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

Now showing items 3381-3400 of 3613

    • NACA-RM-A51D27 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Theoretical studies and a number of experimental investigations have indicated that camber and twist may improve the characteristics h. of swept wings. This improvement results from more ...

    • NASA-LLIS-4516 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Configuration and Data Management (CDM) is performed at the Kennedy Space Center (KSC) for hardware and software by the different programs and projects independently of the Center/Institution. ...
      Subject(s) : Business Processes , Configuration and Data Management , Cross Agency Coordination , Information System , Organization Planning ,

    • NASA-LLIS-0419 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The SEASAT-A Synthetic Aperture Radar system end-to-end gain was instable due RF leakage that varied with the sensor gain state and with temperature. Use of prototype models and diagnostic ...
      Subject(s) : Communication Link , Design Verification , Hardware , Spacecraft Radar , Test & Verification ,

    • NASA-TN-D-6243 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Predicting aerodynamic characteristics of arrow, delta, and diamond wing platforms using Prandtl-Glauert transformation
      Subject(s) : AERODYNAMIC , ARROW , CHARACTERISTICS , CHARTS , COMPRESSIBLE , DELTA , FLOW , GRAPHS , MATHEMATICS , PLANFORMS , SUBSONIC , TRANSFORMATIONS , VORTICES , WING , WINGS ,

    • NASA-LLIS-0214 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Criteria for design, performance, launch commit, and other operations have used "ambient" conditions as a reference or base for evaluating systems which could be affected ...
      Subject(s) : Environment ,

    • NASA-LLIS-1239 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Potential slide or cancellation of Cockpit Avionics Upgrade for the Orbiter.
      Subject(s) : Aerospace Safety Advisory Panel , Computers , Configuration Management , Flight Operations , Human Factors , Risk Management/Assessment , Safety & Mission Assurance , Software , Spacecraft ,

    • NACA-RM-L50A04 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      An investigation is being conducted on a 47.7° sweptback wing with aspect ratios 5.1 and 6.0 to provide low-speed large-scale data on relatively high-aspect-ratio sweptback wings. In order to indicate ...

    • NASA-LLIS-1084 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The primary cause of this Central Power Plant (CPP) pressurized steam line incident was that no one took responsibility for coordinating all aspects of executing the outage.
      Recommendations ...
      Subject(s) : Communication Systems , Facilities , Human Factors , Industrial Operations , Logistics , Mishap Reporting , Occupational Health , Packaging Handling Storage , Pressure Vessels , Safety & Mission Assurance ,

    • NASA-TN-D-4759 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1968
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Noncavitating and cavitating performance of two low area ratio water jet pumps with throat lengths of 5.66 diameters.
      Subject(s) : CAVITATION FLOW , HYDRAULIC JETS , JET PUMPS , NOZZLE GEOMETRY , PERFORMANCE PREDICTION , PERFORMANCE TESTS , RATIOS , THROATS ,

    • NACA-TM-838 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1937
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The monocoque form of airplane construction has introduced a number of new problems to the stress calculator and the designer. The problems for the stress calculator fall into two groups: the determination of the stress ...

    • NASA-LLIS-0077 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      While pressurizing the oxidizer propellant tank, a change in ullage pressure of 8 psi occurred and caused the computer program to indicate that the interface and supply ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Pressure Vessels , Software ,

    • NASA-LLIS-1008 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Environmental Regulations Resulting in Manufacturing Process and Test Certification Changes for RSRM.
      Subject(s) : Aerospace Safety Advisory Panel , Energy , Environment , Ground Operations , Hazardous/Toxic Waste/Materials , Policy & Planning , Safety & Mission Assurance , Test & Verification ,

    • NACA-TN-2699 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: On the basis of linearized supersonic-flow theory the stability derivatives Cma and Cmq (moment coefficients due to angle of attack and steady pitching velocity, respectively) and CLq (lift ...

    • NASA-LLIS-0636 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On 7/12/99, a mechanic was performing a verification leak test (using a 2900 psig gaseous nitrogen pressure source) of a 1/2" hand valve when an incorrect fitting blew ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Ground Equipment , Pressure Vessels , Test & Verification , Test Facility ,

    • NASA NPR 8910.1 REV C W/CHG 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This NPR delineates the responsibilities and implementing requirements for the Agency's use of animals in research, testing, teaching, and hardware development activities, including such ...

    • NASA-LLIS-1399 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      All projects involving multiple Centers require diplomacy and sensitivity to human relations in order to overcome Center-to-Center issues that may otherwise undermine the projects' success.
      Subject(s) : Administration/Organization , communication , competition , conflict , External Relations , multiple centers , Policy & Planning , Program and Project Management , Risk Management/Assessment ,

    • NASA-LLIS-0867 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      GN2 is provided to the actuator breather of pneumatically actuated valves used in hostile environments (salt spray, high humidity, SRB exhaust).

    • NACA-RM-A54H27 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The target-pursuit maneuvers or programmed trajectory of guided missiles frequently require flight at large angles of attack (of the order of 30°), particularly at high altitudes. Limited experimental ...
      Subject(s) : AERODYNAMIC , ANGLE , ATTACK , CHARACTERISTICS , CONFIGURATIONS , CRUCIFORM , LONGITUDINAL , MACH , MISSILE , NUMBER , STABILITY , TESTS , TUNNEL , WIND , WINGS ,

    • NASA-LLIS-5936 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: At approximately 9:00 p.m., on 28 January 2010, a six-inch diameter fire suppression (Firex) main supply pipe coupling separated from a pipe elbow releasing approximately 29,000 gallons of water into the Kennedy Space ...
      Subject(s) : Additional Categories.Accident Investigation , Additional Categories.Facilities , Additional Categories.Fire Protection , Safety and Mission Assurance.Maintenance ,

    • NASA-LLIS-0391 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Galileo mission twice experienced difficulties with recovery from safing errors due to a lack of a formal safing recovery plan and to software/documentation that had not been kept current ...
      Subject(s) : Commanding , Configuration Management , Software , Spacecraft ,