Science.gov

Sample records for 7x airplanes agency

  1. 76 FR 17364 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-29

    ... Model FALCON 7X Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Building Ground Floor, Room W12-40, 1200 New Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m... the Internet at http://www.regulations.gov ; or in person at the Docket Operations office between 9...

  2. 75 FR 1697 - Airworthiness Directives; Dassault-Aviation Model Falcon 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-13

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2009-1252; Directorate Identifier 2009-NM-248-AD; Amendment 39-16173; AD 2010-02-02] RIN 2120-AA64 Airworthiness Directives; Dassault-Aviation Model Falcon 7X Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...

  3. 75 FR 82327 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... 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 proposed... an aviation authority of another country to identify and correct an unsafe condition on an...

  4. 78 FR 78292 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. AD 2011-13-07 requires revising the airplane flight manual (AFM)...

  5. 77 FR 15293 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. The existing AD currently requires revising the Abnormal Procedures...

  6. 78 FR 40065 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model FALCON 7X airplanes. The existing AD currently requires adding an automatic reversion...

  7. W7-X Progress

    SciTech Connect

    Gasparotto, M.; Erckmann, V.; Gardebrecht, W.; Rummel, Th.; Schauer, F.; Wanner, M.; Wegener, L.

    2005-04-15

    The WENDELSTEIN 7-X stellarator (W7-X) is the next step device in the stellarator line of IPP and is presently under construction at the Greifswald branch institute. The experiment aims at demonstrating the steady state capability of a stellarator machine at reactor relevant parameters. An important feature of W7-X is the high geometrical accuracy of the magnetic configuration which implies tight tolerances in the construction and assembly phases. The magnetic system consists of 50 non planar and 20 planar superconducting coils. Critical components are the coil support elements connecting the coil to the central mechanical structure and the inter-coil elements connecting the coils one to the other. Efficient thermal insulation of the superconducting coils is achieved by high vacuum and multi-layer insulation. The plasma vessel is composed of 10 half-modules welded together during the assembly phase. A 10 MW ECRH system with CW-capability operation at 140 GHz is required to meet the scientific objective of W7-X.The paper will report the recent progress on W7-X with particular emphasis on the components where high technology solutions have been applied.

  8. 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

    ...-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  9. 77 FR 62182 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Airbus Model A310 series airplanes. This proposed...

  10. 76 FR 78524 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-19

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... series airplanes, Model A340-200 and -300 series airplanes, and Model A340-500 and -600 series airplanes..., ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington...

  11. 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

    ...-200 Series Airplanes; Model A330-300 Series Airplanes; Model A340-200 Series Airplanes; and Model A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... airplanes) or TR150 (for Model A340-200 and -300 series airplanes), both Issue 1.0, both dated December...

  12. 78 FR 21227 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final...-200 Freighter, A330-300, A340-200, and A340-300 series airplanes; and Model A340-541 airplanes and Model A340- 642 airplanes. This AD was prompted by reports of cracks in the bogie pivot pin caused...

  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

    ...; Isolation or Airplane Electronic System Security Protection From Unauthorized Internal Access AGENCY... diverse set of functions, including: Flight-safety related control and navigation systems, Airline...-550 airplanes. Isolation or Airplane Electronic System Security Protection From Unauthorized...

  14. 77 FR 50411 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ... Material Specification (BMS) 8-39 urethane foam, and a report from the airplane manufacturer that airplanes... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... 747SP series airplanes; Model 767-200, -300, -300F, and -400ER series airplanes; and Model...

  15. 77 FR 55681 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... Material of the Components of the Horizontal Stabilizer For airplanes identified in Boeing 707 Alert...-17176; AD 2012-17-13] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY... -100B short body series airplanes; Model 707-300, -300B, -300C, and - 400 series airplanes; and...

  16. 76 FR 72863 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... (for Model 707 airplanes, and Model 720 and 720B series airplanes). Determine Material of the... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-100 long body, -200, -100B long body, and -100B short body series airplanes; Model 707-300,...

  17. 78 FR 28128 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... airplanes. This AD was prompted by reports of two in-service occurrences on Model 737-400 airplanes of total..., inability to restart the engines, and consequent forced landing of the airplane. DATES: This AD is...

  18. 77 FR 5996 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-07

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... series airplanes. This AD was prompted by a report from the airplane manufacturer that airplanes were assembled with air distribution ducts in the environmental control system (ECS) wrapped with Boeing...

  19. 76 FR 68666 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ... Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for certain The Boeing Company Model 737-100, -200, -200C, and -300 series airplanes. This proposed AD was prompted by a report from the airplane manufacturer that airplanes were assembled with...

  20. 76 FR 27227 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-11

    ... Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356... airplane configuration: Cold working of trellis boom drainage holes. Repetitive detailed or rotating...

  1. 78 FR 41882 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-12

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Aviation Model Falcon 2000 series airplanes. That AD currently requires repetitive operational...

  2. 76 FR 432 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-05

    ...-201, -202, -203, - 223, and -243 Airplanes; Airbus Model A330-300 Series Airplanes; and Airbus Model A340-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department...

  3. 75 FR 60655 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-01

    ...-201, -202, -203, - 223, and -243 Airplanes; Airbus Model A330-300 Series Airplanes; and Airbus Model A340-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION:...

  4. 77 FR 10352 - Airworthiness Directives; Various Transport Category Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... Category Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are revising an existing airworthiness directive (AD) for transport category airplanes that have one or more...; establishment of a procedure to announce to airplane occupants that smoking is prohibited in the...

  5. 77 FR 12158 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are... Series 900) airplanes. That AD currently requires repetitive detailed inspections for cracking or... inspection interval for certain airplanes. This new AD adds a new modification of the MLG door...

  6. 78 FR 72836 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... airplanes. This proposed AD was prompted by multiple reports of cracking in the overwing frames. This... adjacent structure and consequent loss of structural integrity of the airplane. DATES: We must...

  7. 77 FR 21420 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 680 airplanes. This...-feed wiring, and revising the airplane flight manual to include procedures to use when the left...

  8. 78 FR 55662 - Airworthiness Directives; the Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-11

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-10, DC-9-30, and DC-9-40 series airplanes. This proposed AD was prompted by an evaluation by the... integrity of the airplane. DATES: We must receive comments on this proposed AD by October 28,...

  9. 77 FR 63714 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-17

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... airplanes. This AD was prompted by a report of elevator vibration and bearing swage failures. This AD requires, for certain airplanes, repetitive inspections for any discrepancies (such as a gap or a...

  10. 78 FR 78703 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a... series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating... bulkhead, which could result in reduced structural integrity of the airplane. DATES: This AD is...

  11. 77 FR 21429 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-10

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777 airplanes. This AD was... these airplanes. DATES: This AD is effective May 15, 2012. The Director of the Federal Register...

  12. 76 FR 53308 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for... airplanes. That AD currently requires either installing a placard prohibiting spins and other acrobatic maneuvers in the airplane or replacing the rudder stop, the rudder stop bumper, and the attachment...

  13. 78 FR 57542 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-19

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... Boeing Company Model 777-200 and -300 series airplanes. AD 2012-12-08 requires an inspection for the part... determined that additional airplanes may be subject to the identified unsafe condition. This proposed...

  14. 75 FR 61657 - Airworthiness Directives; Transport Category Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice... directive (AD) that applies to transport category airplanes that have one or more lavatories equipped with...; establishment of a procedure to announce to airplane occupants that smoking is prohibited in the...

  15. 77 FR 12166 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are... series airplanes. That AD currently requires inspecting certain power feeder wire bundles for damage... certain airplanes. This AD was prompted by a report that a power feeder wire bundle chafed against...

  16. 77 FR 46343 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-03

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-400D, 747-400F, 747SR, and 747SP series airplanes; and certain Model 757-200, -200PF, and -300 series airplanes. The existing AD currently requires replacing the control switches of the forward, aft, and...

  17. 78 FR 73744 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-09

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of proposed... series airplanes. The SNPRM proposed to require inspecting for a serial number that starts with the... action revises the SNPRM by revising the applicable thresholds from flight cycles on the airplane...

  18. 78 FR 20229 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-04

    ... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are..., -800, -900, and -900ER series airplanes. That AD currently requires repetitive inspections of the aft... Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle,...

  19. 77 FR 13193 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-06

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION..., and -106 airplanes and Model DHC-8-200, -300, and -400 series airplanes. This AD was prompted...

  20. 76 FR 69161 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION.... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM... (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes;...

  1. 76 FR 71470 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-18

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Bombardier, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...-102, -103, and -106 airplanes and Model DHC-8-200, -300, and -400 series airplanes. This proposed...

  2. Giant airplanes

    NASA Technical Reports Server (NTRS)

    Warner, Edward P

    1922-01-01

    It is hardly possible for the most imaginative aeronautical enthusiast to look forward to a time when the airplane will have reached the dimensions commensurate with those already attained by the airship.

  3. 76 FR 15872 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-22

    ...-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...-200 and -300 series airplanes and Model A340-200, -300, -500, and -600 series airplanes. That AD... FR 8610, February 15, 2011), for Airbus Model A340-200, -300, -500, and -600 series airplanes,...

  4. 75 FR 20518 - Special Conditions: Cirrus Design Corporation Model SF50 Airplane; Full Authority Digital Engine...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ... Airplane; Full Authority Digital Engine Control (FADEC) System AGENCY: Federal Aviation Administration (FAA... issued for the Cirrus Design Corporation model SF50 airplane. This airplane will have a novel or unusual... Aviation Administration, Aircraft Certification Service, Small Airplane Directorate, ACE-111, 901...

  5. Turbulence investigations at Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Grulke, Olaf; Windisch, Thomas; Weir, Gavin; Kleiber, Ralf; Proll, Josefine; Xanthopoulos, Pavlos; W7-X Team Team

    2016-10-01

    A key design aspect of the Wendelstein 7-X stellarator, which went into operation in 2015, has been its optimization with respect to MHD stability and neoclassical transport. Based on fundamental theoretical investigations and numerical simulation results, it is evident that the neoclassically optimized geometry impacts the evolution of turbulence, potentially reducing also the anomalous transport. The experimental verification of those results is, however, challenging due to the expected poloidal localization of fluctuations and toroidal ballooning effects. This paper presents initial results obtained in the limiter configuration of the first operation phase. For the upcoming operation phase, the full island divertor configuration will be realized and the capabilities of fluctuation diagnostics at Wendelstein 7-X will be greatly enhanced. They cover different regions in radial, poloidal and toroidal space and allow for a more detailed connection to the simulation results. The details of the diagnostics layout are presented and the priorities of the experimental program are highlighted.

  6. 76 FR 6578 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-07

    ...-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental... apply to certain Model A330-200 and -300 series airplanes. That supplemental NPRM was published in...

  7. 75 FR 20265 - Airworthiness Directives; Liberty Aerospace Incorporated Model XL-2 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-19

    ... Aerospace Incorporated Model XL-2 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Liberty Aerospace Incorporated Model XL-2 airplanes. AD 2009-08-05 currently requires repetitively... approved the incorporation by reference of Liberty Aerospace, Inc. Service Document Critical...

  8. 78 FR 75453 - Special Conditions: Cessna Model 750 Series Airplanes; Aircraft Electronic System Security...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-12

    ... data network and design integration may result in security vulnerabilities from intentional or... than previous airplane models. This may allow the exploitation of network security vulnerabilities and... Airplanes; Aircraft Electronic System Security Isolation or Protection From Internal Access AGENCY:...

  9. 76 FR 56286 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes, Model A330...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-13

    ...-201, -202, -203, - 223, and -243 Airplanes, Model A330-300 Series Airplanes, Model A340- 200 Series Airplanes, and Model A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... were also performed on some rudders fitted on A330 and A340-200/-300 aeroplanes. An extended...

  10. 78 FR 65235 - Special Conditions: Learjet Inc., Model LJ-200-1A10 Airplane; Crashworthiness, Emergency Landing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... similarly sized airplane fabricated from traditionally used metallic materials. The FAA and industry have... Airplane; Crashworthiness, Emergency Landing Conditions AGENCY: Federal Aviation Administration (FAA), DOT... Learjet Model LJ-200-1A10 airplane. This airplane will have novel or unusual design features when...

  11. 78 FR 36084 - Special Conditions: The Boeing Company, Model 717-200 Series Airplanes; Seats With Inflatable...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-17

    ... flammability of the airbag material. The Boeing Model 717-200 series airplanes will use the similar airbag... Series Airplanes; Seats With Inflatable Lapbelts AGENCY: Federal Aviation Administration (FAA), DOT... the Boeing Model 717- 200 series airplanes. These airplanes will have a novel or unusual...

  12. 78 FR 68985 - Special Conditions: Boeing Model 777-200, -300, and -300ER Series Airplanes; Aircraft Electronic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-18

    ... maintenance of the airplane. The existing regulations and guidance material did not anticipate these types of... Series Airplanes; Aircraft Electronic System Security Protection From Unauthorized Internal Access AGENCY... conditions are issued for the Boeing Model 777- 200, -300, and -300ER series airplanes. These airplanes,...

  13. 76 FR 63822 - Special Conditions: Gulfstream Aerospace LP (GALP) Model G280 Airplane, Limit Engine Torque Loads...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ...) Model G280 Airplane, Limit Engine Torque Loads for Sudden Engine Stoppage AGENCY: Federal Aviation... conditions are issued for the Gulfstream Aerospace LP (GALP) model G280 airplane. This airplane will have a...: Federal Aviation Administration, Transport Airplane Directorate, Attn: Rules Docket (ANM-113), Docket...

  14. Amphibious Airplane

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The airplane pictured is the new Air Shark I, a four-place amphibian that makes extensive use of composite materials and cruises at close to 200 miles per hour under power from a 200-horsepower engine. Air Shark I is a "homebuilt" airplane, assembled from a kit of parts and components furnished by Freedom Master Corporation, Satellite Beach, Florida. The airplane incorporates considerable NASA technology and its construction benefited from research assistance provided by Kennedy Space Center (KSC) In designing the Shark, company president Arthur M. Lueck was able to draw on NASA's aeronautical technology bank through KSC's computerized "recon" library. As a result of his work at KSC, the wing of the Air Shark I is a new airfoil developed by Langley Research Center for light aircraft. In addition, Lueck opted for NASA-developed "winglets," vertical extensions of the wing that reduce drag by smoothing air turbulence at the wingtips. The NASA technology bank also contributed to the hull design. Lueck is considering application of NASA laminar flow technology-means of smoothing the airflow over wing and fuselage-to later models for further improvement of the Shark's aerodynamic efficiency. A materials engineer, Lueck employed his own expertise in designing and selecting the materials for the composite segments, which include all structural members, exposed surfaces and many control components. The materials are fiber reinforced plastics, or FRP They offer a high strength-to-weight ratio, with a nominal strength rating about one and a half times that of structural steel. They provide other advantages: the materials can be easily molded into finished shapes without expensive tooling or machining, and they are highly corrosion resistant. The first homebuilt to be offered by Freedom Master, Air Shark I completed air and water testing in mid-1985 and the company launched production of kits.

  15. 76 FR 53305 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-26

    ...-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... applicability in the MCAI also identifies Airbus Model A340-200, -300, -500, and -600 series airplanes, this AD only applies to Airbus Model A330-200 and -300 series airplanes. FAA AD 2011-04-06, Amendment...

  16. 76 FR 62605 - Airworthiness Directives; Viking Air Limited Model DHC-3 (Otter) Airplanes With Supplemental Type...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-11

    ... Limited Model DHC-3 (Otter) Airplanes With Supplemental Type Certificate (STC) SA 09866SC AGENCY: Federal... DHC-3 (Otter) airplanes equipped with a Honeywell TPE331- 10 or -12JR turboprop engine installed per... for Viking Air Limited Model DHC-3 (Otter) airplanes equipped with a Honeywell TPE331-10 or...

  17. 76 FR 8607 - Airworthiness Directives; The Cessna Aircraft Company Model 750 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... Company Model 750 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule... requires revising the airplane flight manual. This AD was prompted by a report of a DC generator..., Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on...

  18. 78 FR 36084 - Special Conditions: Cirrus Design Corporation Model SF50 Airplane; Function and Reliability...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-17

    ... introductory material also stated the service test requirement was removed for airplanes of 6,000 pounds... Airplane; Function and Reliability Testing; Withdrawal AGENCY: Federal Aviation Administration (FAA), DOT... notice granting special conditions for the Cirrus Design Corporation model SF50 airplane. We...

  19. 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

    ... to be approved, the repair must meet the certification basis of the airplane. Material Incorporated... Model 737-100 and - 200 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... -200 series airplanes. This AD requires repetitive inspections for cracking and damaged fasteners...

  20. 75 FR 71353 - Airworthiness Directives; Mitsubishi Heavy Industries, Ltd. Various Models MU-2B Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-23

    ... Industries, Ltd. Various Models MU-2B Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... September 24, 1986, of the MU-2B-60 airplane flight manual (AFM) in table 3 of the Compliance section (e)(1... certain MHI various Models MU-2B airplanes. As published, table 3 specific to the MHI MU-2B-60...

  1. 77 FR 20572 - Airworthiness Directives; BAE Systems (Operations) Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-05

    ... Directives; BAE Systems (Operations) Limited Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for certain BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 and Model Avro 146-RJ airplanes. This... information identified in this proposed AD, contact BAE SYSTEMS (Operations) Limited, Customer...

  2. 77 FR 60323 - Airworthiness Directives; DASSUALT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSUALT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... DASSAULT AVIATION Model MYSTERE-FALCON 50 airplanes. This proposed AD was prompted by a...

  3. 77 FR 44511 - Airworthiness Directives; Alpha Aviation Concept Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-30

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Alpha Aviation Concept Limited Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for Alpha Aviation Concept Limited Model R2160 Airplanes. This proposed AD results from...

  4. 78 FR 69785 - Airworthiness Directives; Slingsby Aviation Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Slingsby Aviation Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for Slingsby Aviation Ltd. Model T67M260 airplanes. This proposed AD results from...

  5. 78 FR 61220 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-03

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... Dassault Aviation Model FALCON 2000 and FALCON 2000EX airplanes. This proposed AD was prompted by...

  6. 77 FR 61539 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-10

    ...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... DASSAULT AVIATION Model FALCON 2000, FALCON 2000EX, MYSTERE- FALCON 900 and FALCON 900EX airplanes; and...

  7. 77 FR 45979 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-02

    ...] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY: Federal Aviation... airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) PA-28, PA-32, PA-34, and PA-44 airplanes. This proposed AD was prompted by reports...

  8. 78 FR 24689 - Airworthiness Directives; PILATUS Aircraft Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Proposed Rules #0... Directives; PILATUS Aircraft Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for all PILATUS Aircraft Ltd. Model PC-7 airplanes. This proposed AD results...

  9. 78 FR 54561 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-05

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Rules and Regulations...-17457; AD 2013-10-04] RIN 2120-AA64 Airworthiness Directives; Piper Aircraft, Inc. Airplanes AGENCY... Aircraft, Inc. Models PA-31, PA-31-325, and PA-31-350 airplanes. Table 1 of paragraph (g) lists...

  10. 77 FR 72250 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-05

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF... Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Aircraft Company Models 172R and 172S airplanes. This proposed AD was prompted by reports of chafing of...

  11. 77 FR 50054 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Proposed Rules #0... Directives; Cessna Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Cessna Aircraft Company Models 172R and 172S airplanes. This proposed AD was prompted by...

  12. 77 FR 57534 - Airworthiness Directives; Piper Aircraft, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... Aircraft, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... all Piper Aircraft, Inc. Models PA-31, PA-31-325, and PA-31-350 airplanes. The existing AD currently... or replacement of parts as necessary. Since we issued that AD, forced landings of aircraft...

  13. 76 FR 67631 - Airworthiness Directives; Cirrus Design Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ] ACTION: Notice of proposed... Corporation (Cirrus) Model SR22T airplanes. This proposed AD was prompted by reports of partial loss of engine... information identified in this proposed AD, contact Cirrus Design Corporation, 4515 Taylor Circle,...

  14. 77 FR 33083 - Airworthiness Directives; WACO Classic Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-05

    ... Aircraft Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule... Aircraft Corporation Models 2T-1A, 2T-1A-1, and 2T-1A-2 airplanes. This AD requires inspection of the front..., contact WACO Classic Aircraft Corporation; 15955 South Airport Rd., Battle Creek, Michigan...

  15. 77 FR 12757 - Airworthiness Directives; Hawker Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... Beechcraft Corporation Models 58 and G58 airplanes. This proposed AD was prompted by installation of... information identified in this proposed AD, contact Hawker Beechcraft Corporation, B091-A04, 10511 E....

  16. 78 FR 42724 - Airworthiness Directives; Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-17

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... certain Beechcraft Corporation Models 1900, 1900C, and 1900D airplanes. AD 2011-27-51 currently requires..., except Federal holidays. For service information identified in this AD, contact Beechcraft Corporation...

  17. 78 FR 65185 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-31

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 727 airplanes. This AD...

  18. 77 FR 12173 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    .... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION...-2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series...

  19. 78 FR 32579 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-31

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION.... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series...

  20. 77 FR 76230 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a..., and -900ER series airplanes. This AD was prompted by reports of escape slides failing to deploy...

  1. 77 FR 22686 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM...-500 series airplanes. This proposed AD was prompted by reports of chem-mill step cracking on the...

  2. Global ideal magnetohydrodynamic stability analysis for the configurational space of Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Nührenberg, Carolin

    1996-06-01

    A survey of the magnetohydrodynamic (MHD) stability properties of three-dimensional (3-D) MHD configurations representing the Wendelstein 7-X (W7-X) stellarator experiment [ G. Grieger et al., Plasma Physics and Controlled Nuclear Fusion Research, 1990 (International Atomic Energy Agency, Vienna, 1991), Vol. 3, p. 525] was performed with the Code for the Analysis for the Stability of 3-D Equilibria (CAS3D) [C. Schwab, Phys. Fluids B 5, 3195 (1993)] . This study confirms and elaborates previous indications on the structural characteristics of global MHD modes in stellarators. In particular these characteristics pertain to the compressibility of these modes, the equivalence of the decoupled stability problems for the modes with different parities, and the separability of global from fine-scale perturbations within the same mode family. As to the W7-X stellarator experiment, the envisaged configurational class—providing the intended experimental flexibility—appears to offer scenarios of safely stable operation.

  3. 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

    ...-200 and -300 Series Airplanes, and Model A340-200, -300, -500 and -600 Series Airplanes AGENCY... Register on July 13, 2010. That AD applies to certain Model A330-200 and -300 series airplanes, and Model A340-200, -300, -500 and -600 series airplanes. A certain service bulletin number in Note 3 of...

  4. 76 FR 24832 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes, A330-300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-03

    ...-201, -202, -203, - 223, and -243 Airplanes, A330-300 Series Airplanes, A340-200 Series Airplanes, and A340-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... some rudders fitted on A330 and A340-200/-300 aeroplanes. An extended de-bonding, if not detected...

  5. 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

    ... is the first airplane manufactured by Learjet Inc. to utilize advanced composite materials in the.... 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...

  6. 78 FR 29426 - Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-20

    ... Federal Aviation Administration Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection: Noise Certification Standards for Subsonic Jet Airplanes and Subsonic Transport Category Large Airplanes AGENCY: Federal Aviation Administration (FAA),...

  7. 78 FR 48540 - Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-08

    ... Federal Aviation Administration Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of Information Collection: Noise Certification Standards for Subsonic Jet Airplanes and Subsonic Transport Category Large Airplanes AGENCY: Federal Aviation Administration (FAA),...

  8. 76 FR 62671 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-11

    ... (TRU) part of the Ram Air Turbine (RAT) system has identified an incorrect design of the part. * * * * * This condition, if not corrected, and if occurring while the RAT is deployed, could result in a... manufacturer of the Transformer Rectifier Unit (TRU) part of the Ram Air Turbine (RAT) system has identified...

  9. 76 FR 480 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-05

    ... failure of the Ram Air Turbine (RAT) heating system. If this failure occurs, it could lead to the freezing of the RAT mechanism and the consequent non-deployment of the RAT when needed. * * * * * Non-deployment of the RAT could result in insufficient electrical power to operate the fly-by-wire system,...

  10. 76 FR 25535 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-05

    ... of the Ram Air Turbine (RAT) heating system. If this failure occurs, it could lead to the freezing of the RAT mechanism [the potential consequence of this heater being inoperative relates primarily to... given airspeed], and the consequent * * * of the RAT when needed. * * * * * Non-functioning of the...

  11. 76 FR 47424 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-05

    .... Dassault Aviation have developed the corresponding Aircraft Flight Manual (AFM) limitations and a placard... with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices... (which corresponds to FAA AD 2011-12-51) which prohibited further flights from its effective date....

  12. 77 FR 18099 - Special Conditions: Dassault Aviation, Model Falcon 7X Airplanes; Seats With Inflatable Shoulder...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-27

    ... Head Injury Criteria (HIC) measurement. The inflatable restraint system behaves similarly to an... does not exceed a HIC of 1000 units. While the test conditions described for HIC are detailed and... inadvertent deployment as a result of wear and tear or inertial loads resulting from in-flight or...

  13. 76 FR 24358 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-02

    ... been determined that in case a short circuit occurs on a weight-on-wheels (WOW) proximity sensor wiring... in person at the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground... case a short circuit occurs on a weight-on-wheels (WOW) proximity sensor wiring, both circuit...

  14. 75 FR 51931 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... airport Upon display of ELEC:LH ESS PWR LO or ELEC:LH ESS NO PWR (Abnormal procedure 3-190-40), land at nearest suitable airport Upon display of ELEC:RH ESS PWR LO and ELEC:RH ESS NO PWR (Abnormal procedure...

  15. 76 FR 37251 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-27

    ...-108-AD; Amendment 39-16735; AD 2011-12-51] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation...; request for comments. SUMMARY: 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...

  16. 75 FR 47247 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-05

    ... requires the reinforcement of the rear fuel tank by bonding a titanium shield plate on the tank structure... Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive...

  17. 75 FR 71528 - Airworthiness Directives; Dassault-Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-24

    ... in fuel leakage and post- landing fire. This AD requires the reinforcement of the rear fuel tank by... 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or negative,...

  18. 76 FR 39256 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-06

    ... potential low clearance between electrical wiring or hydraulic pipe and nearby structure. Although no in... wiring or hydraulic pipe and nearby structure. Although no in service incident has been reported, there..., as well as adequate protection between hydraulic pipe (SB n 0 92) and electrical wiring (SB n...

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

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... product. The MCAI describes the unsafe condition as: Time between overhaul (TBO) of DC generator bearings... Maintenance Manual Chapter 5.40. In service report has shown that the bearing current design cannot sustain... constitute an unsafe condition. Failure of the DC generator bearings could lead to loss of the generator...

  20. 76 FR 36283 - Airworthiness Directives; Dassault Aviation Model FALCON 7X Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ... distance to the ground despite the aircraft was flying at medium or high altitude. A locked radio-altimeter... conditions while the avionic system switches into landing mode during altitude cruise. * * * * * may cause... despite the aircraft was flying at medium or high altitude. A locked radio-altimeter 1 leads to...

  1. 77 FR 16147 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final... the flightcrew's ability to perform critical takeoff communication and result in an aborted takeoff...

  2. 76 FR 27168 - Airmen Transition to Experimental or Unfamiliar Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-10

    ... Federal Aviation Administration Airmen Transition to Experimental or Unfamiliar Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of availability. SUMMARY: The Federal Aviation Administration (FAA) is announcing the availability of Advisory Circular (AC) 90-109, which provides...

  3. 76 FR 70379 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION...-033-AD; RIN 2120-AA64] Airworthiness Directives; Cessna Aircraft Company Airplanes AGENCY: Federal... supersede an existing airworthiness directive (AD) that applies to certain Cessna Aircraft Company...

  4. 78 FR 52870 - Airworthiness Directives; Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-27

    ... Directives; Beechcraft Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Beechcraft Corporation (type certificate previously held by Hawker Beechcraft Corporation) Models... identified in this proposed AD, contact Beechcraft Corporation at address: 10511 E. Central, Wichita,...

  5. 77 FR 64695 - Airworthiness Directives; Hawker Beechcraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-23

    ... Beechcraft Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation..., contact Hawker Beechcraft Corporation, 10511 E. Central Ave., Wichita, Kansas 67206; phone: (316)...

  6. 78 FR 53640 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-30

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION...-014-AD; Amendment 39-17564; AD 2013-16-26] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final...

