (NTRS)

    Kolb, Mark A.

    1990-01-01

    Viewgraphs on Rubber Airplane: Constraint-based Component-Modeling for Knowledge Representation in Computer Aided Conceptual Design are presented. Topics covered include: computer aided design; object oriented programming; airfoil design; surveillance aircraft; commercial aircraft; aircraft design; and launch vehicles.

  6. High-Speed Tests of a Model Twin-Engine Low-Wing Transport Airplane

    NASA Technical Reports Server (NTRS)

    Becker, John V; LEONARD LLOYD H

    1942-01-01

    Report presents the results of force tests made of a 1/8-scale model of a twin-engine low-wing transport airplane in the NACA 8-foot high-speed tunnel to investigate compressibility and interference effects of speeds up to 450 miles per hour. In addition to tests of the standard arrangement of the model, tests were made with several modifications designed to reduce the drag and to increase the critical speed.

  7. 75 FR 28475 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-21

    ...-122-AD; Amendment 39-16304; AD 2010-10-25] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-300 Series Airplanes AGENCY: Federal Aviation... products. That NPRM was published in the Federal Register on October 19, 2009 (74 FR 53440). That...

  8. 75 FR 7940 - Airworthiness Directives; Airbus Model A330-200 Series Airplanes and Model A340-200 and -300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ...-138-AD; Amendment 39-16202; AD 2010-04-09] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 Series Airplanes and Model A340-200 and -300 Series Airplanes AGENCY: Federal Aviation... products. That NPRM was published in the Federal Register on December 1, 2009 (74 FR 62713). That...

  9. 75 FR 32266 - Airworthiness Directives; Airbus Model A300 Series Airplanes; Airbus Model A300 B4-600, B4-600R...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-08

    ... Register on February 25, 2010 (75 FR 8549). That NPRM proposed to correct an unsafe condition for the... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant... Series Airplanes; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model...

  10. Fuel-efficient cruise performance model for general aviation piston engine airplanes

    SciTech Connect

    Parkinson, R.C.H.

    1982-01-01

    The uses and limitations of typical Pilot Operating Handbook cruise performance data, for constructing cruise performance models suitable for maximizing specific range, are first examined. These data are found to be inadequate for constructing such models. A new model of General Aviation piston-prop airplane cruise performance is then developed. This model consists of two subsystem models: the airframe-propeller-atmosphere subsystem model; and the engine-atmosphere subsystem model. The new model facilitates maximizing specific range; and by virtue of its simplicity and low volume data storage requirements, appears suitable for airborne microprocessor implementation.

  11. Recent Dynamic Measurements and Considerations for Aerodynamic Modeling of Fighter Airplane Configurations

    NASA Technical Reports Server (NTRS)

    Brandon, Jay M.; Foster, John V.

    1998-01-01

    As airplane designs have trended toward the expansion of flight envelopes into the high angle of attack and high angular rate regimes, concerns regarding modeling the complex unsteady aerodynamics for simulation have arisen. Most current modeling methods still rely on traditional body axis damping coefficients that are measured using techniques which were intended for relatively benign flight conditions. This paper presents recent wind tunnel results obtained during large-amplitude pitch, roll and yaw testing of several fighter airplane configurations. A review of the similitude requirements for applying sub-scale test results to full-scale conditions is presented. Data is then shown to be a strong function of Strouhal number - both the traditional damping terms, but also the associated static stability terms. Additionally, large effects of sideslip are seen in the damping parameter that should be included in simulation math models. Finally, an example of the inclusion of frequency effects on the data in a simulation is shown.

  12. 76 FR 22059 - Airworthiness Directives; The Boeing Company Model 757 Airplanes, and Model 767-200, 767-300, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ...-09-07, Amendment 39-15488 (73 FR 21811, April 23, 2008), for all Boeing Model 757 airplanes and Model... a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26...-07, Amendment 39-15488 (73 FR 21811, April 23, 2008), and adding the following new AD: The...

  13. 77 FR 15291 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); 3. Will not... B4-622R airplanes; Model A300 C4-605R Variant F airplanes; and Model A300 F4-600R series airplanes... B4-603, B4-605R, and B4- 622R airplanes; Model A300 C4-605R Variant F airplanes; and Model A300...

  14. 78 FR 63847 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Airplane Electronic System Security...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-25

    ... be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478), as well as at http... design feature associated with the architecture and connectivity capabilities of the airplanes' computer systems and networks, which may allow access to or by external computer systems and networks....

  15. 76 FR 69685 - Airworthiness Directives; The Boeing Company Model 767-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-09

    ...We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 767-200 and -300 series airplanes. This proposed AD was prompted by reports of cracks in the inner chords at both left-side and right-side stations 859.5, 883.5, and 903.5. This proposed AD would require repetitive inspections of the frame inner chord transition radius for cracks, and related investigative......

  16. 75 FR 75878 - Airworthiness Directives; Airbus Model A318-111 and A318-112 Airplanes and Model A319, A320, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2008-0670; Directorate Identifier 2007-NM...-111 and A318-112 Airplanes and Model A319, A320, and A321 Series Airplanes AGENCY: Federal Aviation... airworthiness information (MCAI) originated by an aviation authority of another country to identify and...

  17. 78 FR 49655 - Special Conditions: Embraer, S.A., Model EMB-550 Airplane; Side-Facing Seats; Installation of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-15

    ...These special conditions are issued for the Embraer S.A. Model EMB-550 airplane. This airplane will have a novel or unusual design feature associated with multiple-place and single-place side-facing seats and the installation of airbag systems in the shoulder belts. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These......

  18. 75 FR 6849 - Airworthiness Directives; Airbus Model A310-221, -222, -322, -324, and -325 Airplanes, and Model...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-12

    ... July 16, 2009 (74 FR 34516). That NPRM proposed to correct an unsafe condition for the specified... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or...-221, -222, -322, - 324, and -325 Airplanes, and Model A300 B4-620, B4-622, B4-622R, and...

  19. A fuel-efficient cruise performance model for general aviation piston engine airplanes. Ph.D. Thesis. Final Report

    NASA Technical Reports Server (NTRS)

    Parkinson, R. C. H.

    1983-01-01

    A fuel-efficient cruise performance model which facilitates maximizing the specific range of General Aviation airplanes powered by spark-ignition piston engines and propellers is presented. Airplanes of fixed design only are considered. The uses and limitations of typical Pilot Operating Handbook cruise performance data, for constructing cruise performance models suitable for maximizing specific range, are first examined. These data are found to be inadequate for constructing such models. A new model of General Aviation piston-prop airplane cruise performance is then developed. This model consists of two subsystem models: the airframe-propeller-atmosphere subsystem model; and the engine-atmosphere subsystem model. The new model facilitates maximizing specific range; and by virtue of its implicity and low volume data storge requirements, appears suitable for airborne microprocessor implementation.

  20. Determination of airplane model structure from flight data by using modified stepwise regression

    NASA Technical Reports Server (NTRS)

    Klein, V.; Batterson, J. G.; Murphy, P. C.

    1981-01-01

    The linear and stepwise regressions are briefly introduced, then the problem of determining airplane model structure is addressed. The MSR was constructed to force a linear model for the aerodynamic coefficient first, then add significant nonlinear terms and delete nonsignificant terms from the model. In addition to the statistical criteria in the stepwise regression, the prediction sum of squares (PRESS) criterion and the analysis of residuals were examined for the selection of an adequate model. The procedure is used in examples with simulated and real flight data. It is shown that the MSR performs better than the ordinary stepwise regression and that the technique can also be applied to the large amplitude maneuvers.

  1. 76 FR 38069 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively...-622, B4-605R, B4-622R, F4-605R, F4-622R, and C4-605R Variant F airplanes; and Model A310-203,...

  2. Determination of airplane model structure from flight data using splines and stepwise regression

    NASA Technical Reports Server (NTRS)

    Klein, V.; Batterson, J. G.

    1983-01-01

    A procedure for the determination of airplane model structure from flight data is presented. The model is based on a polynomial spline representation of the aerodynamic coefficients, and the procedure is implemented by use of a stepwise regression. First, a form of the aerodynamic force and moment coefficients amenable to the utilization of splines is developed. Next, expressions for the splines in one and two variables are introduced. Then the steps in the determination of an aerodynamic model structure and the estimation of parameters are discussed briefly. The focus is on the application to flight data of the techniques developed.

