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    Is Hydraulics Out of this World?

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    The role of hydraulic power in the control of high-speed aerodynamic vehicles has been quite thoroughly explored [1,2]. Hydraulic hazards encountered as the aircraft wends its way through the thermal thicket have become familiar to most practitioners of the art of aircraft hydraulic power system design. However, the effects of the next environment—space—impose many new problems. Unfortunately, high temperatures will still be present upon occasion. However, the additional exigencies of space flight may make other problems of greater importance. Indeed, a legitimate question might be raised as to whether hydraulic power, in its present form, has a proper place on a true space vehicle. In order to understand the tasks to be assigned to the power control system in space, a short study of space problems is worthwhile. The types of space travel, in the order of expected occurrence are: (1) ballistic, (2) orbital, and (3) interplanetary.

    Author Information:

    Keller, George R.
    Chief, Sales Engineering, Autonetics, A Division of North American Aviation, Inc., Downey, Calif.

    Committee/Subcommittee: D02.N0

    DOI: 10.1520/STP46318S