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

Now showing items 3221-3240 of 3613

    • NASA-LLIS-0425 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Though necessary to support mission objectives, the Voyager Ground Data System and Mission Operations System design accommodated very limited real-time commanding. Correcting this required ...
      Subject(s) : Flight Equipment , Flight Operations , Ground Equipment , Spacecraft ,

    • NACA-TN-1546 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The NACA 16-series airfoils were derived (reference 1) for use at high speeds, particularly for propeller applications. The variations in design camber and thickness ration, covered in reference 1, were ...
      Subject(s) : AIRFOILS , CHAR , MOMENTS , NACA , ORDINATES , PROPELLER , SERIES ,

    • NASA-LLIS-0223 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A counterbalance cable had become disengaged from the upper support beam pulley during assembly operations. This was caused by the work scaffold (used to access the upper ...
      Subject(s) : Ground Equipment , Lifting Devices ,

    • NACA-TN-1113 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      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-5662 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1970
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Ground proximity effects of unswept aspect ratio 10 wing on longitudinal aerodynamic characteristics
      Subject(s) : AERODYNAMIC , AERODYNAMICS , ASPECT , CHARACTERISTICS , DRAG , EFFECT , GROUND , LIFT , LONGITUDINAL , RATIO , STABILITY , TUNNELS , UNSWEPT , WIND , WINGS ,

    • NASA-LLIS-1282 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Project underwent several transitions requiring a refocusing or resizing of project personnel resources. Thus, several employees were trimmed from the work force, ...
      Subject(s) : Administration/Organization , Human Resources & Education , Policy & Planning ,

    • NACA-RM-L51A10 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Considerable interest has been shown in tailless airplanes because of the low drag advantages of such a design. With the advent of the use of sweepback in high-speed airplanes, this interest has heightened ...

    • NASA NPD 7120.4 REV D 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      a. This NPD is applicable to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers. This language applies to the Jet Propulsion ...

    • NASA-TN-D-6435 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Velocity profile control tests of diffuser wall bleed to control combustor inlet airflow distribution.
      Subject(s) : ANNULAR FLOW , BOUNDARY LAYER CONTROL , COMBUSTION CHAMBERS , ENGINE INLETS , GAS TURBINES , INLET FLOW , PRESSURE REDUCTION , VELOCITY DISTRIBUTION ,

    • NASA-LLIS-0086 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The fans are located on the 107 foot level of the rotating service structure (RSS) and controlled from the computer console for ECS in the PTCR. The circuit breakers ...
      Subject(s) : Energy , Facilities , Hardware , Industrial Operations , Safety & Mission Assurance ,

    • NASA-LLIS-1021 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Potential Inadequacy of NASA Agencywide Software Safety Policy Requirements.
      Subject(s) : Aerospace Safety Advisory Panel , Computers , Independent Verification and Validation , Policy & Planning , Research & Development , Safety & Mission Assurance , Software ,

    • NACA-TN-2741 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results are presented of a wind-tunnel investigation to determine influence of the fuselage and tail on static stability and rotary derivatives in roll of a model having 45 degrees sweptback wing and tail surfaces. The ...
      Subject(s) : AIRPLANES , COMBINATIONS , COMPLETE , DAMPING , DERIVATIVES , FLOW , FUSELAGE , STABILITY , STATIC , SUBSONIC , SWEEP , TAIL , WING , WINGS ,

    • NASA-LLIS-0645 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Apply approved requirements and assembly techniques and procedures in the termination of optical fiber cables used in spaceflight applications.

    • NASA-LLIS-1410 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A testbed incident affecting the Mars Exploration Rover (MER) flight computer alerted JPL to the consequences of a failure to consider passivation effects on the rover's lithium primary ...
      Subject(s) : battery chemistry , battery depassivation , battery passivation , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Packaging Handling Storage , Payloads , power/pyro subsystem , RAD6000 , Risk Management/Assessment , Safety & Mission Assurance , Software , Spacecraft , Test & Verification , VME ,

    • NACA-RM-E50D05 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A simple approximate method for predicting the location of detached shook waves ahead of arbitrary plane and axially symmetric bodies in supersonic flow is derived in reference 1. The ...

    • NASA-LLIS-0399 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During arc welding of a Galileo propulsion fuel line, an arc to the spacecraft caused an uncontrolled transient pulse of current that flowed through portions of the spacecraft structure and ...
      Subject(s) : Parts Materials & Processes , Policy & Planning ,

    • NACA-TN-734 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Pressure-distribution tests of an N.A.C.A. 0009 airfoil with a 50-percent-chord plain flap and three plain tabs, having chords 10, 20, and 30 percent of the flap chord, were made in the N.A.C.A. 4- by 6- foot vertical ...

    • NASA-TN-D-4983 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Full scale wind tunnel investigation of lateral and longitudinal stability and control characteristics of light twin engine airplane
      Subject(s) : AIRCRAFT , ANGLE , ATTACK , CENTER , CHARTS , CONTROL , FLAPS , GRAPHS , GRAVITY , LATERAL , LIGHT , LONGITUDINAL , SIDESLIP , STABILITY , SURFACES , TESTS , THRUST , TORQUE , TUNNEL , WIND ,

    • NASA-LLIS-1221 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1981
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A 5-ton mobile A-Frame was being used to lift a 8450 No. piece of research hardware from a lower floor level to the wind tunnel floor through a slot in the wind tunnel ...
      Subject(s) : Ground Equipment , Ground Operations , Hardware , Lifting Devices ,

    • NASA-LLIS-0794 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Perform a piece part thermal analysis that includes all piece parts in support of the part stress analysis. Also include fatigue sensitive elements of the assembly such as interconnects (solder ...