  3. 75 FR 51698 - Airworthiness Directives; Airbus Model A310 Series Airplanes; and Model A300 B4-600, A300 B4-600R...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-23

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... Series Airplanes; and Model A300 B4-600, A300 B4-600R, A300 F4-600R Series Airplanes, and Model A300 C4... B4-601, B4-603, B4-620, B4-622, B4-605R, B4-622R, F4-605R, and F4-622R airplanes; Model A300...

  4. 76 FR 441 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-05

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively..., B4-622R, F4-605R, F4-622R, and C4-605R Variant F airplanes, certificated in any category, all...

  5. 76 FR 8319 - Special Conditions: Gulfstream Model GVI Airplane; Design Roll Maneuver Requirement for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-14

    ... Roll Maneuver Requirement for Electronic Flight Controls AGENCY: Federal Aviation Administration (FAA... airplanes. These design features include an electronic flight control system that provides roll control of the airplane through pilot inputs to the flight ] computers. These proposed special conditions...

  6. 76 FR 17022 - Special Conditions: Gulfstream Model GVI Airplane; High Incidence Protection

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-28

    ...These special conditions are issued for the Gulfstream GVI airplane. This airplane will have novel or unusual design features when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes associated with the use of high incidence protection. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for......

  7. 76 FR 41142 - Special Conditions; Cessna Aircraft Company Model M680 Airplane; Lithium-ion Battery Installations

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Aircraft Company Model M680 Airplane; Lithium-ion Battery Installations AGENCY: Federal Aviation... design feature associated with Lithium-ion batteries. The applicable airworthiness regulations do not...) T00012WI for installation of Lithium-ion batteries in the Model 680. The Model 680 is a twin-engine,...

  8. Subsonic wind tunnel investigation of a twin-engine attack airplane model having nonmetric powered nacelles

    NASA Technical Reports Server (NTRS)

    Lockwood, V. E.; Matarazzo, A.

    1974-01-01

    A 1/10-scale powered model of a twin-engine attack airplane was investigated in the Langley high-speed 7- by 10-foot tunnel. The study was made at several Mach numbers between 0.225 and 0.75 which correspond to Reynolds numbers, based on the mean aerodynamic chord, of 1.35 million and 3.34 million. Unheated compressed air was used for jet simulation in the nonmetric engine nacelles which were located ahead of and above the horizontal stabilizer.

  9. A statistical mechanics model for free-for-all airplane passenger boarding

    SciTech Connect

    Steffen, Jason H.; /Fermilab

    2008-08-01

    I discuss a model for free-for-all passenger boarding which is employed by some discount air carriers. The model is based on the principles of statistical mechanics where each seat in the aircraft has an associated energy which reflects the preferences of travelers. As each passenger enters the airplane they select their seats using Boltzmann statistics, proceed to that location, load their luggage, sit down, and the partition function seen by remaining passengers is modified to reflect this fact. I discuss the various model parameters and make qualitative comparisons of this passenger boarding model with those that involve assigned seats. The model can be used to predict the probability that certain seats will be occupied at different times during the boarding process. These results might provide a useful description of this boarding method. The model is a relatively unusual application of undergraduate level physics and describes a situation familiar to many students and faculty.

  10. Longitudinal Stability and Stalling Characteristics of a 1/8.33-Scale Model of the Republic XF-12 Airplane

    NASA Technical Reports Server (NTRS)

    Pepper, Edward; Foster, Gerald V.

    1946-01-01

    The XF-12 airplane is a high performance, photo-reconnaissance aircraft designed by the Republic Aviation Corporation for Army Air Forces. A series of tests of a 1/8.33-scale powered model was conducted in the Langley 9-foot pressure tunnel to obtain information relative to the aerodynamic design of the airplane. This report presents the results of tests to determine the static longitudinal stability and stalling characteristics of the model. From this investigation it was indicated that the airplane will possess a positive static margin for all probable flight conditions. The stalling characteristics are considered satisfactory in that the stall initiates near the root section and progresses toward the tips. Early root section stalling occurs, with the flaps retracted and may cause undesirable tail buffeting and erratic elevator control in the normal flight range. From considerations of sinking speed landing flap deflections of 40 degrees may be preferable to 55 degrees of 65 degrees.

  11. 75 FR 904 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-07

    ... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Directive (AD) 2009-21-08, which applies to PIAGGIO AERO INDUSTRIES S.p.A. (Piaggio) Model PIAGGIO P-180... as AD 2009-21-08. As of December 14, 2009 (74 FR 57561, November 9, 2009), the Director of...

  12. 75 FR 10696 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-09

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will.... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION...) None. Applicability (c) This AD applies to Fokker Services B.V. Model F.28 Mark 0070 and Mark...

  13. 75 FR 16660 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-02

    ...-064-AD; Amendment 39-16252; AD 2010-07-07] RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM..., 2010 (75 FR 89). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI... air commerce by prescribing regulations for practices, methods, and procedures the Administrator...

  14. 75 FR 13239 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-19

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM... methods: Federal eRulemaking Portal: Go to http://www.regulations.gov . Follow the instructions for... practices, methods, and procedures the Administrator finds necessary for safety in air commerce....

  15. 76 FR 30295 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-25

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM... proposed AD by July 11, 2011. ADDRESSES: You may send comments by any of the following methods: Federal e... air commerce by prescribing regulations for practices, methods, and procedures the Administrator...

  16. 76 FR 4216 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ...-041-AD; Amendment 39-16575; AD 2011-02-02] RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM... (73 FR 54067, September 18, 2008), the Director of the Federal Register approved the incorporation by... September 28, 2010 (75 FR 59658), and proposed to supersede AD 2008-19-06, Amendment 39- 15673 (73 FR...

  17. 75 FR 59658 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-28

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM... may send comments by any of the following methods: Federal eRulemaking Portal: Go to http://www... proposed AD. Discussion On September 8, 2008, we issued AD 2008-19-06, Amendment 39-15673 (73 FR...

  18. 75 FR 89 - Airworthiness Directives; SOCATA Model TBM 700 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-04

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; SOCATA Model TBM... following methods: Federal eRulemaking Portal: Go to http://www.regulations.gov . Follow the instructions..., methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation...

  19. 76 FR 39248 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-06

    ... products. That NPRM was published in the Federal Register on December 10, 2010 (75 FR 76926). That NPRM... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes...

  20. 76 FR 28914 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-19

    ... Order 12866, 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR... of the rudder system design. Rudder pedal sensitivity on Model A300-600 and A310 series airplanes is greater than that of other transport category airplane designs. Such rudder control sensitivity...

  1. Ditching Investigation of a 1/18-Scale Model of the North American B-45 Airplane

    NASA Technical Reports Server (NTRS)

    Fisher, Lloyd J.; Thompson, William C.

    1949-01-01

    An investigation of a 1/18-scale dynamically similar model of the North American B-45 airplane was made to observe the ditching behavior and determine the proper landing technique to be used in an emergency water landing. Various conditions of damage were simulated to determine the behavior which probably would occur in a full-scale ditching. The behavior of the model was determined from high-speed motion-picture records, time-history acceleration records, and visual observations. It was concluded that the airplane should be ditched at the maximum nose-high attitude with the landing flaps full down for minimum landing speed. During the ditching, the nose-wheel and bomb-bay doors probably will be torn away and the rear of the fuselage flooded. A violent dive will very likely occur. Longitudinal decelerations of approximately 5g and vertical accelerations of approximately -6g (including gravity) will be experienced near the pilots' compartment. Ditching braces installed in the bomb bay will tend to improve the behavior slightly but will be torn away along with the bomb-bay doors. A hydroflap installed ahead of the nose-wheel doors will eliminate the dive and failure of the nose-wheel doors, and substantially reduce the motions and accelerations.

  2. Free-to-Roll Testing of Airplane Models in Wind Tunnels

    NASA Technical Reports Server (NTRS)

    Capone, Francis J.; Owens, D. Bruce; Hall, Robert M.

