Propulsion System Considerations for the Subsonic V/STOL

[+] Author and Article Information
J. D. Cyrus, M. DeVillier, J. Kaminski

Naval Air Development Center, Warminster, Pa.

J. Eng. Power 101(2), 228-232 (Apr 01, 1979) (5 pages) doi:10.1115/1.3446473 History: Received December 14, 1978; Online July 14, 2010


A representative subsonic V/STOL aircraft operating on a single mission has been used as a baseline to investigate the impact of various propulsion system tradeoffs. After establishing a cycle for the propulsion system and estimating V/STOL related installation penalties, parametric engine-aircraft-mission studies have been conducted. These studies have established takeoff gross weight benefits of up to 13 percent that may be obtained by appropriate selection of the core engine sizing location. Studies of two, three and four engine versions of the configuration have shown that three engine and four engine aircraft may have 20 percent lower weight than a two engine version, but this arises at the cost of significantly reduced hot section life.

Copyright © 1979 by ASME
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