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

Now showing items 1981-2000 of 3613

    • NASA-LLIS-0421 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Voyager II Science Boom failed to indicate, by microswitch, that it had deployed completely. The design of deployment mechanisms should consider susceptibility to jamming by foreign ...
      Subject(s) : Hardware , Spacecraft , Test & Verification ,

    • NACA-TN-2151 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A description is given of a linear-theory method for the estimation of the damping in roll of supersonic-leading-edge wings mounted on cylindrical bodies. The error resulting from an approximation essential to the method ...
      Subject(s) : BODIES , COMBINATIONS , DAMPING , DELTA , FLOW , FUSELAGE , INTERFERENCE , LINEAR , RECTANGULAR , ROLL , SUPERSONIC , THEORIES , WING , WINGS ,

    • NASA-LLIS-0217 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During propellant loading operations for the Galileo retro propulsion module prior to launch, an oxidizer loading flex line developed a small leak. The leak was caused by an electrostatic ...
      Subject(s) : ESD , Hazardous/Toxic Waste/Materials , Launch Process , Parts Materials & Processes ,

    • NACA-TN-1049 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1946
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In an effort to provide satisfactory methods for predicting control-surface characteristics, the NACA has undertaken a program of summarizing, analyzing, and correlating the results of various experimental ...

    • NASA-TN-D-6573 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The aerodynamic characteristics of a full scale executive type jet transport aircraft with a T-tail were investigated in a 40 x 80 ft (12.2 by 24.4 meter) wind tunnel (subsonic). Static, longitudinal, and lateral stability, ...
      Subject(s) : AIRCRAFT , BOUNDARY , CONTROL , JET , LATERAL , LAYER , LONGITUDINAL , MODELS , SCALE , SEPARATION , SPEED , STABILITY , STATIC , SUBSONIC , SURFACES , TAIL , TESTS , TRANSPORT , TUNNEL , WIND ,

    • NASA NPR 1800.1 REV C W/CHG 2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      a. This NASA Procedural Requirement (NPR) describes occupational health program procedures necessary to effectively carry out the mission of the Office of the Chief Health and Medical Officer ...

    • NASA-LLIS-1241 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Orbiter wiring inspections have uncovered redundant wiring in the same wire bundles.
      Subject(s) : Aerospace Safety Advisory Panel , Configuration Management , Hardware , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft ,

    • NASA-LLIS-2336 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A mechanical interference, attributed to inadequate processes and procedures for instrument design, verification, and validation, prevented the full opening of a set of instrument doors ...
      Subject(s) : Configuration Change Control , Configuration Management , Flight Equipment , Hardware , Mishap Reporting , Payloads , Quality , Robotics , Spacecraft , Spacecraft and Spacecraft Instruments , Test & Verification , Test Article ,

    • NACA-RM-L50F20 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In order to increase the range of highly sweptback-wing aircraft, it becomes desirable to use wings of large aspect ratio. Reference 1 points out, however, that highly swept wings of large ...

    • NACA-WR-L-704 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCITON
      At the request of the Material Command, Army air Forces, tests were made in the Langley two-dimensional tunnel of four models submitted by the Glenn L, Martin Company as intermediate sections of the wing ...
      Subject(s) : AILERONS , AIRFOILS , BALANCED , BRISTOL , CHAR , DEFLECTION , DIM , DISTRIBUTION , DRAG , FLAPS , FRISE , HINGE , LOW , MARTIN , MOMENTS , NACA , PRESSURE , SLOTTED , TESTS , TUNNEL , WIND , WING , WINGS ,

    • NASA-TN-D-5467 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Discharge nozzle coefficients for thick plate orifices with approach flow perpendicular and inclined to orifice axis.
      Subject(s) : APPROACH , COEFFICIENTS , DIMENSIONS , DISCHARGE COEFFICIENT , FLOW DISTRIBUTION , NOZZLE FLOW , ORIFICE FLOW , PRESSURE DISTRIBUTION , THICK WALLS ,

    • NASA-LLIS-0080 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During detensioning operations of a holddown post, while pressure of approximately 8K to 10K lbs was being applied, a loud "bang" was heard. Pressure on the tensioner fell ...
      Subject(s) : Hardware , Launch Process , Launch Vehicle , Packaging Handling Storage , Parts Materials & Processes ,

    • NACA-TN-868 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report deals principally with the results of tension tests on sixteen metals and alloys, most of which are employed extensively in aircraft construction. The tension characteristics are discussed for static conditions ...

    • NASA-LLIS-1012 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      NASA Budget Situation Impacts on Shuttle Logistics Capabilities.
      Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Ground Operations , Logistics ,

    • NASA-TR-3082 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1979
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The concept of rotary-wing aircraft in general is defined. The energy effectiveness of helicopters is compared with that of other static thrust generators in hover, as well as with various air and ground vehicles in forward ...
      Subject(s) : AIRFOIL PROFILES , COMPRESSIBILITY , HELICOPTERS , HOVERING , MOMENTUM THEORY , POTENTIAL THEORY , ROTARY WINGS , ROTOR AERODYNAMICS , ROTOR SPEED , UNSTEADY FLOW , VISCOSITY , VORTICES ,

    • NACA-TN-2753 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The effects of Mach number and Reynolds number on the maximum lift coefficient of a wing of NACA 64-210 airfoil sections are presented. The wing was tested through the speed range of the Langley 19-foot pressure tunnel at ...
      Subject(s) : COMPLETE , CONDITIONS , EDGE , EFFECTS , FLAPS , FLOW , MACH , NUMBER , REYNOLDS , SUBSONIC , SURFACE , TRAILING , VISCOUS , WINGS ,

    • NASA-LLIS-0639 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Shortly after the successful demonstration of solar electric propulsion (SEP) aboard Deep Space 1 began, the xenon ion engine shut down unexpectedly-- likely due to a "grid short." Although ...
      Subject(s) : contamination , debris , fault protection , Flight Operations , Mission Operations , New Millennium , NSTAR , Risk Management/Assessment , short circuit , Spacecraft ,

    • NASA-LLIS-1383 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A mishap occurred in a large (18' X 20') autoclave resulting in damage to government property of approximately $23K. The mishap was likely the result of a small amount of accumulated debris ...
      Subject(s) : Mishap Reporting ,

    • NACA-RM-A54J20 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      As part of the continuing investigation of low-aspect-ratio wings by the NACA, the effects of taper ratio on the aerodynamic characteristics of swept wings of aspect ratio 3 at subsonic and supersonic ...

    • NASA-LLIS-6196 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Shaker system control software generates a self check immediately prior to a test at a signal level that is normally considered to be of insignificant strength compared to test levels. During a dynamic test of the Juno ...
      Subject(s) : Additional Categories.Flight Equipment , Additional Categories.Ground Equipment , Additional Categories.Hardware , Additional Categories.Payloads , Additional Categories.Spacecraft , Additional Categories.Test & Verification , Additional Categories.Test Article , Additional Categories.Test Facility , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Safety and Mission Assurance.Advanced planning of safety systems ,