    2007-01-01

    A free-to-roll (FTR) test technique and test rig make it possible to evaluate both the transonic performance and the wingdrop/ rock behavior of a high-strength airplane model in a single wind-tunnel entry. The free-to-roll test technique is a single degree-of-motion method in which the model is free to roll about the longitudinal axis. The rolling motion is observed, recorded, and analyzed to gain insight into wing-drop/rock behavior. Wing-drop/rock is one of several phenomena symptomatic of abrupt wing stall. FTR testing was developed as part of the NASA/Navy Abrupt Wing Stall Program, which was established for the purposes of understanding and preventing significant unexpected and uncommanded (thus, highly undesirable) lateral-directional motions associated with wing-drop/rock, which have been observed mostly in fighter airplanes under high-subsonic and transonic maneuvering conditions. Before FTR testing became available, wingrock/ drop behavior of high-performance airplanes undergoing development was not recognized until flight testing. FTR testing is a reliable means of detecting, and evaluating design modifications for reducing or preventing, very complex abrupt wing stall phenomena in a ground facility prior to flight testing. The FTR test rig was designed to replace an older sting attachment butt, such that a model with its force balance and support sting could freely rotate about the longitudinal axis. The rig (see figure) includes a rotary head supported in a stationary head with a forward spherical roller bearing and an aft needle bearing. Rotation is amplified by a set of gears and measured by a shaft-angle resolver; the roll angle can be resolved to within 0.067 degrees at a rotational speed up to 1,000 degrees/s. An assembly of electrically actuated brakes between the rotary and stationary heads can be used to hold the model against a rolling torque at a commanded roll angle. When static testing is required, a locking bar is used to fix the rotating

  3. 78 FR 78705 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ...We are superseding Airworthiness Directive (AD) 2010-24-07 for all Airbus Model A318 series airplanes, Model A319 series airplanes, Model A320 series airplanes, and Model A321 series airplanes. AD 2010- 24-07 required repetitive inspections of the 80VU rack lower lateral fittings for damage, repetitive inspections of the 80VU rack lower central support for cracking, and corrective action if......

  4. 77 FR 12989 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-05

    ...We are adopting a new airworthiness directive (AD) for certain Airbus Model A330-200 series airplanes; Model A330-300 series airplanes; Model A340-200 series airplanes; and Model A340-300 series airplanes. This AD was prompted by a report that three failures of the retraction bracket occurred during fatigue testing before the calculated life limit of the main landing gear (MLG). This AD......

  5. Spin-Tunnel Investigation of a 1/28-Scale Model of a Subsonic Attack Airplane

    NASA Technical Reports Server (NTRS)

    Lee, Henry A.; Healy, Frederick M.

    1964-01-01

    An investigation has been made of a 1/28-scale model of the Grumman A-6A airplane in the Langley spin tunnel. The erect spin and recovery characteristics of the model were determined for the flight design gross weight loading and for a loading with full internal fuel and empty external wing fuel tanks. The effects of extending slats and deflecting flaps were investigated. Inverted-spin and recovery characteristics of the model were determined for the flight design gross weight loading. The size of the spin-recovery tail parachute necessary to insure satisfactory spin-recovery was determined, and the effect of firing wing-mounded rockets during spins was investigated.

  6. Spin tests of a 1/20-scale model of the XP-39 airplane, 15 March 1939

    NASA Technical Reports Server (NTRS)

    Donlan, C. J.

    1976-01-01

    The tests were performed to determine the spinning characteristics of a 1/20-scale model of the Bell XP-39 airplane. Effects of loading changes and of various control dispositions were studied. Subsequent tests were performed to determine the effect of a change in wing dihedral.

  7. 76 FR 42607 - Airworthiness Directives; The Boeing Company Model 767-200, -300, and -400ER Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-19

    ...-15818 (74 FR 8717, February 26, 2009), for certain Model 767-200, -300, and - 400ER series airplanes...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect... FR 8717, February 26, 2009), and adding the following new AD: The Boeing Company: Docket No....

  8. 75 FR 27966 - Airworthiness Directives; The Boeing Company Model 747-400 and 747-400D Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... 12866, 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... certain Model 747-400 and 747-400D series airplanes. This proposed AD would ] require installing aluminum... November 4, 2009. The service bulletin describes procedures for installing aluminum gutter...

  9. 75 FR 27668 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-18

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Services B.V. Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... cause of the MLG extension problem was the (partially) blocked hydraulic return line from the...

  10. 76 FR 4056 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-24

    ...-15281 (72 FR 67843, December 3, 2007). AD 2007-24-15 requires correcting the fuselage drain system and... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034... Model PIAGGIO P-180 airplanes. AD 2007-24-15, Amendment 39-15281 (72 FR 67843, December 3, 2007)...

  11. 76 FR 16582 - Airworthiness Directives; Airbus Model A318, A319, A320, and A321 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-24

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Model A318, A319, A320, and A321 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... continuing airworthiness information (MCAI) originated by an aviation authority of another country...

  12. 76 FR 40286 - Airworthiness Directives; Empresa Brasileira de Aeronáutica S.A. (EMBRAER) Model EMB-505 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-08

    ... not control warranty coverage for affected individuals. As a result, we have included all costs in our... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... de Aeron utica S.A. (EMBRAER) Model EMB-505 Airplanes AGENCY: Federal Aviation Administration...

  13. 75 FR 53609 - Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-01

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-500 Airplanes AGENCY: Federal Aviation... docket. Relevant Service Information Empresa Brasileira de Aeron utica S.A. (EMBRAER) has issued...

  14. 75 FR 2060 - Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-14

    ... Register on July 15, 2009 (74 FR 34276). That NPRM proposed to correct an unsafe condition for the... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes AGENCY: Federal Aviation Administration...

  15. 75 FR 7409 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-19

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of..., Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,...

  16. 75 FR 22512 - Airworthiness Directives; Piaggio Aero Industries S.p.A. Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-29

    ... Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant economic impact, positive or... Industries S.p.A. Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... ] Register on February 19, 2010 (75 FR 7409). That NPRM proposed to correct an unsafe condition for...

  17. 75 FR 43095 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A. Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-23

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... INDUSTRIES S.p.A. Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of..., Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,...

  18. 75 FR 67639 - Airworthiness Directives; Piaggio Aero Industries S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-03

    ... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or... Industries S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... maintenance requirements and/or airworthiness limitations developed by Piaggio Aero Industries S.p.A....

  19. 76 FR 10224 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-24

    ... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... this AD, contact Piaggio Aero Industries S.p.A., Via Cibrario, 4-16154 Genoa, Italy; phone: +39 010... NPRM was published in the Federal Register on November 3, 2010 (75 FR 67639). That NPRM proposed...

  20. 76 FR 7694 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-11

    ... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The..., amendment 39-16582 (76 FR 4056, January 24, 2011), currently requires an immediate functional test of...

  1. 76 FR 36980 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-24

    ... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... . SUPPLEMENTARY INFORMATION: Airworthiness Directive 2011-09-51, Amendment 39-16697 (76 FR 27872, May 13, 2011... Internet at http://www.regulations.gov ; or in person at the Docket Management Facility between 9 a.m....

  2. 75 FR 43101 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-23

    ... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except....regulations.gov ; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday...

  3. 75 FR 68172 - Airworthiness Directives; Piaggio Aero Industries S.p.A. Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-05

    ...'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a... Industries S.p.A. Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... identified in this AD, contact Piaggio Aero Industries S.p.a., Via Cibrario, 4-16154 Genoa, Italy; phone:...

  4. 75 FR 63060 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A. Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant... INDUSTRIES S.p.A. Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Register on July 23, 2010 (75 FR 43095). That NPRM proposed to correct an unsafe condition for...

  5. 75 FR 47734 - Airworthiness Directives; Piaggio Aero Industries S.p.A. Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-09

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... Industries S.p.A. Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday...

  6. 76 FR 54403 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-01

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday,...

  7. 75 FR 43105 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-23

    ... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday...

  8. 75 FR 63062 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-14

    ... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and (3) Will not have a significant... INDUSTRIES S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... (75 FR 43101). That NPRM proposed to correct an unsafe condition for the specified products. The...

