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

Now showing items 1141-1160 of 3613

    • NASA-LLIS-0019 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1991
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In Building 30 at the Johnson Space Center, a contractor electrician received an electrical shock to the hand and forearm from contacting an energized (480 volt AC) power ...
      Subject(s) : Configuration Management , Energy , Facilities , Hardware , Human Resources & Education , Safety & Mission Assurance ,

    • NASA-LLIS-0952 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Challenger (Space Shuttle Flight #51L) accident triggered a detailed review of all of the joints in the Solid Rocket Motor. Analyses showed a potential weakness and ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Launch Vehicle ,

    • NACA-TR-184 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1924
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report describes the new method for making computations in connection with the study of rigid airship, which was used in the investigation of the navy's ZR-1 by the special subcommittee of the National Advisory Committee ...
      Subject(s) : AERODYNAMIC , AERODYNAMICS , AIRSHIPS , COMPUTATIONAL , DYNAMICS , FLUID , FORCES , HULLS , RIGID , STRUCTURES ,

    • NASA-LLIS-0567 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Command and Control Subsystem for a commercial satellite lacked software command constraint checks. A gyro sensitivity setting that was incompatible with on-orbit testing of the thrusters ...
      Subject(s) : Production-line Satellites ,

    • NASA-LLIS-1338 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On Monday, April 15, 2002 at approximately 5:45 PM the following incident occurred on the Stennis Space Center A1 test stand, level 5 upper engine work deck.
      Subsequent ...
      Subject(s) : Ground Equipment , Ground Operations , Human Factors , Occupational Health , Policy & Planning , Test Facility ,

    • NASA-MEMO-12-21-58 REV L 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1959
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Several flush and scoop-type auxiliary inlets have been tested for a range of Mach numbers from 0.55 to 1.3 to determine their transonic total-pressure recovery and drag characteristics. The inlet dimensions were comparable ...

    • NASA-LLIS-2918 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Cryogenic propulsion systems use extremely cold propellants and high pressures to achieve the thrust-to-weight ratios required for space vehicles. Leakage from these systems during operation ...
      Subject(s) : Cryogenic Systems , Launch support systems , Level II/III requirements definition , Propulsion , Reliability , Risk management , Vehicle concepts ,

    • NASA-LLIS-1078 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Increased Space Shuttle Main Engine (SSME) Power Setting for Intact Aborts
      Subject(s) : Aerospace Safety Advisory Panel , Cryogenic Systems , Ground Operations , Launch Process , Parts Materials & Processes , Policy & Planning , Pressure Vessels , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NASA-LLIS-0783 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Perform thermal dwell test on protoflight hardware over the temperature range of +75°C/-20°C (applied at the thermal control/mounting surface or shearplate) for 24 hours at the cold ...

    • NASA-LLIS-4658 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On the Constellation Program contract for reusable solid rockets, the KSC ground operations supplied ground process knowledge input to the design of the First Stage systems. ...
      Subject(s) : Acquisition / procurement strategy and planning , Communications between different offices and contractor personnel , Contractor relationships , Cross Agency coordination , Program Management. ,

    • NASA-LLIS-1159 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Current SOFIA 747-SP Aircraft Cannot be Rated for International Flight Without Avionics Upgrades
      Subject(s) : Aerospace Safety Advisory Panel , Aircraft , Computers , Policy & Planning , Safety & Mission Assurance , Software , Test & Verification ,

    • NASA-LLIS-0775 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Define an appropriate random vibration test, and subject all assemblies and selected subsystems to the test for design qualification and workmanship flight acceptance.

    • NASA-LLIS-1607 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Component manufacturer's advisories, along with low-inductance ground and power planes/paths within (sub)systems, must be heeded.
      Following the recommendations from the X43A Flight 1 MIB, ...
      Subject(s) : Accident Investigation , Flight Equipment , Hardware , Safety & Mission Assurance , Test & Verification ,

    • NACA-TR-808 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An approximate method is presented for the calculation of the external lift, moment, and pressure drag of slender open-nose bodies of revolution of supersonic speeds. The lift, moment, and pressure drag of a typical ram-jet ...
      Subject(s) : AIRCRAFT , APPROXIMATION , BODIES , COMPUTATIONAL , CONFIGURATIONS , DRAG , DYNAMICS , ENGINES , FLUID , INLETS , LIFT , MOMENTS , NOSE , PRESSURE , RAMJET , REVOLUTION , SLENDER , SPEED , SUPERSONIC ,

    • NASA-LLIS-0917 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      MCO\'s emphasis on lean, fast responding, project teams led to less oversight by the technical line organizations that might have detected the omissions and errors that led to mission loss. ...
      Subject(s) : Administration/Organization , Better , Cheaper (FBC) projects , communications , design reviews , Faster , Flight Operations , Human Resources & Education , industrial partners , organizational interfaces , Policy & Planning , project implementation plan , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , technical reviews , training ,

    • NACA-TN-3784 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Available theories on failure of flat plates are reviewed, and test data on the postbuckling behavior, effective width, and failure of flat curved plates are correlated. Test data on the crippling strength of various formed ...
      Subject(s) : ALLOYS , ALUMINUM , ANALYSIS , BOXES , BUCKLING , COMPOSITE , COMPRESSIVE , CONSTRUCTION , CORNERS , CURVED , EDGE , FAILURE , FLANGES , FLAT , FORCES , HANDBOOKS , HINGES , LOADING , LOADS , MATERIALS , MATHEMATICS , PANELS , PLATES , STABILITY , STRENGTH , STRUCTURAL , STRUCTURES ,

    • NASA-TM-214341 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Clearance control is of paramount importance to turbomachinery designers and is required to meet today's aggressive power output, efficiency, and operational life goals. Excessive clearances lead to losses in cycle efficiency, ...
      Subject(s) : ABRASION , COMBUSTION CHAMBERS , COMPRESSORS , EROSION , GAS TURBINES , INGESTION (ENGINES) , LABYRINTH SEALS , METALS , POWER EFFICIENCY , SEALING , SHROUDS , SILICON CARBIDES , STEAM TURBINES , TENSILE STRENGTH , TURBOMACHINERY ,

    • NACA-TR-1098 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A summary of methods for making dynamic lateral stability and response calculations and for estimating the aerodynamic stability derivatives required for use in these calculations is presented. The processes of performing ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANALYSIS , APPROXIMATION , DAMPING , DERIVATIVES , DIRECTIONAL , DYNAMIC , LATERAL , MATHEMATICS , RESPONSE , SPEED , STABILITY , STATIC , SUBSONIC , SUPERSONIC , TRANSONIC ,

    • NASA/SP-2011-3422 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Scope and Depth
      This handbook provides guidance for conducting RM in the context of NASA program and project life cycles, which produce derived requirements in accordance with existing systems engineering ...

    • NASA-LLIS-0552 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Several randomly sampled exterior street and parking lot light poles were found to have defective electrical grounds that could result in a potentially lethal electric ...