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

Now showing items 1401-1420 of 3613

    • NASA-LLIS-0458 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During an engineering test, organizations external to the test organization were performing maintenance activities in the test vicinity. Welding was being performed in a ...
      Subject(s) : Facilities , Fire Protection , Industrial Operations , Safety & Mission Assurance ,

    • NACA-TN-422 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1932
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Tests were made on a model wing with three different sized split trailing-edged flaps, in the NACA 7 by 10 foot wind tunnel. The flaps were formed of the lower rear portion of the wing and were rotated downward about axes ...

    • NASA-LLIS-1204 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During the Flight 2A (STS-88) mission, the crew was required to install rack pivot pins on the starboard re-supply/stowage rack (RSR). During the operation, the mid-bay ...
      Subject(s) : Configuration Management , Flight Operations , Ground Operations , Human Factors , Human Resources & Education , Industrial Operations , Launch Process , Parts Materials & Processes , Policy & Planning , Range Operations , Test & Verification ,

    • NASA NPR 3713.2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-CR-3176 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1979
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A coannular jet was equated with a single stream equivalent jet with the same mass flow, energy, and thrust. The acoustic characteristics of the coannular jet were then related to the acoustic characteristics of the single ...
      Subject(s) : ACOUSTIC ATTENUATION , EXHAUST NOZZLES , GRAPHS (CHARTS) , JET AIRCRAFT NOISE , NOISE REDUCTION , PERFORMANCE PREDICTION , STROUHAL NUMBER , VELOCITY DISTRIBUTION , WIND TUNNEL TESTS ,

    • NASA-LLIS-0826 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      This practice is for use by designers of battery-operated equipment flown on space vehicles. It provides such people with information on the design of battery-operated equipment to result in ...

    • NASA-LLIS-0036 

      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 T-0 vent support assemblies are mounted on the orbiter T-0 Interface to support controlled venting of PRSD tanks after landing. In the event of regulator diaphragm ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilities , Flight Equipment , Ground Equipment , Ground Operations , Hardware , Hazardous/Toxic Waste/Materials , Launch Vehicle , Parts Materials & Processes , Pressure Vessel ,

    • NACA-TN-2566 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      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-0972 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In the 1995-1996 timeframe the Office of Safety and Mission Assurance (OSMA) began development of a distance learning capability under the umbrella of the Professional ...
      Subject(s) : Information Technology/Systems , Policy & Planning , Training Equipment ,

    • NACA-TR-1150 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report treats the effect of wind-tunnel walls on the oscillating two-dimensional air forces in a compressible medium. The walls are simulated by the usual method of placing images at appropriate distances above and ...
      Subject(s) : ACOUSTIC , AIRFOILS , BOUNDARY , COMPUTATIONAL , DYNAMICS , EQUATIONS , FLOW , FLUID , FLUTTER , INTERFERENCE , PERTURBATION , PROBLEMS , PROPERTIES , TESTS , TUNNEL , VALUE , WALL , WALLS , WAVE , WIND ,

    • NASA-LLIS-0584 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Following Mars encounter, an unintended repetition of MGS's Aerobraking Maneuver #5 occurred after the intentional burn. Installation of a new version of the ground data system software one ...
      Subject(s) : Configuration Management , Software ,

    • NACA-TN-1468 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The recent trend toward the use of low-aspect-ratio wings for high-speed flight requires that the low-speed stability and control characteristics of such configurations be determined. Some work has been ...
      Subject(s) : AIRFOILS , ASPECT , DAMPING , DELTA , DIHEDRAL , DIRECTIONAL , FREE , LMAL , LONGITUDINAL , NACA , RATIO , RECTANGULAR , ROLL , SMALL , SPINNING , STABILITY , STATIC , SWEPTBACK , TAPERED , TESTS , TUNNEL , WIND , WINGS , WORK ,

    • NASA-LLIS-1405 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The NASA Engineering and Safety Center (NESC) responds to requests from programs/projects to independently analyze complex or difficult problems encompassing a wide range of technical issues ...
      Subject(s) : Administration/Organization , Independent Verification and Validation , Policy & Planning , Program and Project Management , Risk Management/Assessment ,

    • NASA-TM-X-35 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Vertical tail size and ventral fin effects on lateral and directional stability of VTOL AIRCRAFT at transonic speeds
      Subject(s) : AIRCRAFT , AIRSPEED , ANGLE , ASSEMBLIES , ATTACK , DERIVATIVES , DIRECTIONAL , DYNAMICS , FINS , FLUID , LATERAL , SPEED , STABILITY , STABILIZERS , STATIC , TAIL , TAKEOFF , TRANSONIC , VERTICAL , VTOL ,

    • NASA-LLIS-3099 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A simple tool consisting of a tapered bolt, a nut, and two close-tolerance "hat" bushings can be used to align two holes, without the use of undesired force.
      Subject(s) : Ground support systems , Spacecraft and Spacecraft Instruments ,

    • NACA-RM-L57F07 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Recent developments have shown that stability derivatives obtained from oscillation tests can be considerably different from those obtained by steady-flow tests for some angle-of-attack and mach number ...

    • NASA-LLIS-0158 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Platforms 11A-1 and 11A-6 were retracted to support payload bay door opening. The platforms were not able to be extended for personnel access in support of aft propulsion ...
      Subject(s) : Configuration Management , Facilities , Ground Equipment , Ground Operations ,

    • NASA-LLIS-1181 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A 55-gallon drum of paint wastes subsequently ruptured after being overpacked into an 85-gallon salvage drum due to leakage from the original drum. Pressure had built up ...
      Subject(s) : Disposal , Energetic Materials - Explosive/Propellant/Pyrotechnic , Hazardous/Toxic Waste/Materials , Logistics , Packaging Handling Storage , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance , Transportation ,

    • NASA-LLIS-0558 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Use of multiple tanks for a given propellant can introduce the potential for propellant transfer between tanks and cause unexpected shifts in spacecraft inertial properties and/or reduction ...
      Subject(s) : Bipropellant Propulsion Systems ,

    • NASA-LLIS-0801 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use advanced computed X-ray tomography as a precision method of materials characterization and defect location to ensure high reliability of aerospace hardware and conformance to design ...