  9. Investigations of Tumbling Characteristics of a 1/20-Scale Model of the Northrop N-9M Airplane

    NASA Technical Reports Server (NTRS)

    MacDougall, George F., Jr.

    1947-01-01

    The tumbling characteristics of a 1/20-scale model of the Northrop N-9M airplane have been determined in the Langley 20-foot free-spinning tunnel for various configurations and loading conditions of the model. The investigation included tests to determine whether recovery from a tumble could be effected by the use of parachutes. An estimation of the forces due to acceleration acting on the pilot during a tumble was made. The tests were performed at an equivalent test altitude of 15,000 feet. The results of the model tests indicate that if the airplane is stalled with its nose up and near the vertical, or if an appreciable amount of pitching rotation is imparted to the airplane as through the action of a strong gust, the airplane will either tumble or oscillate in pitch through a range of angles of the order of +/-120 deg. The normal flying controls will probably be ineffective in preventing or in terminating the tumbling motion. The results of the model tests indicate that deflection of the landing flaps full down immediately upon the initiation of pitching rotation will tend to prevent the development of a state of tumbling equilibrium. The simultaneous opening of two-7-foot diameter parachutes having drag coefficients of 0.7, one parachute attached to the rear portion of each wing tip with a towline between 10 and 30 feet long, will provide recovery from a tumble. The accelerations acting on the pilot during a tumble will be dangerous.

  10. 78 FR 11562 - Special Conditions: Embraer S.A., Model EMB-550 Airplanes; Flight Envelope Protection: High Speed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ... Embraer S.A. Model EMB-550 airplanes was published in the Federal Register on November 20, 2012 (77 FR... electronic flight control system which contains fly-by-wire control laws, including envelope protections, for... controls consist of hydraulically powered fly-by-wire elevators, aileron and rudder, controlled by...

  11. 75 FR 71346 - Special Conditions: Boeing Model 787-8 Airplane; Lightning Protection of Fuel Tank Structure To...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-23

    ..., 2009 (74 FR 52698). Several comments were received from two commenters (Cessna and NATCA). Cessna 1.... The Boeing Model 787-8 airplane will incorporate a fuel tank nitrogen generation system (NGS) that... Features The 787 will have a fuel tank NGS that is intended to control fuel tank flammability. This NGS...

  12. 75 FR 6865 - Airworthiness Directives; The Boeing Company Model 737-700 (IGW) Series Airplanes Equipped With...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-12

    ... Review, Flammability Reduction and Maintenance and Inspection Requirements'' (66 FR 23086, May 7, 2001... Policies and Procedures (44 FR 11034, February 26, 1979), and 3. Will not have a significant economic... Model 737-700 (IGW) Series Airplanes Equipped With Auxiliary Fuel Tanks Installed in Accordance...

  13. 76 FR 13921 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... and Maintenance and Inspection Requirements'' (66 FR 23086, May 7, 2001). In addition to new... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will.... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT....

  14. 75 FR 4485 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-28

    ... Register on September 28, 2009 (74 FR 49349). That NPRM proposed to correct an unsafe condition for the... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or.... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  15. 75 FR 75868 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    ... Register on August 25, 2010 (75 FR 52292). That NPRM proposed to require a retrofit of the rear passenger... 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034... Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation Administration,...

  16. 75 FR 2434 - Special Conditions: Boeing Model 747-8/-8F Series Airplanes; Design Roll Maneuver Requirement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-15

    ... airplanes was published in the Federal Register on October 8, 2009 (74 FR 51813). No comments were received... appropriate safety standards for the 747-8/-8F because of a novel or unusual design feature, special... that incorporates the same or similar novel or unusual design feature, or should any other model...

  17. 75 FR 76926 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-10

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F... B4-605R and B4-622R airplanes; Model A300 F4-605R and F4-622R airplanes; Model A300 C4-605R Variant...

  18. The 727 airplane target thrust reverser static performance model test for refanned JT8D engines

    NASA Technical Reports Server (NTRS)

    Chow, C. T. P.; Atkey, E. N.

    1974-01-01

    The results of a scale model static performance test of target thrust reverser configurations for the Pratt and Whitney Aircraft JT8D-100 series engine are presented. The objective of the test was to select a series of suitable candidate reverser configurations for the subsequent airplane model wind tunnel ingestion and flight controls tests. Test results indicate that adequate reverse thrust performance with compatible engine airflow match is achievable for the selected configurations. Tapering of the lips results in loss of performance and only minimal flow directivity. Door pressure surveys were conducted on a selected number of lip and fence configurations to obtain data to support the design of the thrust reverser system.

  19. Tank Investigation of the EDO Model 142 Hydro-Ski Research Airplane

    NASA Technical Reports Server (NTRS)

    Ramsen, John A.; Wadlin, Kenneth L.; Gray, George R.

    1951-01-01

    A tank investigation has been conducted of a 1/10-size powered-dynamic model of the Edo model 142 hydra-ski research airplane. The results of tests of two configurations are presented: One included a large ski and a ski well; the other, a small ski without a well. Water take-offs would be possible with the available thrust for either configuration: however, the configuration with the large ski emerged sooner and had less resistance from ski emergence until take-off. Longitudinal stability and landing behavior in smooth water were satisfactory for both configurations. Some alteration to the design of the tail would be desirable in order to reduce the spray loads.

  20. Dynamics Modeling and Simulation of Large Transport Airplanes in Upset Conditions

    NASA Technical Reports Server (NTRS)

    Foster, John V.; Cunningham, Kevin; Fremaux, Charles M.; Shah, Gautam H.; Stewart, Eric C.; Rivers, Robert A.; Wilborn, James E.; Gato, William

    2005-01-01

    As part of NASA's Aviation Safety and Security Program, research has been in progress to develop aerodynamic modeling methods for simulations that accurately predict the flight dynamics characteristics of large transport airplanes in upset conditions. The motivation for this research stems from the recognition that simulation is a vital tool for addressing loss-of-control accidents, including applications to pilot training, accident reconstruction, and advanced control system analysis. The ultimate goal of this effort is to contribute to the reduction of the fatal accident rate due to loss-of-control. Research activities have involved accident analyses, wind tunnel testing, and piloted simulation. Results have shown that significant improvements in simulation fidelity for upset conditions, compared to current training simulations, can be achieved using state-of-the-art wind tunnel testing and aerodynamic modeling methods. This paper provides a summary of research completed to date and includes discussion on key technical results, lessons learned, and future research needs.

  1. 78 FR 70003 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-22

    ... 12866; 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... series airplanes; Airbus Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300...

  2. 78 FR 68347 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-14

    ... (74 FR 7549, February 18, 2009). Airbus also stated that for Model A340-541 and A340-642 airplanes.... Airbus stated that this requirement for Model A330 MRTT airplanes is equivalent to one in the NPRM (78 FR... (f) of AD 2009-04-07, Amendment 39-15813 (74 FR 7549, February 18, 2009). For all airplanes...

  3. 76 FR 79560 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-22

    ... ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A330-223F and -243F airplanes; and Model A340-200, -300, -500, and -600 series...

  4. Augmentor performance of an F100 engine model derivative engine in an F-15 airplane

    NASA Technical Reports Server (NTRS)

    Walton, James T.; Burcham, Frank W., Jr.

    1986-01-01

    The transient performance of the F100 engine model derivative (EMD) augmentor was evaluated in an F-15 airplane. The augmentor was a newly designed 16-segment augmentor. It was tested with a segment-1 sprayring with 90 deg fuel injection, and later with a modified segment-1 sprayring with centerline fuel injection. With the 90 deg injection, no-lights occurred at high altitudes with airspeeds of 175 knots or less; however, the results were better than when using the standard F100-PW-100 engine. With the centerline fuel injection, all transients were successful to an altitude of 15,500 meters and an airspeed of 150 knots: no failures to light, blowouts, or stalls occurred. For a first flight evaluation, the augmentor transient performance was excellent.

  5. 75 FR 39189 - Airworthiness Directives; The Boeing Company Model 747 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-08

    ... Policies and Procedures (44 FR 11034, February 26, 1979), and 3. Will not have a significant economic... airplanes. This proposed AD would require repetitive inspections for cracking in the body skin around the... cracking in the body skin and the skin splice plate; for certain airplanes, an inspection for steel...

