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  • ASTRONAUTICS (GENERAL)  (4)
  • AIRCRAFT STABILITY AND CONTROL  (1)
  • 1990-1994  (5)
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  • 1990-1994  (5)
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  • 1
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    The manned transportation system study - Defining human pathways into space (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Substantiating data developed by a NASA-industry team (NIT) for subsequent NASA decisions on the 'right' set of manned transportation elements needed for human access to space are discussed. Attention is given to the framework for detailed definition of these manned transportation elements. Identifying and defining architecture evaluation criteria, i.e., attributes, specified the amount and type of data needed for each concept under consideration. Several architectures, each beginning with today's transportation systems, were defined using representative systems to explore future options and address specific questions currently being debated. The present solutions emphasize affordability, safety, routineness, and reliability. Key issues associated with current business practices were challenged and the impact associated with these practices quantified.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AIAA PAPER 92-1701
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Defining the manned transportation system strategy for the United States (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Recent work completed by a NASA-Industry Team designed to identify the requirements for the U.S. manned transportation system (MTS) is presented. This MTS study was designed to address important outstanding issues concerning present systems and what the configuration and capabilities of a new manned vehicle should be. The rigorous process developed is measurable and repeatable and helps define a coherent and integrated strategy for which space launch vehicle concepts can be defined for future manned transportation to space.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: IAF PAPER 92-0853
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    The Manned Transportation System Study - Attributes and their measurements (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Attention is given to the Manned Transportation System (MTS) Study, initiated to help identify the 'right' transportation system architectures needed for human access to space. A listing of the requirements used for this study and the rationale behind them are given. Attributes allow comparison of elements that meet the requirements and the 'needs' (mission model). The attributes include: safety, probability of mission success, funding profile, architecture cost risk, schedule confidence, dependability, availability, mission growth potential, environment, resiliency, and alternate access. The attributes need to be measurable, to have repeatable calculations and well-defined assumptions, to have their weight determined relative to other attributes, and to be a discriminator. The process used to determine the attributes, which involved the MTS team forum and some of the quality function deployment techniques, is discussed.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AIAA PAPER 92-1703
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Architecture options for the Manned Transportation Systems Study (1992)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The Manned Transportation System (MTS) Study has constructed a comprehensive set of transportation architectures, using current and possible vehicle systems to address specifically a series of considerations which focus and guide what the future transportation architectures should be. Payload manifesting ground rules are presented to illustrate the present approach in establishing flight rates from the MTS mission models. Manned system flight rates and relative personnel safety characteristics differences are presented.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: AIAA PAPER 92-1704
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 5
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    Launch-pad abort capabilities of the HL-20 lifting body (1994)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The capability of the HL-20 lifting body to perform an abort maneuver from the launch pad to a horizontal landing was studied. The study involved both piloted and batch simulation models of the vehicle. A point-mass model of the vehicle was used for trajectory optimization studies. The piloted simulation was performed in the Langley Visual/Motion Simulator in the fixed-base mode. A candidate maneuver was developed and refined for the worst-case launch-pad-to-landing-site geometry with an iterative procedure of off-line maneuver analysis followed by piloted evaluations and heuristic improvements to the candidate maneuver. The resulting maneuver demonstrates the launch-site abort capability of the HL-20 and dictates requirements for nominal abort-motor performance. The sensitivity of the maneuver to variations in several design parameters was documented.
    Keywords: AIRCRAFT STABILITY AND CONTROL
    Type: NASA-TM-4550 , L-17330 , NAS 1.15:4550
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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