Air refueling boom pivot gimbal arrangements

Details Air refueling boom pivot gimbal arrangements Air refueling boom pivot gimbal arrangements

1977-06-13

1978-12-12

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Fuel supply

141387, B64D 3900

Patent

active

041292707

ABSTRACT:
An aerial refueling boom utilized in the transfer of fuel from a tanker airplane to a receiver airplane and more particularly, to the boom geometry or gimballing which comprises an axis fixed with respect to structure of the tanker airplane about which the boom rotates in elevation and an inclinable axis about which the boom rotates for lateral movement. The angle of inclination of the boom lateral motion pivot axis or azimuth axis varies with respect to the longitudinal axis of the airplane axis as the boom is changed in elevation angle. A pair of aerodynamic surfaces formed into a Vee and known as ruddevators are mounted towards the trailing end of the boom for flying the boom about these axes. The ruddevators are part of a control system which includes a pantographing cable system for automatically changing the angle-of-attack of the aerodynamic surfaces and for alleviating the air loads imposed by the receiver airplane when it is imparting the movement of the boom during the refueling engagement. The boom support system includes articulation which provides for combining a certain amount of boom rolling action with sideward movement of the boom and varies the ratio between the degree of roll motion vs. the degree of azimuth, as the boom is raised and lowered during changes in elevational angles while operating within the normal ranges of the refueling disconnect envelope.

REFERENCES:
patent: 2663523 (1953-12-01), Leisy
patent: 2859002 (1958-11-01), Leisy
patent: 2960295 (1960-11-01), Schulze
patent: 3067972 (1962-12-01), Mosher
patent: 3091419 (1963-05-01), Mosher
patent: 4072283 (1978-02-01), Weiland

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