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

Now showing items 501-520 of 3613

    • NASA-LLIS-0913 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Studies have shown that mechanical failures are more frequent and more likely to significantly affect mission success than are electronic failures. Spaceflight mechanisms are usually unique ...
      Subject(s) : design analysis , design margin , failure mechanism , Flight Equipment , Ground Operations , gyros , Hardware , mechanical anomaly , mechanical faults , mechanism design , Parts Materials & Processes , Payloads , Spacecraft , Test & Verification ,

    • NASA-LLIS-0976 

      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 , Policy & Planning , Test & Verification , Training Equipment ,

    • NASA-LLIS-0683 

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

    • NACA-RM-A8C03 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Previous tests of a single vertical tall in combination with an approximately triangular wing (reference1, configurations 7 and 8) have shown marked losses in directional stability at high lift coefficients. ...

    • NASA-LLIS-1739 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      There is an extensive history of resistance thermal device (RTD) failures on NASA and DOD missions due to thermally-induced mechanical stress. Recent MER ground and in-flight failures, including ...
      Subject(s) : Additional Categories.Flight Equipment , Additional Categories.Hardware , Additional Categories.Payloads , Additional Categories.Spacecraft , Additional Categories.Test & Verification , Additional Categories.Test Article ,

    • NASA-TR-R-374 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1971
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Method of lines technique for computing flow field about conical configurations at incidence in supersonic flow
      Subject(s) : CONICAL , DELTA , DIMENSIONAL , DISTRIBUTION , ENTROPY , FLOW , MATHEMATICAL , MODELS , SUPERSONIC , THREE , WINGS ,

    • NASA-LLIS-1528 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Budget errors, omissions, and inconsistencies during formulation, coupled with the need for a focal point to respond to and coordinate with Headquarters Management and Center Chief Financial ...
      Subject(s) : Administration/Organization , Financial Management , Policy & Planning , Program and Project Management ,

    • NASA NPR 1441.1 REV D 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: PURPOSE
      This NPR sets forth the retention periods of Federal records of the National Aeronautics and Space Administration (NASA). This revised edition has been correlated with the Agency Filing Scheme ...

    • NASA-LLIS-0448 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1996
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Recently on a Goddard Space Flight Center (GSFC) spacecraft program, a contractor had concluded successful live fire tests on the EEDs (Electrical Explosive Devices, also ...
      Subject(s) : Energetic Materials - Explosive/Propellant/Pyrotechnic , Energy , Hardware , Test & Verification ,

    • NASA-LLIS-0239 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      During a crane disassembly, a cable sling broke, dropping a 10 ton crane counterweight. The crane crew was removing the front counterweight from the crane to place it on ...
      Subject(s) : Lifting Devices ,

    • NASA-TN-D-7428 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An investigation was conducted in the Langley low-turbulence pressure tunnel to determine the low-speed two-dimensional aerodynamic characteristics of a 17-percent-thick airfoil designed for general aviation applications. ...
      Subject(s) : AERODYNAMIC , AIR , AIRCRAFT , AIRFOILS , AVIATION , CHARACTERISTICS , COEFFICIENTS , DIMENSIONAL , FLOW , GENERAL , TESTS , TUNNEL , TWO , WIND ,

    • NASA-LLIS-1191 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Early on Saturday, April 21, 2001, a pipe in the secondary water system failed in the basement of Buidling 8 at the NASA Goddard Space Flight Center. The primary asset ...
      Subject(s) : Administration/Organization ,

    • NACA-RM-L52K24 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      A general research program is being carried out the Langley high-speed 7- by 10-foot tunnel to determine the aerodynamic characteristics in pitch, sideslip, and steady-roll of various model configurations. ...

    • NASA NPR 7500.1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This document provides guidance for implementing the processes, requirements, and responsibilities of NPD 7500.2, NASA Technology Commercialization Policy. As such, it directly supports the technology transfer and ...

    • NASA-TP-1863 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1981
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Selected mechanical properties of 18 x 5.5 and 49 x 17 size, type 7 aircraft tires were evaluated. The tires were subjected to pure vertical loads and to combined vertical and lateral loads under both static and rolling ...
      Subject(s) : AIRCRAFT TIRES , ANTISKID DEVICES , HYSTERESIS , LANDING GEAR , MECHANICAL PROPERTIES , ROLLING MOMENTS , STATIC LOADS , STRUCTURAL DESIGN CRITERIA , YAWING MOMENTS ,

    • NASA-LLIS-0310 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Mars Observer experienced inertial reference loss on several occasions during its cruise to Mars. These incidents were due to the lack of a detailed code walk-through, and to use of gyro noise ...
      Subject(s) : Attitude Determination , Computers , Flight Equipment , Software , Star Scanner , Test & Verification ,

    • NASA-LLIS-1600 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Mr. Chuck Dorney, P.E., C.S.P. Chief, HQ AFMC/SES and SSEA Team Chief came out on April 19th, 2005 to accomplish the X-45A J-UCAS Hot Refueling System Safety Engineering Analysis (SSEA) for ...
      Subject(s) : Aircraft , Fire Protection , Ground Equipment , Ground Operations , Human Resources & Education , Safety & Mission Assurance ,

    • NASA-LLIS-1041 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2001
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      At approximately 10:30 a.m. on August 26, 2001, gaseous nitrogen (GN2) was erroneously connected to the Gravity Probe-B (GP-B) guard tank vent line as the GP-B Science ...
      Subject(s) : Administration/Organization , Configuration Management , Cryogenic Systems , Ground Equipment , Ground Operations , Human Factors , Mishap Reporting , Payloads , Safety & Mission Assurance , Spacecraft , Test & Verification , Transportation ,

    • NACA-ARR-3F28 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1943
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      In calculating the lateral stability of an airplane, difficulty is often experienced in estimating values of the stability derivative cnr, the rate of change of yawing. moment ...
      Subject(s) : AIRFOILS , CHORD , DRAG , FLAPS , FUSELAGES , HIGH , LATERAL , LIFT , LOW , MIDWING , MOMENTS , MONOPLANES , NACA , OSCILLATIONS , PARTIAL , PROFILE , SPAN , SPLIT , STABILITY , SURFACES , TAIL , VERTICAL , WING , WINGS , YAWING ,

    • NASA-LLIS-0609 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      During the terminal countdown for the first attempted launch of Cassini, spacecraft telemetry channels indicated a false alarm condition that delayed verification of spacecraft readiness for ...
      Subject(s) : Configuration Management , Interface Control , Launch Process , Launch Readiness Review , Operations Readiness Review , Test & Verification ,