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

Now showing items 541-560 of 3613

    • NASA-LLIS-0397 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      While on the launch pad, Viking experienced an anomalous power turn-on that resulted in a total discharge of the spacecraft batteries. Failure analysis had not detected that discrete failure ...
      Subject(s) : Ground Operations , Safety & Mission Assurance , Spacecraft ,

    • NASA-TN-D-4928 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Wind tunnel tests of large jet transport aircraft model with external flow jet flap
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANALYSIS , CHARACTERISTICS , CHARTS , CONTROL , DATA , FLAPS , FLOW , GRAPHS , JET , LIFT , MODELS , STABILITY , STATISTICAL , SURFACES , TABLES , TESTS , TRANSPORT , TUNNEL , WIND ,

    • NACA-TN-728 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The National Advisory Committee for Aeronautics is conducting an extrusive investigation to determine the relative merits of various types 32 lift-increasing devices. For use in take-off, a high-lift device ...

    • NASA-LLIS-1220 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Throughout 1A/R and 2A verification closure (stage level), considerable resources were expended gathering element level compliance data to provide closure of the identical ...
      Subject(s) : Administration/Organization , Configuration Management , Independent Verification and Validation , Policy & Planning , Safety & Mission Assurance , Test & Verification ,

    • NASA-LLIS-0874 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On May 16, 1994, an AMDAHL 5995M mainframe computer overheated at approximately 8:20 AM in the Software Production Facility (SPF) in Building 30 at JSC. Physical damage ...
      Subject(s) : Communication Systems , Computers , Configuration Management , Energy , Environment , Facilities , Ground Equipment , Ground Operations , Hardware , Human Resources & Education , Industrial Operations , Information Technology/Systems , Policy & Planning , Spacecraft , Test & Verification , Test Article , Test Facility , Training Equipment ,

    • NASA-LLIS-0845 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use the noise or vibration created by mechanical equipment to determine the actual condition of the equipment. Vibration analysis can be used as a nondestructive method for detecting incipient ...

    • NASA-TN-D-2770 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1965
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Aircraft tire tread wear effect on wet-runway braking.
      Subject(s) : AIRCRAFT TIRE , AIRCRAFT TIRES , BRAKING , MOISTURE CONTENT , RUNWAY CONDITION , RUNWAY CONDITIONS , TREADS , WEAR ,

    • NACA-TR-1117 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Six large 24s-t3 aluminum-alloy-sheet specimens containing various notches or fillets were tested in tension to determine their stress concentration factors in both the elastic and plastic ranges. The elastic stress ...
      Subject(s) : ALUMINUM ALLOYS , ELASTIC PROPERTIES , FILLETS , FLAT PLATES , NOTCHES , PLASTIC PROPERTIES , STRESS ANALYSIS , STRESS CONCENTRATION , STRESS-STRAIN RELATIONSHIPS , TESTS ,

    • NASA-LLIS-0058 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      While an employee was climbing out onto a steel beam to inspect debris nets on the 16th level of the VAB, a beam clamp attached to the employee's belt struck a beam and ...
      Subject(s) : Facilities , Ground Operations , Hardware , Personal Protective Equipment , Safety & Mission Assurance ,

    • NASA-LLIS-1029 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Materials Obsolescence, Parts Obsolescence and Environmental Regulations Issues Cause Disruptions in Stable Shuttle Ground Operations Processes.
      Subject(s) : Aerospace Safety Advisory Panel , Environment , Ground Operations , Hazardous/Toxic Waste/Materials , Parts Materials & Processes , Policy & Planning , Safety & Mission Assurance , Spacecraft ,

    • NACA-TM-1195 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The sound field of a rotating propeller is teated theoretically on the basis of aerodynamic principles. For the lower harmonics, the directional characteristics and the radiated sound energy are determined and are in ...
      Subject(s) : AERODYNAMIC NOISE , MATHEMATICAL MODELS , PROPELLERS , SOUND FIELDS ,

    • NASA-LLIS-0469 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During ground operations at KSC, the first United States Microgravity Laboratory (USML-1) took longer than projected to perform a special module acoustical test. This ...
      Subject(s) : Ground Operations , Policy & Planning , Test & Verification ,

    • NACA-TN-1872 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1949
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      As a solution to the high-lift and lateral-control problems presented at take-off and landing for transport airplanes and other airplanes having large wing loadings, the National Advisory Committee for ...
      Subject(s) : AILERONS , AIRFOILS , CARRIED , CHARACTERISTICS , CONTROL , DRAG , FLAPS , FULL , HIGH , LAL , LATERAL , LIFT , LOW , MOMENTS , MPH , NACA , ORDINATES , PITCHING , PLUG , RETRACTABLE , ROLLING , SLOT , SLOTTED , SPAN , SPOILER , TESTS , TUNNEL , WIND , WING , WINGS , WORK , YAWING ,

    • NASA-LLIS-1447 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Unfamiliar database tools cause delays and use of multiple systems cause additional delay and tax the IT support staff.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0885 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During a system-level ambient functional test of the MPL spacecraft, the software test sequence commanded the gimbaled medium gain antenna through its full range of motion, striking one of ...
      Subject(s) : Flight Equipment , Hardware , Safety & Mission Assurance , Spacecraft , Test & Verification , Test Article , Test Facility ,

    • NACA-TN-2495 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The data presented herein are the results of two wind-tunnel investigations in the Georgia Institute of Technology 9-foot wind tunnel. These tests were conducted under the sponsorship and with the financial ...

    • NASA-CR-224 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1965
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Strength characteristics of anisotropic and laminated composite materials
      Subject(s) : ANISOTROPIC , ANISOTROPY , COMPOSITE , LAMINATED , LAMINATES , MATERIAL , MATERIALS , MECHANICAL , PROPERTIES ,

    • NACA-RM-A52K20 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A semispan model of a high-aspect-ratio swept wing in combination with a fuselage of high fineness ratio has been tested in the Ames 12-foot pressure wind tunnel. The wing was cambered and twisted, had ...

    • NASA-TM-X-1960 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1970
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Jet effects on boattail axial force of conical afterbodies at subsonic and transonic speeds
      Subject(s) : AERODYNAMIC , AFTERBODIES , BLAST , BOATTAILS , BODIES , CONICAL , CONVERGENT , DIVERGENT , EFFECTS , FORCES , JET , MODELS , NOZZLES , SPEED , SUBSONIC , TRANSONIC , TUNNEL , WIND ,

    • NACA-TM-1292 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An experimental investigation is made of the turbulent flow of water in pipes with various degrees of relative roughness. The pipes range in size from 25 to 100 millimeters in diameter and from 1800 to 7050 millimeters in ...