  7. 76 FR 10288 - Airworthiness Directives; The Boeing Company Model 767-200, -300, -300F, and -400ER Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-24

    ... Model 767-200, -300, -300F, and -400ER Series Airplanes AGENCY: Federal Aviation Administration (FAA... airworthiness directive (AD) that applies to The Boeing Company Model 767-200, -300, and -300F series airplanes..., October 5, 2005), for certain Model 767-200, -300, and -300F series airplanes. That AD...

  8. 76 FR 8612 - Airworthiness Directives; Airbus Model A340-200, -300, -500, and -600 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ...-200, -300, -500, and -600 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department... 2006-09-07, Amendment 39-14577 (71 FR 25919, May 3, 2006), for all Airbus Model A330-200 and -300, and A340-200 and -300 series airplanes, and A340-541 and -642 airplanes. That AD requires operators...

  9. 75 FR 81409 - Airworthiness Directives; The Boeing Company Model 737-200, -300, -400, and -500 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ... repair must meet the certification basis of the airplane. Material Incorporated by Reference (n) You must... Model 737-200, -300, -400, and -500 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT..., -300, -400, and -500 series airplanes. This AD requires repetitive inspections for cracking of...

  10. 75 FR 43809 - Airworthiness Directives; Piper Aircraft, Inc. PA-28, PA-32, PA-34, and PA-44 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-27

    .... PA-28, PA-32, PA- 34, and PA-44 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Aircraft, Inc. (Piper) PA-28, PA-32, PA-34, and PA-44 series airplanes. This AD requires you to inspect the... apply to certain Piper Aircraft, Inc. (Piper) PA-28, PA-32, PA- 34, and PA-44 series airplanes....

  11. Host B7x promotes pulmonary metastasis of breast cancer

    PubMed Central

    Abadi, Yael M.; Jeon, Hyungjun; Ohaegbulam, Kim C.; Scandiuzzi, Lisa; Ghosh, Kaya; Hofmeyer, Kimberly A.; Lee, Jun Sik; Ray, Anjana; Gravekamp, Claudia; Zang, Xingxing

    2013-01-01

    B7x (B7-H4 or B7S1) is an inhibitory member of the B7 family of T cell costimulation. It is expressed in low levels in healthy peripheral tissues such as the lung epithelium, but over-expressed in a variety of human cancers with negative clinical associations including metastasis. However, the function of B7x in the cancer context, whether expressed on cancer cells or on surrounding “host” tissues, has not been elucidated in vivo. We utilized the 4T1 metastatic breast cancer model and B7x knockout (B7x−/−) mice to investigate the effect of host tissue-expressed B7x on cancer. We found that 4T1 cells were B7x negative in vitro and in vivo and B7x−/− mice had significantly fewer lung 4T1 tumor nodules than wildtype mice. Furthermore, B7x−/− mice showed significantly enhanced survival and a memory response to tumor rechallenge. Mechanistic studies revealed that the presence of B7x correlated with reduced general and tumor-specific T cell cytokine responses, as well as with an increased infiltration of immunosuppressive cells, including tumor associated neutrophils (TANs), macrophages, and regulatory T cells into tumor-bearing lungs. Importantly, the TANs strongly bound B7x protein and inhibited proliferation of both CD4 and CD8 T cells. These results suggest that host B7x may enable metastasizing cancer cells to escape local anti-tumor immune responses through interactions with the innate as well as the adaptive immune systems. Targeting the B7x pathway thus holds much promise for improving the efficacy of immunotherapy for metastatic cancer. PMID:23455497

  12. 76 FR 22005 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200 and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ...-16668; AD 2011-09-06] RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes, and Model A340-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration...

  13. Electron Cyclotron Resonance Heating for W7-X

    SciTech Connect

    Michel, G.; Braune, H.; Erckmann, V.; Laqua, H. P.; Marushchenko, N.; Oosterbeek, J. W.; Brand, P.; Kasparek, W.; Gantenbein, G.; Thumm, M.; Weissgerber, M.

    2009-11-26

    The HELIAS-type Stellarator Wendelstein 7-X, which is currently under construction in Greifswald, Germany, will be equipped with a 140 GHz, 10 MW, CW ECRH system. It will be the main plasma heating system for W7-X. The key features and capabilities of the ECRH plant will be discussed together with the envisaged start-up and heating scenarios. We also report on the ECRH stray radiation test facility MISTRAL and on the extension of the gyrotron frequency range.

  14. 77 FR 7007 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-10

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A330-300 series airplanes, Model A340-200 series airplanes; Model A340-300 series airplanes; Model A340-541 airplanes; and Model A340-642 airplanes. This proposed AD was prompted by reports...

  15. The Airplane Experiment.

    ERIC Educational Resources Information Center

    Larson, Lee; Grant, Roderick

    1991-01-01

    Presents an experiment to investigate centripetal force and acceleration that utilizes an airplane suspended on a string from a spring balance. Investigates the possibility that lift on the wings of the airplane accounts for the differences between calculated tension and measured tension on the string. (MDH)

  16. The W7-X ECRH Plant: Recent Achievements

    SciTech Connect

    Erckmann, V.; Braune, H.; Laqua, H. P.; Michel, G.; Weissgerber, M.; Brand, P.; Kasparek, W.; Dammertz, G.; Gantenbein, G.; Schmid, M.; Thumm, M.

    2007-09-28

    The 10 MW, 140 GHz, CW ECRH-plant for W7-X is in an advanced state of commissioning and the installation was used to investigate advanced applications for extended heating- and current drive scenarios. The operation of the TED gyrotrons was recently extended to a 2nd frequency of 103.6 GHz at reduced output power and first results are presented. An improved collector sweep system for the W7-X gyrotrons with enhanced power capability and smooth power distribution was developed, results are reported.

  17. 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.

  18. Gordon Bennett Airplane Cup

    NASA Technical Reports Server (NTRS)

    Margoulis, W

    1921-01-01

    The characteristics of the airplanes built for the Gordon Bennet Airplane Cup race that took place on September 28, 1920 are described. The airplanes are discussed from a aerodynamical point of view, with a number of new details concerning the French machines. Also discussed is the regulation of future races. The author argues that there should be no limitations on the power of the aircraft engines. He reasons that in the present state of things, liberty with regard to engine power does not lead to a search for the most powerful engine, but for one which is reliable and light, thus leading to progress.

  19. 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

    ...-200 and -300 Series Airplanes, and Model A340-300 Series Airplanes AGENCY: Federal Aviation... accomplishing the actions specified in the NPRM (for Model A340-300 series airplanes). We have revised... information for accomplishing the actions specified in the NPRM (for Model A330-200 and A330-300...

  20. Diagnostic strategy of the W7-X stellarator

    NASA Astrophysics Data System (ADS)

    Hartfuss, H. J.; Brakel, R.; Endler, M.; Geist, T.; Grigull, P.; Hofmann, J. V.; Junker, J.; Kick, M.; Kühner, G.; Niedermeyer, H.; Ringler, H.; Teubel, A.; Wagner, F.; Weller, A.

    1997-02-01

    The Wendelstein 7-X experiment is a concept test for properties of reactor relevant plasmas in advanced stellarators. Prominent features include a modular superconducting coil assembly, a fivefold toroidal symmetry, and a helical magnetic axis. Due to the optimization process, W7-X is characterized by a vacuum magnetic field configuration with smooth magnetic surfaces, improved equilibrium properties with a weak dependence of rotational transform and shear on the plasma pressure β, good magneto-hydrodynamic stability properties due to magnetic well stabilization, reduced neoclassical transport losses and negligible bootstrap current in the long mean-free-path regime, good collisionless α-particle confinement in an equivalent reactor, and, as a technical aspect, good feasibility of the superconducting modular coils. W7-X will be heated by continuous electron cyclotron resonance heating and pulsed neutral beam injection and ion cyclotron resonance heating. The envisaged parameters are Te⩽10 keV, Ti⩽6 keV central densities ⩽3×1020 m-3 with an averaged <β>⩽5%. Despite the complicated geometrical structure, all basic diagnostics are compatible with W7-X. Generally, diagnostic methods and applications in a stellarator are not different from those in tokamaks. However, special efforts are being made to equip the experiment with those diagnostics necessary to measure the quantities directly related with the optimization of the machine: the verification of the predicted magnetic topology and characterization of the configuration throughout the entire parameter range, the identification of equilibrium and stability, and the determination of the confinement properties. The article describes the strategy developed which assures that the detailed measurement needs of the W7-X experimental program can be met.

  1. Diagnostic strategy of the W7-X stellarator (abstract)

    NASA Astrophysics Data System (ADS)

    Hartfuss, H. J.; Brakel, R.; Endler, M.; Geist, T.; Grigull, P.; Hofmann, J. V.; Junker, J.; Kick, M.; Kühner, G.; Niedermeyer, H.; Ringler, H.; Teubel, A.; Wagner, F.; Weller, A.

    1997-01-01

    The Wendelstein 7-X experiment is a concept test for properties of reactor relevant plasmas in advanced stellarators. Prominent features include a modular superconducting coil assembly, a five-fold toroidal symmetry, and a helical magnetic axis. Due to the optimization process, W7-X is characterized by a vacuum magnetic field configuration with smooth magnetic surfaces, improved magnetic field configuration with smooth magnetic surfaces, improved equilibrium properties with a weak dependence of rotational transform and shear on the plasma pressure β, good magneto-hydrodynamic stability properties due to magnetic well stabilization, reduced neoclassical transport losses and negligible bootstrap current in the long mean-free-path regime, good collisionless α-particle confinement in an equivalent reactor, and, as a technical aspect, good feasibility of the superconducting modular coils. W7-X will be heated by continuous electron cyclotron resonance heating and pulsed neutral beam injection and ion cyclotron resonance heating. The envisaged parameters are Te⩽10 keV, Ti⩽6 keV central densities ⩽3×1020 m-3 with an averaged <β>⩽5%. Despite the complicated geometrical structure, all basic diagnostics are compatible with W7-X. Generally, diagnostic methods and applications in a stellarator are not different from those in tokamaks. However, special efforts are being made to equip the experiment with those diagnostics necessary to measure the quantities directly related with the optimization of the machine: the verification of the predicted magnetic topology and characterization of the configuration throughout the entire parameter range, the identification of equilibrium and stability, and the determination of the confinement properties. The article describes the strategy developed which assures that the detailed measurement needs of the W7-X experimental program can be met.

  2. 76 FR 62661 - Airworthiness Directives; The Boeing Company Model 767-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-11

    ... Model 767-200 and - 300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... certain Model 767-200 and 767-300 series airplanes. This proposed AD would require installing cargo... (b) None. Applicability (c) This AD applies to The Boeing Company Model 767-200 and 767- 300...

  3. 78 FR 275 - Airworthiness Directives; REIMS Aviation S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-03

    ... Airworthiness Directives; REIMS Aviation S.A. Airplanes AGENCY: Federal Aviation Administration (FAA... adopt a new airworthiness directive (AD) for REIMS AVIATION S.A. Model F406 airplanes. This proposed AD... Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and...

  4. 75 FR 49865 - Extension of Comment Period; Airplane and Engine Certification Requirements in Supercooled Large...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-16

    ... Phase, and Ice Crystal Icing Conditions AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... for transport category airplanes most affected by these icing conditions, mixed phase and ice crystal conditions for all transport category airplanes, and supercooled large drop, mixed phase, and ice...

  5. 77 FR 18141 - Airworthiness Directives; Fokker Services B.V. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-27

    ... Services B.V. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed....V. Model F.28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by a design review which revealed the absence of electrical insulation material between a wing or integral center wing tank...

  6. 76 FR 27239 - Airworthiness Directives; Cessna Aircraft Company (Cessna) Model 172 Airplanes Modified by...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-11

    ... Company (Cessna) Model 172 Airplanes Modified by Supplemental Type Certificate (STC) SA01303WI AGENCY... products listed above. The numbering of paragraphs (j)(3), (j)(4), and (j)(5) in the Material Incorporated... airplane flight manual, and replacing the FADEC backup battery every 12 calendar months for Cessna...

  7. 77 FR 37784 - Airworthiness Directives; Fokker Services B.V. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ... Services B.V. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT....V. Model F.28 Mark 0070 and 0100 airplanes. This AD was prompted by a design review which revealed the absence of electrical insulation material between a wing or integral center wing tank (ICWT)...

  8. 78 FR 69600 - Airworthiness Directives; Piaggio Aero Industries S.p.A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-20

    ... Industries S.p.A Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... (AD) for certain Piaggio Aero Industries S.p.A. Model P-180 airplanes. This proposed AD results from... p.m., Monday through Friday, except Federal holidays. For service information identified in...

  9. 77 FR 35888 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-15

    ... Directives; PIAGGIO AERO INDUSTRIES S.p.A Airplanes AGENCY: Federal Aviation Administration (FAA), Department... new airworthiness directive (AD) for PIAGGIO AERO INDUSTRIES S.p.A. Model P-180 airplanes. This...., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For...

  10. 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...

  11. 75 FR 3660 - Airworthiness Directives; The Boeing Company Model 757 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-22

    ... airplanes. This proposed AD would require repetitive inspections for corrosion and cracking in the front... Model 757 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed... side link support fitting at WS 292. We are proposing this AD to detect and correct such corrosion...

  12. 77 FR 58052 - Airworthiness Directives; GA 8 Airvan (Pty) Ltd Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-19

    ... Directives; GA 8 Airvan (Pty) Ltd Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for GA 8 Airvan (Pty) Ltd Models GA8 and GA8-TC320 airplanes. This proposed AD... unsafe condition as burnt electrical connectors leading to the left-hand wingtip pitot heater, which...

  13. 78 FR 56589 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-13

    ... INDUSTRIES S.p.A Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... INDUSTRIES S.p.A Model P-180 airplanes. This AD results from mandatory continuing airworthiness information...., Washington, DC 20590. For service information identified in this AD, contact Piaggio Aero Industries...

  14. 76 FR 721 - Airworthiness Directives; Gulfstream Aerospace Corporation Model G-1159 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-06

    ... Aerospace Corporation Model G-1159 Airplanes AGENCY: Federal Aviation Administration, DOT. ACTION: Proposed... Aerospace Corporation Model G-1159 airplanes. The existing AD requires an inspection to detect cracks or... is withdrawn. FOR FURTHER INFORMATION CONTACT: Carey O'Kelley, Aerospace Engineer, Airframe...

  15. 76 FR 37684 - Airworthiness Directives; Diamond Aircraft Industries GmbH Model (Diamond) DA 40 Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-28

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Diamond Aircraft Industries GmbH Model (Diamond) DA 40 Airplanes Equipped With Certain Cabin Air Conditioning Systems AGENCY... inspections of the Diamond Model DA 40 airplanes equipped with a VCS installed per Premier Aircraft...

  16. 77 FR 72252 - Airworthiness Directives; Reims Aviation S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-05

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Reims Aviation S.A. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice... Reims Aviation S.A. Model F406 airplanes. This proposed AD results from mandatory...

  17. 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... rulemaking by sending written comments, data, or views. The most helpful comments reference a specific... certificate for its new Gulfstream Model GVI passenger airplane. Gulfstream later applied for, and was...

  18. 76 FR 5505 - Airworthiness Directives; The Boeing Company Model 777-200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-01

    ... Model 777-200 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... Model 777-200 series airplanes. This proposed AD would require installing a new circuit breaker, relays... for the CSCP, ZMU, passenger address controller, cabin interphone controller, CACP, speaker...

  19. 76 FR 71246 - Airworthiness Directives; Piaggio Aero Industries S.p.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-17

    ... Industries S.p.A. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... Industries S.p.A. Model P-180 airplanes. This AD results from mandatory continuing airworthiness information... an aviation product. The MCAI describes the unsafe condition as: Some lock sleeves (part number...

  20. 76 FR 12556 - Airworthiness Directives; Various Transport Category Airplanes Equipped With Chemical Oxygen...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ... Category Airplanes Equipped With Chemical Oxygen Generators Installed in a Lavatory AGENCY: Federal... affected airplanes identified above. This AD requires modifying the chemical oxygen generators in the lavatory. This AD was prompted by reports that the current design of these oxygen generators presents...

  1. 75 FR 82335 - Airworthiness Directives; APEX Aircraft Model CAP 10 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... CAP 10 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... DAROIS-France, telephone: (33) 380 35 65 10; fax: (33) 380 35 65 15; e- mail: apex-aircraft.com . You may...) None. Applicability (c) This AD applies to APEX Aircraft Model CAP 10 airplanes, all serial...

  2. 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

    ... Services B.V. Model F.27 Mark 050 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of.... Applicability (c) This AD applies to Fokker Services B.V. Model F.27 Mark 050 airplanes; certificated in any... and consequent loss of the aeroplane. Compliance (f) You are responsible for having the...

  3. The Bristol "Badminton" Airplane

    NASA Technical Reports Server (NTRS)

    1926-01-01

    The Bristol Badminton, Type 99 airplane has a radial aircooled engine (a Bristol Jupiter 9 cylinder 450 HP.) and three fuel tanks. It is a single seat biplane weighing 1,840 lbs. empty and 2,460 lbs. loaded.

  4. Stall-proof Airplanes

    NASA Technical Reports Server (NTRS)

    Lachmann, G

    1927-01-01

    My lecture has to do with the following questions. Is the danger of stalling necessarily inherent in the airplane in its present form and structure, or can it be diminished or eliminated by suitable means? Do we possess such means or devices and how must they operate? In this connection I will devote special attention to the exhibition of stall-proof airplanes by Fokker under the auspices of the English Air Ministry, which took place in Croyden last April.

  5. 77 FR 69568 - Special Conditions: Bombardier Aerospace, Model BD-500-1A10 and BD-500-1A11 Airplanes; Sidestick...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-20

    ... Aerospace, Model BD-500-1A10 and BD-500-1A11 Airplanes; Sidestick Controllers AGENCY: Federal Aviation... Bombardier Aerospace Model BD-500-1A10 and BD-500-1A11 airplanes are equipped with a sidestick controller... conditions for the Bombardier Aerospace Model BD-500-1A10 and BD-500-1A11 airplanes. These airplanes...

  6. The ICRH System Planned for Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Hartmann, D. A.; Birus, D.; Wendorf, J.; Wesner, F.

    2005-09-01

    The Max-Planck Institute for Plasma Physics is presently building the stellarator experiment Wendelstein 7-X (W7-X) at Greifswald, Germany. First plasma operation in planned after 2010. The plasma will be heated primarily using electron cyclotron resonance heating (ECRH) at a magnetic field of B=2.5 T, but also using ion cyclotron resonance heating (ICRH) and neutral beam injection heating (NBI). The latter heating methods are necessary to study high beta discharges and fast ion confinement. The ICRF system is planned to consist of two radially movable antennas powered by two generators with an output power of 2 MW each. The antenna plasma load will be matched in real time to the generator impedance using ferrite loaded transmission line elements. In addition, 3dB couplers will passively protect the generators from RF power reflections during rapid changes of the antenna plasma load that are too fast for the ferrite matching system.

  7. On the W7-X divertor performance under detached conditions

    NASA Astrophysics Data System (ADS)

    Feng, Y.; Beidler, C. D.; Geiger, J.; Helander, P.; Hölbe, H.; Maassberg, H.; Turkin, Y.; Reiter, D.; W7-X Team

    2016-12-01

    We present a theoretical/numerical predictive analysis of the performance of the W7-X island divertor under conditions of detachment characterized by intensive radiation. The analysis is based on EMC3-Eirene simulations and the earlier W7-AS experimental and numerical experience. Carbon is employed as a representative radiator. The associated drawbacks, i.e. core contamination and recycling degradation (reduced recycling flux), are evaluated by determining the carbon density at the last closed flux surface (LCFS) and the neutral pressure in the divertor chamber. Optimum conditions are explored in both configuration and plasma parameter space. This study aims to identify the key geometric/magnetic and plasma parameters that affect the performance of detached plasmas in W7-X. Emphasis is placed on what occurs when the islands are enlarged far beyond the maximum size available in W7-AS and whether an island size limit for optimal detachment operation exists, and why. Further issues addressed are the power removal ability of the W7-X edge islands, potentially limiting factors, compatibility between particle and power exhaust, and particle refueling capability of the recycling neutrals.

  8. ICRH induced particle losses in Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Faustin, J. M.; Cooper, W. A.; Graves, J. P.; Pfefferlé, D.; Geiger, J.

    2016-07-01

    Fast ions in W7-X will be produced either by neutral beam injection (NBI) or by ion-cyclotron resonant heating (ICRH). The latter presents the advantage of depositing power locally and does not suffer from core accessibility issues (Drevlak et al 2014 Nucl. Fusion 54 073002). This work assesses the possibility of using ICRH as a fast ion source in W7-X relevant conditions. The SCENIC package is used to resolve the full wave propagation and absorption in a three-dimensional plasma equilibrium. The source of the ion-cyclotron range of frequency (ICRF) wave is modelled in this work by an antenna formulation allowing its localisation in both the poloidal and toroidal directions. The actual antenna dimension and localization is therefore approximated with good agreement. The local wave deposition breaks the five-fold periodicity of W7-X. It appears that generation of fast ions is hindered by high collisionality and significant particle losses. The particle trapping mechanism induced by ICRH is found to enhance drift induced losses caused by the finite orbit width of trapped particles. The inclusion of a neoclassically resolved radial electric field is also investigated and shows a significant reduction of particle losses.

  9. 75 FR 46861 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-04

    ...-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental... revised the applicability statement of this supplemental NPRM to remove the Airbus Model A340-200,...

  10. 76 FR 36870 - Special Conditions: Gulfstream Model GVI Airplane; Design Roll Maneuver Requirement for...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ...; Design Roll Maneuver Requirement for Electronic Flight Controls AGENCY: Federal Aviation Administration... electronic flight control system that provides roll control of the airplane through pilot inputs to the flight computers. These special conditions contain the additional safety standards that the...

  11. 77 FR 59873 - Airworthiness Directives; Cessna Aircraft Company Airplanes; Initial Regulatory Flexibility Analysis

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... Directives; Cessna Aircraft Company Airplanes; Initial Regulatory Flexibility Analysis AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Availability of an Initial Regulatory Flexibility Analysis... Flexibility Analysis for the previously published proposed airworthiness directive (AD) on Cessna...

  12. 76 FR 14115 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory...

  13. 78 FR 60995 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of rescheduled public meeting. SUMMARY: This notice announces the rescheduling of a public meeting of the FAA's...

  14. 75 FR 55393 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-10

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  15. 76 FR 60115 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-28

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  16. 77 FR 24759 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-25

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  17. 77 FR 40699 - Aviation Rulemaking Advisory Committee Teleconference on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Teleconference on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public teleconference. SUMMARY: This notice announces a public teleconference of the FAA's Aviation Rulemaking...

  18. 75 FR 10551 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  19. 77 FR 60005 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-01

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  20. 77 FR 59243 - Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-26

    ... Federal Aviation Administration Aviation Rulemaking Advisory Committee Meeting on Transport Airplane and Engine Issues AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of public meeting. SUMMARY: This notice announces a public meeting of the FAA's Aviation Rulemaking Advisory Committee...

  1. 76 FR 54093 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-31

    .... Model DHC-8-400 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of...) For service information identified in this AD, contact Bombardier, Inc., Q-Series Technical Help...

  2. 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... information identified in this proposed AD, contact Bombardier, Inc., Q-Series Technical Help Desk,...

  3. 76 FR 36863 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Systems Security Protection From...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-23

    ... configuration may allow the exploitation of network security vulnerabilities resulting in intentional or...; Electronic Systems Security Protection From Unauthorized External Access AGENCY: Federal Aviation... architecture and connectivity capabilities of the airplane's computer systems and networks, which may...

  4. 76 FR 10529 - Special Conditions: Gulfstream Model GVI Airplane; Electronic Systems Security Protection From...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-25

    ... systems and networks may result in security vulnerabilities to the airplane's systems. The applicable... may allow the exploitation of network security vulnerabilities resulting in intentional or...; Electronic Systems Security Protection From Unauthorized External Access AGENCY: Federal...

  5. Neutron diagnostics at the Wendelstein 7-X stellarator

    NASA Astrophysics Data System (ADS)

    Schneider, W.; Wiegel, B.; Grünauer, F.; Burhenn, R.; Koch, S.; Schuhmacher, H.; Zimbal, A.

    2012-03-01

    The stellarator W7-X, presently under construction at the Institute for Plasma Physics in Greifswald, will be equipped with a set of neutron monitors in order to study the time behaviour of neutron emission generated during D-D plasma operation and neutral beam heating with Deuterium. Each of these neutron monitors consists of several neutron detector tubes inserted in a dedicated moderator. The neutron monitors at W7-X are designed to monitor neutron yields with a time resolution of 5 ms and with a statistical uncertainty of better than 15%. One of the monitors is located in the centre above the stellarator. The other five monitors are distributed around the torus. A prerequisite for the determination of the absolute neutron source strength produced by D(d,n)3He fusion reactions in the plasma is an in-situ calibration with a neutron source of known source strength. During such a calibration procedure, the neutron source will be moved along the torus axis and the count rates of the different neutron monitors will be measured. In a first benchmark experiment, an 241AmBe neutron source was moved along the torus axis within one module of the stellarator and the neutron signals were measured by a De Pangher Long Counter outside of the cryostat chamber as a function of the neutron source position. These measurements have been compared with predictions of Monte Carlo calculations (MCNP) of the neutron propagation from the location of the neutron source to the long counter. The concept of neutron monitors will be reported together with results from the benchmark experiment and results from MCNP calculations. The neutron monitor system is the first part of several neutron diagnostic systems such as neutron activation system, neutron profile camera planned for future neutron analysis. A short survey of these neutron diagnostic tools of W7-X will be given.

  6. Superconducting magnet system for the WENDELSTEIN 7-X Stellarator

    SciTech Connect

    Sapper, Joerg

    1996-12-31

    The WENDELSTEIN 7-X Stellator is a further experiment in the small group of next-step fusion devices in the world. An essential goal of this machine is to demonstrate concept improvement towards the development of fusion devices. The magnet system is designed for optimum stellator plasma performance and the technical layout will allow steady-state plasma operation. The whole magnet is encapsulated by an inner and outer toroidal cryostat tube for cold operation. The schedule for the experimental device aims at a start of technical operation in 2002 and plasma operation two years later. 4 refs., 9 figs.

  7. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  8. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  9. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... § 36.7 Acoustical change: Transport category large airplanes and jet airplanes. (a) Applicability. This section applies to all transport category large airplanes and jet airplanes for which an acoustical...

  10. 77 FR 42952 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-23

    ...-139-AD; Amendment 39-17127; AD 2012-14-13] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes; Model A319-111, -112, -115, - 132, and -133 airplanes; Model A320-214, -232, and -233 airplanes; and Model A321-211, -212, -213, and -231 airplanes. This AD was prompted by reports of some...

  11. 78 FR 15874 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-13

    ...-112-AD; Amendment 39-17372; AD 2013-04-14] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300- 600 series airplanes); and Model A310 series airplanes. This AD was prompted by a report of...

  12. 78 FR 9581 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-11

    ...-052-AD; Amendment 39-17346; AD 2013-03-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This AD was prompted by reports of cracking...

  13. 77 FR 59149 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes. This proposed AD was prompted by reports of...

  14. ECRH and ECCD Experiments at the Wendelstein7-X Stellarator

    NASA Astrophysics Data System (ADS)

    Laqua, Heinrich; Braune, Harald; Hirsch, Matthias; Hoefel, Udo; Marsen, Stefan; Moseev, Dmitry; Stange, Torsten; Wolf, Robert; Wauters, Tom; W7-X Team

    2016-10-01

    Plasmas in the first operation phase OP1.1 of W7-X were exclusively heated by ECRH. 6 gyrotrons with up to 4.3 MW power at 140 GHz and a quasi-optical transmission line generated plasma start-up, heating and wall conditioning with a very high reliability. The central ECRH power deposition enabled highly peaked electron temperature (Te) profiles with a peak Te above 8 keV, ne of 41019m-3 and flat ion temperatures profiles reaching 2 keV. By off-axis ECRH, the absence of core Te profile resilience in W7-X was demonstrated. With ECRH-power modulation heat waves for transport analysis have been generated on a regular basis. First ECCD experiments demonstrated a strong sensitivity of the confinement with sawtooth-like crashes of the central Te profile when central ECCD was applied. The high Te enabled successful demonstration of ECRH in O2-mode only. This scenario is foreseen for high-density operation above the X2-mode cut-off density in the next operation phase. The density control could be recovered by ECRH discharges in helium, which substituted glow discharge when the supra-conducting field coils were charged. The efficiency of ECRH absorption was monitored by diagnostics that measured the unabsorbed part of the ECRH. These also served as plasma interlock, preventing damages by unabsorbed ECRH power.

