Drogue assembly for in-flight refueling

Details Drogue assembly for in-flight refueling Drogue assembly for in-flight refueling

1999-11-29

2000-11-14

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Fuel supply

244113, 244142, 244152, B64D 3700

Patent

active

061457884

ABSTRACT:
A drogue assembly (10) for in flight refueling includes a circumferenal array of triangular support arms which carry a drogue parachute (29) which extends circumferentially around their shorter sides. Each support arm is pivoted and mounted on a pivot pin (19) at its apex for pivotal movement in a radial direction. At least alternate ones of the support arms carry leaf springs which extend into pockets (51) formed in the drogue parachute (29). The leaf springs act on the drogue parachute (29) in opposition to air pressure loading on it in flight so that it tends to increase the chord angle of the drogue parachute (29) from the leading edge. Hence the effective area of the drogue parachute in flight is varied automatically above a certain predetermined minimum which depends on the dimensions of the trailing edge so it is reduced as air speed is increased and vice versa.

REFERENCES:
patent: 2823881 (1958-02-01), Patterson
patent: 2946543 (1960-07-01), Gordon et al.
patent: 3048357 (1962-08-01), Loedding
patent: 3098630 (1963-07-01), Connors
patent: 5255877 (1993-10-01), Lindgren et al.
patent: 5427333 (1995-06-01), Kirkland

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