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

Now showing items 41-60 of 3613

    • NASA-LLIS-1956 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2008
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Jerry Madden, the former Associate Director of Flight Projects at NASA Goddard Space Flight Center (GSFC), collected 122 lesson learned nuggets from a variety of sources that are instructive ...
      Subject(s) : Additional Categories. , Additional Categories.Financial Management , Additional Categories.Risk Management/Assessment , Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Software Engineering , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Integration and Testing , Program Management. , Program Management.Affect of Cultural factors on long-term human and robotic missions , Program Management.Business processes , Program Management.Center distribution of programs and management activities , Program Management.Communications between different offices and contractor personnel , Program Management.Configuration and data management , Program Management.Contractor relationships , Program Management.Cross Agency coordination , Program Management.Program level review processes , Program Management.Program planning , development , and management , Program Management.Risk management , Safety and Mission Assurance. , Safety and Mission Assurance.Early requirements and standards definition , Safety and Mission Assurance.Quality , Safety and Mission Assurance.Review systems and boards ,

    • NASA-LLIS-0606 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1998
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      A four inch-diameter cast iron strainer in a 225 psig steam line failed catastrophically, releasing high pressure steam and hurling strainer pieces and attached parts in ...
      Subject(s) : Facilities , Parts Materials & Processes , Pressure Vessels , Safety & Mission Assurance ,

    • NASA NPR 7120.8 W/CHG 3 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2013
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Purpose
      This document establishes the program and project management requirements by which NASA will formulate and execute research and technology (R&T), consistent with the governance model contained ...

    • NASA-LLIS-0684 

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

    • NACA-RM-A8D02 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1949
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      The theory developed in reference 1 indicates that aircraft employing wings of high sweepback and high aspect ratio should be capable of efficient flighty (L/D =10) at moderate supersonic Mach numbers. To ...

    • NASA-LLIS-1743 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2006
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      Mars Exploration Rover met and exceeded mission requirements despite a largely single string spacecraft architecture. Balance the risk of a single string flight system with effective risk ...
      Subject(s) : Additional Categories. , Additional Categories.Environment , Additional Categories.Flight Equipment , Additional Categories.Flight Operations , Additional Categories.Hardware , Additional Categories.Payloads , Additional Categories.Risk Management/Assessment , Additional Categories.Software , Additional Categories.Spacecraft , Additional Categories.Test Facility , Engineering Design (Phase C/D). , Engineering Design (Phase C/D).Lander Systems , Engineering Design (Phase C/D).Robotics , Engineering Design (Phase C/D).Spacecraft and Spacecraft Instruments , Missions and Systems Requirements Definition. , Missions and Systems Requirements Definition.Level 0/1 Requirements , Missions and Systems Requirements Definition.Planetary entry and landing concepts , Missions and Systems Requirements Definition.Requirements critical to costing and cost credibility , Program Management. , Program Management.Acquisition / procurement strategy and planning , Program Management.Contractor relationships , Program Management.Program planning , development , and management , Program Management.Risk management , Safety and Mission Assurance. , Safety and Mission Assurance.Early requirements and standards definition , Safety and Mission Assurance.Reliability , Systems Engineering and Analysis. , Systems Engineering and Analysis.Mission and systems trade studies , Systems Engineering and Analysis.Mission definition and planning ,

    • NASA-LLIS-1529 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2004
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      When a GSE power meter registered zero due to an AC power glitch, the test monitoring and control software interpreted this as a loss of power and increased the test level past the maximum ...
      Subject(s) : facility power , fault protection , Flight Operations , Ground Equipment , Hardware , High Power RF Breakdown Facility , Payloads , power limits , RF breakdown , RF test , Software , Spacecraft , Test & Verification , Test Article , test failure , test overstress , test software , test-induced failure ,

    • NASA-TR-R-428 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1974
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A method for determining the lift, drag, and pitching moment for wings which have separated flow at the leading and side edges with subsequently reattached flow downstream and inboard is presented. Limiting values of the ...
      Subject(s) : AERODYNAMIC , BOUNDARY , CHARACTERISTICS , COEFFICIENTS , CONTROL , EDGES , FLIGHT , FLOW , LAYER , LEADING , REATTACHED , RECTANGULAR , SEPARATION , SPEED , SUBSONIC , WINGS ,

