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

Now showing items 1621-1640 of 3613

    • NACA-TN-1581 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Contains derivations, based on a simplified theory, of approximate relations for low-speed stability derivatives of swept wings. Method accounts for the effects and, in most cases, taper ratio. Charts, based on the derived ...
      Subject(s) : AIRFOILS , ASPECT , CALCULATIONS , CHARTS , EQUATIONS , MOMENTS , NACA , PITCHING , RATIO , ROLLING , SIDESLIPPING , SMALL , STABILITY , SWEPTBACK , SWEPTFORWARD , THEORIES , WINGS , YAWING ,

    • NACA-TN-3105 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A general method, based on two-dimensional crossflow concepts, is presented for obtaining the lift and moments on highly swept wings. Emphasis is placed on obtaining solutions for wings having swept trailing edges. The ...

    • NASA-CR-134264 PART 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1972
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The development and characteristics of heat pipes are examined. The subjects discussed are: (1) principles of operation, (2) heat pipe theory, (3) pressure gradient effects, (4) variable conductance, (5) design procedure, ...
      Subject(s) : EQUIPMENT SPECIFICATIONS , HEAT PIPES , HEAT TRANSFER , TEMPERATURE CONTROL , TEMPERATURE EFFECTS , THERMODYNAMIC PROPERTIES ,

    • NASA-LLIS-0475 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During ground operations at KSC, the first United States Microgravity Laboratory (USML-1) experienced canister fit problems with the LiOH flight storage containers. This ...
      Subject(s) : Ground Operations , Hardware , Test & Verification , Transportation ,

    • NASA-LLIS-0284 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Voyager 2 suffered two potentially mission-catastrophic in-flight faults that were recoverable due to the availability of spare spacecraft hardware that was used to test workaround solutions. ...
      Subject(s) : Mission Operations , Risk Management/Assessment ,

    • NASA-TN-D-3845 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1967
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Rolling stability derivatives of variable sweep tactical fighter aircraft model at subsonic and transonic speeds
      Subject(s) : AIRCRAFT , ANGLE , ATTACK , DERIVATIVES , FIGHTER , MACH , MODELS , NUMBER , REYNOLDS , SPEED , STABILITY , SUBSONIC , SWEEP , TRANSONIC , VARIABLE , WINGS ,

    • NACA-TN-3677 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: It has been recognized for some time, and shown quantitatively by the results of flight tests, that low-speed lateral control of airplanes may be insured by a simple limitation of the maximum elevator deflection so that ...

    • NASA-LLIS-1316 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Pyro pin puller parts were unexpectedly ejected with explosive force during a test of the Mars Exploration Rover dynamic test model.
      The lesson makes personnel safety recommendations for ...
      Subject(s) : Aerospace Safety Advisory Panel , Energetic Materials - Explosive/Propellant/Pyrotechnic , Explosives Handling , Facilities , Flight Equipment , Ground Equipment , Ground Operations , Hardware , Industrial Operations , Occupational Health , occupational safety , Personal Protective Equipment , pyro hazard , pyrotechnic shock test , Safety & Mission Assurance , system safety , Test & Verification , Test Article , Test Facility , test failure , test hazard , test mishap ,

    • NACA-RM-L56D05 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A research program has been undertaken in the Langley 4- by 4-foot supersonic tunnel to determine the aerodynamic characteristics of a model of a 45° swept-wing fighter airplane in the mach number ...

    • NACA-RM-L51A23 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Tests were made of the Douglas D-558-1 airplane to determine the effect of wing vortex generators on some of the typical undesirable handling characteristics such as buffeting, lateral unsteadiness, change in trim, and ...

    • NASA-LLIS-0379 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A violation of electrical interfacing and grounding requirements for Magellan resulted in substantial damage to the CDS analog telemetry circuitry. Care must be taken to ensure that design ...
      Subject(s) : Configuration Management , Spacecraft ,

    • NASA-LLIS-2046 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Most commercial cylindrical 18650 Lithium-Ion (Li-Ion) cells have two internal protective devices: the Positive Temperature Coefficient (PTC) and the Current Interrupt Device (CID). The PTC ...
      Subject(s) : Additional Categories.Energy ,

    • NACA-RM-A9K01 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The use of the swept-wing plan form for delaying the onset of serious compressibility effects to higher Mach numbers has received Considerable theoretical and experimental study. A knowledge of the degree ...

    • NASA-LLIS-0705 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Preferred Practice for Design & Test. The absence of micrometeoroid protection measures in spacecraft and mission design will increase the risk of significant damage to the spacecraft, ...

    • NASA-LLIS-1499 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The Orbital Space Plane (OSP) failed to quickly charter a strong, centralized technical authority. New programs should establish a systems engineering and integration role with the authority ...
      Subject(s) : Policy & Planning , Program and Project Management ,

    • NASA-LLIS-1778 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2007
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      After launch, MRO was found to be susceptible to a solar flare event during the critical aerobraking phase of the mission that could corrupt the multiply redundant identical file systems in ...
      Subject(s) : Additional Categories. , Additional Categories.Environment , Engineering Design (Phase C/D).Entry Systems , Engineering Design (Phase C/D).Orbiting Vehicles , Engineering Design (Phase C/D).Robotics , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Mission Operations and Ground Support Systems. , Safety and Mission Assurance.Product Assurance , Safety and Mission Assurance.Reliability , Systems Engineering and Analysis.Engineering design and project processes and standards ,

    • NASA-TP-2215 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1964
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Buckling analyses used in PASCO are summarized with emphasis placed on the shear buckling analyses. The PASCO buckling analyses include the basic VIPASA analysis, which is essentially exact for longitudinal and transverse ...
      Subject(s) : BUCKLING , COMPOSITE , COMPRESSION , COMPUTER , ELEMENT , FINITE , LOADS , MATERIALS , MEMBER , METHOD , ORTHOTROPIC , PANELS , PLATES , PROGRAMS , SHEAR , SKIN , STIFFENING , STRESS , STRUCTURAL ,

    • NACA-TR-1031 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was made to determine the accuracy with which the lateral flight motions of a swept-wing airplane could be predicted from experimental stability derivatives determined in the 6-foot-diameter rolling-flow ...

    • NASA-LLIS-0485 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The "most probable cause" of the Mars Observer mission failure was identified as migration of substantial amounts of nitrogen tetroxide oxidizer upstream through the check valves where it ...
      Subject(s) : Bipropellant Propulsion System , Energetic Materials - Explosive/Propellant/Pyrotechnic , Propellant Vapor Diffusion , Spacecraft ,

    • NASA-LLIS-0257 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Operations personnel, in an engine test facility, reported that JP-4 fuel was found leaking in the basement of the building. Emergency staff responding to the call discovered ...
      Subject(s) : Configuration Management , Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilities , Hazardous/Toxic Waste/Materials ,