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

Now showing items 3141-3160 of 3613

    • NACA-TR-762 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1943
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Charts showing the variation in dynamic stability with the rudder hinge-moment characteristics are presented. A stabilizing rudder floating tendency combined with a high degree of aerodynamic balance is shown to lead to ...

    • NACA-TN-1854 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1949
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: SUMMARY
      A method which has previously been presented for the estimation of the low-speed stability derivatives of swept wings is modified "by means of the Prandtl-Glauert rule to yield approximate corrections for the ...

    • NASA-LLIS-0911 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Work Breakdown Structure (WBS) in the Request for Proposal (RFP) will become the basis for the Contractor's Project organizational structure and job order numbers. If ...
      Subject(s) : Software ,

    • NASA-LLIS-4936 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Lack of a consistent, comprehensive, analysis-based sparing methodology wastes resources, increases costs, impacts schedule and results in unnecessary procurements.

    • NASA NPD 7410.5 REV E 

      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 Center. This language applies to JPL, other contractors, ...

    • NACA-TN-3735 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Twenty-five ring-stiffened circular cylinders were loaded to failure in bending. The results are presented in the form of design curves which are applicable to cylinders with heavy rings that fail as a result of local buckling.
      Subject(s) : AIRCRAFT , ALLOYS , ALUMINUM , ANALYSIS , BENDING , CIRCULAR , CRITICAL , CURVES , CYLINDERS , DESIGN , FAILURE , FORCES , FUSELAGES , LOADING , LOADS , MOMENTS , RADII , RATIO , REINFORCED , REINFORCEMENT , RINGS , SHEAR , SHELLS , STRENGTH , STRESS , STRUCTURAL , TESTS , THICKNESS ,

    • NASA-TM-83199 PART 2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1982
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Detailed prediction methods for specific aircraft noise sources are given. These sources are airframe noise, combustion noise, fan noise, single and dual stream jet noise, and turbine noise. Modifications to the NASA methods ...
      Subject(s) : AIRCRAFT NOISE , COAXIAL NOZZLES , ENGINE NOISE , FUEL COMBUSTION , LANDING GEAR , MATHEMATICAL MODELS , NOISE GENERATORS , NOISE PREDICTION (AIRCRAFT) , NOISE PROPAGATION , PREDICTION ANALYSIS TECHNIQUES , TURBOFAN ENGINES , TURBOFANS ,

    • NACA-TR-1051 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: In the first part of the investigation an analysis is made of base pressure in an inviscid fluid, both for two-dimensional and axially symmetric flow. It is shown that for two-dimensional flow, and also for the flow over ...
      Subject(s) : AERODYNAMIC , ANALYSIS , AXISYMMETRIC , BASE , BODIES , BOUNDARY , BOW , COMPARISON , CYLINDRICAL , DRAG , FLOW , FREE , INTERFERENCE , INVISCID , LAMINAR , LAYER , MACH , MATHEMATICS , NUMBER , PRESSURE , PROBLEMS , PROFILES , REVOLUTION , REYNOLDS , SHAPES , SUPERSONIC , SUPPORTS , TESTS , TRANSITION , TUNNEL , TUNNELS , TURBULENT , VALUE , VISCOUS , WAVES , WIND ,

    • NASA-LLIS-0548 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Subject(s) : Flight Equipment , Hardware , Hazardous/Toxic Waste/Materials , Test & Verification ,

    • NASA-LLIS-1371 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Moving and opening a shipping container induced a charge on the surfaces of the container and onto the attached Mars Exploration Rover equipment module. Even with standard ESD control procedures ...
      Subject(s) : ESD damage , ESD effects , Facilities , Flight Equipment , Ground Equipment , ground handling , Ground Operations , ground transportation , Hardware , NASA Standards , Packaging Handling Storage , Parts Materials & Processes , Payloads , Safety & Mission Assurance , Test & Verification , Test Article , Test Facility ,

    • NASA-TN-3391 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Experimental measurements of average skin friction of the turbulent boundary layer have been made on free-flying, hollow-cylinder models at Mach numbers of 2.8, 3.8, 5.6, and 7.0, at conditions of high rates of heat transfer. ...

    • NASA-CR-3449 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1981
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An improved version of Woodward's chord plane aerodynamic panel method for subsonic and supersonic flow is developed for cambered wings exhibiting edge separated vortex flow, including those with leading edge vortex flaps. ...
      Subject(s) : ANGLE , ATTACK , CAMBERED , EDGE , EQUATIONS , FLAPS , FLOW , LEADING , LIFT , POTENTIAL , SUBSONIC , SUCTION , SUPERSONIC , THRUST , VORTEX , VORTICES , WINGS ,

    • NASA-LLIS-0499 

      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 maintenance team was removing a gate valve from a high pressure (5000 pounds per square inch) nitrogen trailer at the fill end of the trailer. After the valve bolts were ...
      Subject(s) : Pressure Vessels , Safety & Mission Assurance ,

    • NACA-TN-1738 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A wind-tunnel investigation has been made of the low-speed lateral. control characteristics of a tapered, low-hag semispan model equip with 20-percent-chord sealed ailerons having spans of 0.954, 0.583, and 0.294 percent ...
      Subject(s) : AILERONS , AIRFOILS , CARRIED , CHARACTERISTICS , CONTROLS , DEVICES , DISTRIBUTION , DRAG , GAP , HINGE , LAL , LATERAL , LOW , MOMENTS , MPH , NACA , PITCHING , PRESSURE , ROLLING , SEALED , TAPERED , TESTS , TUNNEL , WIND , WINGS , WORK , YAWING ,

    • NASA-LLIS-1124 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Outmoded Design of Space Shuttle General Purpose Computer (GPC) Limit Software and Hardware Upgrades
      Subject(s) : Aerospace Safety Advisory Panel , Computers , Policy & Planning , Software , Spacecraft ,

    • NASA-LLIS-0760 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Eddy Current Testing (ECT) can be used on electrically conductive material for detecting and characterizing defects such as surface and near surface cracks, gouges, and voids. It can also be ...

    • NASA-LLIS-1860 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The lesson learned is that when producing small size fillet welds in 6000 series aluminum there is an inherent risk that the welded part can be produced in accordance with approved manufacturing ...
      Subject(s) : Additional Categories. , Additional Categories.Ground Equipment , Manufacturing and Assembly , Mission Operations and Ground Support Systems. , Mission Operations and Ground Support Systems.Ground support systems ,

    • NACA-CB-L4G10 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1944
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Extensive tests of split flaps and other type of high-lift device used in conjunction with the older conventional airfoils have been conducted in wind tunnels and in flight. Because of the data available ...

    • NASA-TM-X-3160 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1975
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Low-speed wind-tunnel tests have been conducted to determine the two-dimensional aerodynamic characteristics of the NACA 65 sub 1-213, a = 0.05, airfoil. The results were compared with data from another low-speed wind ...
      Subject(s) : AERODYNAMIC , AIRFOIL , CHARACTERISTICS , COEFFICIENTS , DATA , DIMENSIONAL , FLOW , GEOMETRY , LOW , PROCESSING , PROFILES , SPEED , TESTS , TUNNEL , TWO , VISCOUS , WIND ,

    • NASA-LLIS-0864 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An employee of NSI Technology Services Corporation (NSI) injured his right hand in a table saw accident. The injury occurred when the employee was modifying conference ...
      Subject(s) : Administration/Organization , Ground Operations , Human Factors , Industrial Operations , Occupational Health , Personal Protective Equipment ,