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

Now showing items 2041-2060 of 3613

    • NASA-LLIS-0981 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Most tantalum capacitors are sensitive to the polarity of the applied voltage. Incorrect installation and/or improper circuit application that subjects the capacitors to ...
      Subject(s) : Aircraft , Communication Systems , Computers , Flight Equipment , Ground Equipment , Hardware , Packaging Handling Storage , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance ,

    • NASA-LLIS-6436 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: As part of the International Space Station (ISS) Heat Rejection System (HRS) radiator face sheet failure investigation team, review of the radiator panel design indicated that the radiator panel acted as an enclosed, ...

    • NASA-LLIS-0798 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Unexpected interference in receivers can be avoided in a complex system of transmitters and receivers by performing an intermodulation analysis to identify and solve potential problems. Various ...

    • NASA-LLIS-1613 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Not having high fidelity hardware simulations and procedures to train the crew will result in deficient human factors and in-operable equipment on-orbit.
      Subject(s) : Human Factors , Risk Management/Assessment ,

    • NACA-TR-827 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Design charts are developed for 24s-t aluminum-alloy flat compression panels with longitudinal z-section stiffeners. These charts make possible the design of the lightest panels of this type for a wide range of design ...
      Subject(s) : ALLOYS , ALUMINUM , BUCKLING , CHARTS , COMPRESSION , COMPRESSIVE , DESIGN , FLAT , LOADS , PANELS , PLATES , REINFORCED , SKIN , STIFFENING , STRENGTH , STRESSED , STRUCTURES ,

    • NASA-LLIS-0923 

      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 10 October 2000, during the STS-92 launch countdown T-3 hour Final Inspection, a 4-inch long and 3/16-inch diameter "T-handle" Quick Release Pin (QRP) and tether were ...
      Subject(s) : Aircraft , Configuration Management , Facilities , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Human Factors , Industrial Operations , Launch Process , Launch Vehicle , Lifting Devices , Logistics , Packaging Handling Storage , Parts Materials & Processes , Payloads , Research & Development , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test Facility , Training Equipment ,

    • NACA-TN-3843 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was made in the Langley stability tunnel to determine the effects on the steady-state yawing derivatives of the vertical position of the wing for a 60° delta-wing model having ratios of fuselage ...

    • NASA-TM-X-72695 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1975
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An experimental investigation was performed to evaluate the effectiveness of nose gear chine tires in eliminating or minimizing the engine spray ingestion problem encountered on several occasions by the Merlin 4, a twin-engine ...
      Subject(s) : AIRCRAFT HAZARDS , AIRCRAFT TIRES , AIRFIELD SURFACE MOVEMENTS , LANDING GEAR , NOSE WHEELS , OPERATIONS RESEARCH , RUNWAY CONDITIONS , SPRAY INGESTION , WATER ,

    • NASA-LLIS-0520 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An investment casting process has been developed to produce net-shape, superconducting ceramics. In this work, a factorial experiment was performed to determine the critical ...
      Subject(s) : Parts Materials & Processes , Research & Development ,

    • NASA-LLIS-1375 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The company's failure to implement and enforce their company safety program, as defined in their Safety & Health plan submitted to NASA, resulted in a lax safety culture. This lax safety ...
      Subject(s) : Configuration Management , Energy , External Relations , Facilities , Human Factors , Human Resources & Education , Industrial Operations , Personal Protective Equipment , Policy & Planning , Procurement Small Business & Industrial Relations , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification ,

    • NACA-TN-4018 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report deals with the problem of the influence of free-stream turbulence on the transfer of heat from a cylinder in forced convection at very low Mach numbers but at large Reynolds numbers. In particular, an attempt ...

    • NASA-LLIS-0133 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Return and supply flexhoses are connected between the ground coolant boom and the LH2 check-out umbilical carrier plate. Because the hoses are too long for such a short ...
      Subject(s) : Ground Equipment , Ground Operations , Hardware ,

    • NASA-LLIS-1137 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Space Shuttle Program/Work Documentation/Unincorporated Changes.
      Subject(s) : Aerospace Safety Advisory Panel , Configuration Management , Ground Equipment , Ground Operations , Parts Materials & Processes , Spacecraft , Test Facility ,

    • NASA-TN-D-995 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1962
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Aerodynamic loads on an isolated shrouded- propeller configuration for various angles of attack.
      Subject(s) : AERODYNAMIC LOAD , AERODYNAMIC LOADS , ANGLE OF ATTACK , LOADING , PROPELLERS , SHROUDED PROPELLER , SHROUDED PROPELLERS , SHROUDS ,

    • NACA-TR-1386 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Experimental drag measurements at zero angle of attack for various theoretical minimum drag nose shapes, hemispherically blunted cones, and other more common profiles of fineness ratios of about 3 are compared with theoretical ...
      Subject(s) : AERODYNAMIC , AXISYMMETRIC , BLUNT , BODIES , COMPUTATIONAL , CONES , DISTRIBUTION , DRAG , DYNAMICS , FINENESS , FLUID , FOREBODIES , FRICTION , MACH , MODELS , NOSES , NUMBER , PARABOLIC , PRESSURE , RATIO , REYNOLDS , SKIN , TESTS , TUNNEL , WAVE , WIND ,

    • NASA-LLIS-0756 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Sneak circuit analysis should be used in safety critical systems to identify latent paths which cause the occurrence of unwanted functions or inhibit desired functions, assuming all components ...

    • NASA-LLIS-0335 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      NASA Langley personnel successfully completed for end users a series of shakedown tests for a new dynamic stability instrumentation system. The system replaces a 25-year-old ...
      Subject(s) : Test Facility ,

    • NASA-LLIS-1627 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      On 4 April 2005, during a routine double engine removal operation on a F-15B, tail number 836, at NASA Dryden, the aircraft center of gravity shifted forward, compressing the nose gear strut, ...
      Subject(s) : Accident Investigation , Aerospace Safety Advisory Panel , Aircraft , Ground Operations , Mishap Reporting ,

    • NACA-TR-680 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of an investigation conducted in the NACA 20-foot tunnel to determine the slipstream drag, the body interference, and the cooling characteristics of nacelle-propeller diameter. Four combinations ...
      Subject(s) : AERODYNAMIC , AIR , AIRCRAFT , COMBUSTION , CONFIGURATIONS , COOLING , COWLINGS , DIAMETERS , DRAG , DROP , EFFICIENCY , ENGINES , INTERFERENCE , INTERNAL , NACELLES , PRESSURE , PROPELLER , PROPELLERS , PROPULSIVE , RATIOS , SLIPSTREAMS , TESTS , TUNNEL , WIND ,

    • NACA-ARR-3F29 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1943
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Force-test mea8nrenkata in two-dimensional flow have been made in the N.ACA 4- by 6-foot vertical tunnel to determine the aerodynamic characteristics of an NACA 0009 airfoil equipped with a double plain flap that consisted ...