X-15 Research Vehicle Auxiliary Power System 650829

The auxiliary power system of the X-15 airplane represents a uniqueness in its application. It must operate continuously in flight, in a space environment, during zero gravity, during reentry heating, and for a period of time which often exceeds the X-15 rocket engine operation by 1400 sec. The X-15 auxiliary power system must provide both hydraulic and closely regulated 400-cycle electrical power for operation of various X-15 systems. This paper describes the system, its functions, and its major components. A brief introduction to an X-15 research mission is included to illustrate the integration requirements of the auxiliary power system to the X-15 and the research system.


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