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  • Other Sources  (4)
  • 1985-1989  (2)
  • 1970-1974  (2)
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  • 1
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    Heat flow calorimeter (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Heat flow calorimeter devices are used to measure heat liberated from or absorbed by an object. This device is capable of measuring the thermal output of sealed nickel-cadmium batteries or cells during charge-discharge cycles. An elongated metal heat conducting rod is coupled between the calorimeter vessel and a heat sink, thus providing the only heat exchange path from the calorimeter vessel itself.
    Keywords: GENERAL
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    ERTS-1 - Toward global monitoring. (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-08-13
    Description: The satellite has a near-polar orbit with a mean altitude of about 547 n. mi. On the average six million square kilometers are mapped daily. The multispectral scanner and other essential systems on board the satellite have suffered no detectable degradation since the early failures of a circuit switch and one of the two tape recorders. A year of ERTS-1 experience has shown that many applications can be mechanized with the present instrumentation. New investigations planned for future satellites are discussed, giving attention to pollution monitoring, geological studies, heat-balance surveys, and the analysis of damage caused by storms and earthquakes.
    Keywords: GEOPHYSICS
    Type: Astronautics and Aeronautics; 11; Sept
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Space Shuttle development (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-08-28
    Description: The technical-planning and decision-making processes involved in the initiation of the NASA Space Shuttle program in 1970-1972 are briefly discussed, responding to the critical evaluation of Logsdon (1986). The complex nature of the interactions among White House, OMB, DOD, and NASA; the difficulty of making long-term commitments under the U.S. system; the positive technological achievements of the program; and the need for unemotional evaluation of the policy options available after the loss of the Challenger are stressed. In a reply by Logsdon, it is argued that the structuring of the policy process itself and the presentation of the Shuttle to Congress as a relatively inexpensive routine launch system for virtually all government needs were directly related to its failure to gain continuing full funding from Administrations and Congress. It is suggested that a strong proposal of bold scientific and exploratory objectives for the space program could be more successful in gaining such long-term support.
    Keywords: ADMINISTRATION AND MANAGEMENT
    Type: Science (ISSN 0036-8075); 233; 263
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Reusable space systems (Eugen Saenger Lecture, 1987) (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-08-27
    Description: The history and current status of reusable launch vehicle (RLV) development are surveyed, with emphases on the contributions of Eugen Saenger and ongoing NASA projects. Topics addressed include the capabilities and achievements of the Space Shuttle, the need to maintain a fleet with both ELVs and RLVs to meet different mission requirements, the X-30 testbed aircraft for the National Aerospace Plane program, current design concepts for Shuttle II (a 1000-ton fully reusable two-stage rocket-powered spacecraft capable of carrying 11,000 kg to Space Station orbit), proposals for dual-fuel-propulsion SSTO RLVs, and the Space Station Orbital Maneuvering Vehicle and Orbital Transfer Vehicle. The importance of RLVs and of international cooperation in establishing the LEO infrastructure needed for planetary exploration missions is stressed.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: Zeitschrift fuer Flugwissenschaften und Weltraumforschung (ISSN 0342-068X); 12; 1-5
    Format: text
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    NASA TECHNICAL REPORTS
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