  15. Test results from the Wendelstein 7-X stellarator demonstration coil

    NASA Astrophysics Data System (ADS)

    Heller, R.; Maurer, W.; Sapper, J.; Schauer, F.; Schönewolf, I.; Ulbricht, A.; Wüchner, F.; Zahn, G.

    2000-08-01

    Wendelstein 7-X (W 7-X) is a stellarator plasma experiment currently under construction in Greifswald, Germany. It is an advanced stellarator with a magnet system consisting of 50 non-planar superconducting main field coils and 20 superconducting planar auxiliary coils in modular toroidal arrangement. The auxiliary system is foreseen for the variation of plasma parameters which allows extensive plasma studies in wide parameter ranges. The characteristic dimensions of a coil are: 3.5 m in height, 2.5 m in width and 1.0 m in thickness. In order to prove the fabricability and the electromagnetic, thermohydraulic and mechanical performance of the coils, a full-size demonstration coil was built by industry and delivered to the Forschungszentrum Karlsruhe for testing. Here, the coil was prepared for installation at the test facility TOSKA beside the EURATOM LCT coil. This coil delivers a background field which allows the simulation of different load cases occurring later in the experimental device. The aim of the test was the investigation of the mechanical properties and behaviour of the bedding between winding block and casing. In this paper, the electromagnetic results obtained during the test will be presented.

  16. 78 FR 33199 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1322; Directorate Identifier 2012-NM-155-AD; Amendment 39-17466; AD 2013-11-06] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  17. 78 FR 47527 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-06

    ... / Tuesday, August 6, 2013 / Rules and Regulations#0;#0; ] DEPARTMENT OF TRANSPORTATION Federal Aviation...-17540; AD 2013-16-02] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request...

  18. 78 FR 44473 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-24

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all DASSAULT AVIATION Model FAN...

  19. 77 FR 60887 - Airworthiness Directives; Alpha Aviation Concept Limited Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-05

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-0798; Directorate Identifier 2012-CE-023-AD; Amendment 39-17208; AD 2012-20-02] RIN 2120-AA64 Airworthiness Directives; Alpha Aviation Concept Limited Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation...

  20. 77 FR 37795 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-0265; Directorate Identifier 2010-NM-216-AD; Amendment 39-17098; AD 2012-12-18] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  1. 78 FR 8052 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-05

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain DASSAULT AVIATION...

  2. 78 FR 68355 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-14

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2013-0626; Directorate Identifier 2012-NM-180-AD; Amendment 39-17642; AD 2013-22-10] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  3. 78 FR 9798 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1037; Directorate Identifier 2012-NM-008-AD; Amendment 39-17347; AD 2013-03-12] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  4. 78 FR 58973 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-25

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all Dassault Aviation Model...

  5. 77 FR 16186 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-20

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain Dassault Aviation Model...

  6. 78 FR 29669 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-21

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to adopt a new airworthiness directive (AD) for all DASSAULT...

  7. 78 FR 73687 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-09

    ... / Monday, December 9, 2013 / Rules and Regulations#0;#0; ] DEPARTMENT OF TRANSPORTATION Federal Aviation...-17697; AD 2013-25-01] RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request...

  8. 77 FR 46946 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-07

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-0269; Directorate Identifier 2011-NM-105-AD; Amendment 39-17140; AD 2012-15-11] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  9. 77 FR 36950 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-20

    ...-36951] [FR Doc No: 2012-15097] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part... Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... rulemaking (NPRM) that proposed a new airworthiness directive (AD) for certain Dassault Aviation Model...

  10. 77 FR 19074 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-1164; Directorate Identifier 2011-NM-084-AD; Amendment 39-17002; AD 2012-06-21] RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  11. 77 FR 3 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-03

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-1061; Directorate Identifier 2011-NM-053-AD; Amendment 39-16908; AD 2011-27-06] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  12. 78 FR 41274 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1067; Directorate Identifier 2011-NM-231-AD; Amendment 39-17444; AD 2013-09-03] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  13. 78 FR 23458 - Airworthiness Directives; Dassault Aviation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-19

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2013-0306; Directorate Identifier 2013-NM-049-AD; Amendment 39-17417; AD 2013-07-13] RIN 2120-AA64 Airworthiness Directives; Dassault Aviation Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  14. 77 FR 12175 - Airworthiness Directives; DASSAULT AVIATION Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-29

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-1166; Directorate Identifier 2010-NM-169-AD; Amendment 39-16941; AD 2012-02-18] RIN 2120-AA64 Airworthiness Directives; DASSAULT AVIATION Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  15. 78 FR 17865 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-25

    ... From the Federal Register Online via the Government Publishing Office #0; #0;Rules and Regulations...-17398; AD 2008-07-11 R1] RIN 2120-AA64 Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes AGENCY...: We are rescinding an airworthiness directive (AD) for all PILATUS AIRCRAFT LTD. Models PC-12,...

  16. 77 FR 64442 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF... AIRCRAFT LTD. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT... are revising an earlier NPRM for all PILATUS AIRCRAFT LTD. Models PC-12, PC-12/45, PC-12/47, and...

  17. 78 FR 38552 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-27

    ... Aircraft Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are superseding AD 2000-04-01 that applies to certain Cessna Aircraft Company (Cessna) Models 172R... in this AD, contact Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, Kansas...

  18. 78 FR 32349 - Airworthiness Directives; Cessna Aircraft Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ... Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551... by adding the following new airworthiness directive (AD): 2013-09-11 Cessna Aircraft...

  19. 77 FR 52205 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are superseding an existing airworthiness directive (AD) for certain Univair Aircraft Corporation Models (ERCO... of a Univair Aircraft Corporation Model ERCO 415-D Ercoupe that crashed after an in-flight ]...

  20. 77 FR 3585 - Airworthiness Directives; Cirrus Design Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-25

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Cirrus Design Corporation (Cirrus) Model SR22T..., contact Cirrus Design Corporation, 4515 Taylor Circle, Duluth, Minnesota 55811- 1548, phone: (218)...

  1. 77 FR 67561 - Airworthiness Directives; Univair Aircraft Corporation Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-13

    ... Corporation Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction.... That AD applies to certain Univair Aircraft Corporation Models (ERCO) 415-C, 415-CD, 415-D, E, G..., dated September 1, 2008, is made in several places throughout the AD for Univair Aircraft...

  2. 78 FR 44871 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-25

    ... / Thursday, July 25, 2013 / Rules and Regulations#0;#0; ] DEPARTMENT OF TRANSPORTATION Federal Aviation...-17516; AD 2013-14-11] RIN 2120-AA64 Airworthiness Directives; Bombardier, Inc. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for...

  3. The evolution of airplanes

    NASA Astrophysics Data System (ADS)

    Bejan, A.; Charles, J. D.; Lorente, S.

    2014-07-01

    The prevailing view is that we cannot witness biological evolution because it occurred on a time scale immensely greater than our lifetime. Here, we show that we can witness evolution in our lifetime by watching the evolution of the flying human-and-machine species: the airplane. We document this evolution, and we also predict it based on a physics principle: the constructal law. We show that the airplanes must obey theoretical allometric rules that unite them with the birds and other animals. For example, the larger airplanes are faster, more efficient as vehicles, and have greater range. The engine mass is proportional to the body size: this scaling is analogous to animal design, where the mass of the motive organs (muscle, heart, lung) is proportional to the body size. Large or small, airplanes exhibit a proportionality between wing span and fuselage length, and between fuel load and body size. The animal-design counterparts of these features are evident. The view that emerges is that the evolution phenomenon is broader than biological evolution. The evolution of technology, river basins, and animal design is one phenomenon, and it belongs in physics.

  4. Longitudinal balancing of airplanes

    NASA Technical Reports Server (NTRS)

    Eteve, Albert

    1923-01-01

    The object of the present communication is to determine the best method for locating the center of lift of an airplane and to provide a method for making corrections. The method employed is very simple, being based on the positions given the elevator during flights at different speeds.

  5. Results from the first operation phase of W7-X

    NASA Astrophysics Data System (ADS)

    Pedersen, Thomas Sunn

    2016-10-01

    This talk will give a review of stellarator physics and the mission of Wendelstein 7-X (W7-X), and will summarize the most important results obtained during its first operation phase, OP1.1, which was completed in March 2016. The HELIAS reactor vision and open issues in stellarator research will also be discussed. The stellarator concept dates back to the 1950's. It has several intrinsic advantages, including being free of current-driven disruptions, and not needing current drive. However, the stellarator has been lagging behind the tokamak with respect to energy confinement. Recent advances in plasma theory and computational power have led to renewed interest in stellarators since they allow a complex but effective optimization of the confinement properties, one that should allow for tokamak-like confinement times. W7-X is the largest and most optimized stellarator in the world, and aims to show that the earlier weaknesses of the stellarator concept have been addressed successfully by optimization, and that the intrinsic advantages of the concept persist, also at plasma parameters approaching those of a future fusion power plant. It is built for steady-state operation, featuring 70 superconducting coils, and a confinement volume of about 30 m3. During OP1.1, it was operated at full field (B = 2.5 T on axis), with ECRH power up to 4.3 MW (later to be extended to 10 MW). Plasma operation was performed with helium and hydrogen, with deuterium planned for later phases. More than 2,000 discharges were created during the 10 operation weeks of OP1.1. Core Te 8 keV and Ti 2 keV were reached in discharge with densities in the low to mid 1019 range, and confinement times were on the order of 100-150 ms, within expectation. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement Number 633053.

  6. The Thomson scattering system at Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Pasch, E.; Beurskens, M. N. A.; Bozhenkov, S. A.; Fuchert, G.; Knauer, J.; Wolf, R. C.

    2016-11-01

    This paper describes the design of the Thomson scattering system at the Wendelstein 7-X stellarator. For the first operation campaign we installed a 10 spatial channel system to cover a radial half profile of the plasma cross section. The start-up system is based on one Nd:YAG laser with 10 Hz repetition frequency, one observation optics, five fiber bundles with one delay line each, and five interference filter polychromators with five spectral channels and silicon avalanche diodes as detectors. High dynamic range analog to digital converters with 14 bit, 1 GS/s are used to digitize the signals. The spectral calibration of the system was done using a pulsed super continuum laser together with a monochromator. For density calibration we used Raman scattering in nitrogen gas. Peaked temperature profiles and flat density profiles are observed in helium and hydrogen discharges.

  7. 76 FR 17758 - Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-31

    .... Model BD-100-1A10 (Challenger 300) Airplanes AGENCY: Federal Aviation Administration (FAA), Department... Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes, having serial numbers (S/Ns) 20001 through..., ``Certification Maintenance Requirements,'' in Part 2 of Chapter 5 of Bombardier Challenger 300 BD-100 Time...

  8. 75 FR 25124 - Airworthiness Directives; The Boeing Company Model 737-200, -300, -400, and -500 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-07

    ... Model 737-200, -300, -400, and -500 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for certain Model 737-200, -300, -400, and -500 series airplanes. This proposed AD would require...) None. Applicability (c) This AD applies to The Boeing Company Model 737-200, -300, - 400, and...

  9. 76 FR 62669 - Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-11

    .... Model BD-100-1A10 (Challenger 300) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... 300 BD-100 Time Limits/Maintenance Checks Manual. The actions described in this service information... all Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes, certificated in any category....

  10. 75 FR 27406 - Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-17

    .... Model BD-100-1A10 (Challenger 300) Airplanes AGENCY: Federal Aviation Administration (FAA), Department... Maintenance Requirements,'' in Part 2 of Chapter 5 of Bombardier Challenger 300 BD- 100 Time Limits.... Applicability (c) This AD applies to Bombardier, Inc. Model BD-100-1A10 (Challenger 300) airplanes,...

  11. 76 FR 28632 - Airworthiness Directives; The Boeing Company Model 737-300, -400, and -500 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-18

    ... Model 737-300, -400, and -500 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT...-300 series airplane experienced a rapid decompression when the lap joint at stringer S-4L between BS... at stringers S-4L and S-4R. This action was prompted by a report indicating that a Model...

  12. 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

    ... Industries S.p.A Model PIAGGIO P-180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Airplane Flight Manual, stating that the towing bar P/N 01-1227-0000 or similar ferromagnetic masses are... maintenance requirements and/or airworthiness limitations developed by Piaggio Aero Industries S.p.A....

  13. 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..., etc. for PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180 airplanes. As published, the...

  14. 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

    ... 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 AGENCY... to or by external network sources. Discussion The Model 747-8/-8F architecture and...

  15. 77 FR 70941 - Special Conditions: Embraer S.A., Model EMB-550 Airplane; Interaction of Systems and Structures

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-28

    ...., Model EMB-550 Airplane; Interaction of Systems and Structures AGENCY: Federal Aviation Administration... feature(s) associated with the interaction of systems and structures. The applicable airworthiness... primary structure is metal with composite empennage and control surfaces. The Model EMB-550 airplane...

  16. 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

    ... Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation... applies to Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category, all... of the aeroplane during landing. * * * * * Compliance (f) You are responsible for having the...

  17. 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

    .... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... (c) This AD applies to Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in... with improved actuators. Actions and Compliance (f) Unless already done, do the following actions....

  18. 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

    .... 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 in... landing roll. Compliance (f) You are responsible for having the actions required by this AD...

  19. 75 FR 69606 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-15

    ... Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation... applies to Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category; all.... * * * * * Compliance (f) You are responsible for having the actions required by this AD performed within the...

  20. 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

    .... 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 with... likely to follow. Compliance (f) You are responsible for having the actions required by this AD...

  1. 76 FR 8618 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 0070 and 0100 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    .... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category, equipped with... follow. Compliance (f) You are responsible for having the actions required by this AD performed...

  2. 76 FR 46 - Airworthiness Directives; Airbus Model A310-203, -204, -222, -304, -322, and -324 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-03

    ...-203, -204, -222, - 304, -322, and -324 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... applies to Model A310-203, -204, -222, -304, -322, and -324 airplanes, certificated in any category, all... (whichever occurs later) Model A310-203, A310-204, and A310- 1 and 2 Prior to the Within 1,500 flight...

  3. 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

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION... Corporation Models B300 and B300C (C-12W) Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... Corporation Models B300 and B300C (C-12W) airplanes. This AD was prompted by an error found in the...

  4. 76 FR 69168 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-08

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., and B4-203 airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes....

  5. B7x and myeloid-derived suppressor cells in the tumor microenvironment

    PubMed Central

    Jeon, Hyungjun; Ohaegbulam, Kim C; Abadi, Yael M; Zang, Xingxing

    2013-01-01

    A new study demonstrates the tumorigenic functions of B7x and reveals a link between B7x and myeloid-derived suppressor cells (MDSCs) within the tumor microenvironment. We propose that the binding of B7x to a hitherto unidentified receptor on MDSCs may stimulate their proliferation and/or immunosuppressive functions, hence promoting tumor growth. PMID:24073367

  6. Exploring Venus by Solar Airplane

    NASA Technical Reports Server (NTRS)

    Landis, Geoffrey A.

    2001-01-01

    A solar-powered airplane is proposed to explore the atmospheric environment of Venus. Venus has several advantages for a solar airplane. At the top of the cloud level, the solar intensity is comparable to or greater than terrestrial solar intensities. The Earthlike atmospheric pressure means that the power required for flight is lower for Venus than that of Mars, and the slow rotation of Venus allows an airplane to be designed for continuous sunlight, with no energy storage needed for night-time flight. These factors mean that Venus is perhaps the easiest planet in the solar system for flight of a long-duration solar airplane.

  7. Automated airplane surface generation

    SciTech Connect

    Smith, R.E.; Cordero, Y.; Jones, W.

    1996-12-31

    An efficient methodology and software axe presented for defining a class of airplane configurations. A small set of engineering design parameters and grid control parameters govern the process. The general airplane configuration has wing, fuselage, vertical tall, horizontal tail, and canard components. Wing, canard, and tail surface grids axe manifested by solving a fourth-order partial differential equation subject to Dirichlet and Neumann boundary conditions. The design variables are incorporated into the boundary conditions, and the solution is expressed as a Fourier series. The fuselage is described by an algebraic function with four design parameters. The computed surface grids are suitable for a wide range of Computational Fluid Dynamics simulation and configuration optimizations. Both batch and interactive software are discussed for applying the methodology.

  8. Sensor equipment of the German earth scientific airplane program

    NASA Technical Reports Server (NTRS)

    Seige, P.

    1975-01-01

    The German airplane program for earth scientific research supports the work of a vast staff of earth scientists from universities and federal agencies. Due to their fields of interest, which are in oceanography, hydrology, geology, ecology, and forestry, five test areas were selected which are spread all over Germany. The sensor package, which was designed in accordance with the requirements of this group of scientists, will be installed in a DO 28 D2 type airplane. The sensor equipment consists of a series of 70-mm cameras having different film/filter combinations, a photogrammetric camera, an infrared radiometer, an 11-channel multispectral line scanner, a LANDSAT-compatible radiometer, and a complex avionic system. Along with the airplane, a truck will be equipped with a set of radiometers and other sensor devices for extensive ground-truth measurement; this also includes a cherry picker.

  9. Airplane Airworthiness; Transport Categories

    DTIC Science & Technology

    1962-09-01

    4b.16 (b). The operatLg conditions expected in service and following procedure which permits considerable obtainable within the time and geograp -ic...116 (c). It is also assumed that the cowl flaps on the inoperative engine will be closed when the airplane enters the third takeoff climb segment with...as for the third takeoff LAnding gear-retracted. flight path climb segment except that maximum Operating engine(s)-takeoff r. p. m. continuous power is

  10. Airplane dopes and doping

    NASA Technical Reports Server (NTRS)

    Smith, W H

    1919-01-01

    Cellulose acetate and cellulose nitrate are the important constituents of airplane dopes in use at the present time, but planes were treated with other materials in the experimental stages of flying. The above compounds belong to the class of colloids and are of value because they produce a shrinking action on the fabric when drying out of solution, rendering it drum tight. Other colloids possessing the same property have been proposed and tried. In the first stages of the development of dope, however, shrinkage was not considered. The fabric was treated merely to render it waterproof. The first airplanes constructed were covered with cotton fabric stretched as tightly as possible over the winds, fuselage, etc., and flying was possible only in fine weather. The necessity of an airplane which would fly under all weather conditions at once became apparent. Then followed experiments with rubberized fabrics, fabrics treated with glue rendered insoluble by formaldehyde or bichromate, fabrics treated with drying and nondrying oils, shellac, casein, etc. It was found that fabrics treated as above lost their tension in damp weather, and the oil from the motor penetrated the proofing material and weakened the fabric. For the most part the film of material lacked durability. Cellulose nitrate lacquers, however were found to be more satisfactory under varying weather conditions, added less weight to the planes, and were easily applied. On the other hand, they were highly inflammable, and oil from the motor penetrated the film of cellulose nitrate, causing the tension of the fabric to be relaxed.

  11. Error field and magnetic diagnostic modeling for W7-X

    SciTech Connect

    Lazerson, Sam A.; Gates, David A.; NEILSON, GEORGE H.; OTTE, M.; Bozhenkov, S.; Pedersen, T. S.; GEIGER, J.; LORE, J.

    2014-07-01

    The prediction, detection, and compensation of error fields for the W7-X device will play a key role in achieving a high beta (Β = 5%), steady state (30 minute pulse) operating regime utilizing the island divertor system [1]. Additionally, detection and control of the equilibrium magnetic structure in the scrape-off layer will be necessary in the long-pulse campaign as bootstrapcurrent evolution may result in poor edge magnetic structure [2]. An SVD analysis of the magnetic diagnostics set indicates an ability to measure the toroidal current and stored energy, while profile variations go undetected in the magnetic diagnostics. An additional set of magnetic diagnostics is proposed which improves the ability to constrain the equilibrium current and pressure profiles. However, even with the ability to accurately measure equilibrium parameters, the presence of error fields can modify both the plasma response and diverter magnetic field structures in unfavorable ways. Vacuum flux surface mapping experiments allow for direct measurement of these modifications to magnetic structure. The ability to conduct such an experiment is a unique feature of stellarators. The trim coils may then be used to forward model the effect of an applied n = 1 error field. This allows the determination of lower limits for the detection of error field amplitude and phase using flux surface mapping. *Research supported by the U.S. DOE under Contract No. DE-AC02-09CH11466 with Princeton University.

  12. W7-X magnetic diagnostics: Performance of the digital integrator

    NASA Astrophysics Data System (ADS)

    Werner, Andreas

    2006-10-01

    In long pulse magnetic fusion experiments the use of conventional magnetic diagnostics is a challenge due to the so-called integrator problem. Magnetic sensors based on pickup coils and flux loops measure the time derivative of magnetic fluxes, and therefore, such signals have to be integrated in time to obtain flux signals. Although alternative methods of magnetic field measurement exist, magnetic flux measurements cannot be substituted due to the required measure of the vector potential integral along the area boundary. In addition, many of the alternative methods are not suited for usage in the harsh environment of a burning plasma experiment. An integrator for 1800s pulse operation in Wendelstein 7-X has been developed based on a chopper input stage and digital integration. Tests have been performed using a 25 turn diamagnetic loop at the WEGA stellarator, which has the capability of running long discharges. An important integrator property, in particular, for coping with radiation induced effects as they will occur in ITER, is the common mode rejection. At present, the integrator appears to be stable within 100μVs/1000s when the common mode input voltage varies within ±1V.

  13. W7-X magnetic diagnostics: Performance of the digital integrator

    SciTech Connect

    Werner, Andreas

    2006-10-15

    In long pulse magnetic fusion experiments the use of conventional magnetic diagnostics is a challenge due to the so-called integrator problem. Magnetic sensors based on pickup coils and flux loops measure the time derivative of magnetic fluxes, and therefore, such signals have to be integrated in time to obtain flux signals. Although alternative methods of magnetic field measurement exist, magnetic flux measurements cannot be substituted due to the required measure of the vector potential integral along the area boundary. In addition, many of the alternative methods are not suited for usage in the harsh environment of a burning plasma experiment. An integrator for 1800 s pulse operation in Wendelstein 7-X has been developed based on a chopper input stage and digital integration. Tests have been performed using a 25 turn diamagnetic loop at the WEGA stellarator, which has the capability of running long discharges. An important integrator property, in particular, for coping with radiation induced effects as they will occur in ITER, is the common mode rejection. At present, the integrator appears to be stable within 100 {mu}V s/1000 s when the common mode input voltage varies within {+-}1 V.

  14. The dedicated ICRH system for the stellarator Wendelstein 7-X

    SciTech Connect

    Ongena, J.; Messiaen, A.; Dumortier, P.; Durodie, F.; Kazakov, Ye. O.; Louche, F.; Schweer, B.; Vervier, M.; Van Eester, D.; Koch, R.; Krivska, A.; Lyssoivan, A.; Van Schoor, M.; Wauters, T.; Borsuk, V.; Neubauer, O.; Schmitz, O.; Altenburg, Y.; Baylard, C.; and others

    2014-02-12

    The current status of the mechanical and electromagnetic design for the ICRF antenna system for W7-X is presented. Two antenna plugins are discussed: one consisting of a pair of straps with pre-matching to cover the first frequency band 25-38 MHz and a second one consisting of two short strap triplets to cover a frequency band around 76 MHz. This paper focusses on the two strap antenna for the lower frequency band. Power coupling of the antenna to a reference plasma profile is studied with the help of the codes TOPICA and Microwave Studio, that deliver the scattering matrix needed for the optimization of the geometric parameters of the straps and antenna box. Radiation power spectra for different phasings of the two straps are obtained using the code ANTITER II and different heating scenarii are discussed. The potential for heating, fast particle generation and current drive is discussed. The problem of RF coupling through the plasma edge and of edge power deposition is summarized. The system contains a prematching capacitor to limit the maximum voltage in the system, and the large mutual coupling between the 2 straps is counterbalanced by the use of a decoupler. The mechanical design highlights the challenges encountered with this antenna: adaptation to a large variety of plasma configurations, the limited space within the port to accommodate the necessary matching components and the watercooling needed for long pulse operation.

  15. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... paragraph (b) of this section: (1) Airplanes with high bypass ratio jet engines. For an airplane that has jet engines with a bypass ratio of 2 or more before a change in type design— (i) The airplane,...

  16. 14 CFR 36.7 - Acoustical change: Transport category large airplanes and jet airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... airplanes and jet airplanes. 36.7 Section 36.7 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... paragraph (b) of this section: (1) Airplanes with high bypass ratio jet engines. For an airplane that has jet engines with a bypass ratio of 2 or more before a change in type design— (i) The airplane,...

  17. Trend of airplane flight characteristics

    NASA Technical Reports Server (NTRS)

    Von Koppen, Joachim

    1933-01-01

    This report describes the development of airplane characteristics since the war and indicates the direction development should take in the immediate future. Some of the major topics include: the behavior of an airplane about its lateral, vertical, and longitudinal axes. Behavior at large angles of attack and landing characteristics are also included.

  18. 77 FR 55163 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... directive (AD) for certain Airbus Model A330-200, A330-300, A340-200, and A340- 300 series airplanes; and Model A340-541 airplanes and Model A340-642 airplanes. That NPRM proposed to require performing...

  19. 78 FR 78694 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ...-223-AD; Amendment 39-17704; AD 2013-25-08] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes, and Model A340-200 and -300 series airplanes. AD 2009-24-09 required a repetitive... ] hydraulic systems on airplanes that have had a certain modification embodied during production or...

  20. 77 FR 63716 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-17

    ...-180-AD; Amendment 39-17213; AD 2012-20-07] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... -112 airplanes; and all Model A319, A320, and A321 series airplanes. That AD currently requires... incorporate revised fuel maintenance and inspection tasks, and adds airplanes to the applicability. This...

  1. 77 FR 48425 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ...-225-AD; Amendment 39-17152; AD 2012-16-05] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... freighter series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted... circuit for the fuel pumps for the center fuel tanks for certain airplanes, and center and rear fuel...

  2. 77 FR 48427 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-14

    ...-209-AD; Amendment 39-17153; AD 2012-16-06] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes and Model A310-203, -204, - 221, and -222 airplanes. This AD was prompted by a report of a... loss of the airplane. DATES: This AD becomes effective September 18, 2012. The Director of the...

  3. 77 FR 37797 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-25

    ...-059-AD; Amendment 39-17092; AD 2012-12-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A330-200 series airplanes; Airbus Model A330-200 Freighter series airplanes; Airbus Model A330-300 series airplanes; Airbus...

  4. 78 FR 59295 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-26

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Model A330-201, -202, -203, -223, - 223F, -243, and -243F Airplanes, Model A330-300 series airplanes, and Model A340-200, A340-300, A340-500, and A340-600 series airplanes. AD 2010-23-12...

  5. 77 FR 60325 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-03

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... series airplanes. For certain airplanes, that NPRM proposed repetitive inspections for cracks of the... Model 318 airplanes from the applicability. That NPRM was prompted by reports of cracks found in...

  6. 14 CFR 23.3 - Airplane categories.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane categories. 23.3 Section 23.3... STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES General § 23.3 Airplane categories. (a) The normal category is limited to airplanes that have a seating configuration, excluding...

  7. 14 CFR 23.3 - Airplane categories.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Airplane categories. 23.3 Section 23.3... STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES General § 23.3 Airplane categories. (a) The normal category is limited to airplanes that have a seating configuration, excluding...

  8. 77 FR 49705 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-17

    .... SUMMARY: We are adopting a new airworthiness directive (AD) for certain Airbus Model A318-112 and -121 airplanes; Model A319-111, -112, -115, - 132, and -133 airplanes; Model A320-214, -232, and -233 airplanes; and Model A321-211, -212, -213, and -231 airplanes. This AD was prompted by reports that some...

  9. 78 FR 5859 - Agency Information Collection Activities: Requests for Comments; Clearance of New Approval of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-28

    ... Office of Management and Budget (OMB) approval for a new information collection. The Federal Aviation... Federal Aviation Administration Agency Information Collection Activities: Requests for Comments; Clearance of New Approval of Information Collection: Critical Parts for Airplane Propellers AGENCY:...

  10. Modelling of the ion cyclotron resonance heating scenarios for W7-X stellarator

    NASA Astrophysics Data System (ADS)

    Kazakov, Ye. O.; Van Eester, D.; Ongena, J.; Fülöp, T.

