Design features and performance of the Shuttle main engines first flight are presented. Each of the three engines produces 470,000 lb of thrust, operates at 3,012 psia, and has a 77.5 to 1 nozzle expansion ratio. The engines are designed for a 7.5 hr operational life, and will be tested at 109% capacity in future Shuttle flights. The developmental program is outlined, and includes 127,000 sec of operational testing on 19 engines. Engine operations and components are described, noting 100% burning of the hydrogen and oxidizer, high pressure fuel turbopumps, the controller assembly, etc.; details of solutions to fatigue failures and subsequent certification are provided. The nine minute first flight firing revealed a radiant heating of a control sensor transducer, which was shielded for succeeding flights. Alternatives are given for thrust augmentation, for which each 1% yields an additional 800 lb payload increase capability, and can be implemented by 1987.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Space Shuttle main engine performance assessment - Columbia's first flight


    Beteiligte:

    Kongress:

    Flight Testing Conference ; 1981 ; Las Vegas, NV


    Erscheinungsdatum :

    01.11.1981


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Spaceship Columbia's first flight

    Young, J. W. / Crippen, R. L. | NTRS | 1981



    Space Shuttle main engine progress through the first flight

    Johnson, J. R. / Colbo, H. I. | NTRS | 1981


    Columbia's first flight shakes down space transportation system

    Garrett, D. / Young, D. / White, T. | NTRS | 1981