Pocket structure for a foldable wing of an aircraft

Details Pocket structure for a foldable wing of an aircraft Pocket structure for a foldable wing of an aircraft

1983-10-24

1984-12-04

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Fuel supply

244 46, 244130, B64C 340, B65D 3704

Patent

active

044859937

ABSTRACT:
The pocket structure for a foldable wing of an aircraft, especially a high erformance aircraft, is constructed at least partially of flexible material forming a completely closed volume with an inward fold for receiving a wing portion. The fold divides the closed volume into two portions which are interconnected outside the reach of the fold to form an auxiliary fuel tank for the aircraft. The pocket structure has sealing lips extending along both of its outwardly facing side walls. The sealing lips are constructed as two bellows which are filled with a gas under pressure. Thus, the lips perform two functions. First, the lips seal a zone below the wing from a zone on top of the wing to maintain the pressure difference. Second, the lips strengthen and protect the outwardly facing side walls of the wing pocket structure forming an auxiliary fuel tank. The pocket also performs two functions, namely, the wing receiving function and the tank function.

REFERENCES:
patent: 2806665 (1957-09-01), Gibson
patent: 4214721 (1980-07-01), Burhans, Jr. et al.

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