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

Now showing items 3241-3260 of 3613

    • NASA-TN-D-3075 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1965
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Narrow band random and constant amplitude bending fatigue tests on Rene 41 specimens at room and elevated temperatures.
      Subject(s) : AMPLITUDE , AMPLITUDES , BENDING , BENDING FATIGUE , FATIGUE TEST , FATIGUE TESTS , HIGH TEMPERATURE , NARROWBAND , RAYLEIGH DISTRIBUTION , RENE 41 , ROOM TEMPERATURE ,

    • NASA-LLIS-0060 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1985
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During final closeout operations of the space shuttle orbiter in High Bay 2 of the Orbiter Processing Facility (OPF), a payload bay access platform fell from its stowed ...
      Subject(s) : Facilities , Ground Equipment , Ground Operations , Hardware , Hazardous/Toxic Waste/Materials , Industrial Operations , Safety & Mission Assurance ,

    • NACA-WRL-67 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1940
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The results of a series of tests to determine the effect of internal pressure on the buckling load of a thin cylinder under an applied torque indicated that internal pressure raises the shear buckling stress. The experimental ...
      Subject(s) : BUCKLING , CIRCULAR CYLINDERS , CRITICAL LOADING , CURVED PANELS , INTERNAL PRESSURE , PRESSURE EFFECTS , REINFORCED SHELLS , REINFORCEMENT RINGS , SHEAR STRESS , SKIN (STRUCTURAL MEMBER) , STIFFENING , STRUCTURAL FAILURE , TESTS , THEORIES , THIN WALLED SHELLS , TORSIONAL STRESS ,

    • NASA-LLIS-1031 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      DFRC B4822
      Incident Report: A workman was on a ladder spray painting alongside a sheet metal panel wall which had previously been insulated with large continuous ...
      Subject(s) : Environment , Facilities ,

    • NASA-CR-121016 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1972
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Propulsion system characteristics for a long range, high subsonic (Mach 0.90 - 0.98), jet commercial transport aircraft are studied to identify the most desirable cycle and engine configuration and to assess the payoff of ...
      Subject(s) : ENGINE DESIGN , NOISE REDUCTION , PROPULSION SYSTEM PERFORMANCE , TRANSPORT AIRCRAFT , TURBOFAN ENGINES ,

    • NASA-LLIS-0734 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Instrumentation systems and related sensors (transducers), particularly those designed for use in reusable and refurbishable launch systems and subsystems, are analyzed, designed, fabricated ...

    • NASA-LLIS-0659 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      The careful use of redundancy in Critical Kennedy Space Center (KSC) Ground Support Equipment (GSE) Mechanical Systems ensures reliable operation.

    • NASA-LLIS-1449 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Complex Action/Request for Information Forms require numerous iterations to implement crossorganizationally and may cause the authorization process to break down.
      Subject(s) : Accident Investigation , Administration/Organization , Configuration Management , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0887 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During preparation for public display of a Lunar Module Test Article, museum personnel claimed to be exposed to a small puff of brown/orange vapor, presumably oxidizer. ...
      Subject(s) : Administration/Organization , Cryogenic Systems , Disposal , Energetic Materials - Explosive/Propellant/Pyrotechnic , Environment , External Relations , Hazardous/Toxic Waste/Materials , Packaging Handling Storage , Risk Management/Assessment ,

    • NACA-TN-2504 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was made to determine the effects of wing position and horizontal-tail position on the low-speed static longitudinal and static lateral stability characteristics of airplane models having unswept and ...
      Subject(s) : AIRPLANES , COMBINATIONS , COMPLETE , FUSELAGE , STABILITY , STATIC , SWEEP , TAIL , WING , WINGS ,

    • NASA-CR-540 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1966
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Buckling of cylindrical shell end closures by internal pressure
      Subject(s) : BUCKLING , CLOSURES , CYLINDRICAL , INTERNAL , PRESSURE , SHELL , SHELLS ,

    • NACA-RM-A52L15 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Wind-tunnel tests at subsonic and supersonic speeds have been made for small-scale, aspect ratio 3 triangular wings. In order to extend the scope of data on the aspect ratio 3 triangular-wing plsm ...

    • NASA NPD 1460.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NASA Policy Directive (NPD) applies to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers, as well as onsite contractors ...

    • NASA-LLIS-0179 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A review of the considerations for the decision to fire the full scale motors in the horizontal position was based mostly on programmatic considerations and the concern ...
      Subject(s) : Test & Verification ,

    • NACA-TN-182 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1924
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The most important part of the resistance or drag of a wing system,the induced drag, can be calculated theoretically, when the distribution of lift on the individual wings is known. The calculation is based upon the ...

    • NASA-LLIS-1838 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      This report is the final product of a 90 day study performed for the Exploration Systems Mission Directorate. The study was to assemble lessons NASA has learned from previous programs that ...
      Subject(s) : Additional Categories.Program and Project Management ,

    • NASA-LLIS-6497 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Although education and training is a fundamental component of any EVM implementation, the EVM pilot exercises performed on two NASA projects were constrained by the low priority the projects placed on EVM training of project ...

    • NASA-LLIS-1200 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1990
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On June 4, 1990, in High Bay 1 of the Orbiter Processing Facility (OPF) at the Kennedy Space Center (KSC), the aft bridge of the Payload Bay Bridge and Hoist System was ...
      Subject(s) : Configuration Management , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Launch Process , Mishap Reporting , Parts Materials & Processes , Payloads , Spacecraft ,

    • NACA-TR-597 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1937
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of tests conducted at Stanford University of a 3-foot model propeller at four pitch settings and at 0 degree, 10 degrees, 20 degrees, and 30 degrees yaw. In addition to the usual propeller ...
      Subject(s) : AIRCRAFT , EFFICIENCY , MANEUVERS , MOMENTS , PITCH , PITCHING , PROPELLER , PROPELLERS , ROLLING , TESTS , TUNNEL , VARIABLE , WIND , YAW , YAWING ,

    • NACA-TR-1295 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A simplified procedure is shown for calculating the once-per-revolution oscillating aerodynamic thrust loads on propellers of tractor airplanes at zero yaw. The only flow field information required for the application of ...
      Subject(s) : AERODYNAMIC , AERODYNAMICS , AIRCRAFT , ANALYSIS , ANGLES , BLADES , BODY , CONCENTRATION , GEOMETRY , INTERACTIONAL , INTERACTIONS , LOADS , PREDICTION , PROPELLER , PROPELLERS , ROTOR , STRESS , STRESSES , TECHNIQUES , THRUST , UPWASH , VIBRATORY ,