  6. 76 FR 8316 - Special Conditions: Gulfstream Model GVI Airplane; Interaction of Systems and Structures

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-14

    ... systems that affect the structural capability of the airplane. The applicable airworthiness regulations do... are systems that may affect the airplane's structural performance, either directly or as a result of... conditions, and thereby affect its structural capability. These systems may also affect the...

  7. 76 FR 36865 - Special Conditions: Gulfstream Model GVI Airplane; Interaction of Systems and Structures

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ... Federal Register on February 14, 2011 (76 FR 8316). Only one comment was received. Clarification of GVI... that affect the structural capability of the airplane. The applicable airworthiness regulations do not... unusual design features. These features are systems that may affect the airplane's structural...

  8. 76 FR 36863 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Systems Security Protection From...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ... airplanes was published in the Federal Register on February 25, 2011 (76 FR 10529). Only one comment was... architecture and connectivity capabilities of the airplane's computer systems and networks, which may allow access by external computer systems and networks. Connectivity by external systems and networks...

  9. 76 FR 36861 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Systems Security Isolation or...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ... Gulfstream GVI airplanes was published in the Federal Register on February 25, 2011 (76 FR 10528). Only one... features associated with connectivity of the passenger domain computer systems to the airplane ] critical... connected networks. The proposed architecture and network configuration may be used for, or interfaced...

  10. 78 FR 65155 - Special Conditions: Learjet Model 45 Series Airplanes; Isolation or Security Protection of the...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... be found in the Federal Register published on April 11, 2000 (65 FR 19477-19478), as well as at http... associated with connectivity of the passenger service computer systems to the airplane critical systems and... perform functions required for the safe operation of the airplane. This proposed data network and...

  11. 75 FR 29962 - Special Conditions: Cirrus Design Corporation Model SF50 Airplane; Function and Reliability Testing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-28

    ... Design Corporation SF50 airplane. This airplane will have a novel or unusual design feature(s) associated... airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These... for the SF 50 because of a novel or unusual design feature, special conditions are prescribed...

  12. 75 FR 27956 - Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively... airplanes; Model A300 B4-601, B4- 603, B4-620, B4-622, B4-605R, B4-622R, F4-605R, F4-622R, and...

  13. 77 FR 50644 - Airworthiness Directives; Cessna Airplane Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ... 1134104-5 air conditioning (A/C) compressor motor; and (2) are certificated in any category. (d) Subject... certain Cessna Airplane Company Model 525 airplanes equipped with certain part number (P/N) air conditioning (A/C) compressor motors. This proposed AD was prompted by reports of smoke and/or fire in...

  14. 78 FR 28152 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ..., Amendment 39-16526 (75 FR 75878, December 7, 2010), exempted airplanes on which Airbus Modification 34804..., Amendment 39-16526 (75 FR 75878, December 7, 2010). Except for Model A318-121 and -122 airplanes, and except...) of AD 2010-24-07, Amendment 39-16526 (75 FR 75878, December 7, 2010). Except for airplanes on...

  15. Geometric Model for a Parametric Study of the Blended-Wing-Body Airplane

    NASA Technical Reports Server (NTRS)

    Mastin, C. Wayne; Smith, Robert E.; Sadrehaghighi, Ideen; Wiese, Micharl R.

    1996-01-01

    A parametric model is presented for the blended-wing-body airplane, one concept being proposed for the next generation of large subsonic transports. The model is defined in terms of a small set of parameters which facilitates analysis and optimization during the conceptual design process. The model is generated from a preliminary CAD geometry. From this geometry, airfoil cross sections are cut at selected locations and fitted with analytic curves. The airfoils are then used as boundaries for surfaces defined as the solution of partial differential equations. Both the airfoil curves and the surfaces are generated with free parameters selected to give a good representation of the original geometry. The original surface is compared with the parametric model, and solutions of the Euler equations for compressible flow are computed for both geometries. The parametric model is a good approximation of the CAD model and the computed solutions are qualitatively similar. An optimal NURBS approximation is constructed and can be used by a CAD model for further refinement or modification of the original geometry.

  16. Loads Model Development and Analysis for the F/A-18 Active Aeroelastic Wing Airplane

    NASA Technical Reports Server (NTRS)

    Allen, Michael J.; Lizotte, Andrew M.; Dibley, Ryan P.; Clarke, Robert

    2005-01-01

    The Active Aeroelastic Wing airplane was successfully flight-tested in March 2005. During phase 1 of the two-phase program, an onboard excitation system provided independent control surface movements that were used to develop a loads model for the wing structure and wing control surfaces. The resulting loads model, which was used to develop the control laws for phase 2, is described. The loads model was developed from flight data through the use of a multiple linear regression technique. The loads model input consisted of aircraft states and control surface positions, in addition to nonlinear inputs that were calculated from flight-measured parameters. The loads model output for each wing consisted of wing-root bending moment and torque, wing-fold bending moment and torque, inboard and outboard leading-edge flap hinge moment, trailing-edge flap hinge moment, and aileron hinge moment. The development of the Active Aeroelastic Wing loads model is described, and the ability of the model to predict loads during phase 2 research maneuvers is demonstrated. Results show a good match to phase 2 flight data for all loads except inboard and outboard leading-edge flap hinge moments at certain flight conditions. The average load prediction errors for all loads at all flight conditions are 9.1 percent for maximum stick-deflection rolls, 4.4 percent for 5-g windup turns, and 7.7 percent for 4-g rolling pullouts.

  17. Longitudinal Trim and Tumble Characteristics of a 0.057-Scale Model of the Chance Vought XF7U-1 Airplane, TED NO. NACA DE311

    NASA Technical Reports Server (NTRS)

    Bryant, Robert L.

    1948-01-01

    Based on results of longitudinal trim and tumble tests of a 0.057-scale model of the Chance Vought XF7U-1 airplane, the following conclusions regarding the trim and tumble characteristics of the airplane have been drawn: 1. The airplane will not trim at any unusual or uncontrolled angles of attack. 2. The airplane will not tumble with the center of gravity located forward of 24 percent of the mean aerodynamic chord. When the center of gravity is located at 24 percent of the mean aerodynamic chord and slats are extended and elevators are deflected full up, the airplane may tumble if given an external positive pitching moment. 3. The tumbling motion obtained will be readily terminated by deflecting the elevators full down so as to oppose the rotation. 4. The accelerations encountered during an established tumble may be dangerous to the pilot and, therefore, action should be taken to terminate a tumble immediately upon its inception. 5. Simultaneous opening of two wing-tip parachutes having diameters of 4 feet or larger and having drag coefficients of approximately 0.7 will effectively terminate the tumble. 6. Model results indicate that the pilot will not be struck by the airplane if it becomes necessary to leave the airplane during a tumble. The pilot may require aid from an ejection-seat arrangement.

  18. Compilation of Test Data on 111 Free-Spinning Airplane Models Tested in the Langley 15-Foot and 20-Foot Free-Spinning Tunnels

    NASA Technical Reports Server (NTRS)

    Malvestuto, Frank S.; Gale, Lawrence J.; Wood, John H.

    1947-01-01

    A compilation of free-spinning-airplane model data on the spin and recovery characteristics of 111 airplanes is presented. These data were previously published in separate memorandum reports and were obtained from free-spinning tests in the Langley 15-foot and the Langley 20-foot free-spinning tunnels. The model test data presented include the steady-spin and recovery characteristics of each model for various combinations of aileron and elevator deflections and for various loadings and dimensional configurations. Dimensional data, mass data, and a three-view drawing of the corresponding free-spinning tunnel model are also presented for each airplane. The data presented should be of value to designers and should facilitate the design of airplanes incorporating satisfactory spin-recovery characteristics.

  19. Active Aeroelastic Wing Aerodynamic Model Development and Validation for a Modified F/A-18A Airplane

    NASA Technical Reports Server (NTRS)

    Cumming, Stephen B.; Diebler, Corey G.

