Now showing items 2001-2020 of 3613

    • NASA-LLIS-0319 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Experience on SL-1 and subsequent missions indicated that early face-to-face meetings with experimenters were indispensible.
      Subject(s) : Administration/Organization , Payloads , Policy & Planning ,
    • NASA-LLIS-0198 

      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 effects of an adverse environmental condition, specifically, unusually cold weather, are not sufficiently well understood. The amount of ice formed by leaving valves ...
      Subject(s) : Environment ,
    • NACA-TN-705 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was conducted in the N.A.C.A. 7- by 10-foot wind tunnel to determine the effect of ground proximity on the aerodynamic characteristics of wings equipped with high-lift devices. A rectangular and a tapered ...
    • NASA-LLIS-1217 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      "Hi-Lite" (similar to Hi-Lok) pin and collar fasteners are widely used on ISS Power Module structural assemblies. As part of an internal sharp-object-damage (SOD) ...
      Subject(s) : Extra-Vehicular Activity , Flight Equipment , Ground Equipment , Hardware , Parts Materials & Processes , Risk Management/Assessment , Safety & Mission Assurance , Test & Verification ,
    • NACA-TN-1348 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A series of papers has been prepared to provide information on the buckling of curved sheet. The problem treated in the present paper, which is a part of that series, is the determination Of the critical ...
      Subject(s) : BENDING , BUCKLING , CURVED , DONNELL , FLAT , LOADS , PLATES , RECTANGULAR , SHEAR , SHEARING , SKIN , STRESSED , STRESSES , THEORIES , TORSION ,
    • NASA-LLIS-0495 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1983
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      December 9, 1982, the 80 x 120 foot wind tunnel at the Ames Research Center was undergoing commissioning/shakedown testing when Vane Set 5 collapsed destroying the vane ...
      Subject(s) : Safety & Mission Assuranc , Test Facility ,
    • NASA-LLIS-0842 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use junction boxes and hardlines to provide common charge points for grease lubrication of mechanical systems.
    • NACA-TR-809 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1943
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The principles of the cross method of moment distribution, which have previously been applied to the stability of structures composed of bars under axial load, are applied to the stability of structures composed of long ...
      Subject(s) : BARS , BUCKLING , COMPUTATION , CRITICAL LOADING , METAL PLATES , MOMENT DISTRIBUTION , STIFFNESS , STRUCTURAL MEMBERS , STRUCTURAL STABILITY , STRUCTURES ,
    • NASA-LLIS-0054 

      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 nitrogen tetroxide (N2O4) vapor release, which occurred during a storage tank relief valve changeout, greatly exceeded the "one gallon quantity" specified in the task ...
      Subject(s) : Communication Systems , Emergency Preparedness , Energetic Materials - Explosive/Propellant/Pyrotechnic , Facilitie , Hazardous/Toxic Waste/Materials , Industrial Operations , Personal Protective Equipment , Safety & Mission Assurance ,
    • NASA-LLIS-0267 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      In preparing Topex/Poseidon for system test in 1993, the lifting fixture was severely damaged while lifting the spacecraft. Conduct rigorous analysis to verify and demonstrate that the lifting ...
      Subject(s) : Handling , Hardware Safety , Industrial Operations , Lifting Devices ,
    • NASA-STD-8719.17 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      The purpose of this document is to ensure the structural integrity of PVS through implementation of a minimum set of requirements for ground-based PVS in accordance with this document, NASA ...
    • NASA-LLIS-0601 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Galileo and Deep Space 1 failures during ground test and integration damaged power subsystem modules, demonstrating the importance of an adequate supply of these spares. Since power subsystem ...
      Subject(s) : DS1 , Energy , GLL , Logistics , PCU , Power Converter Unit , Power Module , PPS ,
    • NASA-TN-D-6946 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1972
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Representative state-of-the-art analytical procedures and design data for predicting the lateral-directional static and dynamic stability and control characteristics of light, twin-engine, propeller-driven airplanes for ...
    • NASA-LLIS-1443 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      More IT pre-planning would have enabled a quicker and smoother start-up of the investigation.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , NASA Standards , Policy & Planning , Safety & Mission Assurance ,
    • NASA-LLIS-0881 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      During new design or upgrades to existing transmission systems, consider the use of fiber optic systems in place of metallic cable systems.
    • NACA-TN-2416 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A theoretical study, based on the usual assumptions of airplane stability theory, has been made of the response to gusts and the stability and control characteristics of an airplane equipped with systems in which wing flaps ...
    • NASA-TM-X-3078 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation has been made in the Mach number range from 0.20 to 2.16 to determine the longitudinal aerodynamic characteristics of a fighter airplane concept. The configuration concept employs a single fixed geometry ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , CHARACTERISTICS , CONFIGURATIONS , CONTROL , FIGHTER , FLIGHT , LONGITUDINAL , PERFORMANCE , PREDICTION , STABILITY , TESTS , TUNNEL , WIND ,
    • NACA-RM-A52F18 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Military and commercial requirement for higher cruising speeds and altitudes in long-range airplanes have emphasized the need for extending research concerning swept-back wings to include those of large ...
    • NASA-LLIS-1328 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During Payload test and checkout System (PTCS) testing of flight hardware, steps in the testing procedure to verify a certain configuration was inconsistent with actual ...
      Subject(s) : Ground Operations , Human Factors , Safety & Mission Assurance ,
    • NASA-LLIS-0173 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Flammable and toxic vapors can be expelled into the deservicing hangar at DFRC, providing a potential for fire, explosion and toxicity above the permissible exposure limits ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Flight Equipment , Ground Operations , Hazardous/Toxic Waste/Materials ,