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

Now showing items 2661-2680 of 3613

    • NASA-TM-X-3128 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An experimental investigation was conducted to determine the effect of forebody geometry, a grit ring around the nose, Reynolds number, Mach number, and angle of attack on the aerodynamic characteristics of a body of ...
      Subject(s) : AERODYNAMIC , ANGLE , ATTACK , BODIES , CHARACTERISTICS , FOREBODIES , MACH , NOSES , NUMBER , REVOLUTION , REYNOLDS , TESTS , TUNNEL , WIND ,

    • NASA-LLIS-0563 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A routine hookup and pump testing was being attempted on LOX barge #5 by Test Complex technicians. They were working under a process plan and standard operating procedure ...

    • NASA NPR 9470.1 

      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 Budget Execution.
      APPLICABILITY
      This NPR is applicable to NASA Headquarters ...

    • NASA-LLIS-1395 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A potentially complex test was innovatively implemented to take advantage of existing capabilities using sound engineering, insight into key test equipment and program capabilities, and ...
      Subject(s) : Administration/Organization , Configuration Management , External Relations , Facilities , Human Resources & Education , Policy & Planning , Procurement Small Business & Industrial Relations , Program and Project Management , Research & Development , Risk Management/Assessment , Safety & Mission Assurance , Software , Test & Verification , Test Article , Test Facility ,

    • NACA-RM-A52K13 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The low-speed aerodynamic characteristics of an airplane model with an aspect ratio 4 triangular wing and an all-movable horizontal tail have been under investigation in the Ames 40- by 80-foot wind tunnel. ...

    • NASA-TR-D-860 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1946
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The NACA has developed means, including an injection impeller and ducted head baffles, to improve the cooling characteristics of the 3350-cubic-inch-displacement radial engines installed in a four-engine heavy bomber. The ...
      Subject(s) : AIR COOLING , AIRCRAFT ENGINES , AIRCRAFT PERFORMANCE , BAFFLES , BOMBER AIRCRAFT , COOLING SYSTEMS , CRUISING FLIGHT , CYLINDERS , FUEL INJECTION , HORIZONTAL FLIGHT , IMPELLERS , INTERNAL COMBUSTION ENGINES , PRESSURE DROP , VALVES ,

    • NASA-CR-176615 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1985
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A wind tunnel investigation of concepts to improve the high angle-of-attack stability and control characteristics of a high performance aircraft was conducted. The effect of vertical tail geometry on stability and the ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANGLE , ASSEMBLIES , ATTACK , CHARACTERISTICS , DYNAMICS , EDGE , FLUID , LEADING , STABILIZERS , STALLING , SUPERSONIC , SWEEP , TAIL , TESTS , TUNNEL , WIND ,

    • NASA-HDBK-8739.21 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      The Agency-level quality requirements for ESD safety and control are defined by NPD 8730.5, NASA Quality Assurance Policy Requirements, and are wholly contained in ANSI/ESD S20.20, ESD Association ...

    • NASA-LLIS-1385 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Comet Nucleus Tour, CONTOUR, was designed and built by Johns Hopkins University with specialized support from NASA as a part of NASA's Discovery series of solar system exploration satellites. ...
      Subject(s) : Accident Investigation , Administration/Organization , Configuration Management , Flight Operations , Hardware , Independent Verification and Validation , Mishap Reporting , NASA Standards , Policy & Planning , Program and Project Management , Research & Development , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Standard , Test & Verification ,

    • NASA-TR-D-747 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Test of 10-foot diameter, four and six blade single-rotating and dual-rotating propellers were conducted in the NACA propeller-research tunnel. The propellers were mounted at the front end of a streamline body incorporating ...
      Subject(s) : AIRCRAFT , ANGLES (GEOMETRY) , BODY-WING CONFIGURATIONS , CLIMBING FLIGHT , COEFFICIENTS , POWER , PROPELLER BLADES , PROPELLER EFFICIENCY , PROPELLERS , PROPULSIVE EFFICIENCY , TAKEOFF , THRUST , WIND TUNNEL TESTS ,

    • NASA-TM-76710 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1982
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Comprehensive force, moment, and pressure distribution measurements as well as flow visualization experiments were carried out to determine the influence of the Reynolds number on nonlinear normal forces of slender bodies ...
      Subject(s) : AERODYNAMIC , ANGLE , ATTACK , BODIES , BOUNDARY , DISTRIBUTION , FLOW , FORCE , FORCES , LAYER , MOMENT , NUMBER , PRESSURE , REVOLUTION , REYNOLDS , SEPARATION , SLENDER , TESTS , TUNNEL , VISUALIZATION , VORTICES , WIND ,

    • NASA-LLIS-4036 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Each Space Shuttle launch erodes or damages the refractory cement of the MFD. For many years, the damaged cement was removed by hand with pneumatic tools. This method was ...
      Subject(s) : Facilities , Ground processing and manifesting , Ground support systems , Maintenance ,

    • NASA-LLIS-0114 

      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 memory and registers of the main engine controller digital computer unit interface must be loaded and read and must provide discrete controls and status indicators ...
      Subject(s) : Energy , Test & Verification ,

    • NASA-LLIS-1154 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Cancellation of Aeronautics Research and Development (R&D) Programs May Have Impact on Future of Aviation Safety
      Subject(s) : Aerospace Safety Advisory Panel , Aircraft , Financial Management , Policy & Planning , Safety & Mission Assurance ,

    • NASA NPD 2110.1 REV F 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD is applicable to NASA Headquarters and NASA Centers, including Component Facilities, and to any other entity to the extent specified in an agreement or contract between NASA and ...

    • NASA-LLIS-0771 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Voltage and Temperature Margin Testing (VTMT) is the practice of exceeding the expected flight limits of voltage, temperature, and frequency to simulate the worst case functional performance, ...

    • NASA-LLIS-1602 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Following the recommendations from the X43A Flight 1 MIB, the Pegasus actuator system was redesigned to accommodate the need for greater hinge torque. The analog-based legacy actuator system ...
      Subject(s) : Accident Investigation , Flight Equipment , Hardware , Safety & Mission Assurance , Test & Verification ,

    • NASA-LLIS-0912 

      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 Tracking and Data Relay Satellite (TDRS) project entered into a firm fixed price contractual agreement to procure three spacecraft as part of the NASA replenishment ...
      Subject(s) : Risk Management/Assessment , Spacecraft ,

    • NACA-TN-3740 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Damping-in-roll coefficients for a series of triangular plan-form wings and two rectangular plan-form wings have been obtained from supersonic-tunnel tests. The wings were mounted on a body of revolution and tested at Mach ...
      Subject(s) : ASPECT , COMPLETE , DAMPING , DERIVATIVES , EFFECTS , MACH , NUMBER , RATIO , STABILITY , SWEEP , WINGS ,

    • NASA-TM-83199 PART 3 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1986
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The prediction sequence used in the aircraft noise prediction program (ANOPP) is described. The elements of the sequence are called program modules. The first group of modules analyzes the propeller geometry, the aerodynamics, ...
      Subject(s) : AEROACOUSTICS , AERODYNAMIC NOISE , AERODYNAMICS , AIRCRAFT NOISE , BOUNDARY LAYERS , BROADBAND , FAR FIELDS , GROUND EFFECT (AERODYNAMICS) , LOADS (FORCES) , NEAR FIELDS , NOISE PREDICTION (AIRCRAFT) , NOISE PROPAGATION , TIME FUNCTIONS ,