    2005-01-01

    A new aerodynamic model has been developed and validated for a modified F/A-18A airplane used for the Active Aeroelastic Wing (AAW) research program. The goal of the program was to demonstrate the advantages of using the inherent flexibility of an aircraft to enhance its performance. The research airplane was an F/A-18A with wings modified to reduce stiffness and a new control system to increase control authority. There have been two flight phases. Data gathered from the first flight phase were used to create the new aerodynamic model. A maximum-likelihood output-error parameter estimation technique was used to obtain stability and control derivatives. The derivatives were incorporated into the National Aeronautics and Space Administration F-18 simulation, validated, and used to develop new AAW control laws. The second phase of flights was used to evaluate the handling qualities of the AAW airplane and the control law design process, and to further test the accuracy of the new model. The flight test envelope covered Mach numbers between 0.85 and 1.30 and dynamic pressures from 600 to 1250 pound-force per square foot. The results presented in this report demonstrate that a thorough parameter identification analysis can be used to improve upon models that were developed using other means. This report describes the parameter estimation technique used, details the validation techniques, discusses differences between previously existing F/A-18 models, and presents results from the second phase of research flights.

  20. 75 FR 77569 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Flight Control System Mode...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-13

    ...; Electronic Flight Control System Mode Annunciation AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... design features include an electronic flight control system. The applicable airworthiness regulations do... INFORMATION CONTACT: Joe Jacobsen, FAA, Airplane and Flight Crew Interface Branch, ANM-111,...

  1. 76 FR 10529 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Systems Security Protection From...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-25

    ... associated with the architecture and connectivity capabilities of the airplane's computer systems and networks, which may allow access by external computer systems and networks. Connectivity by external... architecture composed of several connected networks. The proposed architecture and network configuration may...

  2. 75 FR 60010 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes and Model A340-200...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-29

    ... rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will... Directives; Airbus Model A330-200 and -300 Series Airplanes and Model A340-200, -300, -500, and -600 Series... connector internal arcing and hydraulic system malfunction. In addition, as the connectors are located...

  3. Free-Spinning-Tunnel Investigation of a 1/40-Scale Model of the McConnell F-101A Airplane

    NASA Technical Reports Server (NTRS)

    Bowman, James S., Jr.; Healy, Frederick M.

    1959-01-01

    An investigation has been made in the Langley 20-foot free-spinning tunnel of a 1/40-scale model of the McDonnell F-101A airplane to alleviate the unfavorable spinning characteristics encountered with the airplane. The model results indicate that a suitable strake extended on the inboard side of the nose of the airplane (right side in a right spin) in conjunction with the use of optimum control recovery technique will terminate spin rotation of the airplane. It may be difficult to recover from subsequent high angle-of-attack trimmed flight attitudes even by forward stick movement. The optimum spin-recovery control technique for the McDonnell F-101A is simultaneous full rudder reversal to against the spin and aileron movement to full with the spin (stick full right in a right erect spin) and forward movement of the stick immediately after rotation stops.

  4. 77 FR 26663 - Airworthiness Directives; The Boeing Company Model 767-200, -300, -300F, and -400ER Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-07

    ...We are superseding an existing airworthiness directive (AD) that applies to The Boeing Company Model 767-200, -300, and -300F series airplanes. That AD currently requires inspections to detect cracking or corrosion of the fail-safe straps between the side fitting of the rear spar bulkhead at body station 955 and the skin; and follow- on and corrective actions. This new AD expands the......

  5. 78 FR 65233 - Special Conditions: Bombardier Inc., Models BD-500-1A10 and BD-500-1A11 Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ...This action proposes special conditions for the Bombardier Inc. Models BD-500-1A10 and BD-500-1A11 series airplanes. These airplanes will have a novel or unusual design feature associated with aluminum-lithium fuselage construction that may provide different levels of protection from post-crash fire threats than similar aircraft constructed from traditional aluminum structure. The applicable......

  6. Ditching Tests of a 1/10-Scale Model of the North American XFJ-1 Airplane Ted No. NACA 314

    NASA Technical Reports Server (NTRS)

    Fisher, Lloyd J.; McBride, Ellis E.

    1948-01-01

    Tests were made of a 1/10-scale dynamically similar model of the North American XFJ-1 airplane to study its behavior when ditched. The model was landed in calm water at the Langley tank no. 2 monorail. Various landing attitudes, speeds, and conditions of damage were simulated. The behavior of the model was determined from visual observations, by recording the accelerations, and by taking motion pictures of the ditchings. Data are presented in tabular form, sequence photographs, and time-history acceleration curves. From the results of the tests it was concluded that the airplane should be ditched at the near-stall, tail-down landing attitude of 12 deg. The flaps should be fully extended to obtain the lowest possible landing speed. The wing-tip tanks should be jettisoned if any appreciable load of fuel remains; if empty, they should be retained for additional buoyancy. In a calm-water ditching the airplane will probably run about 600 feet Maximum longitudinal decelerations of about 2.5g and maximum vertical acceleration of about 2g will be encountered. The nose-intake duct will be clear of the water until practically all forward motion has stopped.

  7. Revalidation of the NASA Ames 11-by 11-Foot Transonic Wind Tunnel with a Commercial Airplane Model

    NASA Technical Reports Server (NTRS)

    Kmak, Frank J.; Hudgins, M.; Hergert, D.; George, Michael W. (Technical Monitor)

    2001-01-01

    The 11-By 11-Foot Transonic leg of the Unitary Plan Wind Tunnel (UPWT) was modernized to improve tunnel performance, capability, productivity, and reliability. Wind tunnel tests to demonstrate the readiness of the tunnel for a return to production operations included an Integrated Systems Test (IST), calibration tests, and airplane validation tests. One of the two validation tests was a 0.037-scale Boeing 777 model that was previously tested in the 11-By 11-Foot tunnel in 1991. The objective of the validation tests was to compare pre-modernization and post-modernization results from the same airplane model in order to substantiate the operational readiness of the facility. Evaluation of within-test, test-to-test, and tunnel-to-tunnel data repeatability were made to study the effects of the tunnel modifications. Tunnel productivity was also evaluated to determine the readiness of the facility for production operations. The operation of the facility, including model installation, tunnel operations, and the performance of tunnel systems, was observed and facility deficiency findings generated. The data repeatability studies and tunnel-to-tunnel comparisons demonstrated outstanding data repeatability and a high overall level of data quality. Despite some operational and facility problems, the validation test was successful in demonstrating the readiness of the facility to perform production airplane wind tunnel%, tests.

  8. Effects of several factors on theoretical predictions of airplane spin characteristics. [dynamic models

    NASA Technical Reports Server (NTRS)

    Bihrle, W., Jr.; Barnhart, B.

    1974-01-01

    The influence of different mathematical and aerodynamic models on computed spin motion was investigated along with the importance of some of the aerodynamic and nonaerodynamic quantities defined in these models. An analytical technique was used which included the aerodynamic forces and moments acting on a spinning aircraft due to steady rotational flow and the contribution of the rotary derivatives to the oscillatory component of the total angular rates. It was shown that (1) during experimental-analytical correlation studies, the flight-recorded control time histories must be faithfully duplicated since the spinning motion can be sensitive to a small change in the application of the spin entry controls; (2) an error in the assumed inertias, yawing moments at high angle of attack, and initial spin entry bank angle do not influence the developed spin significantly; (3) damping in pitch derivatives and the center of gravity location play a role in the spinning motion; and (4) the experimental spin investigations conducted in a constant atmospheric density environment duplicate the Froude number only at the initial full-scale spin altitude (since the full-scale airplane at high altitudes experiences large density changes during the spin.)

  9. Lateral Stability Characteristics of a 1/8.33-Scale Powered Model of the Republic XF-12 Airplane

    NASA Technical Reports Server (NTRS)

    Pepper, Edward; Foster, Gerald V.

