Retractable wing kite

Details Retractable wing kite Retractable wing kite

1981-07-10

1983-06-21

Frankfort, Charles E.

Aeronautics and astronautics

Kites

A63H 2708

Patent

active

043890326

ABSTRACT:
A kite made of sheet foam material with a hinged airfoil which is resiliently biassed closed, or flat, and constructed so that it is opened by the wind, the amount of opening depending on the strength of the wind; the preferred embodiment includes a keel where the connection between the keel and the airfoil is made by thrusting rods through holes in the keel and holes are reenforced with a bent stiffening member.

REFERENCES:
patent: 1028409 (1912-06-01), Westerman
patent: 1354728 (1920-10-01), de Crequy
patent: 1831247 (1931-11-01), Hitt
patent: 2520704 (1950-08-01), Wisney
patent: 3022966 (1962-02-01), Briggs
patent: 3110460 (1963-11-01), Koonce et al.
patent: 4119283 (1978-10-01), De Yarman

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