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

Now showing items 621-640 of 3613

    • NASA-LLIS-0116 

      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 demating the ET from the SRB's during OMI S0033, TPS foam damage occurred on the +Y forward crossover area. Scraping noises were heard and interference was observed. ...
      Subject(s) : Flight Equipment , Ground Operations ,

    • NASA-LLIS-1113 

      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 Sufficient Operational Assets to Procure Necessary Safety Hardware.
      Subject(s) : Aerospace Safety Advisory Panel , Extra-Vehicular Activity , Flight Equipment , Procurement Small Business & Industrial Relations , Research & Development ,

    • NASA-LLIS-5236 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A mockup analysis for the Constellation Program's Ares-1 launch vehicle was performed to provide efficient, effective ground processing inside and outside the vehicle. The analysis was performed by engineers, technicians, ...

    • NASA-LLIS-0748 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An excavation was done to facilitate the installation of a larger water line to service a buildings fire sprinkler system. Shortly after the excavation was filled a large ...
      Subject(s) : Emergency Preparedness , Environment , Facilities , Fire Protection , Occupational Health , Procurement Small Business & Industrial Relations ,

    • NASA-LLIS-1840 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The APD detector assembly failed during the Satellite Thermal/Vacuum test due to design-drawing error. The design-drawing error indicated reversed installation of a polarized capacitor. The ...
      Subject(s) : Safety and Mission Assurance. , Systems Engineering and Analysis. ,

    • NACA-TR-610 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1937
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A recent investigation of numerous related airfoils indicated that positions of camber forward of the usual location resulted in an increase of the maximum lift. As an extension of this investigation, a series of forward-camber ...
      Subject(s) : AERODYNAMIC , AIRFOIL , AIRFOILS , CAMBER , CHARACTERISTICS , COEFFICIENTS , DRAG , EDGE , FLAPS , FULL , LIFT , PROFILES , RATIO , SCALE , SPLIT , TESTS , THICKNESS , TRAILING , TUNNEL , WIND ,

    • NACA-TR-1356 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Report presents the results of experimental and theoretical research conducted on flow separation associated with steps, bases, compression corners, curved surfaces, shock-wave boundary-layer reflections, and configurations ...
      Subject(s) : BOUNDARY , CROCCO , DIMENSIONAL , FLAT , FLOW , LAMINAR , LAYER , LEE , MACH , NUMBER , PLATES , POINTS , REATTACHED , REYNOLDS , SEPARATED , SEPARATION , SUBSONIC , SUPERSONIC , TESTS , THEORY , TRANSITION , TUNNEL , TURBULENT , TWO , WIND ,

    • NASA-TN-D-2339 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1964
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Correlation graphs for supersonic flow over right circular cones
      Subject(s) : CIRCULAR , CONE , CONES , FLOW , GAS , IDEAL , SUPERSONIC , YAW ,

    • NACA-TN-3170 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Wind-tunnel tests of a body of revolution with a circular nose inlet were conducted at low speeds to ascertain some of the effects of inlet lip bluntness and profile diffuser performance and body drag. The tests were ...

    • NASA-CR-135255 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1977
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The decomposition and corrosion of two-phase heat transfer liquids and metal envelopes have been investigated on the basis of molecular bond strengths and chemical thermodynamics. Potentially stable heat transfer fluids ...
      Subject(s) : ALUMINUM , CARBON STEELS , CHEMICAL BONDS , CORROSION , FLUID FLOW , HEAT PIPES , HEAT TRANSFER , METALS , MOLECULAR PHYSICS , THERMODYNAMICS , TWO PHASE FLOW ,

    • NASA-LLIS-0476 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      One of the first United States Microgravity Laboratory (USML-1) pre-mission timeline constraints addressed the number of hours that a crew member could be scheduled for ...
      Subject(s) : Flight Operations , Human Factors ,

    • NASA-TN-D-4563 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1968
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: FORTRAN program for approximate calculation of supersonic ideal gas flow past blunt bodies with sonic corners
      Subject(s) : AERODYNAMIC , ANALYSIS , APPROXIMATION , BLUNT , BODIES , CHARACTERISTICS , COMPUTER , CORNERS , FLOW , FORTRAN , GAS , IDEAL , NUMERICAL , PROGRAMS , SUPERSONIC , TRANSONIC ,

    • NASA-LLIS-1319 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During a materials science investigation process run within the MSG on-board ISS on 7/23/02, the SUBSA Eurotherm Controller (Zone 1) on the Process Control Module (PCM) ...
      Subject(s) : Policy & Planning , Research & Development , Risk Management/Assessment , Test & Verification ,

    • NACA-RM-L56F18 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Recent investigations of spoiler-type controls suitable for use on high-speed thin-wing configurations have shown that the spoiler-slot-deflector has certain advantages over the plain flap-type spoiler, ...

    • NACA-RM-L51H13 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results are presented of an investigation in the Langley 19-foot pressure tunnel of the longitudinal characteristics of a wing having 45º sweepback of the quarter-chord line, an aspect ratio of 8, a taper ratio of ...

    • NASA-LLIS-6636 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Where previous JPL spaceflight projects relied solely on interim inspections and walkdowns during ATLO, the in-house MSL project conducted a formal, final, mechanical walkdown of the as-built configuration prior to vehicle ...

    • NASA-LLIS-0342 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On the STS 51/TOS mission, during payload deployment, commands intended to initiate only the primary SUPER*ZIP explosive cord actually resulted in the simultaneous firing ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Hardware , Safety & Mission Assurance , Test & Verification ,

    • NASA-LLIS-2049 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Fault management subsystems reveal pervasive architecture, design, and verification/validation (V&V) problems during both technical reviews of spaceflight missions and in-flight. An industry-wide ...
      Subject(s) : Early requirements and standards definition , Engineering design and project processes and standards , Flight Equipment , Flight Operations , Independent Verification and Validation , Information Technology/Systems , Level II/III requirements definition , Long term sustainability and maintenance planning , Mission and systems trade studies , Mission concepts and life-cycle planning , Mission control Planning , Mission definition and planning , Mission operations systems , Payloads , Planning of requirements verification processes , Reliability , Review boards , Review systems and boards , Robotics , Simulators and Training Systems , Software , Software Engineering , Spacecraft and Spacecraft Instruments , Standard , Test & Verification , Training and simulation systems ,

    • NASA-LLIS-1086 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The incidents described in Lessons Learned #1084 and #1085 suggest a lack of awareness of what constitutes a close call and the fact that close calls should be reported into the NASA Mishap ...
      Subject(s) : Administration/Organization , Communication Systems , Configuration Management , Facilities , Human Factors , Human Resources & Education , Industrial Operations , Logistics , Mishap Reporting , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0839 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Apply techniques such as Built in Test (BIT), strategic placing of sensors, centralized architecture, and fault isolation and recovery to optimize system availability.