    1947-01-01

    The XF-12 airplane is a high-performance photo-reconnaissance aircraft designed for the Army Air Forces by the Republic Aviation Corporation. An investigation of a 1/8.33 - scale powered model was made in the Langley l9-foot pressure tunnel to obtain information relative to the aerodynamic design of the airplane. The model was tested with and without the original vertical tail. and with two revised tails. For the revised tail no. 1, the span of the original vertical .tail was increased about 15 percent and the portion of the vertical tail between the stabilizer and fuselage behind the rudder hinge line was allowed to deflect simultaneously with the main rudder. Revision no. 2 incorporated the increased span, but the lower rudder was locked in the neutral position. For all the tail arrangements investigated it was indicated that the airplane will possess positive effective dihedral and will be directionally stable regardless of flap or power condition. The rudder effectiveness is greater for the revised tails than for the original tail, but this is offset by the increase in directional stability caused by the revised tail. All the rudder arrangements appear inadequate in trimming out the resultant yawing moments at zero yaw in a take - off condition with the left-hand outboard propeller windmilling and the remaining engines developing take-off power.

  10. Yawed-Landing Investigation of a Model of the Convair Y2-2 Airplane, TED No. NACA DE 363

    NASA Technical Reports Server (NTRS)

    Hoffman, Edward L.; Fisher, Lloyd J.

    1950-01-01

    A model of the Convair Y2-2 airplane was tested in Langley tank no. 2 to determine whether satisfactory stability in yawed landings was possible with a certain ventral fin. Free-body landings were made in smooth and rough water at two speeds and two rates of descent with the model yawed 15deg. The behavior of the model was determined by visual observations and from motion-picture re.cords. It was concluded that satisfactory stability was possible with the ventral fin as tested but that the characteristics of the model shock absorbers and the settings of the elevon control surfaces had an appreciable influence on behavior.

  11. 75 FR 47207 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-05

    ...- 19, Amendment 39-16364 (75 FR 39814, July 13, 2010), for certain Airbus Model A330-200 and -300... A340-200, -300, -500 and -600 series airplanes. A certain service bulletin number in Note 3 of the regulatory section is incorrect. This document corrects that service bulletin number. In all other...

  12. 75 FR 11435 - Airworthiness Directives; Airbus Model A300 B4-2C, B4-103, and B4-203 Airplanes; and Model A300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-11

    ... October 28, 2009 (74 FR 55485). That NPRM proposed to correct an unsafe condition for the specified... Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant...-53-0268, Revision 06, dated January 7, 2002 (for Model A300 B4-2C, B4-103, and B4-203 airplanes);...

  13. Preliminary flight evaluation of F100 engine model derivative airstart capability in an F-15 airplane

    NASA Technical Reports Server (NTRS)

    Cho, T. K.; Burcham, F. W., Jr.

    1984-01-01

    A series of airstarts was conducted in an F-15 airplane with two prototype F100 engine model derivative (EMD) engines equipped with digital electronic engine control (DEEC) systems. The airstart envelope and time required for airstarts were defined. The success of an airstart is most heavily dependent on airspeed. Spooldown airstarts at 200 knots and higher were all successful. Spooldown airstart times ranged from 53 sec at 250 knots to 170 sec at 175 knots. Jet fuel starter (JFS) assisted airstarts were conducted at 175 knots at two altitudes, and airstart times were 50 and 60 sec, significantly faster than unassisted airstart. The effect of altitude on airstarts was small. In addition, the airstart characteristics of the two test engines were found to closely resemble each other. The F100 EMD airstart characteristics were very similar to the DEEC equipped F100 engine tested previously. Finally, the time required to spool down from intermediate power compressor rotor speed to a given compressor rotor speed was found to be a strong function of altitude and a weaker function of airspeed.

  14. Experimental study of noise reduction for an unstiffened cylindrical model of an airplane fuselage

    NASA Technical Reports Server (NTRS)

    Willis, C. M.; Daniels, E. F.

    1981-01-01

    Noise reduction measurements were made for a simplified model of an airplane fuselage consisting of an unstiffened aluminum cylinder 0.5 m in diameter by 1.2 m long with a 1.6-mm-thick wall. Noise reduction was first measured with a reverberant field pink-noise load on the cylinder exterior. Next, noise reduction was measured by using a propeller to provide a more realistic noise load on the cylinder. Structural resonance frequencies and acoustic reverberation times for the cylinder interior volume were also measured. Comparison of data from the relatively simple test using reverberant-field noise with data from the more complex propeller-noise tests indicates some similarity in both the overall noise reduction and the spectral distribution. However, all of the test parameters investigated (propeller speed, blade pitch, and tip clearance) had some effect on the noise-reduction spectra. Thus, the amount of noise reduction achieved appears to be somewhat dependent upon the spectral and spatial characteristics of the flight conditions. Information is also presented on cyclinder resonance frequencies, damping, and characteristics of propeller-noise loads.

  15. Wind-Tunnel Investigation of a 1/5-Scale Model of the Ryan XF2R Airplane

    NASA Technical Reports Server (NTRS)

    Wong, Park Y.

    1947-01-01

    Wind-tunnel tests on a 1/5-scale model of the Ryan XF2R airplane were conducted to determine the aerodynamic characteristics of the air intake for the front power plant, a General Electric TG-100 gas turbine, and to determine the stability and control characteristics of the airplane. The results indicated low-dynamic-pressure recover3- for the air intake to the TG-100 gas turbine rith the standard propeller in operation. Propeller cuffs were designed and tested for the purpose of impoving the dynamic-pressure recovery. Data obtained with the cuffs installed and the gap between the spinner an& the cuff sealed indicated a substantial gain in dynamic pressure recovery over that obtained with the standard propeller and with the cuffed propeller unsealed. Stability and control tests were conducted with the sealed cuffs installed on the propeller. The data from these tests indicated the following unsatisfactory characteristics for the airplane: 1. Marginal static longitudinal stability. 2. Inadequate directional stability and control. 3. Rudder-pedal-force reversal in the climb condition. 4. Negative dihedral effect in the power-on approach and wave-off conditions.

  16. Modelling and simulation of fuel cell dynamics for electrical energy usage of Hercules airplanes.

    PubMed

    Radmanesh, Hamid; Heidari Yazdi, Seyed Saeid; Gharehpetian, G B; Fathi, S H

    2014-01-01

    Dynamics of proton exchange membrane fuel cells (PEMFC) with hydrogen storage system for generating part of Hercules airplanes electrical energy is presented. Feasibility of using fuel cell (FC) for this airplane is evaluated by means of simulations. Temperature change and dual layer capacity effect are considered in all simulations. Using a three-level 3-phase inverter, FC's output voltage is connected to the essential bus of the airplane. Moreover, it is possible to connect FC's output voltage to airplane DC bus alternatively. PID controller is presented to control flow of hydrogen and oxygen to FC and improve transient and steady state responses of the output voltage to load disturbances. FC's output voltage is regulated via an ultracapacitor. Simulations are carried out via MATLAB/SIMULINK and results show that the load tracking and output voltage regulation are acceptable. The proposed system utilizes an electrolyser to generate hydrogen and a tank for storage. Therefore, there is no need for batteries. Moreover, the generated oxygen could be used in other applications in airplane. PMID:24782664

  17. Modelling and Simulation of Fuel Cell Dynamics for Electrical Energy Usage of Hercules Airplanes

    PubMed Central

    Radmanesh, Hamid; Heidari Yazdi, Seyed Saeid; Gharehpetian, G. B.; Fathi, S. H.

    2014-01-01

    Dynamics of proton exchange membrane fuel cells (PEMFC) with hydrogen storage system for generating part of Hercules airplanes electrical energy is presented. Feasibility of using fuel cell (FC) for this airplane is evaluated by means of simulations. Temperature change and dual layer capacity effect are considered in all simulations. Using a three-level 3-phase inverter, FC's output voltage is connected to the essential bus of the airplane. Moreover, it is possible to connect FC's output voltage to airplane DC bus alternatively. PID controller is presented to control flow of hydrogen and oxygen to FC and improve transient and steady state responses of the output voltage to load disturbances. FC's output voltage is regulated via an ultracapacitor. Simulations are carried out via MATLAB/SIMULINK and results show that the load tracking and output voltage regulation are acceptable. The proposed system utilizes an electrolyser to generate hydrogen and a tank for storage. Therefore, there is no need for batteries. Moreover, the generated oxygen could be used in other applications in airplane. PMID:24782664

  18. An Estimation of the Flying Qualities of the Kaiser Fleetwing All-Wing Airplane from Tests of a 1/7-Scale Model, TED No. NACA 2340

    NASA Technical Reports Server (NTRS)

    Brewer, Gerald W.

