A preliminary mission study of a reusable vehicle from staging to orbit indicates payload advantages for a dual-propulsion system consisting of separate scramjet and rocket engines. In the analysis the scramjet operated continuously and the initiation of rocket operation was varied. For a stage weight of 500,000 lb the payload was 10.4 percent of stage weight or 70 percent greater than that of a comparable all-rocket-powered stage. When compared with a reusable two-state rocket vehicle having 50,000 lb payload, the use of the dual propulsion system for the second stage resulted in significant decreases in lift-off weight and empty weight, indicating possible lower hardware costs. (Author)


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    Titel :

    Upper-Stage Space Shuttle Propulsion by Means of Separate Scramjet and Rocket Engines


    Beteiligte:
    L. C. Franciscus (Autor:in) / J. L. Allen (Autor:in)

    Erscheinungsdatum :

    1972


    Format / Umfang :

    51 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch






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