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

Now showing items 2101-2120 of 3613

    • NASA-TP-2005 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1982
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A wind tunnel investigation of the interference effects of axisymmetric nozzle air plumes, a solid plume, and normal air jet plumes on the afterbody pressure distributions and base pressures of a cylindrical afterbody model ...
      Subject(s) : AERODYNAMIC , AFTERBODIES , AIR , AXISYMMETRIC , BODIES , BOUNDARY , CHARACTERISTICS , COEFFICIENTS , CONTROL , DATA , DISTRIBUTION , EXHAUST , FLOW , JETS , LAYER , MACH , MISSILE , NOZZLE , NOZZLES , NUMBER , PLUMES , PRESSURE , REDUCTION , REVOLUTION , SEPARATION , TESTS , THRUST , TUNNEL , WIND ,

    • NASA NPR 7120.5 REV E W/CHG 1-10 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This document establishes the requirements by which NASA formulates and implements space flight programs and projects, consistent with the governance model contained in NASA Policy Directive ...

    • NACA-TN-2169 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A wind-tunnel investigation was made at low speed to determine the aerodynamic characteristics of a 45° sweptback untapered semispan wing of NACA 64A010 airfoil section normal to the leading edge and aspect ratio of ...
      Subject(s) : AIRFOILS , ASPECT , CHARACTERISTICS , FEET , FLAPS , HINGE , MOMENTS , MPH , NACA , PITCHING , RATIO , SMALL , SWEPTBACK , TESTS , TUNNEL , WIND , WING , WINGS ,

    • NASA NPR 1080.1 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      In conjunction with NASA Procedural Requirements (NPR) 7120.8, NASA Research and Technology Program and Project Management Requirements, this document establishes the requirements by ...

    • NASA-LLIS-0484 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      To reduce costs, the Mars Observer propulsion and other subsystems followed design practices more common to earth-orbiting satellites than to planetary missions. Consider contractor experience ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Environment , Safety & Mission Assurance , Spacecraft ,

    • NASA-LLIS-0256 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A Nalge desiccator, National stock number 6640-00-569-7964, vacuum, plastic, 250 MM, violently imploded after being evacuated about 1/2 hour before the incident. The force ...
      Subject(s) : Hazardous/Toxic Waste/Materials , Packaging Handling Storage ,

    • NASA-TN-D-8236 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1976
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The wing was tested without fuselage or empennage and was fitted with approximately three-quarter span Fowler flaps and half span spoilers. The spoilers were hinged at the 70 percent chord point and vented when the flaps ...
      Subject(s) : AIRCRAFT , ANGLE , ATTACK , AVIATION , BOUNDARIES , CHARTS , CONTROL , FLAPS , GENERAL , GRAPHS , JET , LATERAL , SPOILERS , STABILITY , SURFACES , TESTS , TUNNEL , WIND ,

    • NASA-LLIS-1279 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During the Project's technology transfer efforts, difficulties arose because the NASA software distribution policies and export control approval processes changed. The ...
      Subject(s) : Administration/Organization ,

    • NACA-RM-L53I24 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-0323 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Coolant leak developed on the Skylab which was attributed to B-nuts.
      Subject(s) : Flight Equipment , Hardware , Parts Materials & Processes ,

    • NASA-LLIS-0100 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Two employees received caustic electrolyte exposure of hands during removal of two batteries from containers for installation in the ET. Installation was to support OMI ...
      Subject(s) : Ground Operations , Hazardous/Toxic Waste/Materials , Occupational Health , Parts Materials & Processes , Test & Verification ,

    • NASA NPD 1371.1 REV G W/CHG 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Applicability
      This Directive is applicable to NASA Headquarters and NASA Centers, including Component Facilities.

    • NASA-LLIS-1057 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Effects of Radiation Exposure on ISS Expedition Crews
      Subject(s) : Aerospace Safety Advisory Panel , Flight Operations , Medical , Occupational Health , Risk Management/Assessment , Safety & Mission Assurance ,

    • NASA-LLIS-0671 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      In those cases where spacecraft science requirements or attitude control systems impose constraints on the magnetic characteristics of components and the use of ferromagnetic material cannot ...

    • NACA-RM-A6K15 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Theory indicates and experiment has shown that the prime aerodynamic effete of wing sweep is to reduce by the cosine of the angle of sweep the effective flight velocity experienced the airpoil sections of ...

    • NASA NPR 3713.1 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      This NASA Procedural Requirements (NPR) provides instructions for the implementation of NASA Policy Directive (NPD) 3713.8A, "Provision of Reasonable Accommodation for Individuals with ...

    • NASA/SP-2009-569 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-1712 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Mars Exploration Rover designers responded to a high level of uncertainty regarding Martian winds by providing a set of small, sideways-pointing rockets and adding a capability to directly ...
      Subject(s) : Additional Categories.Environment , Additional Categories.Flight Equipment , Additional Categories.Flight Operations , Additional Categories.Hardware , Additional Categories.Payloads , Additional Categories.Program and Project Management , Additional Categories.Risk Management/Assessment , Additional Categories.Spacecraft ,

    • NASA-LLIS-1483 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Shortly after the commencement of science activities on Mars, an MER rover lost the ability to execute any task that requested memory from the flight computer. The cause was incorrect ...
      Subject(s) : autonomous shutdown , avionics , Computers , file system corruption , Flight Equipment , Flight Operations , flight software architecture , flight software design , flight software requirements , Ground Operations , Hardware , Independent Verification and Validation , Information Technology/Systems , Payloads , repetitive resets , Risk Management/Assessment , Safety & Mission Assurance , shutdown failure , Software , Spacecraft , system memory space , system reboot , Test & Verification ,

    • NACA-RM-A8A20 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The early development of NACA submerged air inlets was conducted with the submerged inlets installed in the flat wall of a wind tunnel (references 1 and 2 ). The results of these tests indicated that it ...