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

Now showing items 841-860 of 3613

    • NACA-TN-4117 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was carried out in the Langley stability tunnel to determine the lift, drag, and pitching-moment characteristics of a family of annular airfoils. The five annular airfoils had equal projected areas but had ...

    • NASA-TM-X-73566 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1976
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A turbine noise prediction method for interim use in the NASA Aircraft Noise Prediction Program is selected. The method predicts the level, directivity, and one-third octave band spectra of far field turbine noise as a ...
      Subject(s) : AIRCRAFT ENGINES , AIRCRAFT NOISE , DIRECTIVITY , ENGINE NOISE , NOISE INTENSITY , PREDICTION ANALYSIS TECHNIQUES , TECHNOLOGY ASSESSMENT , TURBINES ,

    • NASA-LLIS-0625 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Lewis Spacecraft was procured by NASA via a 1994 contract with TRW, Inc., and launched on 23 August 1997. Contact with the spacecraft was subsequently lost on 26 August ...
      Subject(s) : Administration/Organization , Communication Systems , Computers , Financial Management , Flight Equipment , Flight Operations , Ground Operations , Hardware , Information Technology/Systems , Mishap Reporting , Risk Management/Assessment , Software , Spacecraft ,

    • NASA-LLIS-1455 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A list of potential facilities for Investigation Board use should be maintained to facilitate investigation start-up.
      Subject(s) : Accident Investigation , Administration/Organization , Facilities , Logistics , NASA Standards , Policy & Planning , Safety & Mission Assurance , Security ,

    • NASA-LLIS-0853 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      During the design of new (or upgrades to) motor generator set type DC drives, consider the use of solid state assemblies for control functions.

    • NACA-RM-A53H17 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTODUCTION
      Recent experimental results (refs. 1,2, and 3) have demonstrated that the transonic zero-lift drag rise of wing-body combinations is primarily a function of the magnitude and rate of change of cross-sectional ...

    • NASA-LLIS-0460 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Shrinkage during the curing of hard set, epoxy based, conformal coating caused cracked glass cases in many axial lead diodes in Ranger and Mariner flight computers. The lesson recommended ...
      Subject(s) : Parts Materials & Processes ,

    • NASA-LLIS-0184 

      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 LO2 and LH2 vent and relief valve position indicator switch tolerance allows the valve to indicate "closed" when it may be open up to 0.30 inch. This condition could ...
      Subject(s) : Flight Equipment , Ground Operations , Hazardous/Toxic Waste/Materials ,

    • NACA-TN-472 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1933
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Among the devices for increasing the maximum lift and also the drag of an airplane to improve the landing characteristics, is the split trailing-edge flap. With this arrangement the rear portion of the ...

    • NASA-LLIS-1206 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The high Program visibility of Multi-Element Integration Test (MEIT) warrants the need for detailed daily status. Unfortunately, the process for obtaining and providing ...
      Subject(s) : Administration/Organization , Configuration Management , Flight Operations , Ground Operations , Industrial Operations , Launch Process , Policy & Planning , Range Operations , Test & Verification ,

    • NASA-LLIS-1283 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Subject(s) : Administration/Organization , Human Resources & Education , Policy & Planning ,

    • NASA-LLIS-0828 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use thermographic mapping methods to locate hot spots on operating PC boards.

    • NASA-LLIS-1550 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Advanced Air Transportation Technologies (AATT) was a nine-year effort and experienced significant changes in documentation requirements from Headquarters and the lead center. This had an ...
      Subject(s) : Program and Project Management ,

    • NASA-LLIS-0038 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      After landing and prior to fuel cell deactivation, PRSD tank pressures normally will increase. The GH2 pressure will vent from the right side of the orbiter when pressures ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Explosives Handling , Facilities , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Hazardous/Toxic Waste/Materials , Launch Vehicle , Pressure Vessels ,

    • NACA-TN-2612 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The report presents information on the stress problems in the analysis of pressurized cabins of high-altitude aircraft not met with in other fields of stress analysis relating to aircraft. The material may be roughly divided ...

    • NASA-LLIS-0975 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In the 1995-1996 timeframe the Office of Safety and Mission Assurance (OSMA) began development of a distance learning capability under the umbrella of the Professional ...
      Subject(s) : Policy & Planning , Training Equipment ,

    • NACA-TR-1171 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been conducted in the Langley stability tunnel on a vertical-tail model with a stub fuselage in combination with various horizontal tails to determine the effect of horizontal-tail span and vertical ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ASSEMBLIES , CHARACTERISTICS , COMPARISON , COMPUTATIONAL , CONFIGURATIONS , DYNAMICS , FLUID , HORIZONTAL , LATERAL , LOCATION , MOMENTS , POSITION , ROLLING , SIDESLIP , STABILITY , STATIC , SURFACES , TAIL , TESTS , TUNNEL , WIND ,

    • NASA-LLIS-0586 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A commercial reference antenna used to test the Cassini-to-Probe RF link wrongly indicated that the spacecraft and probe antenna polarizations were both incorrect. The GSE reference antenna ...
      Subject(s) : COTS , Hardware , Procurement Small Business & Industrial Relations , Receiving Inspection , Test & Verification ,

    • NASA-LLIS-1440 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A basic set of minimum organizational support requirements for the NASA Task Force should be identified ahead of time at each NASA Center.
      Subject(s) : Accident Investigation , Administration/Organization , Emergency Preparedness , Human Resources & Education , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA NPD 9010.2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)