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

Now showing items 1941-1960 of 3613

    • NASA NASA-LLIS-0265 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Following completion of a repair, a work crew laid a hot cotton tar mop on a piece of roofing insulation material on the roof. Although they doused the mop with water, it ...
      Subject(s) : Fire Protection , Industrial Operations ,

    • NASA-LLIS-0737 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      Use the Ceramics Analysis and Reliability Evaluation of Structures (CARES) computer program to calculate the fast-fracture reliability or failure probability of macroscopically isotropic ...

    • NASA-TN-D-3438 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1956
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Results are presented of a wind-tunnel investigation of the static longitudinal stability and control capabilities of a twin-propeller deflected-slipstream STOL airplane in the take-off and landing speed range through the ...
      Subject(s) : AIRCRAFT , ANGLE , ATTACK , CONFIGURATIONS , CONTROL , LONGITUDINAL , MODELS , POWERED , PROPELLER , SHORT , SLIPSTREAM , SLIPSTREAMS , STABILITY , STOL , TAKEOFF ,

    • NASA-LLIS-1297 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      An on-line project library became an invaluable resource to all project personnel.
      Subject(s) : Administration/Organization , Configuration Management ,

    • NACA-RM-L54H19 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Among the problems that may be encountered during flight at extremely high altitudes is that of maintaining satisfactory stability and control. High angles of attack would be required for trimmed level ...

    • NACA-TR-1206 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1954
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A revised gust-load formula with a new gust factor is derived to replace the gust-load formula and alleviation factor widely used in gust studies. The revised formula utilizes the same principles and retains the same simple ...
      Subject(s) : COMMERCIAL AIRCRAFT , COMPUTATIONAL FLUID DYNAMICS , FORMULAS (MATHEMATICS) , GUST LOADS , MASS RATIOS , TRANSPORT AIRCRAFT ,

    • NASA-TN-D-7890 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1975
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A brief study of the effects of turbofan-engine bypass ratio on Breguet cruise range and take-off distance for subsonic cruise aircraft showed significant differences between short- and long-haul aircraft designs. Large ...
      Subject(s) : AIRCRAFT DESIGN , BYPASSES , FUEL CONSUMPTION , MATHEMATICAL MODELS , RATIOS , SHORT HAUL AIRCRAFT , TAKEOFF , TURBOFAN ENGINES , WEIGHT ANALYSIS ,

    • NASA-LLIS-0333 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1993
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      On the Hubble Space Telescope, the system entered into the Safemode state, and the data to determine why this occurred was not always available in time to evaluate the ...
      Subject(s) : Communication Systems , Flight Equipment , Ground Equipment , Safety & Mission Assurance , Spacecraft ,

    • NASA-LLIS-2217 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2009
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      When NASA contractors and suppliers must host consecutive visits by auditors from different NASA Centers, it may prove unduly burdensome to supplier facility management and promote an inefficient ...
      Subject(s) : 1.Acquisition / procurement strategy and planning , 1.Communications between different offices and contractor personnel , 1.Contractor relationships , 1.Cross Agency coordination , 1.Industrial Operations , 1.Parts , Materials , & Processes , 1.Procurement , Small Business & Industrial Relations , 1.Product Assurance , 1.Quality , 1.Review systems and boards , 1.Safety & Mission Assurance ,

    • NASA-LLIS-1065 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1999
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      Effects of Lack of Knowledge and Experience on Operations.
      Subject(s) : Administration/Organization , Aerospace Safety Advisory Panel , Ground Operations , Human Resources & Education , Policy & Planning , Safety & Mission Assurance ,

    • NASA NPD 1150.11 REV A 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      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.

    • NASA NPR 9501.2 REV E 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      a. This NASA Procedural Requirement (NPR) provides instructions and guidance for the implementation of NASA Policy Directive (NPD) 9501.1I, NASA Contractor Financial Management Reporting System. ...

    • NASA-LLIS-1800 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Improperly cleaned items lead to significant challenges in parts, design, contamination, safety, vendor tasks, parallel work, and flight PRs. Include very specific instructions on ECDR (cleaning ...
      Subject(s) : Integration and Testing , Manufacturing and Assembly , Mission Operations and Ground Support Systems. , Safety and Mission Assurance. ,

    • NASA-TP-3192 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1992
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A three dimensional stress concentration analysis was conducted on straight shank and countersunk (rivet) holes in a large plate subjected to various loading conditions. Three dimensional finite element analysis were ...
      Subject(s) : BEND , CONCENTRATION , COUNTERSINKING , DIMENSIONAL , DISTRIBUTION , ELEMENT , ELEMENTS , FINITE , FORCES , GEOMETRY , HOLE , HOLES , ISOPARAMETRIC , LOAD , MECHANICS , METHOD , MODELS , PERFORATED , PLATES , STRESS , TENSILE , TESTS , THREE ,

    • NACA-RM-A7L11 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1948
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      As a part of a study of the aerodynamic characteristics of a triangular wing of aspect ratio 2.0, the effectiveness of various plain trailing-edge flaps in the transonic speed range has been investigated ...

    • NACA-TR-522 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1936
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: The tests reported in this report conclude the investigation of landing-gear drag that has been carried out in the NACA 20-foot wind tunnel. They supplement earlier tests (reported in Technical Report No. 485) made with ...
      Subject(s) : AERODYNAMIC , BODIES , CANTILEVER , COMPARISON , DRAG , FAIRINGS , GEAR , INTERFERENCE , LANDING , MEMBERS , STREAMLINED , TESTS , TRIPODS , TUNNEL , WHEELS , WIND ,

    • NASA-LLIS-0680 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2000
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Practice:
      This guideline provides checklists taken from Government-Industry Data Exchange Program (GIDEP) files to be used as a measure to avoid commonly experienced problems in transistor-totransistor ...

    • NASA-LLIS-1511 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2003
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      he Orbital Space Plane (OSP) Program took many proactive management steps to increase our emphasis on safety. Safety must be NASA's highest priority.
      Subject(s) : Safety & Mission Assurance ,

    • NASA-LLIS-1728 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      n support of foam redesign options, ET project was required to repeat wind tunnel testing for revised environments. Because data on the original test configuration was sketchy, due in part ...
      Subject(s) : Additional Categories. , Additional Categories.Launch Vehicle , Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Propulsion , Integration and Testing , Manufacturing and Assembly , Missions and Systems Requirements Definition. , Missions and Systems Requirements Definition.Requirements critical to costing and cost credibility , Program Management. , Program Management.Risk management , Safety and Mission Assurance. , Safety and Mission Assurance.Early requirements and standards definition , Systems Engineering and Analysis. , Systems Engineering and Analysis.Long term sustainability and maintenance planning ,

    • NASA-LLIS-1524 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Due to the creation of NGLT as a merger of two different programs, the Program had not fully achieved one integrated master schedule linking all NGLT projects with standardized schedule formats ...
      Subject(s) : Policy & Planning , Program and Project Management ,