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

Now showing items 2481-2500 of 3613

    • NACA-TN-1393 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Over a period of several years, the NACA has conducted research on the prevention of ice formations on aircraft through the use of heat. Satisfactory wing, tail-surface, and windshield thermal ice prevention ...

    • NACA-RM-A54J19 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      R. T. Jones has expressed the theory of wing-body wave drag at supersonic speeds in a form which illustrates the dependence of the drag upon the longitudinal distributions of the cross-sectional ...

    • NASA-LLIS-6116 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The basic S70-0508 Ground Coolant Unit design (heat load capacity) was oversized and could not handle the wide range of heat loads required when the Space Shuttle Orbiter is powered up. Electrical modifications ...
      Subject(s) : Additional Categories.Ground Equipment , Additional Categories.Ground Operations , Engineering Design (Phase C/D).Environmental Control and Life Support Systems , Engineering Design (Phase C/D).Launch Systems , Mission Operations and Ground Support Systems.Ground support systems , Mission Operations and Ground Support Systems.Launch support systems , Systems Engineering and Analysis.Engineering design and project processes and standards ,

    • NASA-LLIS-0393 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A failure in the ATMOS instrument laser was attributed to a pressure loss caused by use of machine screws of excessive length in a modified housing. Sealed flight equipment requiring container ...
      Subject(s) : Configuration Management , Leak Testing , Test & Verification ,

    • NACA-TN-703 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Four N.A.C.A. 23012 wings were tested at several angles of yaw in the N.A.C.A. 7- by 10-foot wind tunnel. All the wings have rounded tips and, in plan form, one is rectangular and the others are tapered 3:1 with various ...

    • NASA-LLIS-0197 

      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 practice of cannibalization has almost become a standard procedure during orbiter processing due to insufficient spare parts. This causes a significant increase in the ...
      Subject(s) : Ground Operations , Logistics ,

    • NASA-LLIS-1216 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The initial runs of an On-Orbit Constraint Test (OOCT) at KSC ran into a number of anomalies. These initial runs were the first attempts (or "pathfinder" event) in a series ...
      Subject(s) : Administration/Organization , Configuration Management , Disposal , External Relations , Extra-Vehicular Activity , Facilities , Flight Equipment , Flight Operations , Ground Equipment , Ground Operations , Hardware , Independent Verification and Validation , Industrial Operations , Information Technology/Systems , Lifting Devices , Parts Materials & Processes , Payloads , Policy & Planning , Procurement Small Business & Industrial Relations , Range Operations , Risk Management/Assessment , Safety & Mission Assurance , Software , Spacecraft , Test & Verification , Test Article , Test Facility ,

    • NACA-TN-1422 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of an investigation conducted to determine some of the effects of airfoil section and washout on the experimental and calculated characteristics of 10-percent-thick wings. Three wings of aspect ...

    • NASA NPR 1600.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: a. This NASA Procedural Requirements (NPR) establishes Agency-wide security program implementation requirements set forth in NASA Security Policy Directive (NPD) 1600.2, as amended.
      b. This NPR prescribes NASA Security ...

    • NASA-LLIS-0841 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Estimate or predict the future availability of a system, function, or unit where availability is defined as the probability that the system, function, or unit will be in an operable state at ...

    • NASA-LLIS-0053 

      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 primary cause of the Magellan mishap was the inadvertent mating of at least two pins of the spacecraft harness connector P2 to connector J3 of battery 1. The mismate ...
      Subject(s) : Energy , Ground Operations , Hardware , Packaging Handling Storage , Spacecraft ,

    • NACA-TR-748 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of normal-pressure tests made of 56 rectangular plates with clamped edges and of 5 plates with freely supported edges. Pressure was applied and the center deflection and the permanent set at the ...
      Subject(s) : AIRCRAFT LANDING , ALUMINUM ALLOYS , CLAMPS , COMPRESSIVE STRENGTH , DEFLECTION , EDGES , ELASTIC PROPERTIES , FLAT PLATES , IMPACT LOADS , PRESSURE EFFECTS , RECTANGULAR PLATES , STAINLESS STEELS , STRESS-STRAIN RELATIONSHIPS , SUPPORTS , TENSILE PROPERTIES , WATER TAKEOFF AND LANDING AIRCRAFT ,

    • NASA-LLIS-0578 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      After Cassini was mated to the launch vehicle, excessively high velocity cooling airflow blew insulation particles into the Descent Module. The responsibility for supplying cooling to the ...
      Subject(s) : Administration/Organization , Configuration Management , Requirements Documentation , Test & Launch Operations , Test & Verification ,

    • NACA-RM-A55D11 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The adverse effects of wing-tip stall on the low-speed stability and drag characteristics of swept-wing airplanes are widely recognized. To delay wing-tip stall to higher lift coefficients, the use of large ...

    • NASA-LLIS-1442 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Department of Justice played a critical role in archiving accident investigation data, interview statements, and interface with the National Archives and Records Administration; however, ...
      Subject(s) : Accident Investigation , Administration/Organization , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0880 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      During the design of new or modifications to existing systems requiring motor speed control, consider the use of alternating current (AC) variable frequency drive systems for motor control.

    • NACA-TN-2399 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The analysis of Technical Note 2250, 1950, is extended to include the effects of flow rotation. It is found that the theoretical pressure distributions over drive cylinders can be related by the hypersonic similarity rule ...

    • NASA-TM-X-2917 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was conducted in the Langley 16-foot transonic tunnel to determine the performance of seven inlets having NACA 1-series contours and one inlet having an elliptical contour over a range of mass-flow ratios ...
      Subject(s) : AERODYNAMIC , AIR , CHARACTERISTICS , CONFIGURATIONS , ENGINE , FLOW , GEOMETRY , INLETS , MEASUREMENT , PERFORMANCE , PRESSURE , SPEED , TESTS , TRANSONIC , TUNNEL , WIND ,

    • NASA NPR 9210.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      This NASA Procedural Requirements (NPR) provides the financial management requirements for Cash and Fund Balance with Treasury.
      Applicability
      This NPR is applicable to ...

    • NACA-RM-A52D22 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The use of camber and twist as a means of improving the aerodynamic characteristics of 8wept-back wings with moderately thin airfoil sections has received considerable attention. While some force and ...