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

Now showing items 401-420 of 3613

    • NACA-TN-4176 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The aerodynamic characteristics of several noncircular two-dimensional cylinders with axes normal to the steam at various flow incidences (analogous to angles of attack of a two dimensional airfoil and obtained by rotating ...

    • NASA-TN-D-6997 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1972
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Properties of the shock relations for steady, irrotational, transonic flow are discussed and compared for the full and approximate governing potential in common use. Results from numerical experiments are presented to show ...
      Subject(s) : DRAG , FINITE DIFFERENCE THEORY , POTENTIAL FLOW , SHOCK WAVES , STEADY FLOW , TRANSONIC FLOW ,

    • NASA-LLIS-0626 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During final assembly of the Deep Space 2 (DS2) Mars Microprobes, each of the two flight probes was inadvertently powered. The design of the mechanical switches was found to permit inadvertent ...
      Subject(s) : Design for Manufacturability , Design for Testability , Flight Equipment , Ground Operations , Hardware , Hardware Fabrication and Test , Hardware Safety , Inherited Design , Parts Materials & Processes , Power Switch , Safety & Mission Assurance , Sneak Circuit Analysis (SCA) , Spacecraft , System Development , System Integration and Test , Test & Verification ,

    • NASA-LLIS-1456 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      To ensure more efficient organization of critical telephone and video conferencing capabilities, a conference specialist should be part of the IT start-up team.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Facilities , Information Technology/Systems , Logistics , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0854 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use a separate, hand-operated, spring-loaded, vented regulator in pneumatic system designs to provide reference pressures for pilot controlled pressure regulators. Specify application in ...

    • NASA-STD-7009 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      This standard was developed in response to Action 4 from the 2004 report "A Renewed Commitment to Excellence," which stated the following:
      "Develop a standard for the development, documentation, ...
      Subject(s) : Verification ,

    • NASA-CR-1843 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Appendices on customer utilization of card images and the program listing as used on a CDC 6600 computer are presented. For Cr-1843, see N71-33140.
      Subject(s) : AERODYNAMIC , AIRFOILS , BOUNDARY , CHARACTERISTICS , COMPUTER , DIMENSIONAL , DISTRIBUTION , FLOW , LAYER , PRESSURE , PROGRAMS , SUBSONIC , TWO , VISCOUS ,

    • NACA-RM-A53I17 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1953
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The maneuverability requirements for high-speed, high-altitude missiles have led to the need for knowledge of the aerodynamics of bodies at large angles of attack. Studies of the angle-of-attack characteristics ...

    • NASA-LLIS-0381 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Although measurements at JPL suggested that the Voyager antenna system and its RF probe were not strongly affected by the building environment, the building environment at the test range ...
      Subject(s) : Performance Verification , Test & Verification , Test Facility ,

    • NACA-TN-505 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1934
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The investigation was made to determine the effects of full-span and of partial-span split flaps on the aerodynamic characteristics of a tapered wing. Aerodynamic force tests were made in the N.A.C.A. 7 by 10 foot wind ...

    • NASA-LLIS-0185 

      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 SSME design verification specifications are evaluated by analysis, laboratory testing, subsystem testing, and/or engine hot fire testing. Tests are planned to expose ...
      Subject(s) : Ground Operations ,

    • NASA-LLIS-1244 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Possible deferral of Orbiter Major Modification periods which include significant safety upgrades.
      Subject(s) : Aerospace Safety Advisory Panel , Financial Management , Ground Operations , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft ,

    • NASA-LLIS-0829 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Employ statistical Monte Carlo methods to analyze availability, life cycle cost, and resource scheduling by using the Availability Cost and Resource Allocation (ACARA) program, which is a ...

    • NASA-LLIS-0040 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Space shuttle system design necessitated clearance and weight constraints, which in many cases, made SSME access limited. Workarounds and temporary structures have been ...
      Subject(s) : Facilities , Flight Equipment , Ground Equipment , Ground Operations , Hardware , Human Factors , Launch Vehicle ,

    • NACA-TN-2679 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A theory for the elastic behavior of orthotropic sandwich plates is used to determine the compressive-buckling-lad parameters of flat symmetric corrugated-core. Sandwich plates with simply supported loaded edges and simply ...

    • NASA-LLIS-0977 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In the 1995-1996 timeframe the Office of Safety and Mission Assurance (OSMA) began development of a distance learning capability under the umbrella of the Professional ...
      Subject(s) : Information Technology/Systems , Training Equipment ,

    • NACA-TR-1188 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: SUMMARY
      The concept of indicial aerodynamic functions is applied to the analysis of the short-period pitching mode of aircraft. By the use of simple physical relationships associated with the ...

    • NASA-LLIS-0587 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Recently a "Close Call" involving the unintentional over-pressurization of a low pressure system designed to operate at less than 150 p.s.i.g. The system was opened to a ...
      Subject(s) : Configuration Management , Facilities , Pressure Vessels , Safety & Mission Assurance ,

    • NACA-TN-2146 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1950
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The principal effect of subsonic trailing edges on the damping in roll and pitch of thin sweptback wings in a supersonic stream is evaluated with the aid of some conical and quasi-conical flows previously derived. This ...
      Subject(s) : CONICAL , DAMPING , EDGES , FLOW , LINEAR , PITCH , ROLL , STABILITY , SUPERSONIC , SWEPTBACK , THEORIES , TRAILING , WINGS ,

    • NASA-LLIS-1344 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The Project's formulation phase was predominately accomplished by a small group of research scientists and engineers. Thus, most of their planning and management experience ...
      Subject(s) : Administration/Organization , Aircraft , Configuration Management ,