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

Now showing items 21-40 of 3613

    • NASA-LLIS-1096 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On 8/28/97, the last working day before Labor Day weekend, a Contractor's was installing a 3" copper underground compressed air line into a trench approximately 18" wide ...
      Subject(s) : Facilities , Safety & Mission Assurance. ,

    • NASA NPD 9050.6 REV J 

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

    • NASA-LLIS-0740 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The root cause of the MCO mission loss was an error in the "Sm_forces" program output files, which were delivered to the navigation team in English units (pounds-force seconds) instead of the ...
      Subject(s) : Configuration Management , Flight Operations , Risk Management/Assessment , Safety & Mission Assurance , Software , Spacecraft , Test & Verification ,

    • NASA-TP-3637 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The computer codes, AER02S and WINGDES, are now widely used for the analysis and design of airplane lifting surfaces under conditions that tend to induce flow separation. These codes have undergone continued development ...
      Subject(s) : AERODYNAMIC , AERODYNAMICS , ANALYSIS , BOUNDARY , COMPUTER , DRAG , FLOW , LAYER , LIFT , MANUALS , NUMERICAL , OPTIMIZATION , PREDICTIONS , PROGRAMS , SEPARATED , SEPARATION , USER ,

    • NASA-LLIS-1804 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2007
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Preferred Practice for Design & Test. Worst Case Analysis (WCA) is a uniform, disciplined, systematic approach to circuit analysis that determines whether each circuit and ...

    • NACA-TR-534 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1936
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This report presents the results of wind tunnel tests of a wing in combination with each of three sizes of Fowler flap. The purpose of the investigation was to determine the aerodynamic characteristics as affected by flap ...
      Subject(s) : AERODYNAMIC , CHARACTERISTICS , CHORDS , COEFFICIENTS , DIMENSIONS , DOWNWASH , DRAG , FLAPS , GEOMETRY , LIFT , LOADS , LOCATION , MOMENTS , PITCHING , POSITION , RUNS , SIZE , TAKEOFF , WING , WINGS ,

    • NASA-LLIS-1514 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      For the Chandra thermal-plasma environments interactions, the 1992 Program re-baseline removed two instruments, one of which required active thermal control. The orbit for Chandra was changed ...
      Subject(s) : Accident Investigation , Configuration Management , Environment , Extra-Vehicular Activity , Flight Equipment , Hardware , Mishap Reporting , NASA Standards , Parts Materials & Processes , Payloads , Policy & Planning , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Standard , Test & Verification ,

    • NASA-LLIS-6416 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This lessons learned addresses handling, fabrication, integration and test issues identified during the use of Gore SpaceWire cable, part number GSC-05-82730-00, size AWG26. This wire was used in flight hardware intended ...
      Subject(s) : Additional Categories.Communication Systems , Additional Categories.Flight Equipment , Additional Categories.Test & Verification , Additional Categories.Test Article , Manufacturing and Assembly , Safety and Mission Assurance.Product Assurance , Safety and Mission Assurance.Quality , Systems Engineering and Analysis.Engineering design and project processes and standards ,

    • NASA-CR-3813 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1984
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A computer program entitled PAIN (Propeller Aircraft Interior Noise) has been developed to permit calculation of the sound levels in the cabin of a propeller-driven airplane. The fuselage is modeled as a cylinder with a ...
      Subject(s) : ACOUSTIC PROPERTIES , AIRCRAFT COMPARTMENTS , AIRCRAFT NOISE , MECHANICAL PROPERTIES , MODELS , NOISE MEASUREMENT , NOISE PREDICTION (AIRCRAFT) , PROPELLERS , SOUND WAVES , USER MANUALS (COMPUTER PROGRAMS) ,

    • NACA-RM-L7L22 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-0498 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A JSC forklift operator struck and broke a 3/4 natural gas supply line servicing a suspended forced air gas heater in Building 422. The operator was moving a material ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilities , Industrial Operations , Safety & Mission Assurance ,

    • NASA-TN-D-8206 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1976
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results of drag cleanup tests conducted in the Langley full-scale tunnel during the period from 1935 to 1945 are summarized for potential application to current propeller-driven general aviation airplanes. Data from tests ...

    • NASA-LLIS-0270 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Voyager flight operations strategy and system design was based upon a philosophy of very limited real-time ground commanding, assuming the vast majority of activity could ...
      Subject(s) : Communication Systems , Flight Operations ,

    • NASA-LLIS-1331 

      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 Physics of Colloids in Space (PCS) experiment was launched on ISS Flight 6A in April 2001, was activated in EXPRESS Rack 2 on May 31, 2001, and was successfully operated ...
      Subject(s) : Computers , Flight Equipment , Flight Operations , Hardware , Payloads , Safety & Mission Assurance , Software ,

    • NACA-RM-L55E23 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The analysis of the downwash behind wings given in references 1 to 3 has provided a good basis from which the horizontal-tail contribution to the static longitudinal stability can be estimated for wing-body ...

    • NACA-TN-2412 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The tail configurations considered in this paper are sketched in figure 1. The orientation of the tail with respect to a body system of coordinate axes used in the analysis is shown in figure 2(a). Figure 2(b) shows a ...

    • NACA-W-87 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Transition of the boundary layer from the laminar to the turbulent regime was investigated on the concave side of a plate with a radius of curvature of 3.5 feet. The critical Reynolds number was found to be considerably ...

    • NACA-TN-2200 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An attempt is made to develop a second approximation to the solution of problems of supersonic flow which can be solved by existing first-order theory. The method of attack adopted is an iteration process using the linearized ...

    • NASA-TN-D-1522 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1962
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Variable-amplitude fatigue tests - effect of load.
      Subject(s) : ALUMINUM ALLOY , ALUMINUM ALLOYS , FATIGUE TEST , FATIGUE TESTS , LOADING , LOADS (FORCES) , MATERIAL TESTING , MATERIALS TESTS ,

    • NASA-LLIS-0338 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Rehabilitation of the Little Joe/Mercury capsule display for the Hampton Aerospace Park revealed an insidious problem with possible serious consequences for personal and ...
      Subject(s) : Environment , Hardware , Parts Materials & Processes , Safety & Mission Assurance ,