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

Now showing items 301-320 of 3613

    • NASA-TN-D-4529 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1968
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Summary of vertical gusts acceleration data collected for one type twin engine jet airplane during airline operations
      Subject(s) : AIRCRAFT LANDING , AIRLINE OPERATIONS , AIRSPEED , ANGULAR ACCELERATION , COMMERCIAL AIRCRAFT , GUSTS , JET AIRCRAFT , LOADING RATE , TURBOJET ENGINES , TURBOPROP AIRCRAFT , TURBULENCE ,

    • NASA-LLIS-1372 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Two safety incidents occurred during Mars Exploration Rover integration and test, caused by uninsulated, braided traveling ground straps that came into contact with exposed facility power ...
      Subject(s) : bare wire , electrical grounding , Facilities , Flight Equipment , Ground Equipment , Ground Operations , ground wire , Hardware , Industrial Operations , Occupational Health , Packaging Handling Storage , Payloads , Safety & Mission Assurance , short circuit , Test & Verification , Test Article , test error , Test Facility , test-induced damage ,

    • NACA-TN-3696 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The performance of four 90° bends in ducts of constant diameter with ratios of radius of curvature to diameter of 0.75, 1.00, 2.50, and 4.00 was investigated over a range of inlet Mach numbers extending up to the ...

    • NASA-CR-96008 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Aircraft stability and control data
      Subject(s) : AIRCRAFT , CONFIGURATIONS , CONTROL , DATA , FEEDBACK , FUNCTIONS , MACH , NUMBER , STABILITY , STABILIZATION , TABLES , TRANSFER ,

    • NASA-LLIS-1132 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Consistent User Involvement in Software Development Process
      Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Human Factors , Software , Spacecraft ,

    • NACA-TM-604 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1931
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The object of this report was to develop the structural method of sheet metal girders and should for that reason be considered solely from this standpoint. The ensuing methods were based on the assumption of the infinitely ...

    • NASA-LLIS-0073 

      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 SRB platform testing began by loading the platform with 32,000 lbs. of sand. The load was lifted off the ground with a four winch slow speed lift. After clearing the ...
      Subject(s) : Facilities , Ground Equipment , Ground Operations , Hardware , Lifting Devices , Parts Materials & Processes , Test & Verification ,

    • NACA-TR-574 

      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 wind tunnel tests made in the NACA 7 by 10-foot wind tunnel of a Clark Y airfoil with a flap and an inset tab. The pressures were measured on both the upper and lower surfaces at one chord ...
      Subject(s) : AERODYNAMIC , AIRFOILS , COEFFICIENTS , COMPARISON , CONTROL , DISTRIBUTION , EXPERIMENTATION , FLAPS , LIFT , MOMENTS , PITCHING , PRESSURE , SURFACES , TABS , TESTS , THEORIES , TORQUE , TUNNEL , WIND , WING ,

    • NASA-LLIS-0753 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      To ensure that high resolution mirror assemblies for grazing incidence x-ray optical systems meet their requirements, image quality must be predicted during design and verified during fabrication ...

    • NASA-LLIS-1580 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The fully assembled NOAA N-Prime satellite was significantly damaged after sliding off an improperly configured cart while being rotated from a vertical position to a horizontal orientation ...
      Subject(s) : Accident Investigation , Administration/Organization , Configuration Management , Ground Equipment , Ground Operations , Hardware , Hazardous/Toxic Waste/Materials , Human Factors , Human Resources & Education , Lifting Devices , Mishap Reporting , NASA Standards , Policy & Planning , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NACA-TR-669 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The results of an investigation of the effect of support interference on airfoil drag data obtained in the variable-density tunnel are presented. As a result of the support interference, previously published airfoil data ...

    • NACA-ARR-L4I11 REV F 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1944
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Correlation is established between aerodynamic characteristics of control surfaces in two-dimensional and three-dimensional flow. Slope of lift curve was affected little by overhang and balance-nose shape, but increased ...

    • NASA-TM-X-74018 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1977
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract: Wind-tunnel tests were conducted to evaluate the effects on performance of modifying a 13-percent-thick low-speed airfoil. The airfoil contour was altered to reduce the aft upper surface pressure gradient and ...
      Subject(s) : AIRCRAFT , AIRFOIL , AIRFOILS , AVIATION , BOUNDARY , DISTRIBUTION , GENERAL , LAYER , LOW , NUMBER , PRESSURE , PROFILES , REYNOLDS , SEPARATION , SPEED , TUNNELS , WIND ,

    • NASA-LLIS-0891 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Institute a Preventive Maintenance Program based upon current reliability-centered maintenance (RCM) techniques.

    • NASA NPR 7120.10 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      a. This NASA Procedural Requirements (NPR) supports the implementation of the standards aspects of the parent NASA Policy Directive (NPD) 7120.4, NASA Engineering and Program/Project Management ...

    • NACA-TN-3488 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The flow in a rectangular cavity, or slot, in the floor of a wind tunnel is described by the results of pressure and velocity measurements. Pressure distributions on the cavity walls as well as measurements of friction are ...

    • NASA-RP-1255 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1991
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The aim is to coordinate the topics of design, engineering dynamics, and fluid dynamics in order to aid researchers in the area of fluid film lubrication. The lubrication principles that are covered can serve as a basis ...
      Subject(s) : BEARINGS , DESIGN ANALYSIS , ELASTOHYDRODYNAMICS , FLUID FILMS , GEARS , LUBRICATION , STUDENTS , TRIBOLOGY ,

    • NASA-LLIS-0510 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Subject(s) : Research & Development ,

    • NASA-LLIS-1004 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Shortcomings in hardware design details for Alternate High Pressure Fuel Turbo Pump (ATP HPFTP).
      Subject(s) : Aerospace Safety Advisory Panel , Research & Development , Test & Verification ,

    • NASA-LLIS-1358 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Non-flight test heaters located on each of the three non-flight, inert TIRS (Transverse Impulse Rocket System) motors were powered during system thermal test of the Mars ...
      Subject(s) : ATLO , current-limiting , excess current , Flight Equipment , Ground Equipment , Ground Operations , Hardware , heat transfer , integration and test , overheating , overtemperature , overtest , Payloads , Safety & Mission Assurance , Spacecraft , system test , Test & Verification , Test Article , test damage , Test Facility , test-induced failure , thermal-vacuum test , T-V test ,