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

Now showing items 1281-1300 of 3613

    • NASA NPR 8800.15 REV B 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      a. This NASA Procedural Requirement (NPR) provides procedural requirements for National Aeronautics and Space Administration (NASA) personnel tasked with acquiring and managing real estate ...

    • NASA-LLIS-0774 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Direct current (DC) electrical isolation verification tests are made as part of the EMC test of hardware prior to final spacecraft assembly. Flight acceptance isolation retest is required ...

    • NASA-LLIS-1606 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The contractor»s primary area of expertise with respect to heat transfer was in an environment different than required (atmospheric versus space flight). Thus, their initial design ...
      Subject(s) : Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance ,

    • NACA-TR-800 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1944
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Tests of a wing-fuselage combinations incorporating NACA 65-series airfoil sections were conducted in the NACA 19-foot pressure tunnel. The investigation included the tests with flaps neutral and with partial- and full-span ...
      Subject(s) : AERODYNAMIC , ANGLE , BODY , CONFIGURATIONS , CONTROL , FLAPS , FORWARD , LATERAL , SLOTS , STABILITY , STALLING , SWEEP , SWEPT , SWEPTBACK , TESTS , TUNNEL , WIND , WING , WINGS ,

    • NASA-LLIS-0916 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The MCO project declined further consideration of a fifth trajectory correction maneuver because it had not been adequately tested. Flight projects should review their operational scenarios ...
      Subject(s) : Configuration Management , Flight Operations , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification ,

    • NACA-TN-3781 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1957
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The various factors governing buckling of flat plates are critically reviewed and the results are summarized in a comprehensive series of charts and tables. Numerical values are presented for buckling coefficients of flat ...
      Subject(s) : AIRFRAMES , ANALYSIS , BENDING , COEFFICIENTS , COMPRESSION , ELASTIC , FAILURE , FLAT , HANDBOOKS , LOADS , MEMBERS , NUMERICAL , PLASTIC , PLATES , PROPERTIES , RECTANGULAR , RELATIONSHIPS , SHEAR , STABILITY , STRAIN , STRESS , STRUCTURAL , TRIANGLES ,

    • NASA-TM-213049 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Advanced brush and finger seal technologies offer reduced leakage rates over conventional labyrinth seals used in gas turbine engines. To address engine manufacturers concerns about the heat generation and power loss from ...
      Subject(s) : BRUSH SEALS , GAS TURBINE ENGINES , HEAT GENERATION , HIGH SPEED , HIGH TEMPERATURE TESTS , INLET TEMPERATURE , LABYRINTH SEALS , LEAKAGE ,

    • NACA-TR-1096 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of an investigation conducted in the Langley stability tunnel to determine the effects of horizontal tails of various sizes and at various tail lengths (when loaded on the fuselage center line) ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , CONFIGURATIONS , DAMPING , DIMENSIONS , HORIZONTAL , INCLINATION , LENGTH , LOCATION , LONGITUDINAL , MODELS , PERFORMANCE , PITCH , POSITION , SIZE , STABILITY , SURFACES , SWEPTBACK , TAIL , TESTS , TUNNEL , WIND , WINGS ,

    • NASA-LLIS-0551 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An electric power off (EPO) button for computers was located in a room that required a button to be pushed to exit the room. An individual mistook the EPO button for an ...

    • NASA-LLIS-1365 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A mechanical technician came into contact with an energized electrical circuit at the LC-39, Pad A Oxidizer Storage Area. A control cabinet had been removed and the circuit breaker feeding ...
      Subject(s) : Accident Investigation , Configuration Management , Facilities , Ground Equipment , Human Factors , Industrial Operations , Personal Protective Equipment , Safety & Mission Assurance ,

    • NASA-TN-3604 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The low-speed (up to 2 miles per hour) cornering characteristics of two 26 X 6.6, type VII, 13-ply-rating tires under straight-yawed rolling were determined over a range of inflation pressures and yaw angles for two vertical ...

    • NACA-CR-3675 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1983
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The expanded capabilities for analysis and design of low speed flap systems afforded by recent modifications of an existing computer program is described. The program provides for the simultaneous analysis of up to 25 pairs ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANALYSIS , ARROW , COEFFICIENTS , COMPUTER , DESIGN , EDGE , FLAPS , FLOW , LEADING , LOW , MACH , NUMBER , PROGRAMS , REYNOLDS , SPEED , SUBSONIC , SUPERSONIC , TESTS , TRAILING , TUNNEL , VORTICES , WIND , WING , WINGS ,

    • NASA-LLIS-0127 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During the retraction of the orbiter protection system "Y" curtain wall in the console mode, the speed attained after leaving the slow travel transition is excessive. The ...
      Subject(s) : Facilities , Ground Equipment , Ground Operations ,

    • NASA-LLIS-1128 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Lack of Plan to Maintain Commercial Off the Shelf Software Development Tools
      Subject(s) : Aerospace Safety Advisory Panel , Computers , Configuration Management , Information Technology/Systems , Software ,

    • NACA-RM-L7K07 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An exploratory Investigation to obtain a survey of the flying characteristics at low speeds of models with low-aspect-ratio delta wings has been conducted in the Langley free-flight tunnel. Four models having triangular ...

    • NASA-LLIS-0691 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Implement a positive feedback system for reporting, documenting, collecting, analyzing, and closing orbital anomaly (A departure from normal operation. An abnormality in the mission operations ...

    • NACA-TR-664 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was made in the 7 by 10-foot wind tunnel and in the variable-density wind tunnel of the NACA 23012 airfoil with various slotted-flap arrangements. The purpose of the investigation in the 7 by 10-foot wind ...
      Subject(s) : AERODYNAMIC , AIRFOIL , AIRFOILS , CHARACTERISTICS , COEFFICIENTS , DRAG , FLAPS , LIFT , LOCATION , MOMENTS , PITCHING , POSITION , PROFILES , SHAPES , SLOTS , SPLIT , TESTS , TORQUE , TUNNEL , WIND , WING ,

    • NASA-LLIS-1578 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A hot work permit had been issued by a contractor for welding & cutting. The permit was not specific about the location of the Hot Work operations. Even though, no welding had been planned ...
      Subject(s) : Fire Protection ,

    • NACA-ACR-L5F13 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1945
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made in two-dimensional flow to determine the effect of leakage pas the aileron nose on the aerodynamic characteristics of ailerons. Plain and internally balanced ailerons of 0.20 airfoil chord ...

    • NASA-LLIS-0930 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An employee fell through a section of raised flooring that collapsed, suffering knee and back injuries. The ensuing investigation revealed that the floor tile support cross ...
      Subject(s) : Configuration Management , Facilities , Safety & Mission Assurance , Test Facility ,