    2014-02-01

    The construction of the world largest superconducting stellarator Wendelstein 7-X (W7-X) has reached the final stage. One of the main scientific objectives of the W7-X project is to prove experimentally the predicted good confinement of high-energy ions. Ion cyclotron resonance heating (ICRH) system is considered to be installed in W7-X to serve as a localized source of high energy ions. ICRH heating scenarios relevant for hydrogen and deuterium phases of W7-X operation are summarized. The heating efficiency in (3He)-H plasmas is qualitatively analyzed using a modified version of the 1D TOMCAT code able to account for stellarator geometry. The minority ion absorption is shown to be maximized at the helium-3 concentration ˜2% for the typical plasma and ICRH parameters to be available during the initial phase of W7-X.

  11. Modelling of the ion cyclotron resonance heating scenarios for W7-X stellarator

    SciTech Connect

    Kazakov, Ye. O.

    2014-02-12

    The construction of the world largest superconducting stellarator Wendelstein 7-X (W7-X) has reached the final stage. One of the main scientific objectives of the W7-X project is to prove experimentally the predicted good confinement of high-energy ions. Ion cyclotron resonance heating (ICRH) system is considered to be installed in W7-X to serve as a localized source of high energy ions. ICRH heating scenarios relevant for hydrogen and deuterium phases of W7-X operation are summarized. The heating efficiency in ({sup 3}He)-H plasmas is qualitatively analyzed using a modified version of the 1D TOMCAT code able to account for stellarator geometry. The minority ion absorption is shown to be maximized at the helium-3 concentration ∼2% for the typical plasma and ICRH parameters to be available during the initial phase of W7-X.

  12. 75 FR 4710 - Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes and A340-200, -300...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Model A330-200 and -300 Series Airplanes and A340-200, -300, -500, and -600 Series Airplanes AGENCY:...

  13. 75 FR 31282 - Airworthiness Directives; Airbus Model A319-100, A320-200, A321-100, and A321-200 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    ...-100, A320-200, A321- 100, and A321-200 Series Airplanes AGENCY: Federal Aviation Administration (FAA... to certain Airbus Model A319-100, A320-200, A321-100, and A321-200 series airplanes. This AD requires repetitive inspections for corrosion in the inside and outside lower walls of each type A, D, E, and...

  14. The structure of airplane fabrics

    NASA Technical Reports Server (NTRS)

    Walen, E Dean

    1920-01-01

    This report prepared by the Bureau of Standards for the National Advisory Committee for Aeronautics supplies the necessary information regarding the apparatus and methods of testing and inspecting airplane fabrics.

  15. Airplane Upset Training Evaluation Report

    NASA Technical Reports Server (NTRS)

    Gawron, Valerie J.; Jones, Patricia M. (Technical Monitor)

    2002-01-01

    Airplane upset accidents are a leading factor in hull losses and fatalities. This study compared five types of airplane-upset training. Each group was composed of eight, non-military pilots flying in their probationary year for airlines operating in the United States. The first group, 'No aero / no upset,' was made up of pilots without any airplane upset training or aerobatic flight experience; the second group, 'Aero/no upset,' of pilots without any airplane-upset training but with aerobatic experience; the third group, 'No aero/upset,' of pilots who had received airplane-upset training in both ground school and in the simulator; the fourth group, 'Aero/upset,' received the same training as Group Three but in addition had aerobatic flight experience; and the fifth group, 'In-flight' received in-flight airplane upset training using an instrumented in-flight simulator. Recovery performance indicated that clearly training works - specifically, all 40 pilots recovered from the windshear upset. However few pilots were trained or understood the use of bank to change the direction of the lift vector to recover from nose high upsets. Further, very few thought of, or used differential thrust to recover from rudder or aileron induced roll upsets. In addition, recovery from icing-induced stalls was inadequate.

  16. Jet propulsion for airplanes

    NASA Technical Reports Server (NTRS)

    Buckingham, Edgar

    1924-01-01

    This report is a description of a method of propelling airplanes by the reaction of jet propulsion. Air is compressed and mixed with fuel in a combustion chamber, where the mixture burns at constant pressure. The combustion products issue through a nozzle, and the reaction of that of the motor-driven air screw. The computations are outlined and the results given by tables and curves. The relative fuel consumption and weight of machinery for the jet, decrease as the flying speed increases; but at 250 miles per hour the jet would still take about four times as much fuel per thrust horsepower-hour as the air screw, and the power plant would be heavier and much more complicated. Propulsion by the reaction of a simple jet can not compete with air screw propulsion at such flying speeds as are now in prospect.

  17. Cryogenic commissioning, cool down and first magnet operation of Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Nagel, M.; Dhard, C. P.; Bau, H.; Bosch, H.-S.; Meyer, U.; Raatz, S.; Risse, K.; Rummel, T.

    2017-02-01

    The construction of the stellarator fusion experiment Wendelstein 7-X (W7-X) was accomplished in 2014. Commissioning of cryogenic system, first cool down of W7-X cryostat and operation of the magnet system was achieved. First plasma operation was accomplished 10th of December 2015. W7-X consists of a magnet system with 70 superconducting coils inside a cryostat. The cold mass of 456 tons is cooled with a helium plant with an equivalent refrigeration power of 7 kW at 4.5 K. The paper presents the commissioning of the cryogenic system, the cool down of the cryostat and first steady state operation with currents up to 12.8 kA. Helium temperatures, mass flow rates and pressure drops inside W7-X cooling circuits are as expected allowing safe magnet operation. Heat loads on the thermal shield and on the superconducting coils are lower than specified for the cryostat design.

  18. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  19. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  20. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  1. Structure and Cancer Immunotherapy of the B7 Family Member B7x

    PubMed Central

    Jeon, Hyungjun; Vigdorovich, Vladimir; Garrett-Thomson, Sarah C.; Janakiram, Murali; Ramagopal, Udupi A.; Abadi, Yael M.; Lee, Jun Sik; Scandiuzzi, Lisa; Ohaegbulam, Kim C; Chinai, Jordan M; Zhao, Ruihua; Yao, Yu; Mao, Ying; Sparano, Joseph A.; Almo, Steven C.; Zang, Xingxing

    2014-01-01

    SUMMARY B7x (B7-H4 or B7S1) is a member of the B7 family that can inhibit T cell function. B7x protein is absent in most normal human tissues and immune cells, but is overexpressed in human cancers and often correlates with negative clinical outcome. The expression pattern and function of B7x suggest that it may be a potent immunosuppressive pathway in human cancers. Here we determined the crystal structure of human B7x IgV domain at 1.59Å resolution and mapped the epitopes recognized by monoclonal antibodies. We developed a new in vivo system to screen therapeutic monoclonal antibodies against B7x, and found that the clone 1H3 significantly inhibited growth of B7x-expressing tumor in vivo via multiple mechanisms. Furthermore, the surviving mice given 1H3 treatment were resistant to tumor re-challenge. Our data suggest that targeting B7x on tumors is a promising cancer immunotherapy and humanized 1H3 may be efficacious for immunotherapy of human cancers. PMID:25437562

  2. 78 FR 46543 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-01

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-300 series airplanes and Model A340-200 and -300 series airplanes. This proposed AD was prompted by reports of...

  3. 78 FR 28159 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes...: We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A300 series airplanes; Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F...

  4. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 121.605 Section 121.605..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  5. 14 CFR 121.605 - Airplane equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane equipment. 121.605 Section 121.605..., FLAG, AND SUPPLEMENTAL OPERATIONS Dispatching and Flight Release Rules § 121.605 Airplane equipment. No person may dispatch or release an airplane unless it is airworthy and is equipped as prescribed in §...

  6. 77 FR 16492 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. This proposed AD was prompted by reports that some nuts installed on the wing, including on... the airplane wings being impaired. DATES: We must receive comments on this proposed AD by May 7,...

  7. 78 FR 37498 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... Freighter, and -300 series airplanes. This proposed AD was prompted by a report that a certain wire harness... resulting in an uncontrolled fire and subsequent loss of the airplane. DATES: We must receive comments...

  8. 14 CFR 125.93 - Airplane limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane limitations. 125.93 Section 125.93...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements § 125.93...

  9. 14 CFR 125.93 - Airplane limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane limitations. 125.93 Section 125.93...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane Requirements § 125.93...

  10. 78 FR 14029 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-04

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes..., A319-112, A319-115, A319-132, and A319-133 airplanes. This proposed AD was prompted by a report that a...-14 lower shell panel, was not installed on airplanes during production. This proposed AD...

  11. 78 FR 19085 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ...-234-AD; Amendment 39-17399; AD 2013-06-03] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321 series airplanes. This AD was prompted by reports of oil residue between the stator and the rotor... airplane. DATES: This AD becomes effective May 3, 2013. The Director of the Federal Register approved...

  12. 78 FR 7261 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-01

    ...-070-AD; Amendment 39-17332; AD 2013-02-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes.... SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A310-203 airplanes. This... Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone (425) 227-2125; fax...

  13. 77 FR 19067 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ...-047-AD; Amendment 39-16992; AD 2012-06-11] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... A321-131, -211, -212, and -231 airplanes. This AD requires a rotating probe inspection for cracking of..., International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton,...

  14. 78 FR 49915 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ...-147-AD; Amendment 39-17528; AD 2013-15-12] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes... airplanes. AD 2004-15-07 required repetitive inspections for fatigue cracking of the area around the...-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone...

  15. 78 FR 28152 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-14

    ...: We propose to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model A318-111 and -112 airplanes, Model A319 series airplanes, Model A320 series airplanes, and Model A321... relevant data, views, or arguments about this proposed AD. Send your comments to an address listed...

  16. 77 FR 58336 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    ... could lead to a breach through the door or the door detaching from the airplane, resulting in potential... airplane or have a breach through the door, resulting in potential decompression. Required actions include... leading to failure of the door, which could detach from the airplane or have a breach through the...

  17. Free-boundary ideal MHD stability of W7-X divertor equilibria

    NASA Astrophysics Data System (ADS)

    Nührenberg, C.

    2016-07-01

    Plasma configurations describing the stellarator experiment Wendelstein 7-X (W7-X) are computationally established taking into account the geometry of the test-divertor unit and the high-heat-flux divertor which will be installed in the vacuum chamber of the device (Gasparotto et al 2014 Fusion Eng. Des. 89 2121). These plasma equilibria are computationally studied for their global ideal magnetohydrodynamic (MHD) stability properties. Results from the ideal MHD stability code cas3d (Nührenberg 1996 Phys. Plasmas 3 2401), stability limits, spatial structures and growth rates are presented for free-boundary perturbations. The work focusses on the exploration of MHD unstable regions of the W7-X configuration space, thereby providing information for future experiments in W7-X aiming at an assessment of the role of ideal MHD in stellarator confinement.

  18. Air resistance measurements on actual airplane parts

    NASA Technical Reports Server (NTRS)

    Weiselsberger, C

    1923-01-01

    For the calculation of the parasite resistance of an airplane, a knowledge of the resistance of the individual structural and accessory parts is necessary. The most reliable basis for this is given by tests with actual airplane parts at airspeeds which occur in practice. The data given here relate to the landing gear of a Siemanms-Schuckert DI airplane; the landing gear of a 'Luftfahrzeug-Gesellschaft' airplane (type Roland Dlla); landing gear of a 'Flugzeugbau Friedrichshafen' G airplane; a machine gun, and the exhaust manifold of a 269 HP engine.

  19. Applicability of Heavy Ion Beam Probing for Stellarator W7-X

    SciTech Connect

    Perfilov, S.; Melnikov, A.; Krupnik, L.; Hartfuss, H. J.

    2006-01-15

    The feasibility study for HIBP on the stellarator W7-X was done to provide the measurements of the radial profiles of plasma potential, density and their fluctuations. Calculations of probing Tl+ beam trajectories were done for the various W7-X magnetic configurations with B0 = 2.5 T. They show that satisfactory access is possible for A11-N11 port combinations. The trajectory optimisation aiming for the maximal plasma observation was done for chosen port combination.

  20. Phenotypic and physiological characterization of the epibiotic interaction between TM7x and its basibiont Actinomyces

    PubMed Central

    Bor, Batbileg; Poweleit, Nicole; Bois, Justin S.; Cen, Lujia; Bedree, Joseph K.; Zhou, Z. Hong; Gunsalus, Robert P.; Lux, Renate; McLean, Jeffrey S.; He, Xuesong; Shi, Wenyuan

    2015-01-01

    Despite many examples of obligate epibiotic symbiosis (one organism living on the surface of another) in nature, such an interaction has rarely been observed between two bacteria. Here, we further characterize a newly reported interaction between a human oral obligate parasitic bacterium TM7x (cultivated member of Candidatus Saccharimonas formerly Candidate Phylum TM7), and its basibiont Actinomyces odontolyticus species (XH001), providing a model system to study epiparasitic symbiosis in the domain Bacteria. Detailed microscopic studies indicate that both partners display extensive morphological changes during symbiotic growth. XH001 cells manifested as short rods in monoculture, but displayed elongated and hyphal morphology when physically associated with TM7x. Interestingly, these dramatic morphological changes in XH001 were also induced in oxygen-depleted conditions, even in the absence of TM7x. Targeted qRT-PCR analyses revealed that both the physical association with TM7x as well as oxygen depletion triggered up-regulation of key stress response genes in XH001, and in combination, these conditions act in an additive manner. TM7x and XH001 co-exist with relatively uniform cell morphologies under nutrient-replete conditions. However, upon nutrient depletion, TM7x-associated XH001 displayed a variety of cell morphologies, including swollen cell body, clubbed ends and even cell lysis, and a large portion of TM7x cells transformed from ultrasmall cocci into elongated cells. Our study demonstrates a highly dynamic interaction between epibiont TM7x and its basibiont XH001 in response to physical association or environmental cues such as oxygen level and nutritional status, as reflected by their morphological and physiological changes during symbiotic growth. PMID:26597961

  1. Selective ECR heating of trapped/passing electrons in the W7-X stellarator

    SciTech Connect

    Marushchenko, N. B.; Erckmann, V.; Beidler, C. D.; Geiger, J.; Laqua, H. P.; Helander, P.; Maassberg, H.; Turkin, Y.

    2014-02-12

    Using specific features of the magnetic equilibrium in the W7-X stellarator, ECRH scenarios with X2 and X3 modes are discussed. The aim is to explore the possibility of selective heating of the different classes of electrons, passing and trapped, by different RF beams with different frequencies, which can be launched from ports located in different crosssections of the device. Perspectives for this kind of experiments in W7-X are estimated numerically by coupling transport and ray tracing codes.

  2. 75 FR 82134 - Agency Information Collection Activities: Requests for Comments; Clearance of Renewed Approval of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-29

    ... Collection(s): Mitsubishi MU-2B Series Airplane Special Training, Experience, and Operating Procedures AGENCY... request is for Mitsubishi MU-2B Series Airplane Special Training, Experience, and Operating Requirements....gov . SUPPLEMENTARY INFORMATION: OMB Control Number: 2120-0725. Title: Mitsubishi MU-2B...

  3. 77 FR 47267 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-08

    ... Model 747-200B series airplanes having a stretched upper deck. The existing AD currently requires...-300, 747-400, and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched..., and 747-400D series airplanes; and Model 747-200B series airplanes having a stretched upper...

  4. 77 FR 5195 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-02

    ... series airplanes; and Model 747-200B series airplanes having a stretched upper deck. The original NPRM...; and Model 747-200B series airplanes having a stretched upper deck. The original NPRM was published in... series airplanes; and Model 747-200B series airplanes having a stretched upper deck; certificated in...

  5. 76 FR 55296 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-07

    .... Model DHC-8-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... been found cracked on DHC-8 Series 300 aircraft. Investigation revealed that the failure of the support... metal have been found cracked on DHC-8 Series 300 aircraft. Investigation revealed that the failure...

  6. 75 FR 52290 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... Directives; Bombardier, Inc. Model DHC-8-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA... found cracked on DHC-8 Series 300 aircraft. Investigation revealed that the failure of the support... sheet metal have been found cracked on DHC-8 Series 300 aircraft. Investigation revealed that...

  7. 76 FR 18038 - Airworthiness Directives; Airbus Model A340-200 and -300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ...-200 and -300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... condition on an aviation product. The MCAI describes the unsafe condition as: Two A340-300 aeroplanes... ``the MCAI''), to correct an unsafe condition for the specified products. The MCAI states: Two...

  8. 75 FR 81420 - Airworthiness Directives; Bombardier, Inc. Model DHC-8-300 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-28

    ..., Inc. Model DHC-8-300 Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... support brackets that were manufactured using sheet metal have been found cracked on DHC-8 Series 300... been found cracked on DHC-8 Series 300 aircraft. Investigation revealed that the failure of the...

  9. 77 FR 20522 - Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-05

    ... Corporation/Lockheed Martin Aeronautics Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011-385-1, L-1011-385-1-14, and L-1011... information identified in this AD, contact Lockheed Martin Corporation/Lockheed Martin Aeronautics...

  10. 75 FR 32863 - Airworthiness Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-10

    ... flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and... October 15, 2009, into the normal procedures section of the aircraft flight manual (AFM). (ii) Within 12... Directives; PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes AGENCY: Federal Aviation Administration...

  11. 78 FR 32363 - Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ... Directives; PIAGGIO AERO INDUSTRIES S.p.A Airplanes AGENCY: Federal Aviation Administration (FAA), Department... propose to rescind an airworthiness directive (AD) for PIAGGIO AERO INDUSTRIES S.p.A. Model P-180...-140, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday...

  12. 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

    ... INDUSTRIES S.p.A. Model P- 180 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM...: 2010-03-04 PIAGGIO AERO INDUSTRIES S.p.A.: Amendment 39-16187; Docket No. FAA-2009-1081;...

  13. 78 FR 33197 - Airworthiness Directives; Iniziative Industriali Italiane S.p.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-04

    ... Industriali Italiane S.p.A. Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule... Industriali Italiane S.p.A. Models Sky Arrow 650 TC, Sky Arrow 650 TCN, Sky Arrow 650TCS, and Sky Arrow...., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For...

  14. 78 FR 21072 - Airworthiness Directives; B-N Group Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-09

    ... Directives; B-N Group Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for B-N Group Ltd. Models BN-2, BN-2A, BN2A MK. III, BN2A MK. III-2, BN2A MK. III-3... further information by examining the MCAI in the AD docket. Relevant Service Information B-N Group...

  15. 76 FR 8919 - Airworthiness Directives; DASSAULT AVIATION Model MYSTERE-FALCON 50 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-16

    ... Model MYSTERE-FALCON 50 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...: On two occurrences on Myst re-Falcon 50 aeroplanes in service, it was detected that two pipes of the...-30, West Building Ground Floor, Room W12-40, 1200 New Jersey Avenue, SE., Washington, DC, between 9...

  16. 76 FR 36392 - Airworthiness Directives; Gulfstream Aerospace Corporation Model GV and GV-SP Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-22

    ... Aerospace Corporation Model GV and GV-SP Airplanes AGENCY: Federal Aviation Administration (FAA), DOT... Gulfstream Aerospace Corporation, Technical Publications Dept., P.O. Box 2206, Savannah, Georgia 31402-2206..., Aerospace Engineer, Continued Operational Safety and Certificate Management Branch, ACE- 102A, FAA,...

  17. 77 FR 66409 - Airworthiness Directives; Diamond Aircraft Industries GmbH Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-05

    ... Directives; Diamond Aircraft Industries GmbH Airplanes AGENCY: Federal Aviation Administration (FAA... adopt a new airworthiness directive (AD) for Diamond Aircraft Industries GmbH Model H-36, HK 36 R, HK 36... identified in this proposed AD, contact Diamond Aircraft Industries GmbH, N.A. Otto-Stra e 5, A-2700...

  18. 78 FR 19088 - Airworthiness Directives; REIMS AVIATION S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1346; Directorate Identifier 2012-CE-047-AD; Amendment 39-17401; AD 2013-06-04] RIN 2120-AA64 Airworthiness Directives; REIMS AVIATION S.A. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

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

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-02

    ... 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 of...) originated by an aviation authority of another country to identify and correct an unsafe condition on...

  20. 78 FR 11978 - Airworthiness Directives; Reims Aviation S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-21

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1274; Directorate Identifier 2012-CE-042-AD; Amendment 39-17359; AD 2013-04-02] RIN 2120-AA64 Airworthiness Directives; Reims Aviation S.A. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION:...

  1. 78 FR 70200 - Airworthiness Directives; AQUILA-Aviation by Excellence AG Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-25

    ... Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2013-0963; Directorate Identifier 2013-CE-034-AD; Amendment 39-17663; AD 2013-23-08] RIN 2120-AA64 Airworthiness Directives; AQUILA--Aviation by Excellence AG Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request...

  2. 78 FR 76248 - Special Conditions: Airbus, Model A350-900 Series Airplane; Side Stick Controller

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-17

    ... also appropriate for the Model A350-900 series side stick controller. Applicability As discussed above...; ] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 25 Special Conditions: Airbus, Model A350-900 Series Airplane; Side Stick Controller AGENCY: Federal Aviation Administration (FAA),...

  3. 78 FR 67077 - Special Conditions: Airbus, Model A350-900 Series Airplane; Side Stick Controllers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... Federal Aviation Administration 14 CFR Part 25 Special Conditions: Airbus, Model A350-900 Series Airplane; Side Stick Controllers AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed special conditions. SUMMARY: This action proposes special conditions for the Airbus Model A350-900...

  4. 76 FR 50 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-03

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Model A310 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  5. 76 FR 39035 - Airworthiness Directives; Airbus Model A310 Series Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-05

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Airbus Model A310 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of...

  6. 75 FR 45075 - Airworthiness Directives; Eclipse Aerospace, Inc. Model EA500 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-02

    ... Directives; Eclipse Aerospace, Inc. Model EA500 Airplanes AGENCY: Federal Aviation Administration (FAA... Register on July 9, 2010 (75 FR 39472), and applies to certain Eclipse Aerospace, Inc. (Eclipse) Model... Reduction Modification per any revision level of Eclipse SB 500-99-001'' instead of ``000039 through...

  7. 76 FR 20493 - Airworthiness Directives; Fokker Services B.V. Model F.27 Mark 050 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-13

    .... Model F.27 Mark 050 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of.... Affected ADs (b) None. Applicability (c) This AD applies to Fokker Services B.V. Model F.27 Mark 050... resulting in fuel leakage and, in combination with other factors, a fuel fire. Compliance (f) You...

  8. 77 FR 19148 - Special Conditions: Airbus, A350-900 Series Airplane; Crew Rest Compartments

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ...-900 Series Airplane; Crew Rest Compartments AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... separate Crew Rest Compartments: a Flight Crew Rest Compartment (FCRC) intended to be occupied by flight crew members only, and a Cabin Crew Rest Compartment (CCRC) intended to be occupied by cabin...

  9. Paper Airplanes: A Classroom Activity

    ERIC Educational Resources Information Center

    Painter, Richard A.

    1976-01-01

    A learning experience is described for upper elementary or junior high students involving the manufacture, transportation, and marketing of a product for consumers. Steps are given and roles are assigned for students to convert raw material (paper) to a finished product (paper airplanes) and to sell it. (AV)

  10. The Testing of Airplane Fabrics

    NASA Technical Reports Server (NTRS)

    Schraivogel, Karl

    1932-01-01

    This report considers the determining factors in the choice of airplane fabrics, describes the customary methods of testing and reports some of the experimental results. To sum up briefly the results obtained with the different fabrics, it may be said that increasing the strength of covering fabrics by using coarser yarns ordinarily offers no difficulty, because the weight increment from doping is relatively smaller.

  11. Vibration Response of Airplane Structures

    NASA Technical Reports Server (NTRS)

    Theodorsen, Theodore; Gelalles, A G

    1935-01-01

    This report presents test results of experiments on the vibration-response characteristics of airplane structures on the ground and in flight. It also gives details regarding the construction and operation of vibration instruments developed by the National Advisory Committee for Aeronautics.

  12. Testing a Windmill Airplane ("autogiro")

    NASA Technical Reports Server (NTRS)

    Seiferth, R

    1927-01-01

    In order to clear up the matter ( In the Spanish report it was stated that the reference surface for the calculation of the coefficients c(sub a) and c(sub w) was the area of all four wings, instead of a single wing), the model of a windwill airplane was tested in the Gottingen wind tunnel.

  13. Glues Used in Airplane Parts

    NASA Technical Reports Server (NTRS)

    Allen, S W; Truax, T R

    1920-01-01

    This report was prepared for the National Advisory Committee for Aeronautics and presents the results of investigations conducted by the Forest Products Laboratory of the United States Forest Service on the manufacture, preparation, application, testing and physical properties of the different types of glues used in wood airplane parts.

  14. 14 CFR 121.207 - Provisionally certificated airplanes: Operating limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Provisionally certificated airplanes... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.207 Provisionally certificated airplanes: Operating limitations....

  15. 14 CFR 121.207 - Provisionally certificated airplanes: Operating limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Provisionally certificated airplanes... AND OPERATIONS OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.207 Provisionally certificated airplanes: Operating limitations....

  16. B7x: A widely expressed B7 family member that inhibits T cell activation

    PubMed Central

    Zang, Xingxing; Loke, P'ng; Kim, Jayon; Murphy, Kenneth; Waitz, Rebecca; Allison, James P.

    2003-01-01

    B7 family proteins provide costimulatory signals that regulate T cell responses. Here we report the third set of B7 family-related T cell inhibitory molecules with the identification of a homolog of the B7 family, B7x. It is expressed in immune cells, nonlymphoid tissues, and some tumor cell lines. B7x inhibits cell-cycle progression, proliferation, and cytokine production of both CD4+ and CD8+ T cells. B7x binds a receptor that is expressed on activated, but not resting T cells that is distinct from known CD28 family members. Its receptor may be a recently identified inhibitory molecule, B and T lymphocyte attenuator. These studies identify a costimulatory pathway that may have a unique function in downregulation of tissue-specific autoimmunity and antitumor responses. PMID:12920180

  17. A Universal Portable Appliance for Stellarator W7-X Power Supply Controlling

    NASA Astrophysics Data System (ADS)

    Xu, Wei-hua; Wolfgang, Foerster; Guenter, Mueller

    2001-06-01

    In the project Wendelstein 7-X (W7-X), the popular fieldbus Profibus has been determined as a uniform connection between the central control system and all the subordinate systems. A universal embedded control system has been developed for W7-X power supply controlling. Siemens 80C167CR microcontroller is used as the central control unit of the system. With a user-defined printed circuit board (PCB) several control buses, i.e., Profibus, CAN, IEEE 488, RS485 and RS 232 have been connected to the microcontroller. The corresponding hardware interfaces for the control buses have been designed. A graphic liquid crystal display(LCD) and a user-defined keyboard are used as user interface. The control software will be developed with a C-like language, i.e., C166 for the controller.

  18. Annoyance caused by propeller airplane flyover noise

    NASA Technical Reports Server (NTRS)

    Mccurdy, D. A.; Powell, C. A.

    1984-01-01

    Laboratory experiments were conducted to provide information on quantifying the annoyance response of people to propeller airplane noise. The items of interest were current noise metrics, tone corrections, duration corrections, critical band corrections, and the effects of engine type, operation type, maximum takeoff weight, blade passage frequency, and blade tip speed. In each experiment, 64 subjects judged the annoyance of recordings of propeller and jet airplane operations presented at d-weighted sound pressure levels of 70, 80, and 90 dB in a testing room which simulates the outdoor acoustic environment. The first experiment examined 11 propeller airplanes with maximum takeoff weights greater than or equal to 5700 kg. The second experiment examined 14 propeller airplanes weighting 5700 kg or less. Five jet airplanes were included in each experiment. For both the heavy and light propeller airplanes, perceived noise level and perceived level (Stevens Mark VII procedure) predicted annoyance better than other current noise metrics.

