The Space Shuttle Orbiter auxiliary power units (APUs) provide hydraulic power for the Orbiter vehicle control surfaces (rudder/speed brake, body flap, and elevon actuation systems), main engine gimbaling during ascent, landing gear deployment, and steering and braking during landing. Operation occurs during launch/ascent, in-space exercise, re-entry/descent, and landing/rollout.Operational effectiveness of the APU is predicated on reliable, failure-free operation during each flight, mission life (reusability) and serviceability between flights (turnaround). The flight data from the Orbiter Flight Tests (STS-1 through-4) is presented along with improvements to ensure that these long-run objectives are achieved.


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    Title :

    Space Shuttle Orbiter Auxiliary Power Unit Flight Performance


    Additional title:

    Sae Technical Papers


    Contributors:
    Weary, D. (author) / Baughman, J. (author) / Wicklund, L. (author) / McKenna, R. (author)

    Conference:

    Aerospace Congress and Exposition ; 1982



    Publication date :

    1982-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Space Shuttle Orbiter Auxiliary Power Unit

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    Space Shuttle Orbiter Auxiliary Power Unit Status

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