    • NACA-TN-2288 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1951
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Comparisons of the low-Speed experimental lift and hinge-moment parameters of flapped lifting surfaces with and without sweepback with values computed by several theoretical procedures are presented. Based on these limited ...
      Subject(s) : AIRFOILS , BALANCED , CHARACTERISTICS , DISTRIBUTION , ELEVATORS , FLAPS , GAP , HINGE , HORIZONTAL , LIFT , LIFTING , MOMENTS , NACA , SEALED , SPAN , SURFACE , SURFACES , SWEPTBACK , TAIL , THEORIES , WING ,

    • NASA-HDBK-8739.23 W/CHG 1 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2011
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: This Handbook will provide an overview of complex electronics, the design process, and assurance activities. It discusses:
      • Which devices are "complex electronics," and which are not.
      • What each ...

    • NASA-LLIS-0449 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1990
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      APU 2 Fuel Pump Heater was cycling high during flight. Detailed analysis of the thermal switch showed extreme wear from the switch bi-metal disc and case. Large amounts ...
      Subject(s) : Hardware , Parts Materials & Processes , Test & Verification ,

    • NASA-LLIS-0241 

      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 125 pound per square inch pressure air line in a ground trench, used to supply test facilities, failed by splitting along the longitudinal weld. The 10 inch diameter ...
      Subject(s) : Pressure Vessels ,

    • NASA-TN-D-7429 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1973
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An experimental study of surface pressure distributions on a family of blunt and sharp large angle cones was made in hypersonic flows of helium, air, and tetrafluoro-methane. The effective isentropic exponents of these ...
      Subject(s) : AERODYNAMIC , BLUNT , BODIES , CHARACTERISTICS , COEFFICIENTS , CONICAL , DISTRIBUTION , DRAG , FLOW , GASES , HYPERSONIC , PRESSURE , REAL ,

    • NASA-LLIS-1265 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2002
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Description of Driving Event:
      While testing at Mach 0.8 in the 16-ft Transonic Tunnel, a full-scale F-15 inlet model separated from the sting. The model traveled downstream and impacted the catch screen ...
      Subject(s) : Test Facility ,

    • NACA-RM-L52L05 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1952
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: INTRODUCTION
      Considerable research in recent years has been carried on for the purpose of improving the low-speed longitudinal stability of sweptback wings. Most of this work has been concerned with delaying the tip ...

    • NASA NPD 8800.14 REV D 

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

    • NASA-LLIS-4876 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2012
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: A logistics organization uses foundational data elements to produce products such as Logistics Support Analyses. Using a common data infrastructure, such as Source Maintainability & Recoverability (SMR) code charts for all ...

    • NASA-TP-1917 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1981
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: An experimental investigation was conducted to evaluate cornering characteristics of the 32 x 8.8 nose gear tire of the space shuttle orbiter. Data were obtained on a dry concrete runway at nominal ground speeds ranging ...
      Subject(s) : AERODYNAMIC CHARACTERISTICS , AERODYNAMIC LOADS , COEFFICIENT OF FRICTION , GROUND SPEED , LANDING GEAR , MECHANICAL PROPERTIES , NOSE TIPS , SPACE SHUTTLE ORBITERS ,

    • NASA-LLIS-0311 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;1994
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The high rate data channel for ATMOS failed. No complete end-to-end test had been performed either prior to or after the flight. The recommendations point out the need for end-to-end testing ...
      Subject(s) : Test & Verification ,

    • NASA-LLIS-1605 

      Type: standard
      Source: NASA - National Aeronautics and Space Administration (NASA):;2005
      Organization : NASA - National Aeronautics and Space Administration (NASA)
      Abstract: Abstract:
      The incentives for private industry to develop one of a kind space vehicles does not encourage them to use their top resources.
      Subject(s) : Procurement , Program and Project Management , Risk Management/Assessment , Small Business & Industrial Relations ,