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

Now showing items 801-820 of 3613

    • NACA-RM-L53F12 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A knowledge of the magnitude of the effects of flap geometry and position on the span loading and pitching-moment characteristics of a wing is required in the aerodynamic and structural design of aircraft. ...

    • NASA NPR 9610.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This NASA Procedural Requirements (NPR) document provides requirements for the recognition, recording, and reporting of public and intragovernmental accounts receivable. This NPR also addresses ...

    • NASA NPD 2830.1 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD is applicable to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers. This language applies to the Jet Propulsion Laboratory ...

    • NASA-TR-R-64 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A study is presented of most of the properties of pneumatic tires which are of interest to aircraft designers. The principal topics discussed are tire vertical-force-deflection characteristics; lateral, fore-and-aft, and ...
      Subject(s) : AIRCRAFT TIRES , CENTRIFUGAL FORCE , FOOTPRINTS , MECHANICAL PROPERTIES , PNEUMATICS , RELIABILITY , SELF ALIGNMENT , TORQUE , TORSION ,

    • NASA NASA-LLIS-0317 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Sneak circuit analysis was performed on Skylab to assure a high probability of freedom from undesired current paths. Forty-four sneak circuits were found on Skylab, along ...
      Subject(s) : Risk Management/Assessment , Safety & Mission Assurance ,

    • NASA-LLIS-0043 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1991
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A mishap occurred when technicians did not follow the sequence of events specified in the PR disposition for assembly of the thruster and fixture. The T-shaped mounting ...
      Subject(s) : Hardware , Industrial Operations , Parts Materials & Processes ,

    • NASA-LLIS-1049 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Increased Space Shuttle Main Engine (SSME) Power Setting for Intact Aborts
      Subject(s) : Aerospace Safety Advisory Panel , Cryogenic Systems , Ground Operations , Launch Process , Parts Materials & Processes , Policy & Planning , Pressure Vessels , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NASA-LLIS-3016 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The processing of flight hardware requires the ability to track and account for thousands of individual parts in real time. Faster, more accurate processing and documentation can be achieved ...
      Subject(s) : 0.Configuration Management , 0.Ground Operations , 0.Packaging , Handling , Storage , 0.Parts , Materials , & Processes , 1.Configuration control and data management , 1.Ground processing and manifesting ,

    • NASA NPD 3451.5 REV C W/CHG 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-0697 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use active redundancy as a design option when development testing and reliability analysis show that a single component is not reliable enough to accomplish the function. Although active ...

    • NASA-LLIS-1795 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2007
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      One of NASAs earliest activities for implementing the vision for space exploration is the initiation of a series of robotic missions to the moon to prepare for and support future human ...
      Subject(s) : Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Lander Systems , Engineering Design (Phase C/D).Orbiting Vehicles , Engineering Design (Phase C/D).Robotics , Integration and Testing , Mission Operations and Ground Support Systems. , Mission Operations and Ground Support Systems.Logistics and maintenance , Mission Operations and Ground Support Systems.Lunar Operations , Mission Operations and Ground Support Systems.Mission operations systems , Mission Operations and Ground Support Systems.Planetary Operations , Mission Operations and Ground Support Systems.Training and simulation systems , Missions and Systems Requirements Definition. , Missions and Systems Requirements Definition.Configuration control and data management , Missions and Systems Requirements Definition.Review boards , Program Management. , Program Management.Communications between different offices and contractor personnel , Program Management.Configuration and data management , Program Management.Program level review processes , Program Management.Risk management , Safety and Mission Assurance. , Safety and Mission Assurance.Review systems and boards , Systems Engineering and Analysis. , Systems Engineering and Analysis.Engineering design and project processes and standards , Systems Engineering and Analysis.Planning of requirements verification processes ,

    • NASA-LLIS-1438 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Because some investigation board members may have minimal knowledge of space flight systems, NASA needs to anticipate this and be better prepared with technical and procedural materials to ...
      Subject(s) : Accident Investigation , Administration/Organization , Human Resources & Education , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NACA-RM-L6L27 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The low-speed aerodynamic characteristics of a 40° swept-back wing of aspect ratio 4, taper ratio 0.625, and NACA 641-112 sections were reported in reference 1. This wing, like many swept-back ...

    • NASA-LLIS-0431 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During the system assembly process for the ASTROS Tracker, two external interconnect cables between the Sensor Assembly and the Electronic Assembly were cross connected. This problem was ...
      Subject(s) : Assembly Practices , Cabling , Configuration Management , Flight Equipment , Hardware ,

    • NASA-LLIS-0229 

      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 original STS operations baseline plan defined required capabilities for the STS system before it was designed. The operational system would fly 6 flights the first ...
      Subject(s) : Administration/Organization , Human Resources & Education ,

    • NACA-TN-1212 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1947
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In selecting the airfoil sections to be employed in the design of a tailless airplane, an important consideration is the wing pitching moments which, for trim requirements, must remain moderate. Because ...

    • NASA-TN-D-6263 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Lift and drag characteristics of HL-10 lifting body during subsonic gliding flight
      Subject(s) : AERODYNAMIC , BOUNDARY , CHARACTERISTICS , DRAG , FLOW , GLIDING , LAYER , LIFT , RATIO , REENTRY , SEPARATED , SEPARATION , SPEED , SUBSONIC , VEHICLE ,

    • NASA-LLIS-1288 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In order to minimize cost and schedule, the project, after a trade-off analysis, decided to build two fully functional test vehicles as opposed to one with built in ...
      Subject(s) : Configuration Management , Flight Equipment , Flight Operations , Risk Management/Assessment ,

    • NACA-RM-L51F22 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Previous investigations of plain flap-type ailerons on sweptback wings (references 1 to 3) have shown that the aileron effectiveness in the low lift range can be predicted by semiempirical means based on ...

    • NASA-LLIS-0094 

      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 removal of the purge adapter from thruster R4D, liquid MMH was observed leaking from the thruster nozzle. When the leak was discovered the OPF high bay hypergolic ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Flight Equipment , Hardware , Launch Vehicle , Pressure Vessels ,