July 1953
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A method is presented for evaluating 4 possible types of aircraft accessory power transmission systems; pneumatic, hydraulic, electric, and mechanical. This method is intended for use in deciding which type of accessory transmission system should be used in a given type aircraft. The 4 systems were analyzed on a minimum weight basis. Weights as well as the increase in fuel weight to compensate for power extracted from the engines were considered on the basis of mission profile and power characteristics of the accessory systems.