  19. Interaction Between Air Propellers and Airplane Structures

    NASA Technical Reports Server (NTRS)

    Durand, W F

    1927-01-01

    The purpose of this investigation was the determination of the character and amount of interaction between air propellers as usually mounted on airplanes and the adjacent parts of the airplane structure - or, more specifically, those parts of the airplane structure within the wash of the propeller, and capable of producing any significant effect on propeller performance. In report no. 177 such interaction between air propellers and certain simple geometrical forms was made the subject of investigation and report. The present investigation aims to carry this general study one stage further by substituting actual airplane structures for the simple geometrical forms. From the point of view of the present investigation, the airplane structures, viewed as an obstruction in the wake of the propeller, must also be viewed as a necessary part of the airplane and not as an appendage which might be installed or removed at will. (author)

  20. Headache during airplane travel ("airplane headache"): first case in Greece.

    PubMed

    Kararizou, Evangelia; Anagnostou, Evangelos; Paraskevas, George P; Vassilopoulou, Sofia D; Naoumis, Dimitrios; Kararizos, Grigoris; Spengos, Konstantinos

    2011-08-01

    Headache related to airplane flights is rare. We describe a 37-year-old female patient with multiple intense, jabbing headache episodes over the last 3 years that occur exclusively during airplane flights. The pain manifests during take-off and landing, and is located always in the left retro-orbital and frontotemporal area. It is occasionally accompanied by dizziness, but no additional symptoms occur. Pain intensity diminishes and disappears after 15-20 min. Apart from occasional dizziness, no other symptoms occur. The patient has a history of tension-type headache and polycystic ovaries. Blood tests and imaging revealed no abnormalities. Here, we present the first case in Greece. We review the current literature on this rare syndrome and discuss on possible pathophysiology and the investigation of possible co-factors such as anxiety and depression.

  1. 77 FR 73908 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-12

    ... displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the... airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to...

  2. The 10 MW ECRH and CD System for W7-X

    NASA Astrophysics Data System (ADS)

    Erckmann, V.; Braune, H.; Laqua, H. P.; Michel, G.; Dammertz, G.; Thumm, M.; Gantenbein, G.; Kasparek, W.; Mueller, G. A.

    2003-12-01

    Electron Cyclotron Resonance Heating (ECRH) is the main heating method for the Wendelstein 7-X Stellarator (W7-X), which is the next step device in the stellarator line of IPP and is presently under construction in the Greifswald branch of IPP. The experiment aims at demonstrating the inherent steady state capability of stellarators at reactor relevant plasma parameters. W7-X (major radius 5.5 m, minor radius 0.55 m) is equipped with a superconducting coil system operating at 3 T for steady state operation and a divertor for 10 MW steady state heat removal. A 10 MW ECRH plant with CW-capability at 140 GHz is under construction to meet the scientific objectives. The microwave power is generated by 10 gyrotrons with 1 MW each. A European R&D program aiming at the development of a prototype gyrotron for W7-X has been successfully terminated by fall of 2002. A prototype gyrotron with the same specifications was developed for W7-X at CPI (USA). Test results and limitations are reported. The distinct microwave beams from each gyrotron are combined and transmitted to the W7-X Stellarator ports by an open quasi-optical transmission system with high transmission efficiency, which runs at normal pressure and consists of water cooled imaging mirrors. Cold tests of a full size, uncooled prototype line and the related RF-diagnostics are presented. The microwave power is launched to the plasma through 10 synthetic diamond barrier windows and in-vessel quasi-optical plug-in launchers, which allow an independent steering of each beam. The commissioning of the ECRH plant is well under way and the status is presented.

  3. Crash Tests of Protective Airplane Floors

    NASA Technical Reports Server (NTRS)

    Carden, H. D.

    1986-01-01

    Energy-absorbing floors reduce structural buckling and impact forces on occupants. 56-page report discusses crash tests of energy-absorbing aircraft floors. Describes test facility and procedures; airplanes, structural modifications, and seats; crash dynamics; floor and seat behavior; and responses of anthropometric dummies seated in airplanes. Also presents plots of accelerations, photographs and diagrams of test facility, and photographs and drawings of airplanes before, during, and after testing.

  4. Flight flutter testing the B-58 airplane

    NASA Technical Reports Server (NTRS)

    Mahaffey, P. T.

    1975-01-01

    The flight flutter tests on the B-58 airplane are described, and the philosophy of flight flutter testing is discussed. The instrumentation used in the airplane and in the telemetering receiving station on the ground is described along with the methods used for exciting the airplane and the flight test procedure. Also described is the type of data obtained and its reduction. An evaluation of the procedure and instrumentation is given with a discussion of desirable improvements for future testing.

  5. Analysis of Stresses in German Airplanes

    NASA Technical Reports Server (NTRS)

    Hoff, Wilhelm

    1923-01-01

    This report contains an account of the origin of the views and fundamental principles underlying the construction of German airplanes during the war. The report contains a detailed discussion of the aerodynamic principles and their use in determining the strength of airplanes, the analysis of the strength qualities of materials and in the construction, the calculated strength of air flows and a description of tests made in determining the strength of airplanes.

  6. Low resistivity contacts to YBa2Cu3O(7-x) superconductors

    NASA Technical Reports Server (NTRS)

    Hsi, Chi-Shiung; Haertling, Gene H.

    1991-01-01

    Silver, gold, platinum, and palladium metals were investigated as electroding materials for the YBa2Cu3O(7-x) superconductors. Painting, embedding, and melting techniques were used to apply the electrodes. Contact resistivities were determined by: (1) type of electrode; (2) firing conditions; and (3) application method. Electrodes fired for long times exhibited lower contact resistivities than those fired for short times. Low-resistivity contacts were found for silver and gold electrodes. Silver, which made good ohmic contact to the YBa2Cu3O(7-x) superconductor with low contact resistivities was found to be the best electroding material among the materials evaluated in this investigation.

  7. Methods for measuring 1/1 error field in Wendelstein 7-X stellarator

    NASA Astrophysics Data System (ADS)

    Bozhenkov, S. A.; Lazerson, S.; Otte, M.; Gates, D. A.; Pedersen, T. Sunn; Wolf, R. C.

    2016-07-01

    Wendelstein 7-X is an optimized helical axis stellarator that came into operation at the end of 2015. A m/n  =  5/5 island chain is used in most of its configurations to form a divertor. This island chain at \

  8. Binding of glycine and L-cysteine on Si(111)-7 x 7.

    PubMed

    Huang, Jing Yan; Ning, Yue Sheng; Yong, Kian Soon; Cai, Ying Hui; Tang, Hai Hua; Shao, Yan Xia; Alshahateet, Solhe F; Sun, Yue Ming; Xu, Guo Qin

    2007-05-22

    The adsorption of glycine and l-cysteine on Si(111)-7 x 7 was investigated using high-resolution electron energy loss spectroscopy (HREELS) and X-ray photoelectron spectroscopy (XPS). The observation of the characteristic vibrational modes and electronic structures of NH3+ and COO- groups for physisorbed glycine (l-cysteine) demonstrates the formation of zwitterionic species in multilayers. For chemisorbed molecules, the appearance of nu(Si-H), nu(Si-O), and nu(C=Omicron) and the absence of nu(O-H) clearly indicate that glycine and l-cysteine dissociate to produce monodentate carboxylate adducts on Si(111)-7 x 7. XPS results further verified the coexistence of two chemisorption states for each amino acid, corresponding to a Si-NH-CH2-COO-Si [Si-NHCH(CH2SH)COO-Si] species with new sigma-linkages of Si-N and Si-O, and a NH2-CH2-COO-Si [NH2CH(CH2SH)COO-Si] product through the cleavage of the O-H bond, respectively. Glycine/Si(111)-7 x 7 and l-cysteine/Si(111)-7 x 7 can be viewed as model systems for further modification of Si surfaces with biological molecules.

  9. Forming YBa2Cu3O7-x Superconductors On Copper Substrates

    NASA Technical Reports Server (NTRS)

    Mackenzie, J. Devin; Young, Stanley G.

    1991-01-01

    Experimental process forms layer of high-critical-temperature ceramic superconductor YBa2Cu3O7-x on surface of copper substrate. Offers possible solution to problem of finishing ceramic superconductors to required final sizes and shapes (difficult problem because these materials brittle and cannot be machined or bent). Further research necessary to evaluate superconducting qualities of surface layers and optimize process.

  10. Tissue-expressed B7x Affects the Immune Response and Outcome to Lethal Pulmonary Infection

    PubMed Central

    Hofmeyer, Kimberly A; Scandiuzzi, Lisa; Ghosh, Kaya; Pirofski, Liise-Anne; Zang, Xingxing

    2012-01-01

    B7x (B7-H4 or B7S1), a member of the B7 family, inhibits in vitro T cell proliferation and cytokine production by binding to an unidentified receptor on activated T cells, but its in vivo function remains largely unclear. We show that B7x protein was expressed in epithelial cells of the lung, but not in lymphoid tissues. To investigate the role of B7x in the lung, we determined the susceptibility of B7x deficient (B7x−/−) mice to a lethal pulmonary infection with Streptococcus pneumoniae. B7x−/−, but not B7-H3 deficient, mice were significantly more resistant to S. pneumoniae pulmonary infection than their wild-type (Wt) counterparts. B7x−/− mice had significantly lower bacterial burdens and levels of inflammatory cytokines in lungs as early as 12 hours post-infection. They also had milder immunopathology that was localized in alveolar spaces, while Wt mice had severe inflammation that was perivascular. Control of infection in B7x−/− mice was associated with a marked increase in activated CD4 and CD8 T cells and fewer neutrophils in lungs, whereas the susceptible Wt mice had the opposite cellular profile. In B7x−/−Rag1−/− mice that lack T cells, reduction in bacterial burden was no longer observed. Control of S. pneumoniae and the increased survival observed was specific to the lung, as systemically infected B7x−/− mice were not resistant to infection. These data indicate that lung-expressed B7x negatively regulates T cells and that in its absence, in B7x−/− mice, an enhanced T cell response contributed to reduced lethality in a pulmonary infection model with S. pneumoniae. PMID:22855708

  11. 77 FR 65799 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-31

    ... electrical power generation, could result in reduced control of the airplane. DATES: This AD becomes... total engine flame out, or during a total loss of normal electrical power generation, could possibly... power generation, could result in reduced control of the airplane. (f) Compliance You are...

  12. 78 FR 68347 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-14

    ... solution, EASA issued Emergency AD 2009-0012-E to require implementation of an aircraft Flight Manual (AFM..., Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing... airplanes. AD 2009-04-07 required revising the airplane flight manual (AFM) to include...

  13. 78 FR 15279 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-11

    ... mode, in case of go-around, might lead to a temporary loss of airplane longitudinal control. This AD... an erroneous indication. These tests concluded that with engaged flare and retard mode, in case of go... case of go-around, might lead to a temporary loss of airplane longitudinal control. We are issuing...

  14. 14 CFR 125.355 - Airplane equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355...

  15. 14 CFR 125.355 - Airplane equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane equipment. 125.355 Section 125.355...: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Flight Release Rules § 125.355...

  16. 77 FR 1622 - Airworthiness Directives; Socata Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-11

    ... INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa... information to ATTN: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room...

  17. 78 FR 72834 - Airworthiness Directives; SOCATA Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-04

    ... INFORMATION CONTACT: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090; email: albert.mercado@faa...: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas...

  18. Research on the control of airplanes

    NASA Technical Reports Server (NTRS)

    Jones, B Melvill

    1928-01-01

    Our task is to endeavor to obtain precise experimental records of the motion of stalled airplanes, both when left to themselves and when the pilot is trying to control them. The apparatus which we use consists of a box containing tree gyroscopes which are slightly deflected against a spring control when the airplane is turning.

  19. 78 FR 78705 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-27

    ... the first option would give operators a chance to fly a ferry flight to a more equipped resourced base... airplanes to a base where repairs, alterations, or maintenance can be performed. These airplanes may not....S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do...

  20. 78 FR 32345 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ... sufficient structural strength to enable the airplane to operate safely. This AD requires reinforcing the... sides of the aeroplane) may not have sufficient structural strength to enable the aeroplane to operate... have sufficient structural strength to enable the airplane to operate safely. We are issuing this AD...

  1. 78 FR 26720 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    ... airplanes. The existing AD requires, for certain airplanes, an inspection to determine the material of an..., dated December 22, 2010, but airplane groups were changed based on the material composition of the.... The proposed AD would add, for certain airplanes, an inspection to determine material type of...

  2. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft that was not type certificated with an Airplane or Rotorcraft Flight...

  3. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 1 2013-01-01 2013-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  4. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  5. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 1 2012-01-01 2012-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. (a) With each airplane or rotorcraft not type certificated with an Airplane or Rotorcraft Flight Manual...

  6. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  7. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  8. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  9. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  10. 14 CFR 91.853 - Final compliance: Civil subsonic airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Final compliance: Civil subsonic airplanes... Noise Limits § 91.853 Final compliance: Civil subsonic airplanes. Except as provided in § 91.873, after... airplane subject to § 91.801(c) of this subpart, unless that airplane has been shown to comply with Stage...

  11. 14 CFR 91.821 - Civil supersonic airplanes: Noise limits.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Civil supersonic airplanes: Noise limits... Noise Limits § 91.821 Civil supersonic airplanes: Noise limits. Except for Concorde airplanes having... airplane that does not comply with Stage 2 noise limits of part 36 in effect on October 13, 1977,...

  12. 14 CFR 125.75 - Airplane flight manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane flight manual. 125.75 Section 125... OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6... Airplane flight manual. (a) Each certificate holder shall keep a current approved Airplane Flight Manual...

  13. 14 CFR 91.853 - Final compliance: Civil subsonic airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Final compliance: Civil subsonic airplanes... Noise Limits § 91.853 Final compliance: Civil subsonic airplanes. Except as provided in § 91.873, after... airplane subject to § 91.801(c) of this subpart, unless that airplane has been shown to comply with Stage...

  14. 75 FR 69745 - Aging Airplane Program: Widespread Fatigue Damage

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-15

    ...This final rule amends FAA regulations pertaining to certification and operation of transport category airplanes to prevent widespread fatigue damage in those airplanes. For certain existing airplanes, the rule requires design approval holders to evaluate their airplanes to establish a limit of validity of the engineering data that supports the structural maintenance program (LOV). For future......

  15. 77 FR 2437 - Special Conditions: Gulfstream Aerospace Corporation, Model GVI Airplane; Rechargeable Lithium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-18

    ... Administration 14 CFR Part 25 Special Conditions: Gulfstream Aerospace Corporation, Model GVI Airplane... conditions are issued for the Gulfstream Aerospace Corporation (GAC) Model GVI airplane. This airplane...

  16. Measured moments of inertia of 32 airplanes

    NASA Technical Reports Server (NTRS)

    Gracey, William

    1940-01-01

    A compilation of the experimentally determined moments of inertia of 32 airplanes is presented. The measurements were obtained at the laboratories of the naca by means of a pendulum method. The airplanes tested are representative of several types of aircraft of gross weight less than 10,000 pounds. The results are presented in coefficient as well as in dimensional form. An elementary analysis of the data disclosed the possibility of grouping the results according to wing type of the airplane, as low-wing monoplanes, parasol and high-wing monoplanes, and biplanes. The data are shown to provide a convenient means of rapidly estimating the moments of inertia of other airplanes. A three view drawing of each of the 32 airplanes is included.

  17. Optimal back-to-front airplane boarding.

    PubMed

    Bachmat, Eitan; Khachaturov, Vassilii; Kuperman, Ran

    2013-06-01

    The problem of finding an optimal back-to-front airplane boarding policy is explored, using a mathematical model that is related to the 1+1 polynuclear growth model with concave boundary conditions and to causal sets in gravity. We study all airplane configurations and boarding group sizes. Optimal boarding policies for various airplane configurations are presented. Detailed calculations are provided along with simulations that support the main conclusions of the theory. We show that the effectiveness of back-to-front policies undergoes a phase transition when passing from lightly congested airplanes to heavily congested airplanes. The phase transition also affects the nature of the optimal or near-optimal policies. Under what we consider to be realistic conditions, optimal back-to-front policies lead to a modest 8-12% improvement in boarding time over random (no policy) boarding, using two boarding groups. Having more than two groups is not effective.

  18. The FAA aging airplane program plan for transport aircraft

    NASA Technical Reports Server (NTRS)

    Curtis, Dayton; Lewis, Jess

    1992-01-01

    The Federal Aviation Administration (FAA) Aging Airplane Program is focused on five program areas: maintenance, transport airplanes, commuter airplanes, airplane engines, and research. These programs are complementary and concurrent, and have been in effect since 1988. The programs address the aging airplane challenge through different methods, including policies, procedures, and hardware development. Each program is carefully monitored and its progress tracked to ensure that the needs of the FAA, the industry, and the flying public are being met.

  19. Study of deposition of YBa2Cu3O7-x on cubic zirconia

    NASA Technical Reports Server (NTRS)

    Warner, Joseph D.; Meola, Joseph E.; Jenkins, Kimberly A.

    1989-01-01

    Films of YBa2Cu3O7-x were grown on (100) cubic zirconia with 8 percent yttria by laser ablation from sintered targets of YBa2Cu3O7-x. The temperature of the zirconia substrate during growth was varied between 700 and 780 C. The atmosphere during growth was 170 mtorr of O2. The films were subsequently slowly cooled in-situ in 1 atm of O2. The best films were c-axis aligned and had a transition temperature of 87.7 K. The superconducting transition temperature and the X-ray diffraction analysis is reported as a function of the substrate temperature and of the angle between the laser beam and the target's normal.

  20. Water-cooled target modules for steady-state operation of the W7-X divertor

    NASA Astrophysics Data System (ADS)

    Boscary, J.; Greuner, H.; Czerwinski, M.; Mendelevitch, B.; Pfefferle, K.; Renner, H.

    2003-09-01

    The stellarator WENDELSTEIN 7-X (W7-X) includes water-cooled plasma facing components (PFCs) to allow steady-state operation and to provide an efficient particle and power exhaust up to 10 MW for a maximum pulse duration of 30 min. Ten divertor units are arranged along the helical edge of the fivefold periodic plasma column. The three-dimensional shape and positioning of the target surfaces are optimized to address physics issues for a wide range of experimental parameters, which influence the topology of the boundary. The three-dimensional target surfaces are reproduced by a series of consecutive plane target elements as a set of parallel water-cooled elements positioned onto the frameworks of target modules. The design and arrangement of target modules and elements are described.

  1. Synthetic plasma edge diagnostics for EMC3-EIRENE, highlighted for Wendelstein 7-X.

    PubMed

    Frerichs, H; Effenberg, F; Schmitz, O; Biedermann, C; Feng, Y; Jakubowski, M; König, R; Krychowiak, M; Lore, J; Niemann, H; Pedersen, T S; Stephey, L; Wurden, G A

    2016-11-01

    Interpretation of spectroscopic measurements in the edge region of high-temperature plasmas can be a challenge since line of sight integration effects make direct interpretation in terms of quantitative, local emission strengths often impossible. The EMC3-EIRENE code-a 3D fluid edge plasma and kinetic neutral gas transport code-is a suitable tool for full 3D reconstruction of such signals. A versatile synthetic diagnostic module has been developed recently which allows the realistic 3D setup of various plasma edge diagnostics to be captured. We highlight these capabilities with two examples for Wendelstein 7-X (W7-X): a visible camera for the analysis of recycling, and a coherent-imaging system for velocity measurements.

  2. Neoclassical calculations for W7-X OP1.1 parameters

    NASA Astrophysics Data System (ADS)

    Landreman, Matt; Alonso, A.; Beidler, C. D.; Bozhenkov, S.; Dinklage, A.; Fuchert, G.; Geiger, J.; Hirsch, M.; Krämer-Flecken, A.; Langenberg, A.; Maassberg, H.; Mollén, A.; Pablant, N.; Pasch, E.; Satake, S.; Smith, H. M.; Traverso, P.; Turkin, Y.; Valson, P.; Velasco, J. L.; Windisch, T.; Zhang, D.; W7-X Team

    2016-10-01

    Neoclassical calculations are carried out for W7-X OP1.1 plasmas with the SFINCS code, using experimental profiles of ne, Te, and Ti. An electron root solution is found in the inner part of the plasma, consistent with measurements. Calculations are performed using a variety of assumptions for the plasma's impurity composition. Impurities modestly reduce the bootstrap current, and if a flat Zeff profile is assumed, the impurity particle flux profile resembles the Er profile due to dominance of the associated thermodynamic force. Variations of quantities on flux surfaces computed with SFINCS are also presented. The incompressible-ExB approximation is found to be quite accurate for W7-X parameters.

  3. Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X

    SciTech Connect

    Bosch, H.-S.; Wolf, R. C.; Andreeva, T.; Cardella, A; Erckmann, V.; Gantenbein, G; Hathiramani, D; Kasparek, W; Klinger, T.; Koenig, R; Kornejew, P; Laqua, H P; Lechte, C; Michel, G; Peacock, A.; Sunn Pedersen, T; Thumm, M; Turkin, Yu.; Wegener, Lutz; Werner, A.; Zhang, D; Beidler, C.; Bozhenkov, S.; Brown, T.; Geiger, J.; Harris, Jeffrey H; Heitzenroeder, P.; Lumsdaine, Arnold; Maassberg, H.; Marushchenko, N B; Neilson, G. H.; Otte, M; Rummel, Thomas; Spong, Donald A; Tretter, Jorg

    2013-01-01

    The next step in the Wendelstein stellarator line is the large superconducting device Wendelstein 7-X, currently under construction in Greifswald, Germany. Steady-state operation is an intrinsic feature of stellarators, and one key element of the Wendelstein 7-X mission is to demonstrate steady-state operation under plasma conditions relevant for a fusion power plant. Steady-state operation of a fusion device, on the one hand, requires the implementation of special technologies, giving rise to technical challenges during the design, fabrication and assembly of such a device. On the other hand, also the physics development of steady-state operation at high plasma performance poses a challenge and careful preparation. The electron cyclotron resonance heating system, diagnostics, experiment control and data acquisition are prepared for plasma operation lasting 30 min. This requires many new technological approaches for plasma heating and diagnostics as well as new concepts for experiment control and data acquisition.

  4. Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Bosch, H.-S.; Wolf, R. C.; Andreeva, T.; Baldzuhn, J.; Birus, D.; Bluhm, T.; Bräuer, T.; Braune, H.; Bykov, V.; Cardella, A.; Durodié, F.; Endler, M.; Erckmann, V.; Gantenbein, G.; Hartmann, D.; Hathiramani, D.; Heimann, P.; Heinemann, B.; Hennig, C.; Hirsch, M.; Holtum, D.; Jagielski, J.; Jelonnek, J.; Kasparek, W.; Klinger, T.; König, R.; Kornejew, P.; Kroiss, H.; Krom, J. G.; Kühner, G.; Laqua, H.; Laqua, H. P.; Lechte, C.; Lewerentz, M.; Maier, J.; McNeely, P.; Messiaen, A.; Michel, G.; Ongena, J.; Peacock, A.; Pedersen, T. S.; Riedl, R.; Riemann, H.; Rong, P.; Rust, N.; Schacht, J.; Schauer, F.; Schroeder, R.; Schweer, B.; Spring, A.; Stäbler, A.; Thumm, M.; Turkin, Y.; Wegener, L.; Werner, A.; Zhang, D.; Zilker, M.; Akijama, T.; Alzbutas, R.; Ascasibar, E.; Balden, M.; Banduch, M.; Baylard, Ch.; Behr, W.; Beidler, C.; Benndorf, A.; Bergmann, T.; Biedermann, C.; Bieg, B.; Biel, W.; Borchardt, M.; Borowitz, G.; Borsuk, V.; Bozhenkov, S.; Brakel, R.; Brand, H.; Brown, T.; Brucker, B.; Burhenn, R.; Buscher, K.-P.; Caldwell-Nichols, C.; Cappa, A.; Cardella, A.; Carls, A.; Carvalho, P.; Ciupiński, Ł.; Cole, M.; Collienne, J.; Czarnecka, A.; Czymek, G.; Dammertz, G.; Dhard, C. P.; Davydenko, V. I.; Dinklage, A.; Drevlak, M.; Drotziger, S.; Dudek, A.; Dumortier, P.; Dundulis, G.; Eeten, P. v.; Egorov, K.; Estrada, T.; Faugel, H.; Fellinger, J.; Feng, Y.; Fernandes, H.; Fietz, W. H.; Figacz, W.; Fischer, F.; Fontdecaba, J.; Freund, A.; Funaba, T.; Fünfgelder, H.; Galkowski, A.; Gates, D.; Giannone, L.; García Regaña, J. M.; Geiger, J.; Geißler, S.; Greuner, H.; Grahl, M.; Groß, S.; Grosman, A.; Grote, H.; Grulke, O.; Haas, M.; Haiduk, L.; Hartfuß, H.-J.; Harris, J. H.; Haus, D.; Hein, B.; Heitzenroeder, P.; Helander, P.; Heller, R.; Hidalgo, C.; Hildebrandt, D.; Höhnle, H.; Holtz, A.; Holzhauer, E.; Holzthüm, R.; Huber, A.; Hunger, H.; Hurd, F.; Ihrke, M.; Illy, S.; Ivanov, A.; Jablonski, S.; Jaksic, N.; Jakubowski, M.; Jaspers, R.; Jensen, H.; Jenzsch, H.; Kacmarczyk, J.; Kaliatk, T.; Kallmeyer, J.; Kamionka, U.; Karaleviciu, R.; Kern, S.; Keunecke, M.; Kleiber, R.; Knauer, J.; Koch, R.; Kocsis, G.; Könies, A.; Köppen, M.; Koslowski, R.; Koshurinov, J.; Krämer-Flecken, A.; Krampitz, R.; Kravtsov, Y.; Krychowiak, M.; Krzesinski, G.; Ksiazek, I.; Kubkowska, M.; Kus, A.; Langish, S.; Laube, R.; Laux, M.; Lazerson, S.; Lennartz, M.; Li, C.; Lietzow, R.; Lohs, A.; Lorenz, A.; Louche, F.; Lubyako, L.; Lumsdaine, A.; Lyssoivan, A.; Maaßberg, H.; Marek, P.; Martens, C.; Marushchenko, N.; Mayer, M.; Mendelevitch, B.; Mertens, Ph.; Mikkelsen, D.; Mishchenko, A.; Missal, B.; Mizuuchi, T.; Modrow, H.; Mönnich, T.; Morizaki, T.; Murakami, S.; Musielok, F.; Nagel, M.; Naujoks, D.; Neilson, H.; Neubauer, O.; Neuner, U.; Nocentini, R.; Noterdaeme, J.-M.; Nührenberg, C.; Obermayer, S.; Offermanns, G.; Oosterbeek, H.; Otte, M.; Panin, A.; Pap, M.; Paquay, S.; Pasch, E.; Peng, X.; Petrov, S.; Pilopp, D.; Pirsch, H.; Plaum, B.; Pompon, F.; Povilaitis, M.; Preinhaelter, J.; Prinz, O.; Purps, F.; Rajna, T.; Récsei, S.; Reiman, A.; Reiter, D.; Remmel, J.; Renard, S.; Rhode, V.; Riemann, J.; Rimkevicius, S.; Riße, K.; Rodatos, A.; Rodin, I.; Romé, M.; Roscher, H.-J.; Rummel, K.; Rummel, Th.; Runov, A.; Ryc, L.; Sachtleben, J.; Samartsev, A.; Sanchez, M.; Sano, F.; Scarabosio, A.; Schmid, M.; Schmitz, H.; Schmitz, O.; Schneider, M.; Schneider, W.; Scheibl, L.; Scholz, M.; Schröder, G.; Schröder, M.; Schruff, J.; Schumacher, H.; Shikhovtsev, I. V.; Shoji, M.; Siegl, G.; Skodzik, J.; Smirnow, M.; Speth, E.; Spong, D. A.; Stadler, R.; Sulek, Z.; Szabó, V.; Szabolics, T.; Szetefi, T.; Szökefalvi-Nagy, Z.; Tereshchenko, A.; Thomsen, H.; Thumm, M.; Timmermann, D.; Tittes, H.; Toi, K.; Tournianski, M.; Toussaint, U. v.; Tretter, J.; Tulipán, S.; Turba, P.; Uhlemann, R.; Urban, J.; Urbonavicius, E.; Urlings, P.; Valet, S.; Van Eester, D.; Van Schoor, M.; Vervier, M.; Viebke, H.; Vilbrandt, R.; Vrancken, M.; Wauters, T.; Weissgerber, M.; Weiß, E.; Weller, A.; Wendorf, J.; Wenzel, U.; Windisch, T.; Winkler, E.; Winkler, M.; Wolowski, J.; Wolters, J.; Wrochna, G.; Xanthopoulos, P.; Yamada, H.; Yokoyama, M.; Zacharias, D.; Zajac, J.; Zangl, G.; Zarnstorff, M.; Zeplien, H.; Zoletnik, S.; Zuin, M.

