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

Now showing items 1741-1760 of 3613

    • NASA-LLIS-1127 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Potential Unauthorized Access to Checkout and Launch Control System (CLCS)
      Subject(s) : Aerospace Safety Advisory Panel , Computers , Policy & Planning , Risk Management/Assessment , Security , Software ,

    • NACA-RM-A8F21 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation of an NACA submerged air intake was conducted on a full--scale model of a fighter—type airplane. This study was made to determine the large—scale aerodynamic characteristics of a submerged air ...

    • NASA-LLIS-0689 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Material selection is an important aspect of design. Often the success of the design is critically dependent on a material or materials performing as desired. This is especially true in the ...

    • NACA-TR-661 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1939
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Section characteristics for use in wing design are presented for the NACA 23012 airfoil with plain and split flaps of 20 percent wing chord at a value of the effective Reynolds number of about 8,000,000. The flap deflections ...
      Subject(s) : AERODYNAMIC , AIRFOIL , CHARACTERISTICS , COEFFICIENTS , DRAG , EDGE , FLAPS , LIFT , PROFILES , SPLIT , TESTS , TRAILING , TUNNEL , WIND , WING , WINGS ,

    • NASA-LLIS-1577 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The UPS was in a room that must be accessed by others for reasons other than UPS maintainence. Personnel cannot be expected to be aware of the presence of dangerous high voltage.
      Subject(s) : Facilities ,

    • NACA-RB-3F19 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1943
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In conjunction with the control-surface investigation by the National Advisory Committee for Aeronautics, the available data on unshielded horn balances have been summarized herein. The purpose of this ...

    • NASA-TM-X-3292 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1975
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results of 1/3-octave-band spectral measurements of internal pressures and the external acoustic field of a tangentially blown rectangular cavity are compared. Proposed mechanisms for sound generation are reviewed, and ...
      Subject(s) : AERODYNAMIC , BACKGROUND , CAVITIES , DATA , FAR , FIELDS , FLOW , GENERATORS , INTERNAL , NOISE , PRESSURE , SOUND , SPECTRA , TABLES , VELOCITY ,

    • NASA NPD 1280.1 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD is applicable to NASA Headquarters (HQ) and NASA Centers, including Component Facilities and Technical and Service Support Centers. This NPD also applies to the Jet Propulsion ...

    • NACA-TN-3394 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Wind-tunnel tests wee conducted to ascertain the total-pressure recovery of a circular nose inlet utilizing various shapes of inlet lips. The tests were conducted at a free-stream Mach number of 0.237 with inlet flows ...

    • NASA-CR-213199 VOL 5 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The objectives of the program were to develop computational fluid dynamics (CFD) codes and simpler industrial codes for analyzing and designing advanced seals for air-breathing and space propulsion engines. The CFD code ...
      Subject(s) : COEFFICIENTS , COMPUTATIONAL FLUID DYNAMICS , FLOW DISTRIBUTION , LABYRINTH SEALS , LEAKAGE , MODULES , ROTOR DYNAMICS , STIFFNESS , THREE DIMENSIONAL FLOW ,

    • NASA-LLIS-0745 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On January 4, 1995, at approximately 8:50 a.m., two technicians at WSTF were overcome and collapsed from breathing in an oxygen deficient atmosphere that formed during ...
      Subject(s) : Cryogenic Systems , Emergency Preparedness , Environment , Facilities , Ground Operations , Hazardous/Toxic Waste/Materials , Human Factors , Personal Protective Equipment , Policy & Planning , Risk Management/Assessment , Safety & Mission Assurance , Test Facility ,

    • NASA-STD-8739.8 W/CHG 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This standard specifies the software assurance requirements for software developed or acquired and maintained by the National Aeronautics and Space Administration (NASA) and for open source software, Government off-the-shelf ...

    • NASA-LLIS-0506 

      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 1-28-93, during normal testing in the Model Preparation Area (MPA) of the 16' Transonic tunnel, oil from a turboprop simulator model was vented into the atmosphere. The ...
      Subject(s) : Hazardous/Toxic Waste/Materials , Occupational Health , Test Facility ,

    • NACA-TN-D-8361 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1976
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was conducted in the Langley low turbulence pressure tunnel to determine the effects of wing leading edge radius and Reynolds number on the longitudinal aerodynamic characteristics of a series of highly ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANGLE , ATTACK , CHARACTERISTICS , DESIGN , EDGE , LEADING , LONGITUDINAL , MACH , NUMBER , PLANFORMS , PROFILES , REYNOLDS , STABILITY , SUPERSONIC , SWEEP , SWEPT , WING , WINGS ,

    • NASA-LLIS-1341 

      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 was required to develop and deliver a major scientific instrument. However, the team was predominately made up by a small group of research scientists and ...
      Subject(s) : Risk Management/Assessment ,

    • NACA-RM-L9B02 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1949
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The problem of securing adequate lateral control for high-speed aircraft employing sweptback wings requires careful consideration for both the high-speed and the low-speed flight conditions. An investigation ...

    • NACA-TM-1382 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The problem of a jet-propelled airplane held in a steady turn is treated both in the very general case and also in the particular case when the polar curve can be approximated by a parabola. Once the general solution has ...

    • NASA-LLIS-4556 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The Constellation Program spanned many NASA Centers. NPR 1440.6 requires Center Directors to "Ensure implementation of effective records management programs at their Centers", which new Programs that reside at the center ...

    • NASA-N69-14762 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1968
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Systematic wind tunnel investigations of vortex breakdown have been conducted on sharp-edged delta and modified delta wings with sweep angles from 45° to 850 at Reynolds numbers of about 1 x 106, ...

    • NASA-LLIS-0356 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      A failure shortly after launch in the honeycomb shroud (nose cone) structure, due to a lack of proper venting, caused Mariner '64 mission failure. Analyze the pressure profiles that the ...
      Subject(s) : Environment , Materials , Outgassing , Parts Materials & Processes , Test & Verification ,