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

Now showing items 601-620 of 3613

    • NACA-TN-4172 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1958
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Overall sound-pressure levels and frequency spectra have been obtained under static conditions from a modified supersonic propeller designed to operate efficiently at a high forward speed without the high noise levels ...

    • NASA/CR-1999-209002 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The Advanced Subsonic Technology Noise Reduction Program goal is to reduce aircraft noise by 10 EPNdB by the year 2000 relative, to 1992 technology. The improvement goal for nacelle attenuation is 25 relative to 1992 ...
      Subject(s) : ACOUSTIC , AIRCRAFT , ATTENUATION , DUCTS , ENGINES , IMPEDANCE , LINING , LININGS , NACELLES , NOISE , PROCESSES , REDUCTION , SPECTRA , TURBOFAN ,

    • NASA-LLIS-0137 

      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 4-ton monorail crane is used to handle flight related equipment and flight hardware in the operations and checkout building. The crane operator is not able to control ...
      Subject(s) : Ground Operations , Industrial Operations , Lifting Devices ,

    • NASA-LLIS-1144 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Potential International Space Station (ISS) Supportability Problems With Existing Extravehicular Activity (EVA) Assets.
      Subject(s) : Aerospace Safety Advisory Panel , Extra-Vehicular Activity , Flight Equipment , Logistics , Medical , Policy & Planning , Research & Development , Safety & Mission Assurance ,

    • NASA-LLIS-5099 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Federally mandated IT security requirements when implemented through the Constellation Program requirements process failed to capture scope and intent of higher level requirements.

    • NASA NPR 5810.1 W/CHG 2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      The purpose of this NPR is to establish a standard announcement format for NASA announcements that may result in the award of a grant or cooperative agreement.
      Applicability ...

    • NASA-TM-X-2555 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1972
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Wind-tunnel measurements of the aerodynamic damping and oscillatory in pitch and yaw for a 1/22-scale model of a proposed carrier-based variable-sweep fighter airplane have been made by using a small-amplitude forced-oscillation ...
      Subject(s) : AIRCRAFT , ANGLE , ASSEMBLIES , ATTACK , DAMPING , FIGHTER , MODELS , STABILITY , SWEEP , TAIL , TUNNEL , VARIABLE , WIND , WINGS ,

    • NASA-LLIS-0695 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      This guideline describes the general criteria and methodology for the development of thermal models for predicting temperatures of spacecraft, instruments and other spaceflight hardware.

    • NASA-LLIS-1586 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      NGLT experienced continual disagreement over processes, procedures and products to be used by the Program»s SE&A teams, all of which came from different legacy programs, each possessing ...
      Subject(s) : Administration/Organization , Financial Management , Policy & Planning , Program and Project Management , Research & Development , Risk Management/Assessment ,

    • NACA-TR-703 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1940
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An aid in airplane design, charts have been prepared to show the effects of wing taper, thickness ratio, and Reynolds number on the spanwise location of the initial stalling point. Means of improving poor stalling ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , CHARTS , COMPUTATION , DESIGN , DRAG , NUMBER , PROFILES , RATIO , REYNOLDS , STALLING , SWEPT , THICKNESS , WING , WINGS ,

    • NACA-WR-L-339 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An analysis has been made to determine the probable aerodynamic section characteristics of a plain flap with various arrangements of an internal balance. Tests in two-dimensional flow have been made in the NACA 4- by 6-foot ...

    • NASA-LLIS-0900 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Schedules that had been agreed, on closer examination, turned out to mean something different than parties expected; design loads presented to NASA for use in designing a ...
      Subject(s) : External Relations ,

    • NACA-TN-3583 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1955
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Mass flow and momentum for various fractions of a turbulent boundary layer are presented in chart form for a range of velocity profiles and for Mach numbers from 0.2 to 5.0. These charts are intended to assist the analyst ...

    • NASA-SP-5073 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1969
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Runway and highway pavement grooving and traction studies
      Subject(s) : AIRPORTS , AUTOMOBILE ACCIDENTS , BRAKING , NASA PROGRAMS , PAVEMENTS , SKIDDING , SURFACE FINISHING , SURFACE ROUGHNESS EFFECTS , UNITED KINGDOM ,

    • NASA-LLIS-0462 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Motor information was routinely tabulated during the manufacture of solid rocket motors. This information was furnished by the motor vendor (or obtained by resident ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Parts Materials & Processes ,

    • NASA-LLIS-1349 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      In early February 2003, JPL and NASDA reported gaps in Level 0 data products received from the Wallops and Alaska ADEOS-II Data Processing Systems. Gaps in the SeaWinds ...
      Subject(s) : Ground Equipment , Ground Operations , Test & Verification ,

    • NACA-TN-2836 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A study is presented of the geometric configuration factors required for computing radiant heat transfer between opaque surfaces separated by a nonabsorbing medium and various methods of determining the configuration factors ...
      Subject(s) : ABSORPTION , AIRCRAFT ENGINES , ANALYSIS (MATHEMATICS) , CONFIGURATIONS , COOLING , CYLINDERS , EMISSIVITY , GAS TURBINE ENGINES , GASES , RADIATIVE HEAT TRANSFER , RECTANGLES , ROTOR BLADES (TURBOMACHINERY) , SURFACE GEOMETRY , TRIANGLES ,

    • NASA-CR-2334 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A research program has been conducted to determine the degree of cruise drag correlation on the C-141A aircraft between predictions based on wind tunnel test data, and flight test results. Information is presented on the ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANALYSIS , CORRELATION , CRUISING , DRAG , FLIGHT , MODELS , PERFORMANCE , PREDICTION , TECHNIQUES , TESTS , TUNNEL , WIND ,

    • NASA-LLIS-4588 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: During the Constellation Program, the process for identification and management of technical products within the Technical Baseline was a manual process within the Windchill environment. The Technical Baseline contents ...

    • NASA-LLIS-3316 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Locksets for construction projects should be chosen based on what is being used at the project's location/center, rather than assuming that what is being at the home center will suffice.
      Subject(s) : Acquisition / procurement strategy and planning , Communications between different offices , Facilities , Maintenance , Program Management - Cross Agency coordination , Security , Systems Requirements Definition - Requirements critical to costing and cost credibility ,