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

Now showing items 1761-1780 of 3613

    • NASA-LLIS-0104 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Performing work on S70-0613-00-001-0120 to change improperly sized flex hose restraints. When attempting removal of flex hose, gaseous nitrogen was released due to a ...
      Subject(s) : Configuration Management , Ground Operations , Hazardous/Toxic Waste/Materials , Safety & Mission Assurance ,

    • NASA-LLIS-1111 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Use of "Fire-Evident" Pyrotechnic Initiators.
      Subject(s) : Aerospace Safety Advisory Panel , Energetic Materials - Explosive/Propellant/Pyrotechnic , Flight Operations , Human Factors , Research & Development , Risk Management/Assessment , Spacecraft ,

    • NASA NPD 2810.1 REV D 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This directive is applicable to NASA Headquarters and NASA Centers. This directive also applies to NASA Component Facilities and the Jet Propulsion Laboratory (JPL) to the extent specified ...

    • NASA NPR 7120.7 

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

    • NASA-LLIS-0724 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Develop a maintenance concept early in the program life cycle to provide a basis for full maintainability support. It should be used to influence systems design to ensure that attributes for ...

    • NASA-LLIS-1854 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The CLCS project was initiated in FY 1997 to modernize the Launch Processing System (LPS) that was engineered and developed in the 1970s. The modernization was needed to ensure continued safe ...
      Subject(s) : Additional Categories.Launch Process , Additional Categories.Launch Vehicle , Additional Categories.Program and Project Management ,

    • NASA-TR-R-171 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1967
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Oblique shock wave parameter correlation for some specific heat ratios with application to real gas flows
      Subject(s) : FLOW , GAS , GASES , HEAT , OBLIQUE , REAL , SHOCK , SPECIFIC , WAVE , WAVES ,

    • NASA-LLIS-1821 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      As part of the Exploration Systems Mission Directorates Lessons Learned Project, Stennis Space Center has compiled the results of ongoing Lessons Learned interviews and a Lessons Learned ...

    • NACA-TR-548 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1937
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report presents the results of wind tunnel tests to determine the effect of wing-tip shape and dihedral on some of the aerodynamic characteristics of Clark Y wings that affect the performance and lateral stability of ...

    • NASA-LLIS-1518 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Because the MER Flight Control Team (FCT) was fully formed only one month prior to MER launch, critical software engineering and operations management problems resulted. Staff FCT participation ...
      Subject(s) : Deep Space Telemetry , Flight Operations , Ground Equipment , Ground Operations , Hardware , Program and Project Management , Safety & Mission Assurance , Software , Spacecraft , Test & Verification , Tracking and Command System (TTC) ,

    • NACA-TR-635 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1938
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Stability derivatives have been computed for twisted wings of different plan forms that include variations in both the wing taper and the aspect ratio. Taper ratios of 1.0, 0,50, and 0.25 are considered for each of three ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANGLES , COMPUTATIONAL , CONTROL , DERIVATIVES , DYNAMICS , FLUID , GEOMETRY , MOMENTS , ROLLING , SIDESLIP , STABILITY , SWEPT , TWISTED , WINGS , YAWING ,

    • NASA NPD 7100.8 REV E 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD applies to NASA Headquarters and all NASA Centers, including Component Facilities, and will be followed by all members of the research teams in all research experiments involving ...

    • NASA-TN-D-455 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A two-dimensional lifting circular cylinder has been tested over a Mach number range from 0.011 to 0.32 and a Reynolds number range from 135,000 to 1,580,000 to determine the force and pressure distribution characteristics. ...
      Subject(s) : AERODYNAMIC , AIR , ATTITUDE , CIRCULAR , COEFFICIENTS , CYLINDERS , DIMENSIONAL , DISTRIBUTION , DRAG , FLAT , FLOW , FOREBODIES , INCLINATION , LIFT , MACH , MINIMUM , MODELS , NUMBER , PLATES , PRESSURE , RATIO , REYNOLDS , TWO ,

    • NACA-TN-2941 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results of a free-flight investigation to determine the drag of circular, finite-length cylinders are presented for a Mach number range from about 0.5 to 1.3. Also included are drag results of previous experimental tests ...
      Subject(s) : BODIES , FINENESS , RATIO , SHAPE , VARIABLES ,

    • NASA-LLIS-0465 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Functional failures were attributed to varying resistance values through crimped electrical connections (contacts, splices, terminals). The variation was from several ...
      Subject(s) : Hardware , Parts Materials & Processes ,

    • NASA-TN-D-8391 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1977
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Classical drag equations were used to calculate total and induced drag and ratios of stabilizer lift to wing lift for a variety of conventional and canard configurations. The Flight efficiencies of such configurations that ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , CANARD , CONFIGURATIONS , DEVICES , DRAG , INDUCED , LIFT , MEASUREMENT , RATIO , STABILITY , STATIC , STRUCTURES , TANDEM , WING ,

    • NASA-LLIS-0274 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During thermal vacuum testing of the flight Mars Observer PDS, the subsystem was exposed to a temperature of about -47 degrees Celsius, well below the desired limit of -20 degrees C. The ...
      Subject(s) : Environment , Test & Verification ,

    • NASA-LLIS-1305 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Management reserve was tracked fairly accurately by the project manager, but was not effectively tracked in the institutional financial tracking system of the implementing ...
      Subject(s) : Administration/Organization , Financial Management ,

    • NACA-RM-L55J06 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Results of tests to determine the effect of spanwise location of the sweep discontinuity of M- and W-wings on the static longitudinal and lateral stability characteristics of a complete model are presented ...

    • NACA-ARR-E5F07 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: As part of an investigation of the cooling characteristics of liquid-cooled engines, tests were conducted with an electrically heated single-tube heat exchanger to determine the heat-transfer characteristics of an-e-2 ...
      Subject(s) : AIRCRAFT ENGINES , COOLANTS , ETHYLENE COMPOUNDS , FLOW VELOCITY , GLYCOLS , HEAT TRANSFER , HEAT TRANSFER COEFFICIENTS , LIQUID COOLING , LIQUID FLOW , MIXTURES , REYNOLDS NUMBER , TESTS , TUBE HEAT EXCHANGERS , WALL TEMPERATURE , WATER ,