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

Now showing items 3081-3100 of 3613

    • NACA-TN-801 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1941
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Several arrangements of round and flat spanwise spoilers attached to the upper surface of a tapered wing were tested in the NACA 19-foot pressure wind tunnel to determine the most effective type, location, and size of ...

    • NASA-LLIS-1229 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      While performing electrical checkout of a newly manufactured electronic component, erratic highcurrent measurements were noticed. Some technicians in the area believed ...
      Subject(s) : Configuration Management , Energy , Flight Equipment , Ground Equipment , Hardware , Industrial Operations , Parts Materials & Processes , Policy & Planning , Safety & Mission Assurance ,

    • NACA-RM-L9D06 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1949
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The importance of obtaining adequate lateral control for airplanes incorporating sweptback wings has led the NACA to engage in an extensive program of lateral-control research on various sweptback-wing ...

    • NASA-TN-D-3953 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1967
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Local heat transfer and static pressure data for steam condensation in vertical downflow tube.
      Subject(s) : CONDENSATION , HEAT TRANSFER , HEAT TRANSFER COEFFICIENTS , STATIC PRESSURE , STEAM ,

    • NASA-LLIS-0069 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Employees were checking for correct phase rotation on cross-hinds AC receptacle. One employee attempted to manually twist a receptacle with a screwdriver. During this ...
      Subject(s) : Hardware , Parts Materials & Processes ,

    • NASA-TN-D-1259 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1962
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A simple engineering method is presented for predicting the strength of notched parts made from wrought aluminum alloys under static loading or under repeated loading near the fatigue limit. Assumed to be known are tensile ...
      Subject(s) : ALUMINUM ALLOY , ALUMINUM ALLOYS , CRACKS , ELONGATION , MODULUS OF ELASTICITY , NOTCH STRENGTH , STATIC LOADS , STRESS-STRAIN DIAGRAMS , TENSILE PROPERTIES , WROUGHT ALLOY , WROUGHT ALLOYS ,

    • NASA-LLIS-1000 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1997
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Leaking Reaction Control System (RCS) Thruster Valves.
      Subject(s) : Aerospace Safety Advisory Panel , Ground Operations , Hazardous/Toxic Waste/Materials , Logistics , Research & Development , Safety & Mission Assurance , Spacecraft , Test & Verification ,

    • NACA-TN-2795 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An analysis has been made to give a qualitative picture of the effects of wing sweep on the upwash at the propeller planes of multi-engine airplanes. The method used in this analysis is, in general, the same as that given ...

    • NASA-TN-D-7173 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A study was made to determine the effects of specimen thickness on fatigue crack growth and fracture behavior of 7075-T6 and 7178-T6 aluminum alloy sheet and plate. Specimen thicknesses ranged from 5.1 to 12.7 mm (0.20 to ...
      Subject(s) : ALUMINUM ALLOYS , CRACK PROPAGATION , FATIGUE (MATERIALS) , FATIGUE TESTS , FRACTURE STRENGTH , METAL SHEETS , STRESSES , THICKNESS ,

    • NASA NPR 3600.2 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2010
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      a. NASA's Telework Program is designed to provide employees and managers with flexible work arrangements by which employees perform their assigned duties at home or other approved worksite and ...

    • NASA-LLIS-0628 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During the STS-90 flight, two of the internal air circulation fans within the Research Animal Holding Facility (RAHF) failed to operate. To successfully complete the ...
      Subject(s) : Flight Equipment , Hardware , Payloads , Research & Development , Safety & Mission Assurance , Test & Verification ,

    • NASA-LLIS-1458 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Ground rules, methods, and equipment for witness interview transcription, review, and revision should be established up front to preclude subsequent issues.
      Subject(s) : Accident Investigation , Administration/Organization , Computers , Configuration Management , Information Technology/Systems , Logistics , NASA Standards , Policy & Planning , Safety & Mission Assurance ,

    • NASA-LLIS-0856 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      The SOFIA B747 upper rudder was dropped after it was removed from the tail of the aircraft and was in the process of being placed on a flat bed trailer.
      Maintenance ...
      Subject(s) : Aircraft , Ground Operations , Hardware , Lifting Devices ,

    • NACA-WR-L-701 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1942
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      At the request of the Army Air Forces, Materiel Command, tests have been made in the Langley two-dimensional low-turbulence pressure tunnel of a model of the NACA 66,2-116, a = 0,6 airfoil section representing ...
      Subject(s) : AIRFOILS , BALANCED , BELL , CHAR , DIM , DISTRIBUTION , DRAG , FLAPS , HINGE , LOW , MOMENTS , NACA , PRESSURE , SLOT , SLOTTED , TESTS , TUNNEL , TURBULENCE , WIND , WING , WINGS ,

    • NASA-CR-2214 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1977
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: High-lift systems for a NASA, 9.3%, method for calculating the viscous flow about two-dimensional multicomponent airfoils was evaluated by comparing its predictions with test data. High-lift systems derived from supercritical ...
      Subject(s) : AIRFOILS , BOUNDARY , CONTROL , DIMENSIONAL , EDGE , LAYER , LEADING , LIFT , SLATS , SUPERCRITICAL , TESTS , TUNNEL , TWO , WAKES , WIND , WINGS ,

    • NASA NPD 9710.1 REV V 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: APPLICABILITY
      This NPD applies to NASA Headquarters and NASA Centers, including Component Facilities and Technical and Service Support Centers.

    • NACA-RM-A53J23 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The potentialities of turbine-propeller propulsion systems are well recognized, particularly with regard to the take-off and range capabilities of multiengine airplanes. The combination of a turbine-propeller ...

    • NASA-LLIS-0383 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1995
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Galileo AACS checksum errors resulted from bus contentions caused by noise from electromagnetic coupling within the AACS intra-subsystem harness. Recommendations included simulations and other ...
      Subject(s) : Circuit Noise , Hardware , Test & Verification ,

    • NASA-LLIS-0187 

      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 ET vent line may not be secured because the deceleration unit latch mechanism fails to latch. This mechanical malfunction of the latching mechanism, possibly resulting ...
      Subject(s) : Hardware , Launch Process ,

    • NACA-TN-555 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1936
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Systematic flight investigation of the spinning characteristics of various airplanes over a period of several years have given the pilots engaged in the testing a varied and extensive experience. From this experience certain ...