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

Now showing items 1481-1500 of 3613

    • NASA-LLIS-1510 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      An operational focus was applied by aligning operations equivalent to engineering in the organization and keeping flight, ground, and integrated operations engaged throughout the development. ...
      Subject(s) : Communication Systems ,

    • NASA-TN-D-217 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1960
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A low-speed investigation was made in the Langley 300 MPH 7- by 10-foot tunnel of the static longitudinal and lateral stability characteristics of an airplane model with multiple bodies and of a conventional (single-fuselage) ...
      Subject(s) : AIRCRAFT , AIRFOIL , ANGLE , ATTACK , BODY , CONFIGURATIONS , DIMENSIONAL , LATERAL , LONGITUDINAL , MODELS , MOMENTS , PITCHING , PROFILES , STABILITY , SWEPT , TAIL , TESTS , THREE , TUNNEL , WIND , WING , WINGS ,

    • NASA-CR-2760 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1977
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Pure tone sound absorption coefficients were measured at 1/12 octave intervals from 4 to 100 KHz at 5.5K temperature intervals between 255.4 and 310.9 K and at 10 percent relative humidity increments between 0 percent and ...
      Subject(s) : ABSORPTIVITY , ATMOSPHERIC ATTENUATION , BANDWIDTH , BROADBAND , COMPUTATION , FREQUENCY RANGES , GRAPHS (CHARTS) , HIGH FREQUENCIES , NOISE SPECTRA , SOUND TRANSMISSION , TRANSMITTER RECEIVERS ,

    • NASA-LLIS-0494 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1989
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On January 25, 1984, the National Geotechnical Centrifuge, located at NASA Ames Research Center, experienced a catastrophic failure of the 18,000 horsepower drive motor ...
      Subject(s) : Configuration Management , Logistics , Safety & Mission Assurance , Test Facility ,

    • NASA-LLIS-0266 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A K-Seal drawing and manufacturing instruction specified measurement of inner and outer diameters, but no measurement of the K-Seal legs. Following the failure of a batch ...
      Subject(s) : Flight Equipment , Ground Operations , Hardware , Safety & Mission Assurance ,

    • NASA-TN-D-4083 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1967
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation at low speeds over a still and a moving ground plane was made to determine the effects of ground proximity on the longitudinal aerodynamic characteristics of a model of a transport airplane. The four-engine ...
      Subject(s) : AERODYNAMIC , AIRCRAFT , ANGLE , ATTACK , BLOWING , BOUNDARY , CHARACTERISTICS , CONTROL , EFFECT , FLAPPING , GROUND , LAYER , LOW , MODELS , SPEED , TRANSPORT ,

    • NASA-LLIS-1327 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Due to the number of deviations (changes) and hardware and software complexities within the procedures, the practitioners' written testing procedures constantly change ...
      Subject(s) : Ground Operations , Human Factors ,

    • NACA-RM-L54I13 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Two-dimensional cascade data obtained in a porous-wall test facility are extensively used in the design of axial-flow compressors. Since the flow in axial-flow compressors is three-dimensional, a correlation ...

    • NACA-TR-1274 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Several recent advances in plane subsonic flow theory are combined into a unified second-order theory for airfoil sections of arbitrary shape. The solution is reached in three steps: the incompressible result is found by ...
      Subject(s) : AERODYNAMICS , AIRFOIL PROFILES , AIRFOILS , ANGLE OF ATTACK , APPROXIMATION , COMPRESSIBILITY EFFECTS , COMPUTATIONAL FLUID DYNAMICS , FLOW CHARACTERISTICS , INTEGRALS , LEADING EDGES , SUBSONIC FLOW , THICKNESS RATIO , THIN AIRFOILS ,

    • NASA-TR-R-358 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Stress intensity factor calculated for cracked sheet with riveted and uniformly spaced stringers.
      Subject(s) : CRACK PROPAGATION , FATIGUE (MATERIALS) , METAL SHEETS , RIVETS , SIMULTANEOUS EQUATIONS , STIFFENING , STRESS DISTRIBUTION , STRINGERS ,

    • NASA-LLIS-0334 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The S-II stage of saturn had a very intriguing and baffling series of POGO or forced oscillation response culminating in the near disastrous AS-508 flight. The oscillation ...
      Subject(s) : Hardware , Research & Development , Safety & Mission Assurance ,

    • NASA-LLIS-2256 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      As the desired crack detection size is decreased and approaches the physical limitations of liquid penetrant inspection techniques, the approach of performing a probability of detection (POD) ...
      Subject(s) : Additional Categories.Pressure Vessels ,

    • NASA-LLIS-1066 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Finding and Reporting of Mishaps and "Close Calls".
      Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Ground Operations , Human Resources & Education , Policy & Planning , Safety & Mission Assurance ,

    • NASA NPR 8510.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      a. This NASA Procedural Requirement (NPR) implements applicable requirements for the Cultural Resources Management (CRM) Program under NASA Policy Directive (NPD) 8500.1, NASA Environmental ...

    • NASA NPR 8705.6 REV B 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This NASA Procedural Requirements (NPR) document establishes requirements for conducting audits, reviews, and assessments to verify compliance with applicable Federal, State, and local safety ...

    • NASA-LLIS-1398 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Serious damage to an instrument's heater control electronics resulted from incorrect wiring within the interface harness. Efforts to expedite the I&T schedule, incomplete documentation and ...
      Subject(s) : Administration/Organization , Configuration Management , Hardware , Program and Project Management , Risk Management/Assessment , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NACA-RM-A7L16 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      One of the major problems involved in the use of swept wings is the provision of adequate lateral control, especially at high lift coefficients. The experimental data of reference I indicate that the ...

    • NASA-LLIS-0681 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)

    • NASA-LLIS-1732 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Following the repair of a forklift, a 100% load test was being performed with 4,995 pounds of weight.
      The weight configuration consisted of a large metal weight of 4,745 pounds and several ...
      Subject(s) : Additional Categories. , Additional Categories.Lifting Devices ,

    • NASA-LLIS-1525 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The NASA F-15 Intelligent Flight Control System (IFCS) project team has developed a series of flight control concepts designed to demonstrate the benefits of a neural network-based adaptive ...
      Subject(s) : Aircraft ,