    2013-12-01

    The next step in the Wendelstein stellarator line is the large superconducting device Wendelstein 7-X, currently under construction in Greifswald, Germany. Steady-state operation is an intrinsic feature of stellarators, and one key element of the Wendelstein 7-X mission is to demonstrate steady-state operation under plasma conditions relevant for a fusion power plant. Steady-state operation of a fusion device, on the one hand, requires the implementation of special technologies, giving rise to technical challenges during the design, fabrication and assembly of such a device. On the other hand, also the physics development of steady-state operation at high plasma performance poses a challenge and careful preparation. The electron cyclotron resonance heating system, diagnostics, experiment control and data acquisition are prepared for plasma operation lasting 30 min. This requires many new technological approaches for plasma heating and diagnostics as well as new concepts for experiment control and data acquisition.

  5. The superconducting coil system of the advanced modular stellarator Wendelstein 7-X

    SciTech Connect

    Maurer, W.

    1994-11-01

    Wendelstein 7-X (W 7-X) is the largest stellarator experiment envisaged worldwide. It is prepared in the Max-Planck-Institute for Plasma Physics in Garching near Munich, Germany. The main goal of the experiment is demonstration of the optimized stellarator concept as an appropriate route for a fusion reactor. Essential physics and technical goals of this experiment are: demonstration of stationary operation, achievement of plasma parameters which allow a reliable prediction of the properties of a future stellarator reactor plasma without striving for ignition, and generation of the magnetic confinement with superconducting modular coils in a stellarator for the first time. The optimization criteria of the coil system are described and the status of the engineering development programme for the coils which is a common task of IPP and the nuclear research center KfK in Karlsruhe are reported.

  6. Thermoelectric properties of Nb3SbxTe7-x compounds

    NASA Technical Reports Server (NTRS)

    Snyder, J.; Wang, S.; Caillat, T.

    2002-01-01

    Niobium antimony telluride, Nb3Sbx,Te7-x, was synthesized and tested for thermoelectric properties in the Thermoelectrics group at the Jet Propulsion Laboratory. The forty atoms per unit cell of Nb3Sb2Te5 and its varied mixture of atoms yield acomplicated structure, suggesting that Nb3Sb2Te5 and related compounds may exhibit low thermal conductivity and hence a higher ZT value. Nb3SbxTe7-x, compounds were synthesized and subsequently analyzed for their Seebeck voltage, heat conduction, and electrical resistivity. Results indicate that Nb3Sb2Te5 is a heavily doped semiconductor whose thermoelectric properties are compromised by compensating n-type and p-type carriers. Attempts to dope in favor of either carrier by varying the Sb:Te ratio yielded samples containing secondary metallic phases that dominated the transport properties of the resulting compounds.

  7. Landing and Braking of Airplanes

    NASA Technical Reports Server (NTRS)

    Breguet, Louis

    1929-01-01

    In the numerical examples, we have considered an airplane landing in calm air in a fixed direction after crossing the border (with its obstacles) at a height of 30 m. Its stopping point is at a distance D from the obstacle, comprising: a distance D(sub 1) in regular gliding flight; a distance D(sub 2) in levelling off; a distance D(sub 3) in taxying on the ground. The calculations enable us to make out the following table, which gives an idea of the improvements to be expected in the use of various possible methods of braking in the air and on the ground.

  8. Mo(3)Sb(7-x)Te(x) for Thermoelectric Power Generation

    NASA Technical Reports Server (NTRS)

    Snyder, G. Jeffrey; Gascoin, Frank S.; Rasmussen, Julia

    2009-01-01

    Compounds having compositions of Mo(3)Sb(7-x)Te(x) (where x = 1.5 or 1.6) have been investigated as candidate thermoelectric materials. These compounds are members of a class of semiconductors that includes previously known thermoelectric materials. All of these compounds have complex crystalline and electronic structures. Through selection of chemical compositions and processing conditions, it may be possible to alter the structures to enhance or optimize thermoelectric properties.

  9. Occupational Survey Report, Survival Equipment, AFSC 2A7X4.

    DTIC Science & Technology

    1999-04-01

    This report presents the results of an Air Force Occupational Survey of the Survival Equipment career ladder, Air Force Specialty Code (AFSC) 2A7X4...Authority for conducting occupational surveys is contained in AFI 36-2623. Computer products used in this report are available for use by operations...Barnes, Chief, Airman Analysis Section, Occupational Analysis Flight, Air Force Occupational Measurement Squadron (AFOMS).

  10. Ionic liquid gating of ultra-thin YBa2Cu3O7-x films

    NASA Astrophysics Data System (ADS)

    Fête, A.; Rossi, L.; Augieri, A.; Senatore, C.

    2016-11-01

    In this paper, we present a detailed investigation of the self-field transport properties of an ionic liquid gated ultra-thin YBa2Cu3O7-x (YBCO) film. From the high temperature dynamic of the resistivity (>220 K), different scenarios pertaining to the interaction between the liquid and the thin film are proposed. From the low temperature evolution of Jc and Tc, a comparison between the behavior of our system and the standard properties of YBCO is drawn.

  11. Qualification of high heat flux components: application to target elements of W7-X divertor

    NASA Astrophysics Data System (ADS)

    Missirlian, M.; Durocher, A.; Grosman, A.; Schlosser, J.; Boscary, J.; Escourbiac, F.; Cismondi, F.

    2007-03-01

    The development of actively cooled plasma-facing components (PFC) represents one of fusion's most challenging engineering efforts. In this frame, a high-quality bonding between the refractory armour and the heat sink is essential to ensure the heat removal capability and the thermal performances of PFC. Experience gained during manufacturing of Tore Supra actively cooled PFC led to the establishment of a qualification methodology and provided a large experience of acceptance criteria using an active infrared thermography (système d'acquisition de traitement infra-rouge, SATIR). This paper presents the application of this qualification process to the W7-X pre-series components, with the objective of assessing and defining workable acceptance criteria that enable reliable predictions of performance at the nominal heat flux requirements in W7-X. Finally, to check the reliability of the non-destructive examination (NDE) method by transient infrared thermography, the newly defined acceptance criteria were applied to W7-X pre-series target elements (batch #3). The SATIR results, benchmarked with HHF tests performed on the GLADIS ion beam facility were discussed to assess the ability to detect critical defects at the interface between tiles and heat sink.

  12. Detecting divertor damage during steady state operation of Wendelstein 7-X from thermographic measurements.

    PubMed

    Rodatos, A; Greuner, H; Jakubowski, M W; Boscary, J; Wurden, G A; Pedersen, T S; König, R

    2016-02-01

    Wendelstein 7-X (W7-X) aims to demonstrate the reactor capability of the stellarator concept, by creating plasmas with pulse lengths of up to 30 min at a heating power of up to 10 MW. The divertor plasma facing components will see convective steady state heat flux densities of up to 10 MW/m(2). These high heat flux target elements are actively cooled and are covered with carbon fibre reinforced carbon (CFC) as plasma facing material. The CFC is bonded to the CuCrZr cooling structure. Over the life time of the experiment this interface may weaken and cracks can occur, greatly reducing the heat conduction between the CFC tile and the cooling structure. Therefore, there is not only the need to monitor the divertor to prevent damage by overheating but also the need to detect these fatigue failures of the interface. A method is presented for an early detection of fatigue failures of the interface layer, solely by using the information delivered by the IR-cameras monitoring the divertor. This was developed and validated through experiments made with high heat flux target elements prior to installation in W7-X.

  13. Detecting divertor damage during steady state operation of Wendelstein 7-X from thermographic measurements

    NASA Astrophysics Data System (ADS)

    Rodatos, A.; Greuner, H.; Jakubowski, M. W.; Boscary, J.; Wurden, G. A.; Pedersen, T. S.; König, R.

    2016-02-01

    Wendelstein 7-X (W7-X) aims to demonstrate the reactor capability of the stellarator concept, by creating plasmas with pulse lengths of up to 30 min at a heating power of up to 10 MW. The divertor plasma facing components will see convective steady state heat flux densities of up to 10 MW/m2. These high heat flux target elements are actively cooled and are covered with carbon fibre reinforced carbon (CFC) as plasma facing material. The CFC is bonded to the CuCrZr cooling structure. Over the life time of the experiment this interface may weaken and cracks can occur, greatly reducing the heat conduction between the CFC tile and the cooling structure. Therefore, there is not only the need to monitor the divertor to prevent damage by overheating but also the need to detect these fatigue failures of the interface. A method is presented for an early detection of fatigue failures of the interface layer, solely by using the information delivered by the IR-cameras monitoring the divertor. This was developed and validated through experiments made with high heat flux target elements prior to installation in W7-X.

  14. Experimental characterization of plasma start-up using ECRH in preparation of W7-X operation

    NASA Astrophysics Data System (ADS)

    Preynas, M.; Aßmus, D.; Igami, H.; Kado, S.; Kobayashi, S.; Kubo, S.; Laqua, H. P.; Mutoh, T.; Nagasaki, K.; Otte, M.; Shimozuma, T.; Stange, T.; Yoshimura, Y.

    2015-03-01

    The upcoming operation of Wendelstein 7-X (W7-X) will be supported by an Electron Cyclotron Resonance Heating (ECRH) system working at 140 GHz in second harmonic at the nominal magnetic field of 2.5T. Because the optimization of the plasma breakdown is crucial to ensure a successful plasma build-up, dedicated plasma start-up experiments were performed on three stellarator/heliotron devices: Heliotron J, LHD and WEGA. Start-up behavior and dependencies on ECRH injected power, neutral gas pressure and rotational transform were obtained in X2 heating. Plasma start-up delay time decreases with the increase in ECRH input power. However, this behavior saturates when low pre-fill neutral gas pressure conditions are met. Both the delay time and the electron density are an increasing function of the gas pressure. On Heliotron J and WEGA devices, the higher the rotational transform is, the faster the start-up and the higher the plasma density are. Analysis of the temporal evolution of the plasma start-up shows that plasma start-up on stellarators is a two-step process. In addition, off-axis heating experiments are characterized by a longer plasma start-up duration compared to on-axis heating discharges. Third harmonic in X-mode has been attempted on LHD for different neutral gas puffing settings but no plasma breakdown was achieved. This multi-machine study was useful to define ECRH start-up scenarios for W7-X.

  15. Design of a phase contrast imaging diagnostic for the Wendelstein 7-X stellarator

    NASA Astrophysics Data System (ADS)

    Edlund, E. M.; Porkolab, M.; Grulke, O.; Böttger, L.-G.; Sehren, C.

    2016-10-01

    The Wendelstein 7-X stellarator at IPP Greifswald commenced operation in 2015, and while its design has been aimed at minimizing neoclassical transport, turbulent transport is expected to be strongly affected by the magnetic geometry. With this in mind, MIT and IPP-Greifswald scientists have undertaken a project to design and implement a phase contrast imaging (PCI) diagnostic to measure turbulence in W7-X in the OP1.2 operating phase starting in 2017. The principle and design aspects of the PCI method have been described in numerous past publications. In W7-X the PCI system will have two imaging systems differing only in the angle of the spatial mask that selects for magnetic pitch angle, and will produce measurements of poloidal and radial correlations. A series of remotely controllable optics will allow the beam size and image magnification to be adjustable. We expect sensitivity to fluctuations in the range of 2 kHz to approximately 2 MHz and wavenumbers in the range of 1 cm-1 to 30 cm-1 which should allow us to detect ITG, TEM and possibly ETG turbulence. The MIT portion of this project is supported by the US DOE under Grant DE-SC0014229, and the IPP part is funded under Euratom Grant agreement No 633053.

  16. First measurements of error fields on W7-X using flux surface mapping

    DOE PAGES

    Lazerson, Samuel A.; Otte, Matthias; Bozhenkov, Sergey; ...

    2016-08-03

    Error fields have been detected and quantified using the flux surface mapping diagnostic system on Wendelstein 7-X (W7-X). A low-field 'more » $${\\rlap{-}\\ \\iota} =1/2$$ ' magnetic configuration ($${\\rlap{-}\\ \\iota} =\\iota /2\\pi $$ ), sensitive to error fields, was developed in order to detect their presence using the flux surface mapping diagnostic. In this configuration, a vacuum flux surface with rotational transform of n/m = 1/2 is created at the mid-radius of the vacuum flux surfaces. If no error fields are present a vanishingly small n/m = 5/10 island chain should be present. Modeling indicates that if an n = 1 perturbing field is applied by the trim coils, a large n/m = 1/2 island chain will be opened. This island chain is used to create a perturbation large enough to be imaged by the diagnostic. Phase and amplitude scans of the applied field allow the measurement of a small $$\\sim 0.04$$ m intrinsic island chain with a $${{130}^{\\circ}}$$ phase relative to the first module of the W7-X experiment. Lastly, these error fields are determined to be small and easily correctable by the trim coil system.« less

  17. ECRH and ECCD at W7-AS, prospects for W7-X

    SciTech Connect

    Erckmann, V.; Laqua, H. P.; Maassberg, H.; Dammertz, G.; Thumm, M.; Kasparek, W.

    1999-09-20

    ECRH is the main heating method for both the W7-AS stellarator, which is operational, and W7-X, which is under construction. An overview on physics studies on Electron Cyclotron Resonance Heating (ECRH) and ECCurrent Drive (ECCD) in an extended parameter range at W7-AS is presented. Experiments were performed with an upgraded ECRH power of up to 1.3 MW at 140 GHz. Electron temperatures of up to 5.7 keV were measured, which can only be explained by the beneficial effect of positive radial electric fields ('electron root'). ECCD experiments at high power density are discussed, where the assumptions of quasi-linear theory are violated. The results from W7-AS establish the experimental and technological basis for W7-X, which aimes at demonstrating the inherent steady state capabality of stellarators at reactor relevant plasma parameters. The status of the design and construction of the ECRH system for W7-X is presented.

  18. 7X performance results - final report : ASCI Red vs Red Storm.

    SciTech Connect

    Dinge, Dennis C.; Davis, Michael E.; Haskell, Karen H.; Ballance, Robert A.; Gardiner, Thomas Anthony; Stevenson, Joel O.; Noe, John P.

    2011-04-01

    The goal of the 7X performance testing was to assure Sandia National Laboratories, Cray Inc., and the Department of Energy that Red Storm would achieve its performance requirements which were defined as a comparison between ASCI Red and Red Storm. Our approach was to identify one or more problems for each application in the 7X suite, run those problems at multiple processor sizes in the capability computing range, and compare the results between ASCI Red and Red Storm. The first part of this report describes the two computer systems, the applications in the 7X suite, the test problems, and the results of the performance tests on ASCI Red and Red Storm. During the course of the testing on Red Storm, we had the opportunity to run the test problems in both single-core mode and dual-core mode and the second part of this report describes those results. Finally, we reflect on lessons learned in undertaking a major head-to-head benchmark comparison.

  19. First measurements of error fields on W7-X using flux surface mapping

    SciTech Connect

    Lazerson, Samuel A.; Otte, Matthias; Bozhenkov, Sergey; Biedermann, Christoph; Pedersen, Thomas Sunn

    2016-08-03

    Error fields have been detected and quantified using the flux surface mapping diagnostic system on Wendelstein 7-X (W7-X). A low-field '${\\rlap{-}\\ \\iota} =1/2$ ' magnetic configuration (${\\rlap{-}\\ \\iota} =\\iota /2\\pi $ ), sensitive to error fields, was developed in order to detect their presence using the flux surface mapping diagnostic. In this configuration, a vacuum flux surface with rotational transform of n/m = 1/2 is created at the mid-radius of the vacuum flux surfaces. If no error fields are present a vanishingly small n/m = 5/10 island chain should be present. Modeling indicates that if an n = 1 perturbing field is applied by the trim coils, a large n/m = 1/2 island chain will be opened. This island chain is used to create a perturbation large enough to be imaged by the diagnostic. Phase and amplitude scans of the applied field allow the measurement of a small $\\sim 0.04$ m intrinsic island chain with a ${{130}^{\\circ}}$ phase relative to the first module of the W7-X experiment. Lastly, these error fields are determined to be small and easily correctable by the trim coil system.

  20. Characterization of error fields and their impacts on Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Lazerson, Samuel; Otte, Matthias; Jakubowski, Marcin; Wurden, Glen; Wenzel, Uwe; Andreeva, Tamara; Bozhenkov, Sergey; Biedermann, Christoph; Kocsis, Gábor; Szepesi, Tamás; Geiger, Joachim; Sunn Pedersen, Thomas; Gates, David; W7-X Team

    2016-10-01

    The measurement and correction of magnetic fields which destroy flux surfaces (error fields) is critical to long pulse high beta operation in Wendelstein 7-X (W7-X). Even small error fields are predicted to cause overloading of divertor plates, as well as the loss of confinement. In the early commissioning phase of the experiment, the trim coils were used to open an n/m=1/2 island chain in a specially designed magnetic configuration. The flux surfacing mapping diagnostic was then able to directly image the magnetic topology of the experiment, allowing the inference of a small 4 cm intrinsic island chain. Scaled to the planned operating field (2.5 T), such error fields would be correctable using less than 10% the rated trim coil capacity. Numerical modeling confirms that a slight misalignment of the superconducting stellarator coil set is the source of this error field. Observations of the limiters temperatures in module 5 show a clear dependence of the limiter heat flux pattern as the perturbing n=1 fields are rotated. Thus the sources of error fields in W7-X are quantified and demonstrated to be correctable by the trim coil system.

  1. 75 FR 79984 - Airworthiness Directives; Bombardier, Inc. Model BD-100-1A10 (Challenger 300) Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

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    2010-11-17

    ... continuous electrical power to operate the control system. The current 14 CFR part 25.1351(d), ``Operation without normal electrical power,'' requires safe operation in VFR conditions for at least five minutes... Airplane, Operation Without Normal Electrical Power AGENCY: Federal Aviation Administration (FAA),...

  12. 75 FR 49377 - Airworthiness Directives; BAE Systems (Operations) Limited Model Avro 146-RJ and BAe 146 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-13

    ...-012-AD; Amendment 39-16387; AD 2010-16-10] RIN 2120-AA64 Airworthiness Directives; BAE Systems (Operations) Limited Model Avro 146-RJ and BAe 146 Airplanes AGENCY: Federal Aviation Administration (FAA... has been identified regarding the interchanging of wing links on all BAe 146 & AVRO 146-RJ...

  13. 76 FR 31459 - Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 and Avro 146-RJ Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ...-208-AD; Amendment 39-16705; AD 2011-11-06] RIN 2120-AA64 Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 and Avro 146-RJ Airplanes AGENCY: Federal Aviation Administration (FAA..., prompted by a crack found at the top of the Nose Landing Gear (NLG) oleo, BAE Systems Operations) Ltd...

  14. 75 FR 53855 - Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-02

    ...-226-AD; Amendment 39-16423; AD 2010-18-10] RIN 2120-AA64 Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes AGENCY: Federal Aviation Administration (FAA... Applicability that have been modified to freighter configuration in accordance with BAE Systems modification...

  15. 75 FR 12158 - Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model Avro 146-RJ and BAe 146 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-15

    ... Federal Aviation Administration 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; BAE SYSTEMS (Operations) Limited Model Avro 146-RJ and BAe 146 Airplanes AGENCY: Federal Aviation Administration (FAA... fleet wide problem has been identified regarding the interchanging of wing links on all BAe 146 &...

  16. 75 FR 52292 - Airworthiness Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... Directives; Diamond Aircraft Industries GmbH Models DA 40 and DA 40F Airplanes AGENCY: Federal Aviation...: We propose to adopt a new airworthiness directive (AD) for all Diamond Aircraft Industries GmbH... Federal holidays. For service information identified in this proposed AD, contact Diamond...

  17. 76 FR 57627 - Special Conditions: Cessna Aircraft Company Model M680 Airplane; Rechargeable Lithium-Ion Battery...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-16

    ... Airplane; Rechargeable Lithium-Ion Battery Installations AGENCY: Federal Aviation Administration (FAA), DOT... lithium-ion batteries. The applicable airworthiness regulations do not contain adequate or appropriate... lithium-ion batteries in the Model 680. Type Certification Basis Under the provisions of Title 14, Code...

  18. 78 FR 62495 - Special Conditions: Learjet Model 35, 35A, 36, and 36A Airplanes; Rechargeable Lithium-Ion...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-22

    ... Airplanes; Rechargeable Lithium-Ion Batteries and Battery Systems AGENCY: Federal Aviation Administration... associated with rechargeable lithium-ion batteries and battery systems. These batteries have certain failure... certificate for installing equipment that uses rechargeable lithium-ion battery systems in Learjet Model...

  19. 76 FR 57625 - Special Conditions: Boeing Model 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-16

    ... Series Airplanes; Rechargeable Lithium-Ion Battery Installations AGENCY: Federal Aviation Administration... rechargeable lithium-ion batteries. The applicable airworthiness regulations do not contain adequate or... Specialists, Inc., proposes to use rechargeable lithium-ion batteries in a dual Class 3 EFB system on...

  20. 78 FR 52107 - Special Conditions: Boeing Model 777-200, -300, and -300ER Series Airplanes; Rechargeable Lithium...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-22

    ... Series Airplanes; Rechargeable Lithium Ion Batteries and Battery Systems AGENCY: Federal Aviation... lithium ion batteries and battery system that will be used on an International Communications Group (ICG... applied for a supplemental type certificate for installing equipment that uses rechargeable lithium...

  1. 75 FR 70092 - Special Conditions: Bombardier Inc. Model CL-600-2E25 Airplane, Interaction of Systems and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-17

    ... Panels, No. 25-384-SC, dated August 12, 2009. 4. Exemptions: Exemption No. 7447, hydraulic-systems... flight. Certain elements of the control system, such as mechanical and hydraulic components, may use... Airplane, Interaction of Systems and Structures AGENCY: Federal Aviation Administration (FAA), DOT....

  2. 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

    ... Airplane; Electronic Flight Control System: Control Surface Awareness and Mode Annunciation AGENCY: Federal... control system. The applicable airworthiness regulations do not contain adequate or appropriate safety... a fly-by-wire electronic flight control system and no direct coupling from the flightdeck...

  3. 77 FR 64025 - Special Conditions: Airbus Model A318, A319, A320, and A321 Series Airplanes; Interaction of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-18

    ..., and A321 Series Airplanes; Interaction of Systems and Structures AGENCY: Federal Aviation... interactions of systems and structures. Airbus requested, and FAA agrees, that these special conditions be... in the assessment of the effects of these systems on structures. Applicability As discussed...

  4. 75 FR 12464 - Airworthiness Directives; McDonnell Douglas Corporation Model MD-11 and MD-11F Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-16

    ... Directives; McDonnell Douglas Corporation Model MD- 11 and MD-11F Airplanes AGENCY: Federal Aviation... Management, 3855 Lakewood Boulevard, MC D800-0019, Long Beach, California 90846- 0001; telephone 206-544-5000.... The FAA amends Sec. 39.13 by adding the following new AD: McDonnell Douglas Corporation: Docket...

  5. 76 FR 18029 - Airworthiness Directives; Fokker Services B.V. Model F.28 Mark 1000, 2000, 3000, and 4000 Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    .... Model F.28 Mark 1000, 2000, 3000, and 4000 Airplanes AGENCY: Federal Aviation Administration (FAA.... Affected ADs (b) None. Applicability (c) This AD applies to Fokker Services B.V. Model F.28 Mark 1000, 2000... aeroplane. * * * * * Compliance (f) You are responsible for having the actions required by this AD...

  6. 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

    .... Model F.28 Mark 0070 and 0100 Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION...) None. Applicability (c) This AD applies to all Fokker Services B.V. Model F.28 Mark 0070 and 0100.... * * * * * Compliance (f) You are responsible for having the actions required by this AD performed within the...

  7. 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

    .... 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 0100...), as previously required by EASA AD 2008-0193. Compliance (f) You are responsible for having...

  8. 78 FR 31836 - Special Conditions: Embraer S.A., Model EMB-550 Airplane, Dive Speed Definition With Speed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-28

    ..., Dive Speed Definition With Speed Protection System AGENCY: Federal Aviation Administration (FAA), DOT... design features include a high-speed protection system. The applicable airworthiness regulations do not... pilot or copilot sidestick. The Model EMB-550 airplane incorporates a high-speed protection system...

  9. 77 FR 57481 - Special Conditions: Embraer S.A., Models EMB-135 and EMB-145 Series; Airplane Seats with Non...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-18

    ... protection intended by the airworthiness standards, these non- traditional, large, non-metallic panels in the... with Non-Traditional, Large, Non-Metallic Panels AGENCY: Federal Aviation Administration (FAA), DOT... unusual design feature associated with the airplane seats that have non-traditional, large,...

  10. B7x in the periphery abrogates pancreas specific damage mediated by self-reactive CD8 T cells

    PubMed Central

    Lee, Jun Sik; Scandiuzzi, Lisa; Ray, Anjana; Wei, Joyce; Hofmeyer, Kimberly A.; Abadi, Yael M.; Loke, P’ng; Lin, Juan; Yuan, Jianda; Serreze, David V.; Allison, James P.; Zang, Xingxing

    2012-01-01

    B7x (B7-H4 or B7S1) is the seventh member of the B7 family and the in vivo function remains largely unknown. Despite new genetic data linking the B7x gene with autoimmune diseases, how exactly it contributes to peripheral tolerance and autoimmunity is unclear. Here we showed that B7x protein was not detected on antigen-presenting cells or T cells in both human and mice, which is unique in the B7 family. As B7x protein is expressed in some peripheral cells such as pancreatic β cells, we utilized a CD8 T cell-mediated diabetes model (AI4αβ) in which CD8 T cells recognize an endogenous self-antigen, and found that mice lacking B7x developed more severe diabetes than control AI4αβ mice. Conversely, mice overexpressing B7x in the β cells (Rip-B7xAI4αβ) were diabetes free. Furthermore, adoptive transfer of effector AI4αβ CD8 T cells induced diabetes in control mice, but not in Rip-B7xAI4αβ mice. Mechanistic studies revealed that pathogenic effector CD8 T cells were capable of migrating to the pancreas but failed to robustly destroy tissue when encountering local B7x in Rip-B7xAI4αβ mice. Although AI4αβ CD8 T cells in Rip-B7xAI4αβ mice and AI4αβ mice showed similar cytotoxic function, cell death, and global gene expression profiles, these cells had greater proliferation in AI4αβ mice than in RIP-B7xAI4αβ mice. These results suggest that B7x in nonlymphoid organs prevents peripheral autoimmunity partially through inhibiting proliferation of tissue-specific CD8 T cells and that local overexpression of B7x on pancreatic β cells is sufficient to abolish CD8 T cell-induced diabetes. PMID:22972920

  11. 78 FR 15112 - Rulemaking Advisory Committee; Transport Airplane Performance and Handling Characteristics-New Task

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-08

    ... guidance material for airplane performance and handling characteristics in new transport category airplanes... associated guidance material for airworthiness certification of airplane designs. Recommendations may result... Federal Aviation Administration Aviation Rulemaking Advisory Committee; Transport Airplane Performance...

  12. 14 CFR 121.414 - Initial and transition training and checking requirements: flight instructors (airplane), flight...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ....414 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED... training for flight instructors (airplane), flight engineer instructors (airplane), and flight navigator... instruction. (4) For flight engineer instructors (airplane) and flight navigator instructors (airplane),...

  13. Shuttle Laser Technology Experiment Facility (LTEF)-to-airplane lasercom experiment: Airplane considerations

    NASA Technical Reports Server (NTRS)

    Kalil, Ford

    1990-01-01

    NASA is considering the use of various airplanes for a Shuttle Laser Technology Experiment Facility (LTEF)-to-Airplane laser communications experiment. As supporting documentation, pertinent technical details are included about the potential use of airplanes located at Ames Research Center and Wallops Flight Facility. The effects and application of orbital mechanics considerations are also presented, including slant range, azimuth, elevation, and time. The pros and cons of an airplane equipped with a side port with a bubble window versus a top port with a dome are discussed.

  14. 78 FR 64894 - Airworthiness Directives; B-N Group Ltd. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-30

    ... Directives; B-N Group Ltd. Airplanes AGENCY: Federal Aviation Administration (FAA), Department of... airworthiness directive (AD) for B-N Group Ltd. Models BN-2, BN-2A, BN-2A-2, BN-2A-3, BN-2A-6, BN-2A-8, BN- 2A-9...), 40113, 44701. Sec. 39.13 0 2. The FAA amends Sec. 39.13 by adding the following new AD: B-N Group...

