Controllable hose-and-drogue in-flight refueling system

Aeronautics and astronautics – Aircraft structure – Fuel supply

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B64D 3900

Patent

active

053260520

ABSTRACT:
An in-flight hose-and-drogue refueling system has the capability of steering the drogue using four thrusters which are energized by pressurized air. The system measures the drogue's 3-dimensional position relative to either the refueling aircraft or the probe on the receiver aircraft. A control system utilizes the measurements of the drogue's 3-dimensional position to activate the thrusters so as to either minimize the excursions of the drogue due to turbulence, thus enabling easier hook-up, or alternatively, to track the receiver's probe and automatically guide and contact the drogue to the probe.

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Rayment In-Flight refueling apparatus (U.K. Patent Application 2 237 251), May 1991.
Ward, Dead Reckoning Optoelectronic Intelligent Docking System (WO87/02797), May 1987.

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