NASA - National Aeronautics and Space Administration (NASA): Recent submissions

Now showing items 861-880 of 3613

    • NACA-TN-1674 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In an attempt to extend the maximum speed of airplanes into the transonic and supersonic speed range, an ever increasing number of airplanes are being designed with swept wings. The use of these plane forms ...
      Subject(s) : CARRIED , CHARACTERISTICS , CONTROL , DISTR , EFFECT , LAL , LOAD , MOMENTS , MPH , NACA , PITCHING , ROLLING , SURFACES , SWEEPBACK , SWEPTBACK , TESTS , TUNNEL , WIND , WINGS , WORK ,

    • NASA-TM-X-213 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Drag and static longitudinal and lateral stability characteristics of supersonic horizontal attitude VTOL aircraft model in wind tunnel
      Subject(s) : AERODYNAMIC , AIRCRAFT , ATTITUDE , CHARACTERISTICS , DRAG , INCLINATION , LATERAL , LONGITUDINAL , MACH , MODEL , MODELS , NUMBER , STABILITY , STATIC , SUPERSONIC , TAKEOFF , TUNNEL , VERTICAL , VTOL , WIND ,

    • NASA-LLIS-3097 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Leaks in the Space Shuttle ammonia boiler system, as well as a single instance of a boiler shutdown during postflight operation, led to a review of the materials and processes used in the ...
      Subject(s) : Engineering design and project processes and standards , Environmental Control and Life Support Systems , Long term sustainability and maintenance planning ,

    • NACA-RM-L58B05 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Considerable interest has been shown in the use of spoilers for lateral control and gust alleviation. The spoiler is more effective as a lateral control when it is located in a more rearward position, and, ...

    • NASA-LLIS-0160 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The payload bay bridge hoist system is located in the orbiter processing facility, and spans the length of the shuttle payload bay. The two bridges, mounted on platforms, ...
      Subject(s) : Facilities , Lifting Devices , Risk Management/Assessment ,

    • NASA-LLIS-6477 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: During a pilot exercise intended to advance the practice of EVM at NASA, the pilot project facilitators observed resistance from the projects towards making the project and institutional changes needed for effective ...

    • NASA-LLIS-1183 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1989
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Orbiter Processing Facility (OPF) Bay 2 Firex Deluge Zone 3 Viking arm valve AV1.3-2 was leaking, and on September 21, 1989, Problem Report (PR) number PV-6-140247 was ...
      Subject(s) : Emergency Preparedness , Facilities , Fire Protection , Ground Equipment , Ground Operations , Hardware , Human Factors , Logistics , Mishap Reporting ,

    • NASA-LLIS-0803 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Initiate the preparation of Critical Items Lists (CILs) early in programs to identify and potentially eliminate critical items before the design is frozen and as an input to hardware and ...

    • NASA-LLIS-0011 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1991
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Inspection of the Nose Landing Gear (NLG) tire revealed a 1/4" cut which appeared to have a small piece of wood embedded in it. The investigation of the tire included: (1) ...
      Subject(s) : Aircraft , Configuration Management , Facilities , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Launch Process , Launch Vehicle , Parts Materials & Processes ,

    • NACA-TR-267 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1928
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: In this report a formula for calculating the induced drag of multiplanes with end plates is derived. The frictional drag of the end plates are used, is sufficiently large to increase the efficiency of the wing. Curves ...
      Subject(s) : AERODYNAMIC , ASPECT , BIPLANES , COMPARISON , COMPUTATION , DRAG , END , FORMULAS , MATHEMATICS , MONOPLANES , PLATES , RATIO , REDUCTION , TESTS , TUNNEL , WIND , WINGS ,

    • NASA-LLIS-0944 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Starting in 1995, WSTF tested approximately 50 pyrovalves in order to provide insights into the Mars Observer and certain other spacecraft anomalies. The pyrotechnic blow-by ...
      Subject(s) : Configuration Management , Energetic Materials - Explosive/Propellant/Pyrotechnic , Flight Equipment , Flight Operations , Hardware , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification , Test Article ,

    • NACA-TN-4366 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made to determine the effects of an inverse-taper leading-edge flap on the drag ad on the static-longitudinal characteristics of a swept-wing-body combination. The wing had 45° of leading-edge ...

    • NASA-SP-237 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1970
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Lubrication, wear, and design aspects of rolling contact bearings.
      Subject(s) : CONFERENCES , FATIGUE LIFE , GEARS , LUBRICANTS , METAL FATIGUE , PERFORMANCE PREDICTION , PRODUCTION ENGINEERING , RHEOLOGY , ROLLER BEARINGS , ROLLING CONTACT LOADS , SLIDING FRICTION , STRUCTURAL DESIGN , SURFACE ROUGHNESS EFFECTS ,

    • NASA-LLIS-0559 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      When a new mission software release was uploaded to the spacecraft, the inflight upload failed to include a software patch that had been written to fix a defective countdown timer. Because ...

    • NASA-LLIS-1390 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A mission-critical error was discovered in the communications link between the Cassini spacecraft and its Huygens probe when it was determined that the radio frequencies would not adjust for ...
      Subject(s) : Communication Systems , design margin , Facilities , fault tolerance , Flight Operations , flight readiness , Hardware , Independent Verification and Validation , international partnering , link analysis , RF simulations , Safety & Mission Assurance , Spacecraft , subcarrier test , telecommunications design , telecommunications failure modes , telecommunications subcarrier , Test & Verification , test and integration , Test Facility , uplink design ,

    • NASA NPD 3280.3 REV J 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Applicability
      This NPD applies to NASA Headquarters and NASA Centers, including Component Facilities.
      The provisions of this NPD relate to the detailing of military personnel to NASA under the terms ...

    • NACA-RM-L54G21 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Data obtained in a program to determine the performance improvements attainable through the use of boundary-layer controls in annular diffusers applicable to turbo jet afterburners are summarized for five diffusers tested ...

    • NASA-CR-112236 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report presents analyses of the influence of a variety of factors on the strength of adhesive-bonded single-lap joints. The classical approach of Goland and Reissner is improved and extended. A deficiency in their ...
      Subject(s) : ADHESIVE , ANALYSIS , BONDING , COMPOSITE , FAILURE , FATIGUE , JOINTS , LAP , MATERIALS , STABILITY , STRESS , STRUCTURAL , TESTS ,

    • NASA-LLIS-1296 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A positive experience from rigorously maintaining a well-defined on-line risk management system.
      Subject(s) : Configuration Management , Risk Management/Assessment ,

    • NASA-STD-5018 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      The purpose of this Standard is to specify the minimum structural design requirements for the design, development, and verification of windows, glass, and ceramic structure included in National ...