Rollable airfoil

Details Rollable airfoil Rollable airfoil

1983-07-01

1984-12-04

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244123, 244219, 52108, 416240, 416142, B64C 356

Patent

active

044859910

ABSTRACT:
A rollable airfoil, and aircraft for utilizing the airfoil. The airfoil is made of an upper skin having a cambered configuration and formed of a material having sufficient elasticity that the camber can be broken and the skin rolled into a coil. The lower skin is straight to provide the desired flat under surface of an airfoil, and to pull the edges of the upper skin towards each other to assist in maintaining the camber. The lower skin is stretchable to allow the upper skin to be flattened for rolling. A filler material, such as an expanded plastic, can fill the space between the upper skin and lower skin to dampen vibration.

REFERENCES:
patent: 1539954 (1925-06-01), Respess
patent: 1947392 (1934-02-01), Guntermann et al.
patent: 2406625 (1946-08-01), Oglesby
patent: 3065799 (1962-11-01), McCarty, Jr.
patent: 3117744 (1964-01-01), Roman
patent: 3298142 (1967-01-01), Isaac
patent: 3300910 (1967-01-01), Isaac
patent: 3386220 (1968-06-01), Staats
patent: 3508587 (1970-04-01), March
patent: 3743440 (1973-07-01), Moore

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