  15. 78 FR 53237 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-29

    ... AD 2013-05-08 incorrectly specify flight control secondary computers (FCSCs), rather than flight control primary computers (FCPCs). This document corrects those errors. In all other respects, the... airplane configuration, modifying three flight control primary computers (FCPCs); modifying two...

  16. New Albatross commercial airplane "L 58"

    NASA Technical Reports Server (NTRS)

    Meyer, G

    1923-01-01

    The "L 58" is a monoplane with cantilever wings joined directly to the fuselage. It accordingly belongs to the new school of airplane construction, as founded and developed in Germany. A list of performance characteristics is included.

  17. Structural integrity of future aging airplanes

    NASA Technical Reports Server (NTRS)

    Mcguire, Jack F.; Goranson, Ulf G.

    1992-01-01

    A multitude of design considerations is involved in ensuring the structural integrity of Boeing jet transports that have common design concepts validated by extensive analyses, tests, and three decades of service. As airplanes approach their design service objectives, the incidences of fatigue and corrosion may become widespread. Continuing airworthiness of the aging jet fleet requires diligent performance from the manufacturer, the airlines, and airworthiness authorities. Aging fleet support includes timely development of supplemental structural inspection documents applicable to selected older airplanes, teardown inspections of high-time airframes retired from service, fatigue testing of older airframes, and structural surveys of more than 130 airplanes operated throughout the world. Lessons learned from these activities are incorporated in service bulletin recommendations, production line modifications, and design manual updates. An overview of traditional Boeing fleet support activities and the anticipated benefits for future generations of commercial airplanes based on the continuous design improvement process are presented.

  18. Precision controllability of the F-15 airplane

    NASA Technical Reports Server (NTRS)

    Sisk, T. R.; Matheny, N. W.

    1979-01-01

    A flying qualities evaluation conducted on a preproduction F-15 airplane permitted an assessment to be made of its precision controllability in the high subsonic and low transonic flight regime over the allowable angle of attack range. Precision controllability, or gunsight tracking, studies were conducted in windup turn maneuvers with the gunsight in the caged pipper mode and depressed 70 mils. This evaluation showed the F-15 airplane to experience severe buffet and mild-to-moderate wing rock at the higher angles of attack. It showed the F-15 airplane radial tracking precision to vary from approximately 6 to 20 mils over the load factor range tested. Tracking in the presence of wing rock essentially doubled the radial tracking error generated at the lower angles of attack. The stability augmentation system affected the tracking precision of the F-15 airplane more than it did that of previous aircraft studied.

  19. 78 FR 46306 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ... system reviews conducted by the airplane manufacturer. This proposed AD would require removing bulb type... AD requires removal of bulb type maintenance lights for all aeroplanes, installation of the...

  20. Notes on New French Commercial Airplanes

    NASA Technical Reports Server (NTRS)

    1935-01-01

    This document discusses the types of commercial planes ordered by Air France. Characteristics of the Wibault 670, the Dewoitine D.620, Bloch 300, and the Potez 620 airplanes are included. Pictures and diagrams of these aircraft are also included.

  1. 78 FR 22432 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-16

    ... provide appropriate operational procedures to prevent the airplane flight directors (FDs), autopilot (AP... computers (FCPCs) are necessary to inhibit autopilot re-engagement under unreliable airspeed conditions... this AD to prevent autopilot engagement under unreliable airspeed conditions, which could result...

  2. The Kiln Drying of Wood for Airplanes

    NASA Technical Reports Server (NTRS)

    Tiemann, Harry D

    1919-01-01

    This report is descriptive of various methods used in the kiln drying of woods for airplanes and gives the results of physical tests on different types of woods after being dried by the various kiln-drying methods.

  3. Development of light and small airplanes

    NASA Technical Reports Server (NTRS)

    Lachmann, G

    1926-01-01

    The author has endeavored to select only the most important lines of development and has limited the description of individual airplanes to a few typical examples. Comparisons are presented between German and foreign accomplishments.

  4. Control of airplanes at low speeds

    NASA Technical Reports Server (NTRS)

    Wood, R Mckinnon

    1923-01-01

    Loss of control over the orientation of an airplane as the incidence approaches and enters the region of stalled flight is a prolific cause of serious accidents. This report discusses methods of landing at slow speeds approaching stall.

  5. Fire prevention on airplanes. Part I

    NASA Technical Reports Server (NTRS)

    Sabatier, J

    1929-01-01

    Various methods for preventing fires in airplanes are presented with most efforts centering around prevention of backfires, new engine and carburetor designs, as well as investigations on different types of fuels.

  6. A study of commuter airplane design optimization

    NASA Technical Reports Server (NTRS)

    Roskam, J.; Wyatt, R. D.; Griswold, D. A.; Hammer, J. L.

    1977-01-01

    Problems of commuter airplane configuration design were studied to affect a minimization of direct operating costs. Factors considered were the minimization of fuselage drag, methods of wing design, and the estimated drag of an airplane submerged in a propellor slipstream; all design criteria were studied under a set of fixed performance, mission, and stability constraints. Configuration design data were assembled for application by a computerized design methodology program similar to the NASA-Ames General Aviation Synthesis Program.

  7. 77 FR 10691 - Airworthiness Directives; Airbus Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... Operators Telex A330-52A3084, dated December 20, 2010 (for Model A330-200 and A330-300 series airplanes); All Operators Telex A330-52A3085, dated December 20, 2010 (for Model A330-200 and A330-300 series airplanes); All Operators Telex A340-52A4091, dated December 20, 2010 (for Model A340-200 and...

  8. Startup impurity diagnostics in Wendelstein 7-X stellarator in the first operational phase

    NASA Astrophysics Data System (ADS)

    Thomsen, H.; Langenberg, A.; Zhang, D.; Bertschinger, G.; Biedermann, C.; Biel, W.; Burhenn, R.; Buttenschön, B.; Grosser, K.; König, R.; Kubkowska, M.; Marchuk, O.; Pablant, N.; Ryc, L.; Pedersen, T. S.; W7-X Team

    2015-10-01

    An essential element for stationary stellarator operation is the understanding of the impurity transport behavior. Neoclassical theory predicts an impurity transport towards the plasma core for the standard ion root regime in stellarators [1,2]. The performance of a quasi-stationary device like Wendelstein 7-X stellarator (W7-X, presently in the commissioning phase in Greifswald, Germany) could be limited in case of strong impurity accumulation. Therefore, a set of plasma diagnostics is foreseen to obtain key experimental quantities for the neoclassical transport modeling as ion temperature profile, density gradients and impurity concentration [1]. The core impurity content is monitored by the High Efficiency eXtreme ultraviolet Overview Spectrometer system (HEXOS) [2], covering the wavelength range 2.5-160 nm (intermediate ionization states of all relevant heavy intrinsic impurity species) with high spectral resolution and a time resolution of 1 ms, adequate for transport analysis. Impurity radiation at shorter wave lengths (4 nm-0.06 nm) will be monitored with the SX pulse height analysis system (PHA) [3]. The ion temperature profile can be deduced from inversion of data from the High Resolution X-ray Imaging Spectrometer (HR-XIS), which measures the concentration and temperature of argon tracer gas in helium-like ionization stages [6,7,8]. A second X-ray Imaging Crystal Spectrometer (XICS), which will additionally provide the poloidal ion rotation velocity, is under preparation [8,9]. The total radiation will be measured by two bolometer cameras [10,11]. The status of the impurity diagnostics for the first operational phase in W7-X is summarized in this paper and an outlook for the next experimental campaign is given.

  9. Laboratory tests of the Pulse Height Analysis system for Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Kubkowska, M.; Czarnecka, A.; Figacz, W.; Jabłoński, S.; Kaczmarczyk, J.; Krawczyk, N.; Ryć, L.; Biedermann, C.; Koenig, R.; Thomsen, H.; Weller, A.; W7-X Team

    2015-10-01

    A pulse height analysis (PHA) system has been designed and manufactured for the Wendelstein 7-X stellarator, in such a way as to be already compatible with later quasi-continuous operation requirements. The diagnostic will provide X-ray spectra with energy resolution better than 180 eV . The system has three energy channels: 0.25-20 keV, 0.95-20 keV and 1.5-20 keV . For each channel a separate Silicon Drift Detector (SDD) equipped with a suitably selected beryllium foil is used. The range of the 3 energy channels can be further adapted to particular experiments by moving via a pneumatic actuator additional beryllium filters in front of the fixed ones. The PHA system is intended for measuring impurity species (e.g. C, Fe, Ni), electron temperature and for investigating possible suprathermal tails in the spectra. The system will be installed on the horizontal port AEK50 on W7-X. The SDD detectors, the replaceable filters and the adjustable piezo driven slits which allow to suitably adapt the X-ray signal intensity are mounted inside a vacuum chamber which is connected to the plasma vessel via a gate valve. The on-air diagnostic components are the preamplifiers, the Digital X-Ray Processor (XIA, U.S.A.), a computer, and an X-ray calibration source. For controlling the operation of the entire diagnostic system, as well as, for the data acquisition of the electrical pulses coming a special code was developed. The paper presents the construction of the PHA system for W7-X and the laboratory tests of its mechanical parts together with the information on the code developed to operate the diagnostic. The diagnostic was also tested and characterised by measuring Fe55 spectrum and fluorescence spectra of Ni, Fe, Cr and Cu induced by an X-ray mini-tube.

  10. Cryogenic experiences during W7-X HTS-current lead tests

    SciTech Connect

    Richter, Thomas; Lietzow, Ralph

    2014-01-29

    The Karlsruhe Institute of Technology (KIT) was responsible for design, production and test of the High Temperature Superconductor (HTS) current leads (CL) for the stellerator Wendelstein 7-X (W7-X). 16 current leads were delivered. Detailed prototype tests as well as the final acceptance tests were performed at KIT, using a dedicated test cryostat assembled beside and connected to the main vacuum vessel of the TOSKA facility. A unique feature is the upside down orientation of the current leads due to the location of the power supplies in the basement of the experimental area of W7-X. The HTS-CL consists of three main parts: the cold end for the connection to the bus bar at 4.5 K, the HTS part operating in the temperature range from 4.5 K to 65 K and a copper heat exchanger (HEX) in the temperature range from 65 K to room temperature, which is cooled with 50 K helium. Therefore in TOSKA it is possible to cool test specimens simultaneously with helium at two different temperature levels. The current lead tests included different scenarios with currents up to 18.2 kA. In total, 10 cryogenic test campaigns with a total time of about 24 weeks were performed till beginning of 2013. The test facility as well as the 2 kW cryogenic plant of ITEP showed a very good reliability. However, during such a long and complex experimental campaign, one has to deal with failures, technical difficulties and incidents. The paper gives a summary of the test performance comprising the test preparation and operation. This includes the performance and reliability of the refrigerator and the test facility with reference to the process measuring and control system, the data acquisition system, as well as the building infrastructure.

  11. Sliding weight supports for W7-X magnet system: structural aspects

    NASA Astrophysics Data System (ADS)

    Bykov, V.; Fellinger, J.; Egorov, K.; Schauer, F.; Köppen, M.; Jenzsch, H.

    2015-05-01

    The Wendelstein 7-X (W7-X) stellarator is presently under commissioning at the Max-Planck-Institut für Plasmaphysik in Greifswald. The coil system consisting of 70 superconducting coils of seven different types is supported by a massive central support structure (CSS), and thermally protected by the cryostat. The magnet system weight is borne by supports which are bolted to the cold CSS. These ten so-called cryo-legs penetrate through the cryostat wall to the warm machine base. The design of the cryo-legs incorporates glass-reinforced plastic tubes to guarantee relatively small thermal conductivity. In order to ensure free thermal shrinkage of the magnet system and to reduce stresses in the cryo-legs, sliding and rotating bearings are used as interfaces to the machine base. Tie-rods between the machine base and the warm ends of the cryo-legs prevent toroidal rotation of the magnet system, as well as any other horizontal shifts due to asymmetric loads. The assembly of the magnet system introduced some vertical imperfections in the cryo-leg positions causing considerable additional internal stresses which were not considered during the design stage. In addition, originally not planned trim coils induce unsymmetrical cyclic loads. Therefore, the previously used method to analyse one magnet system module with periodical boundary conditions is not applicable. Consequently, a model of the complete magnet system, including all five modules, was created and analysed. Fatigue analyses of the cryo-legs under the new cyclic loads, applied on top of the approximately 100 t static weight, have been performed in order to evaluate the lifetime. The paper presents the progress in structural analyses of the W7-X magnet system under the as-built conditions, loads due to the trim coil operation, and results of the weight support fatigue analysis.

  12. Cryogenic experiences during W7-X HTS-current lead tests

    NASA Astrophysics Data System (ADS)

    Richter, Thomas; Lietzow, Ralph

    2014-01-01

    The Karlsruhe Institute of Technology (KIT) was responsible for design, production and test of the High Temperature Superconductor (HTS) current leads (CL) for the stellerator Wendelstein 7-X (W7-X). 16 current leads were delivered. Detailed prototype tests as well as the final acceptance tests were performed at KIT, using a dedicated test cryostat assembled beside and connected to the main vacuum vessel of the TOSKA facility. A unique feature is the upside down orientation of the current leads due to the location of the power supplies in the basement of the experimental area of W7-X. The HTS-CL consists of three main parts: the cold end for the connection to the bus bar at 4.5 K, the HTS part operating in the temperature range from 4.5 K to 65 K and a copper heat exchanger (HEX) in the temperature range from 65 K to room temperature, which is cooled with 50 K helium. Therefore in TOSKA it is possible to cool test specimens simultaneously with helium at two different temperature levels. The current lead tests included different scenarios with currents up to 18.2 kA. In total, 10 cryogenic test campaigns with a total time of about 24 weeks were performed till beginning of 2013. The test facility as well as the 2 kW cryogenic plant of ITEP showed a very good reliability. However, during such a long and complex experimental campaign, one has to deal with failures, technical difficulties and incidents. The paper gives a summary of the test performance comprising the test preparation and operation. This includes the performance and reliability of the refrigerator and the test facility with reference to the process measuring and control system, the data acquisition system, as well as the building infrastructure.

  13. First measurements of error fields on W7-X using flux surface mapping

    NASA Astrophysics Data System (ADS)

    Lazerson, Samuel A.; Otte, Matthias; Bozhenkov, Sergey; Biedermann, Christoph; Pedersen, Thomas Sunn; the W7-X Team

    2016-10-01

    Error fields have been detected and quantified using the flux surface mapping diagnostic system on Wendelstein 7-X (W7-X). A low-field ‘{\\rlap- \\iota} =1/2 ’ magnetic configuration ({\\rlap- \\iota} =\\iota /2π ), sensitive to error fields, was developed in order to detect their presence using the flux surface mapping diagnostic. In this configuration, a vacuum flux surface with rotational transform of n/m  =  1/2 is created at the mid-radius of the vacuum flux surfaces. If no error fields are present a vanishingly small n/m  =  5/10 island chain should be present. Modeling indicates that if an n  =  1 perturbing field is applied by the trim coils, a large n/m  =  1/2 island chain will be opened. This island chain is used to create a perturbation large enough to be imaged by the diagnostic. Phase and amplitude scans of the applied field allow the measurement of a small ∼ 0.04 m intrinsic island chain with a {{130}\\circ} phase relative to the first module of the W7-X experiment. These error fields are determined to be small and easily correctable by the trim coil system. Notice: This manuscript has been authored by Princeton University under Contract Number DE-AC02-09CH11466 with the U.S. Department of Energy. The publisher, by accepting the article for publication acknowledges, that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.

  14. Core Radial Electric Field and Transport in Wendelstein 7-X Plasmas

    NASA Astrophysics Data System (ADS)

    Pablant, Novimir

    2016-10-01

    Results from the investigation of core transport and the role of the radial electric field profile (Er) in the first operational phase of the Wendelstein 7-X (W7-X) stellarator are presented. In stellarator plasmas, the details of the Er profile are expected to have a strong effect on both the particle and heat fluxes. Neoclassical particle fluxes are not intrinsically ambipolar, which leads to the formation of a radial electric field that enforces ambipolarity. The radial electric field is closely related to the perpendicular plasma flow (u⊥) through the force balance equation. This allows the radial electric field to be inferred from measurements of the perpendicular flow velocity from the x-ray imaging crystal spectrometer (XICS) and correlation reflectometry diagnostics. Large changes in the perpendicular rotation, on the order of Δu⊥ 5km /s (ΔEr 12kV / m), have been observed within a set of experiments where the heating power was stepped down from 2 MW to 0.6 MW . These experiments are examined in detail to explore the relationship between, heating power, response of the temperature and density profiles and the response of the radial electric field. Estimations of the core transport are based on power balance and utilize electron temperature (Te) profiles from the ECE and Thomson scattering, electron density profiles (ne) from interferometry and Thomson scattering, ion temperature (Ti) profiles from XICS, along with measurements of the total stored energy and radiated power. Also described are a set core impurity confinement experiments and results. Impurity confinement has been investigated through the injection of trace amount of argon impurity gas at the plasma edge in conjunction with measurements of the density of various ionization states of argon from the XICS and High Efficiency eXtreme-UV Overview Spectrometer (HEXOS) diagnostics. Finally the inferred Er and heat flux profiles are compared to initial neoclassical calculations using measured

  15. Stability of bulk Ba2YCu3O(7-x) in a variety of environments

    NASA Technical Reports Server (NTRS)

    Gaier, James R.; Hepp, Aloysius F.; Curtis, Henry B.; Schupp, Donald A.; Hambourger, Paul D.; Blue, James W.

    1988-01-01

    Small bars of ceramic Ba2YCu3O(7-x) were fabricated and subjected to environments similar to those that might be encountered during some NASA missions. These conditions include ambient conditions, high humidity, vacuum, and high fluences of electrons and protrons. The normal state resistivity or critical current density (J sub c) were monitored during these tests to assess the stability of the material. When normal state resistivity is used as a criterion, the ambient stability of these samples was relatively good, exhibiting only a 2 percent degradation over a 3 month period. The humidity stability was shown to be very poor, and to be a steep function of temperature. Samples stored at 50 C for 40 min increased in normal state resistivity by four orders of magnitude. Kinetic analysis indicates that the degradation reaction is second order with water vapor concentration. It is suspected that humidity degradation also accounts for the ambient instability. The samples were stable to vacuum over a period of at least 3 months. Degradation of J sub c in a 1 MeV electron fluence of 9.7 x 10 to the 14th e(-)/sq cm was determined to be no more than about 2 percent. Degradation of J sub c in a 8.7 x 10 to the 14th p(+)/sq cm of 42 MeV protons was found to be grain size dependent. Samples with smaller grain size and initial J sub c of about 240 A/sq cm showed no degradation. while that with larger grain size and an initial J sub c of about 30 A/sq cm degraded to 37 percent of its original value.

  16. Coil tests and superconductor code calculations for the stellarator W7-X coils

    NASA Astrophysics Data System (ADS)

    Baldzuhn, J.; Ehmler, H.; Hoelting, A.; Hertel, K.; Sborchia, C.; Genini, L.; Schild, T.

    2006-07-01

    For the stellarator Wendelstein 7-X, a plasma fusion experiment, the performance of the superconducting coils is tested in a cryogenic test facility. Focus is on the quench behaviour of these coils. Some key data of the coils are given here. The coil quench data, obtained during the tests, are compared to GANDALF code calculations. GANDALF is a one-dimensional finite elements code for the simulation of the quench properties of superconducting CICC cables. Good consistency between measurement and calculation is found for the development of the resistive voltage and temperature increase during the quench.

  17. Silicon adatom switching and manipulation on Si(111)-7 x 7.

    PubMed

    Sagisaka, Keisuke; Luce, Alexander; Fujita, Daisuke

    2010-01-29

    We report on a multiple-state switching behavior in the tip height or tunneling current of scanning tunneling microscopy on the Si(111)-7 x 7 surface. This switching is caused by displacement of silicon adatoms under the influence of energetic tunneling electrons. When the tip is fixed over a center adatom, five well-defined levels appear in the measured tip height and tunneling current. These levels are attributed to different electronic structures, depending on the configuration of the center adatoms in the unit cell. We also demonstrate manipulations of the center adatoms by controlling the sample bias.

  18. Inference of the microwave absorption coefficient from stray radiation measurements in Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Moseev, D.; Laqua, H. P.; Marsen, S.; Marushchenko, N.; Stange, T.; Braune, H.; Gellert, F.; Hirsch, M.; Hoefel, U.; Knauer, J.; Oosterbeek, J. W.; Turkin, Y.; The Wendelstein 7-X Team

    2017-03-01

    The efficiency of electron cyclotron heating is determined by the microwave absorption of the plasma. Good microwave absorption is also crucial for the machine safety. In this paper we present a method of evaluating the microwave absorption coefficient from stray radiation measurements. The discussed method is computationally simple and can be applied potentially in real time. Evolution of the second harmonic extraordinary mode (X2) microwave absorption coefficient in Wendelstein 7-X during the start-up phase is presented, as well as an estimate of the absorption coefficient for the second harmonic ordinary mode (O2) wave.

  19. Effects of radial electric fields on linear ITG instabilities in W7-X and LHD

    NASA Astrophysics Data System (ADS)

    Riemann, J.; Kleiber, R.; Borchardt, M.

    2016-07-01

    The impact of radial electric fields on the properties of linear ion-temperature-gradient (ITG) modes in stellarators is studied. Numerical simulations have been carried out with the global particle-in-cell (PIC) code EUTERPE, modelling the behaviour of ITG modes in Wendelstein 7-X and an LHD-like configuration. In general, radial electric fields seem to lead to a reduction of ITG instability growth, which can be related to the action of an induced E× B -drift. Focus is set on the modification of mode properties (frequencies, power spectrum, spatial structure and localization) to understand the observed growth rates as the result of competing stabilizing mechanisms.

  20. Tissue-specific expression of B7x protects from CD4 T cell–mediated autoimmunity

    PubMed Central

    Wei, Joyce; Loke, P’ng

    2011-01-01

    B7x, an inhibitory member of the B7/CD28 superfamily, is highly expressed in a broad range of nonhematopoietic organs, suggesting a role in maintaining peripheral tolerance. As endogenous B7x protein is expressed in pancreatic islets, we investigated whether the molecule inhibits diabetogenic responses. Transfer of disease-inducing BDC2.5 T cells into B7x-deficient mice resulted in a more aggressive form of diabetes than in wild-type animals. This exacerbation of disease correlated with higher frequencies of islet-infiltrating Th1 and Th17 cells. Conversely, local B7x overexpression inhibited the development of autoimmunity, as crossing diabetes-susceptible BDC2.5/B6g7 mice to animals overexpressing B7x in pancreatic islets abrogated disease induction. This protection was caused by the inhibition of IFN-γ production by CD4 T cells and not to a skewing or expansion of Th2 or regulatory T cells. The suppressive function of B7x was also supported by observations from another autoimmune model, experimental autoimmune encephalomyelitis, in which B7x-deficient mice developed exacerbated disease in comparison with wild-type animals. Analysis of central nervous system–infiltrating immune cells revealed that the loss of endogenous B7x resulted in expanded Th1 and Th17 responses. Data from these two autoimmune models provide evidence that B7x expression in the periphery acts as an immune checkpoint to prevent tissue-specific autoimmunity. PMID:21727190

  1. Factors of airplane engine performance

    NASA Technical Reports Server (NTRS)

    Gage, Victor R

    1921-01-01

    This report is based upon an analysis of a large number of airplane-engine tests. It contains the results of a search for fundamental relations between many variables of engine operation. The data used came from over 100 groups of tests made upon several engines, primarily for military information. The types of engines were the Liberty 12 and three models of the Hispano-Suiza. The tests were made in the altitude chamber, where conditions simulated altitudes up to about 30,000 feet, with engine speeds ranging from 1,200 to 2,200 r.p.m. The compression ratios of the different engines ranged from under 5 to over 8 to 1. The data taken on the tests were exceptionally complete, including variations of pressure and temperature, besides the brake and friction torques, rates of fuel and air consumption, the jacket and exhaust heat losses.

  2. SERUM SOLUBLE B7x IS ELEVATED IN RENAL CELL CARCINOMA PATIENTS AND IS ASSOCIATED WITH ADVANCED STAGE

    PubMed Central

    Thompson, R. Houston; Zang, Xingxing; Lohse, Christine M.; Leibovich, Bradley C.; Slovin, Susan F.; Reuter, Victor E.; Cheville, John C.; Blute, Michael L.; Russo, Paul; Kwon, Eugene D.; Allison, James P.

    2008-01-01

    B7x is the newest member of the B7-CD28 family and is thought to dampen immune responses via negative costimulation. Tumor expression of B7x was recently described in renal cell carcinoma (RCC) and was associated with poor outcome. We developed an assay to detect serum soluble B7x (sB7x) and investigated 101 patients with clear cell RCC who underwent nephrectomy between 2003 and 2007. For controls, we obtained serum from 101 sex-matched blood donors within the same age range. Following an Enzyme-Linked Immunosorbent Assay for sB7x, detectable levels (>0.1ng/ml) of sB7x were observed in 53 RCC patients compared with 18 controls (p7x for RCC patients and controls were 14.4ng/mL (0.1–56.9) and 2.7ng/mL (0.2–37.1), respectively. For RCC patients with detectable sB7x, median levels were significantly higher for patients with a tumor thrombus (19.2 vs 6.6ng/mL; p=0.007), positive lymph nodes (41.3 vs 10.3ng/mL; p=0.018), and distant metastases at nephrectomy (43.3 vs 8.5ng/mL; p=0.002) and tended to be higher in patients with high grade tumors (18.8 vs 8.5, p=0.090). Additionally, median sB7x levels for TNM stage I–IV RCC were 6.6, 10.3, 14.5, and 43.3ng/mL, respectively (p=0.012). In this first evaluation of sB7x in RCC, we demonstrate that RCC patients are more likely to have detectable sB7x compared with controls and higher sB7x levels correlate with advanced tumor stage. These early results merit further investigation of this serum marker for potential diagnostic and prognostic purposes. PMID:18676826

  3. Nonaqueous slip casting of YBa2Cu3O(7-x) superconductive ceramics. Ph.D. Thesis - 1993

    NASA Technical Reports Server (NTRS)

    Hooker, Matthew W.; Taylor, Theodore D.

    1994-01-01

    This study investigates the slip casting of YBa2Cu3O(7-x) powders using nonaqueous carrier liquids and fired ceramic molds. The parameters of the process examined here include the rheological properties of YBa2Cu3O(7-x) powder dispersed in various solvent/dispersant systems, the combination of nonaqueous slips with fired ceramic molds to form the superconductive ceramics, the process-property relationships using a four-factor factorial experiment, and the applicability of magnetic fields to align the YBa2Cu3O(7-x) grains during the casting process.

  4. Assessment of the plasma start-up in Wendelstein 7-X with neutral beam injection

    NASA Astrophysics Data System (ADS)

    Gradic, D.; Dinklage, A.; Brakel, R.; McNeely, P.; Osakabe, M.; Rust, N.; Wolf, R.; the W7-X Team; the LHD Experimental Group

    2015-03-01

    Plasma start-up by neutral beam injection was investigated for stellarators. A zero-dimensional collisional model was extended to evaluate the temporal evolution of the plasma start-up in a confining toroidal magnetic field. Inclusion of different beam energy components indicated a substantial effect due to the energy dependence of beam-gas collisions. Additional collision processes and particle equations were considered to simulate the plasma start-up in helium-hydrogen mixtures. The isotope effect between operation with hydrogen and deuterium beams was also investigated. As a major objective the conditions necessary for a plasma start-up with neutral beams in W7-X have been examined. The assessed beam configuration in W7-X was found not to allow plasma start-up by neutral beam injection alone. The model has been validated for experimental data from W7-AS and Large Helical Device. Quantitative predictions of this study show that the ratio of the beam-plasma interaction length and the plasma volume is an essential quantity for the successful plasma start-up with neutral beams.

  5. Sightline optimization of the multichannel laser interferometer for W7-X

    NASA Astrophysics Data System (ADS)

    Airila, M. I.; Dumbrajs, O.; Hirsch, M.; Geiger, J.; Neuner, U.; Hartfuss, H.-J.