    1946-01-01

    An investigation of a 1/7-scale powered model of the Kaiser Fleetwing all-wing airplane was made in the Langley full-scale tunnel to provide data for an estimation of the flying qualities of the airplane. The analysis of the stability and control characteristics of the airplane has been made as closely as possible in accordance with the requirements of the Bureau of Aeronautics, Navy Department's specifications, and a summary of the more significant conclusions is presented as follows. With the normal center of gravity located at 20 percent of the mean aerodynamic chord, the airplane will have adequate static longitudinal stability, elevator fixed, for all flight conditions except for low-power operation at low speeds where the stability will be about neutral. There will not be sufficient down-elevator deflection available for trim above speeds of about 130 miles per hour. It is probable that the reduction in the up-elevator deflections required for trim will be accompanied by reduced elevator hinge moments for low-power operation at low flight speeds. The static directional stability for this airplane will be low for all rudder-fixed or rudder-free flight conditions. The maximum rudder deflection of 30 deg will trim only about 15 deg yaw for most flight conditions and only 10 deg yaw for the condition with low power at low speeds. Also, at low powers and low speeds, it is estimated that the rudders will not trim the total adverse yaw resulting from an abrupt aileron roll using maximum aileron deflection. The airplane will meet the requirements for stability and control for asymmetric power operation with one outboard engine inoperative. The airplane would have no tendency for directional divergence but would probably be spirally unstable, with rudders fixed. The static lateral stability of the airplane will probably be about neutral for the high-speed flight conditions and will be only slightly increased for the low-power operation in low-speed flight. The

  19. 78 FR 29666 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-21

    ...We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A330-200 and -300 series airplanes; Model A340-200 and -300 series airplanes; and Model A340-541 and -642 airplanes. This proposed AD was prompted by reports of wing tip brakes (WTBs) losing their braking function in service due to heavy wear on the brake discs. WTBs are designed to stop and hold the mechanical......

  20. 77 FR 65812 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-31

    ...We are adopting a new airworthiness directive (AD) for all Airbus Model A330-200 freighter series airplanes; Model A330-200 and - 300 series airplanes; and Model A340-200 and -300 series airplanes. This AD was prompted by reports of ram air turbine (RAT) pump failure. This AD requires inspecting the RAT pump anti-stall valve for correct setting, re-identifying the RAT pump, performing a......

  1. 77 FR 40830 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ...We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-200 freighter series airplanes; Model A330-200 and - 300 series airplanes; and Model A340-200 and -300 series airplanes. This proposed AD was prompted by reports of ram air turbine (RAT) pump failure. This proposed AD would require inspecting the RAT pump anti- stall valve for correct setting, re-identifying the......

  2. Correlation Tests of the Ditching Behavior of an Army B-24D Airplane and a 1/16-size Model

    NASA Technical Reports Server (NTRS)

    Jarvis, George A.; Fisher, Lloyd J.

    1946-01-01

    Behaviors of both model and full-scale airplanes were ascertained by making visual observations, by recording time histories of decelerations, and by taking motion picture records of ditchings. Results are presented in form of sequence photographs and time-history curves for attitudes, vertical and horizontal displacements, and longitudinal decelerations. Time-history curves for attitudes and horizontal and vertical displacements for model and full-scale tests were in agreement; maximum longitudinal decelerations for both ditchings did not occur at same part of run; full-scale maximum deceleration was 50 percent greater.

  3. Ditching Tests of a 1/9-Size Model of the Army P-38 Airplane in Langley Tank No. 2 and at the Outdoor Catapult

    NASA Technical Reports Server (NTRS)

    Jarvis, George A.; Cederborg, Gibson A.

    1946-01-01

    A dynamically similar model of the Army P-38 airplane was tested to determine the best way to land this airplane on the water and to determine its probable ditching performance. The tests consisted of ditching the model at various landing attitudes, flap settings, speeds, weights, and conditions of simulated damage. The model was ditched in calm water from the tank towing carriage and a few ditching were made in both calm and rough water at the outdoor catapult. The performance of the model was determined by making visual observations, by recording lengths of run and time histories of decelerations, and by taking motion pictures of the ditchings.

  4. Vapor-Liquid Equilibrium in the Mixture 1,1,1,2-Tetrafluoroethane C2H2F4 + C4H10O2 2,5-Dioxahexane (EVLM1111, LB5748_E)

    NASA Astrophysics Data System (ADS)

    Cibulka, I.; Fontaine, J.-C.; Sosnkowska-Kehiaian, K.; Kehiaian, H. V.

    This document is part of Subvolume C 'Binary Liquid Systems of Nonelectrolytes III' of Volume 26 'Heats of Mixing, Vapor-Liquid Equilibrium, and Volumetric Properties of Mixtures and Solutions' of Landolt-Börnstein Group IV 'Physical Chemistry'. It contains the Chapter 'vapor-Liquid Equilibrium in the Mixture 1,1,1,2-Tetrafluoroethane C2H2F4 + C4H10O2 2,5-Dioxahexane (EVLM1111, LB5748_E)' providing data from direct measurement of pressure at variable mole fraction in liquid phase and constant temperature.

  5. Wind-tunnel Tests of a 2-engine Airplane Model as a Preliminary Study of Flight Conditions Arising on the Failure of the Engine

    NASA Technical Reports Server (NTRS)

    Hartman, Edwin P

    1938-01-01

    Wind tunnel tests of a 15-foot-span model of a two-engine low wing transport airplane were made as a preliminary study of the emergency arising from the failure of one engine in flight. Two methods of reducing the initial yawing moment resulting from the failure of one engine were investigated and the equilibrium conditions were explored for two basic modes on one engine, one with zero angle of sideslip and the other with several degrees of sideslip. The added drag resulting from the unsymmetrical attitudes required for flight on one engine was determined for the model airplane. The effects of the application of power upon the stability, controllability, lift, and drag of the model airplane were measured. A dynamic pressure survey of the propeller slipstream was made in the neighborhood of the tail surfaces at three angles of attack. The added parasite drag of the model airplane resulting from the unfavorable conditions of flight on one engine was estimated. From 35 to 50 percent of this added drag was due to the drag of the dead engine propeller and the other 50 to 65 percent was due to the unsymmetrical attitude of the airplane. The mode of flight on one engine in which the angle of sideslip was zero was found to require less power than the mode in which the angle of sideslip was several degrees.

  6. 75 FR 15357 - Airworthiness Directives; The Boeing Company Model 767 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... Procedures (44 FR 11034, February 26, 1979), and 3. Will not have a significant economic impact, positive or...-to-wing upper link load path and possible separation of a strut and engine from the airplane during... not detected and corrected, could result in the loss of the strut-to-wing upper link load path...

  7. 75 FR 46861 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-04

    ... 29, 2010 (75 FR 4710). That earlier NPRM proposed to supersede AD 2007-05-08, Amendment 39-14969 (72 FR 96580, March 5, 2007), to require actions intended to address the unsafe condition for the..., -500, and -600 series airplanes. We have issued AD 2010-01-07, Amendment 39-16165 (75 FR 1538,...

  8. 75 FR 53843 - Airworthiness Directives; The Boeing Company Model 737-100 and -200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-02

    ... published in the Federal Register on May 19, 2010 (75 FR 27969). That NPRM proposed to require repetitive... Policies and Procedures (44 FR 11034, February 26, 1979), and (3) Will not have a significant economic... at body station 639, stringer S-16, and corrective actions if necessary. For certain airplanes,...

  9. 75 FR 60665 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-01

    ... MD-90-30 airplanes. This proposed AD would require repetitive high frequency eddy current inspections... 17, 2010, describes procedures for doing repetitive high frequency eddy current (HFEC) inspections... Order 12866, 2. Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44...

  10. 75 FR 80742 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-23

    ... proposed AD by February 7, 2011. ADDRESSES: You may send comments by any of the following methods: Federal... stabilizer in accordance with AD 2007-10-04, Amendment 39-15045 (72 FR 25960, May 8, 2007). That airplane had..., Amendment 39-15947 (74 FR 30922, June 29, 2009). Uncorrected cracking could result in loss of the...