Method and arrangement for fluidborne vehicle propulsion and dra

Aeronautics and astronautics – Aircraft power plants – Arrangement

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244 56, B64D 2716

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active

060826703

ABSTRACT:
A method and arrangement for propelling fluidborne vehicles is disclosed that results in reduction in the overall form drag of certain classes of vehicles. The method and arrangement consists of using a propulsion system with an inlet that circumscribes the transition region between a forebody section containing the widest part of the vehicle and a tapered afterbody section of the vehicle to remove fluid from the viscous boundary layer that is generated by the forward portion of the vehicle, and accelerates this boundary layer fluid through a propulsion system in the afterbody portion of the vehicle. Removal of boundary layer fluid can reduce momentum losses which occur in the wake created by various classes of vehicles.

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