    2005-02-01

    A multichannel CO2 laser interferometer is planned for electron density profile measurements in the Wendelstein 7-X stellarator under construction. This article describes the mathematical methods used to find the optimum orientation of the various sightlines. The problem of reconstructing local densities from line integrated density measurements can be formulated as a matrix inversion. The quality of the reconstruction is largely determined by the condition number of the matrix describing the problem, which has to be minimized, i.e., the sightlines have to be chosen such that the information content of different channels is maximally distinct. For the W7-X interferometer four- and eight-sightline arrangements are investigated and their orientations are optimized for standard conditions of magnetic configuration and density profile. The optimized arrangements are tested by simulating the inversion of hypothetical reference density profiles in a number of different magnetic configurations. In the ideal case the error of a reconstruction using four sightlines is typically a few times larger than that with eight sightlines. The robustness of the optimization is demonstrated by a variation of the position of the whole interferometer, and the influence of noisy phase data on the reconstructed profiles is investigated. These factors significantly narrow the difference between the four- and eight-beam setups. Finally, the use of regularization methods for the analysis of experimental data is briefly discussed.

  6. Development of a virtual Z{sub eff} diagnostic for the W7-X stellarator

    SciTech Connect

    Krychowiak, M.; Dodt, D.; Dreier, H.; Koenig, R.; Wolf, R.

    2008-10-15

    For the W7-X stellarator a diagnostic system for measurement of local Z{sub eff} values from the visible bremsstrahlung continuum is foreseen. The method is based on passive, absolute measurement of the bremsstrahlung intensity along several lines of sight. In order to eliminate the spurious impact of other radiation sources of different spectral intensity distribution than the bremsstrahlung, like the line radiation, it is intended to spectrally resolve the detected radiation, e.g., by use of microspectrometers. The visible bremsstrahlung background can be extracted by making use of the 1/{lambda}{sup 2} dependence of its intensity (expressed in unit W/m{sup 3} sr nm) in the high temperature plasmas by using Bayesian data analysis techniques. In a second step, the local values of Z{sub eff} as a function of the effective plasma radius are derived by inversion, using different regularization methods, of the line-integrated bremsstrahlung signals with the knowledge of the magnetic flux surfaces. Inversion of the full model based on statistical methods allows taking into account all conceivable uncertainties accompanying Z{sub eff} measurement and provides uncertainties of the local Z{sub eff} values and valuable information on other uncertain parameters of the model. In this paper we show the first steps in developing a virtual Z{sub eff} diagnostic for W7-X which allows the optimization of the statistical model as well as of the future diagnostic setup.

  7. Sequentially evaporated thin film YBa2Cu3O(7-x) superconducting microwave ring resonator

    NASA Technical Reports Server (NTRS)

    Rohrer, Norman J.; To, Hing Y.; Valco, George J.; Bhasin, Kul B.; Chorey, Chris; Warner, Joseph D.

    1990-01-01

    There is great interest in the application of thin film high temperature superconductors in high frequency electronic circuits. A ring resonator provides a good test vehicle for assessing the microwave losses in the superconductor and for comparing films made by different techniques. Ring resonators made of YBa2Cu3O(7-x) have been investigated on LaAlO3 substrates. The superconducting thin films were deposited by sequential electron beam evaporation of Cu, Y, and BaF2 with a post anneal. Patterning of the superconducting film was done using negative photolithography. A ring resonator was also fabricated from a thin gold film as a control. Both resonators had a gold ground plane on the backside of the substrate. The ring resonators' reflection coefficients were measured as a function of frequency from 33 to 37 GHz at temperatures ranging from 20 K to 68 K. The resonator exhibited two resonances which were at 34.5 and 35.7 GHz at 68 K. The resonant frequencies increased with decreasing temperature. The magnitude of the reflection coefficients was in the calculation of the unloaded Q-values. The performance of the evaporated and gold resonator are compared with the performance of a laser ablated YBa2Cu3O(7-x) resonator. The causes of the double resonance are discussed.

  8. Bayesian Gaussian Process Tomography of W7-X bolometers using the Minerva framework

    NASA Astrophysics Data System (ADS)

    Svensson, Jakob; Zhang, Daihong

    2016-10-01

    We develop a new Bayesian tomographic method based on Gaussian processes (Gaussian Process Tomography, GPT) where the model complexity is adjusted automatically, varying between 1D flux surface constancy and full 2D using a Bayesian Occam's razor criteria. The GPT method for non-flux surface constrained tomography has been prevously developed and used for soft x-ray, bolometer, interferometer and current tomography problems. In this paper we present an extension of this method which allows for a probabilistic flux surface constraint, that finds the most probable underlying complexity of the emission distribution. The distribution is defined in 2D flux coordinates, where the poloidal coordinate is described by a periodic Gaussian process. As with the standard GPT method, this method also gives uncertainties of the tomographic reconstruction that includes uncertainties both from measurements and from intrinsic ambiguities of the ill-posed tomography problem. The method has been applied to the bolometer system for the first experimental phase of W7-X and results will be shown here. The model has been implemented in the Minerva Bayesian modeling framework, which is used for a number of W7-X diagnostics.

  9. Fractional pressure measurements in the W7-X startup phase with a spectroscopically assisted Penning gauge

    NASA Astrophysics Data System (ADS)

    Kremeyer, Thierry; Schmitz, Oliver; Wenzel, Uwe; Flesch, Kurt; W7-X Team

    2016-10-01

    Studies of helium exhaust from stellarator divertors is important to qualify for maintaining low overall helium concentrations for future reactors. Penning gauges assisted by spectroscopy were used to measure total neutral pressure and to resolve the D and He partial pressures. A similar system was installed on an outboard vacuum flange as a generic feasibility test for W7-X. In this contribution, initial results from the W7-X startup phase are shown. A compact CCD spectrometer with a range from 500 to 1000 nm was used to observe the Penning discharge. With a long integration time of 25s, He lines can be seen down to 10-5 mbar and Hα lines down to 10-6 mbar. The impact of He cleaning discharges on the in-situ neutral gas spectrum was measured and will be discussed in comparison to the mass spectrometers on the device. This initial test is the basis for developing optimized Penning gauges, which will be deployed to measure the D/He pressure ratios inside of the island divertor. The status of this development will be discussed. This work was funded in part by the Department of Energy under Grants DE-SC0012315 and DE-SC0014210 and from EUROfusion under Grant No 633053.

  10. 78 FR 67018 - Airworthiness Directives; Embraer S.A. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-08

    ... receipt. FOR FURTHER INFORMATION CONTACT: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane...; email: jim.rutherford@faa.gov . SUPPLEMENTARY INFORMATION: Discussion The Agencia Nacional De Aviacoa.... Send information to ATTN: Jim Rutherford, Aerospace Engineer, FAA, Small Airplane Directorate,...

  11. Error field measurement, correction and heat flux balancing on Wendelstein 7-X

    NASA Astrophysics Data System (ADS)

    Lazerson, Samuel A.; Otte, Matthias; Jakubowski, Marcin; Israeli, Ben; Wurden, Glen A.; Wenzel, Uwe; Andreeva, Tamara; Bozhenkov, Sergey; Biedermann, Christoph; Kocsis, Gábor; Szepesi, Tamás; Geiger, Joachim; Pedersen, Thomas Sunn; Gates, David; The W7-X Team

    2017-04-01

    The measurement and correction of error fields in Wendelstein 7-X (W7-X) is critical to long pulse high beta operation, as small error fields may cause overloading of divertor plates in some configurations. Accordingly, as part of a broad collaborative effort, the detection and correction of error fields on the W7-X experiment has been performed using the trim coil system in conjunction with the flux surface mapping diagnostic and high resolution infrared camera. In the early commissioning phase of the experiment, the trim coils were used to open an n/m  =  1/2 island chain in a specially designed magnetic configuration. The flux surfacing mapping diagnostic was then able to directly image the magnetic topology of the experiment, allowing the inference of a small  ∼4 cm intrinsic island chain. The suspected main sources of the error field, slight misalignment and deformations of the superconducting coils, are then confirmed through experimental modeling using the detailed measurements of the coil positions. Observations of the limiters temperatures in module 5 shows a clear dependence of the limiter heat flux pattern as the perturbing fields are rotated. Plasma experiments without applied correcting fields show a significant asymmetry in neutral pressure (centered in module 4) and light emission (visible, H-alpha, CII, and CIII). Such pressure asymmetry is associated with plasma-wall (limiter) interaction asymmetries between the modules. Application of trim coil fields with n  =  1 waveform correct the imbalance. Confirmation of the error fields allows the assessment of magnetic fields which resonate with the n/m  =  5/5 island chain. Notice: This manuscript has been authored by Princeton University under Contract Number DE-AC02-09CH11466 with the U.S. Department of Energy. The publisher, by accepting the article for publication acknowledges, that the United States Government retains a non-exclusive, paid-up, irrevocable, world

  12. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  13. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  14. 14 CFR 21.5 - Airplane or Rotorcraft Flight Manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... furnished in an Airplane or Rotorcraft Flight Manual or in manual material, markings, and placards, by the... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Airplane or Rotorcraft Flight Manual. 21.5... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS General § 21.5 Airplane or Rotorcraft Flight Manual. Link to...

  15. 14 CFR 121.141 - Airplane flight manual.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane flight manual. 121.141 Section 121... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.141 Airplane flight manual. (a) Each certificate holder shall keep a current approved airplane flight manual for each type...

  16. 14 CFR 121.303 - Airplane instruments and equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane instruments and equipment. 121.303... Airplane instruments and equipment. (a) Unless otherwise specified, the instrument and equipment... airspeed limitation and item of related information in the Airplane Flight Manual and pertinent...

  17. 14 CFR 121.503 - Flight time limitations: Pilots: airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Flight time limitations: Pilots: airplanes... Operations § 121.503 Flight time limitations: Pilots: airplanes. (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any...

  18. 14 CFR 121.503 - Flight time limitations: Pilots: airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight time limitations: Pilots: airplanes... Operations § 121.503 Flight time limitations: Pilots: airplanes. (a) A certificate holder conducting supplemental operations may schedule a pilot to fly in an airplane for eight hours or less during any...

  19. 14 CFR 125.205 - Equipment requirements: Airplanes under IFR.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Equipment requirements: Airplanes under IFR... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Equipment Requirements § 125.205 Equipment requirements: Airplanes under IFR. No person may operate...

  20. 14 CFR 125.91 - Airplane requirements: General.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane requirements: General. 125.91... AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane...

  1. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off,...

  2. 14 CFR 121.199 - Nontransport category airplanes: Takeoff limitations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Nontransport category airplanes: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.199 Nontransport category airplanes: Takeoff limitations. (a) No person operating...

  3. 14 CFR 121.570 - Airplane evacuation capability.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane evacuation capability. 121.570... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Flight Operations § 121.570 Airplane evacuation capability. (a) No person may cause an airplane carrying passengers to be moved on the surface, take off,...

  4. 14 CFR 61.159 - Aeronautical experience: Airplane category rating.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aeronautical experience: Airplane category... Transport Pilots § 61.159 Aeronautical experience: Airplane category rating. (a) Except as provided in... certificate with an airplane category and class rating must have at least 1,500 hours of total time as a...

  5. 14 CFR 125.91 - Airplane requirements: General.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane requirements: General. 125.91... AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Airplane...

  6. 14 CFR 125.205 - Equipment requirements: Airplanes under IFR.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Equipment requirements: Airplanes under IFR... CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD... Equipment Requirements § 125.205 Equipment requirements: Airplanes under IFR. No person may operate...

  7. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 1 2011-01-01 2011-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment § 23.1437 Accessories for multiengine airplanes. For multiengine...

  8. 14 CFR 121.303 - Airplane instruments and equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane instruments and equipment. 121.303... Airplane instruments and equipment. (a) Unless otherwise specified, the instrument and equipment... airspeed limitation and item of related information in the Airplane Flight Manual and pertinent...

  9. 14 CFR 121.199 - Nontransport category airplanes: Takeoff limitations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Nontransport category airplanes: Takeoff... OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Airplane Performance Operating Limitations § 121.199 Nontransport category airplanes: Takeoff limitations. (a) No person operating...

  10. 14 CFR 23.1437 - Accessories for multiengine airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Accessories for multiengine airplanes. 23... TRANSPORTATION AIRCRAFT AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES Equipment Miscellaneous Equipment § 23.1437 Accessories for multiengine airplanes. For multiengine...

  11. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  12. 14 CFR 121.159 - Single-engine airplanes prohibited.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Single-engine airplanes prohibited. 121.159... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Aircraft Requirements § 121.159 Single-engine airplanes prohibited. No certificate holder may operate a single-engine airplane under this part....

  13. 77 FR 58787 - Airworthiness Directives; Bombardier, Inc. Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ... Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes. The existing... would expand the applicability by adding Model CL-600- 2C10 (Regional Jet Series 700, 701, &...

  14. 78 FR 24673 - Airworthiness Directives; The Boeing Company Airplanes

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-26

    ... unsafe condition for in-service airplanes. For all future delivered airplanes, the replacement batteries... airplanes. That AD currently requires modification of the battery system, or other actions. This AD requires installing main and auxiliary power unit (APU) battery enclosures and environmental control system...

  15. 14 CFR 121.141 - Airplane flight manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 121.141 Section 121... REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS Manual Requirements § 121.141 Airplane flight manual. (a) Each certificate holder shall keep a current approved airplane flight manual for each type...

  16. 14 CFR 125.75 - Airplane flight manual.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Airplane flight manual. 125.75 Section 125...,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Manual Requirements § 125.75 Airplane flight manual. (a) Each certificate holder shall keep a current approved Airplane Flight Manual...

  17. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  18. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  19. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  20. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  1. 14 CFR 125.407 - Maintenance log: Airplanes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Maintenance log: Airplanes. 125.407 Section... Maintenance log: Airplanes. (a) Each person who takes corrective action or defers action concerning a reported... record the action taken in the airplane maintenance log in accordance with part 43 of this chapter....

  2. Quantifying and scaling airplane performance in turbulence

    NASA Astrophysics Data System (ADS)

    Richardson, Johnhenri R.

    This dissertation studies the effects of turbulent wind on airplane airspeed and normal load factor, determining how these effects scale with airplane size and developing envelopes to account for them. The results have applications in design and control of aircraft, especially small scale aircraft, for robustness with respect to turbulence. Using linearized airplane dynamics and the Dryden gust model, this dissertation presents analytical and numerical scaling laws for airplane performance in gusts, safety margins that guarantee, with specified probability, that steady flight can be maintained when stochastic wind gusts act upon an airplane, and envelopes to visualize these safety margins. Presented here for the first time are scaling laws for the phugoid natural frequency, phugoid damping ratio, airspeed variance in turbulence, and flight path angle variance in turbulence. The results show that small aircraft are more susceptible to high frequency gusts, that the phugoid damping ratio does not depend directly on airplane size, that the airspeed and flight path angle variances can be parameterized by the ratio of the phugoid natural frequency to a characteristic turbulence frequency, and that the coefficient of variation of the airspeed decreases with increasing airplane size. Accompanying numerical examples validate the results using eleven different airplanes models, focusing on NASA's hypothetical Boeing 757 analog the Generic Transport Model and its operational 5.5% scale model, the NASA T2. Also presented here for the first time are stationary flight, where the flight state is a stationary random process, and the stationary flight envelope, an adjusted steady flight envelope to visualize safety margins for stationary flight. The dissertation shows that driving the linearized airplane equations of motion with stationary, stochastic gusts results in stationary flight. It also shows how feedback control can enlarge the stationary flight envelope by alleviating

  3. Airplane takeoff and landing performance monitoring system

    NASA Technical Reports Server (NTRS)

    Middleton, David B. (Inventor); Srivatsan, Raghavachari (Inventor); Person, Lee H., Jr. (Inventor)

    1994-01-01

    The invention is a real-time takeoff and landing performance monitoring system for an aircraft which provides a pilot with graphic and metric information to assist in decisions related to achieving rotation speed (VR) within the safe zone of a runway, or stopping the aircraft on the runway after landing or take-off abort. The system processes information in two segments: a pretakeoff segment and a real-time segment. One-time inputs of ambient conditions and airplane configuration information are used in the pretakeoff segment to generate scheduled performance data. The real-time segment uses the scheduled performance data, runway length data and transducer measured parameters to monitor the performance of the airplane throughout the takeoff roll. Airplane acceleration and engine-performance anomalies are detected and annunciated. A novel and important feature of this segment is that it updates the estimated runway rolling friction coefficient. Airplane performance predictions also reflect changes in head wind occurring as the takeoff roll progresses. The system provides a head-down display and a head-up display. The head-up display is projected onto a partially reflective transparent surface through which the pilot views the runway. By comparing the present performance of the airplane with a continually predicted nominal performance based upon given conditions, performance deficiencies are detected by the system and conveyed to pilot in form of both elemental information and integrated information.

  4. Precision controllability of the YF-17 airplane

    NASA Technical Reports Server (NTRS)

    Sisk, T. R.; Mataeny, N. W.

    1980-01-01

    A flying qualities evaluation conducted on the YF-17 airplane permitted assessment of its precision controllability in the transonic flight regime over the allowable angle of attack range. The precision controllability (tailchase tracking) study was conducted in constant-g and windup turn tracking maneuvers with the command augmentation system (CAS) on, automatic maneuver flaps, and the caged pipper gunsight depressed 70 mils. This study showed that the YF-17 airplane tracks essentially as well at 7 g's to 8 g's as earlier fighters did at 4 g's to 5 g's before they encountered wing rock. The pilots considered the YF-17 airplane one of the best tracking airplanes they had flown. Wing rock at the higher angles of attack degraded tracking precision, and lack of control harmony made precision controllability more difficult. The revised automatic maneuver flap schedule incorporated in the airplane at the time of the tests did not appear to be optimum. The largest tracking errors and greatest pilot workload occurred at high normal load factors at low angles of attack. The pilots reported that the high-g maneuvers caused some tunnel vision and that they found it difficult to think clearly after repeated maneuvers.

  5. Airplane takeoff and landing performance monitoring system

    NASA Technical Reports Server (NTRS)

    Middleton, David B. (Inventor); Srivatsan, Raghavachari (Inventor); Person, Jr., Lee H. (Inventor)

    1991-01-01

    The invention is a real-time takeoff and landing performance monitoring system for an aircraft which provides a pilot with graphic and metric information to assist in decisions related to achieving rotation speed (V.sub.R) within the safe zone of a runway, or stopping the aircraft on the runway after landing or take-off abort. The system processes information in two segments: a pretakeoff segment and a real-time segment. One-time inputs of ambient conditions and airplane configuration information are used in the pretakeoff segment to generate scheduled performance data. The real-time segment uses the scheduled performance data, runway length data and transducer measured parameters to monitor the performance of the airplane throughout the takeoff roll. Airplane and engine performance deficiencies are detected and annunciated. A novel and important feature of this segment is that it updates the estimated runway rolling friction coefficient. Airplane performance predictions also reflect changes in head wind occurring as the takeoff roll progresses. The system provides a head-down display and a head-up display. The head-up display is projected onto a partially reflective transparent surface through which the pilot views the runway. By comparing the present performance of the airplane with a predicted nominal performance based upon given conditions, performance deficiencies are detected by the system.

  6. Thin-film multilayer interconnect technology for YBa2Cu3O7 - x

    NASA Astrophysics Data System (ADS)

    Wellstood, F. C.; Kingston, J. J.; Clarke, John

    1994-01-01

    The construction of microelectronic circuits from high-transition-temperature (Tc) superconductors requires techniques for producing thin-film wires, insulating crossovers, and vias (window contacts) between wires. Together, these three components form a superconducting interconnect technology. The challenges encountered in developing such a technology for high-Tc superconductors involve factors associated with the materials, the circuits and the fabrication techniques. The use of pulsed laser deposition in conjunction with shadow mask patterning, photolithographic pattern definition, acid etching, ion-beam etching, and surface cleaning to produce multilayer interconnects from YBa2Cu3O7-x (YBCO) is discussed. These processes have been used to construct a variety of passive high-temperature superconducting components and circuits, including crossovers, window contacts, multiturn coils, and flux transformers. Integrated magnetometers incorporating superconducting quantum interference devices, multichip modules with semiconductor die bonded to YBCO interconnect structures, and analog-to-digital converters have also been successfully demonstrated.

  7. Magnetic flux relaxation in YBa2Cu3)(7-x) thin film: Thermal or athermal

    NASA Technical Reports Server (NTRS)

    Vitta, Satish; Stan, M. A.; Warner, J. D.; Alterovitz, S. A.

    1991-01-01

    The magnetic flux relaxation behavior of YBa2Cu3O(7-x) thin film on LaAlO3 for H is parallel to c was studied in the range 4.2 - 40 K and 0.2 - 1.0 T. Both the normalized flux relaxation rate S and the net flux pinning energy U increase continuously from 1.3 x 10(exp -2) to 3.0 x 10(exp -2) and from 70 to 240 meV respectively, as the temperature T increases from 10 to 40 K. This behavior is consistent with the thermally activated flux motion model. At low temperatures, however, S is found to decrease much more slowly as compared with kT, in contradiction to the thermal activation model. This behavior is discussed in terms of the athermal quantum tunneling of flux lines. The magnetic field dependence of U, however, is not completely understood.

  8. Levitation of YBa2Cu3O(7-x) superconductor in a variable magnetic field

    NASA Technical Reports Server (NTRS)

    Terentiev, Alexander N.; Kuznetsov, Anatoliy A.

    1992-01-01

    The influence of both a linear alternating and rotational magnetic field component on the levitation behavior of a YBa2Cu3O(7-x) superconductor was examined. The transition from a plastic regime of levitation to an elastic one, induced by an alternating field component, was observed. An elastic regime in contrast to a plastic one is characterized by the unique position of stable levitation and field frequency dependence of relaxation time to this position. It was concluded that the vibrations of a magnet levitated above the superconductor can induce a transition from a plastic regime of levitation to an elastic one. It was found that a rotational magnetic field component induced rotations of a levitated superconductor. Rotational frictional motion of flux lines is likely to be an origin of torque developed. A prototype of a motor based on a levitated superconductor rotor is proposed.

  9. HV-system for CW-gyrotrons at W7-X and the relevance for ITER

    NASA Astrophysics Data System (ADS)

    Braune, H.; Brand, P.; Krampitz, R.; Leonhardt, W.; Mellein, D.; Michel, G.; Mueller, G.; Sachtleben, J.; Winkler, M.; W7-X ECRH Teams at IPP IPF; FZK

    2005-01-01

    Electron Cyclotron Resonance Heating (ECRH) is the main heating method for the Wendelstein 7-X Stellarator (W7-X), which is under construction at IPP-Greifswald. A 10 MW ECRH plant with CW-capability at 140 GHz is under construction to meet the scientific objectives. The microwave power is generated by 10 gyrotrons with 1 MW each two gyrotrons are operational at IPP in Greifswald. The tubes are equipped with a single-stage depressed collector for energy recovery and operate with an output power modulation between 0.3 and 1 MW with a sinusoidal frequency of up to 10 kHz which is achieved by modulating the depression voltage and is an interesting feature for NTM control at ITER. The general features of the ECRH-plant such as frequency power, cw-capability, flexibility and the experimental experience are of high relevance for the ITER system. Each gyrotron is fed by two high-voltage sources. A high-power supply for driving the electron beam and a precision low-power supply for beam acceleration. The high-power facility consists of modular solid state HV-supplies (-65 kV 50/100 A) providing fast power control and high flexibility. The low-power high-voltage source for beam acceleration is realized by a feed back controlled high-voltage servo-amplifier driving the depression voltage. A protection system with a thyratron crowbar for fast power removal in case of gyrotron failure by arcing is installed. Both the high power and low-power high-voltage sources have the capability to supply a 2 MW ITER gyrotron without any modification. Analogue electronic devices control the fast functions of the high-voltage system for each gyrotron and a hierarchy of industrial standard PLCs and computers supervise the whole ECRH-plant.

  10. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  11. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  12. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  13. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  14. 14 CFR 135.422 - Aging airplane inspections and records reviews for multiengine airplanes certificated with nine...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Aging airplane inspections and records... Maintenance, and Alterations § 135.422 Aging airplane inspections and records reviews for multiengine... aging airplane inspection and records review required by this section. During the inspection and...

  15. Statical longitudinal stability of airplanes

    NASA Technical Reports Server (NTRS)

    Warner, Edward P

    1921-01-01

    This report, which is a continuation of the "Preliminary report on free flight testing" (report no. NACA-TR-70), presents a detailed theoretical analysis of statical stability with free and locked controls and also the results of many free flight test on several types of airplanes. In developing the theory of stability with locked controls an expression for pitching moment is derived in simple terms by considering the total moment as the sum of the moments due to wings and tail surface. This expression, when differentiated with respect to angle of incidence, enables an analysis to be made of the factors contributing to the pitching moment. The effects of slipstream and down wash are also considered and it is concluded that the C. G. Location has but slight effect or stability, and that stability is much improved by increasing the efficiency of the tail surfaces, which may be done by using an "inverted" tail plane. The results of free flight tests with locked controls are discussed at length and it is shown that the agreement between the experimental results and theory is very satisfactory. The theory of stability with free controls is not amendable to the simple mathematical treatment used in the case of locked controls, but a clear statement of the conditions enables several conclusions to be drawn, one of which is that the fixed tail surfaces should be much larger than the movable surfaces.

  16. Practical stability and controllability of airplanes

    NASA Technical Reports Server (NTRS)

    Norton, F H

    1923-01-01

    The effect of the characteristics of an airplane on balance, stability, and controllability, based on free flight tests, is discussed particularly in respect to the longitudinal motion. It is shown that the amount of longitudinal stability can be varied by changing the position of the center of gravity or by varying the aspect ratio of the tail plane, and that the stability for any particular air speed can be varied by changing the camber of the tail plane. It is found that complete longitudinal stability may be obtained even when the tail plane is at all times a lifting surface. Empirical values are given for the characteristics of a new airplane for producing any desired amount of stability and control, or to correct the faults of an airplane already constructed. (author)

  17. Analytic prediction of airplane equilibrium spin characteristics

    NASA Technical Reports Server (NTRS)

    Adams, W. M., Jr.

    1972-01-01

    The nonlinear equations of motion are solved algebraically for conditions for which an airplane is in an equilibrium spin. Constrained minimization techniques are employed in obtaining the solution. Linear characteristics of the airplane about the equilibrium points are also presented and their significance in identifying the stability characteristics of the equilibrium points is discussed. Computer time requirements are small making the method appear potentially applicable in airplane design. Results are obtained for several configurations and are compared with other analytic-numerical methods employed in spin prediction. Correlation with experimental results is discussed for one configuration for which a rather extensive data base was available. A need is indicated for higher Reynolds number data taken under conditions which more accurately simulate a spin.

  18. The Development of German Army Airplanes During the War

    NASA Technical Reports Server (NTRS)

    Wilhelm, Hoff

    1921-01-01

    The author, who was a captain of the Reserves in the Technical Department of the Aviation Division (Board of Airplane Experts) during the war, shows what means were taken for the creation of new airplane types and what tests were employed for trying out their flying properties, capacities and structural reliability. The principal representative types of each of the classes of airplanes are described and the characteristics of the important structural parts are discussed. Data regarding the number of airplanes at the front and the flying efficiency of the various classes of airplanes are given.

  19. Stresses Produced in Airplane Wings by Gusts

    NASA Technical Reports Server (NTRS)

    Kussner, Hans Georg

    1932-01-01

    Accurate prediction of gust stress being out of the question because of the multiplicity of the free air movements, the exploration of gust stress is restricted to static method which must be based upon: 1) stress measurements in free flight; 2) check of design specifications of approved type airplanes. With these empirical data the stress must be compared which can be computed for a gust of known intensity and structure. This "maximum gust" then must be so defined as to cover the whole ambit of empiricism and thus serve as prediction for new airplane designs.

  20. Solar-powered airplanes: A historical perspective and future challenges

    NASA Astrophysics Data System (ADS)

    Zhu, Xiongfeng; Guo, Zheng; Hou, Zhongxi

    2014-11-01

    Solar-powered airplanes are studied in this research. A solar-powered airplane consumes solar energy instead of traditional fossil fuels; thus it has received a significant amount of interest from researchers and the public alike. The historical development of solar-powered airplanes is reviewed. Notable prototypes, particularly those sponsored by the government, are introduced in detail. Possible future applications of solar-powered airplanes in the civilian and military fields are proposed. Finally, the challenges being faced by solar-powered airplanes are discussed. This study proposes that the solar-powered airplanes are potential alternatives to some present technologies and that they complement current satellites, traditional airplanes, airships, and balloons. However, these planes require further development and enormous technical obstacles must be addressed.