Hang glider

Details Hang glider Hang glider

1976-12-27

1977-09-27

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 16, 244DIG1, B64C 340

Patent

active

040506541

ABSTRACT:
A foot-launched passenger carrying wing capable of flight including a frame, a flexible wing covering the frame, a keel, a bracket slidable on the keel, cross brace members pivotally attached to the bracket at one end and to leading edge members of the frame at the other end, and cables connecting the parts to provide an operative structure when the bracket is moved in one direction to extend the frame into flying condition and to collapse the frame when the bracket is moved in the opposite direction. Movement of the bracket also adjusts the billow of the sail and the dihedral of the frame. The wing sail is attached to the leading edge members along their entire length and to the keel along a portion of the rearward end thereof. An arrangement is provided to adjust the bracket before or during flight to provide different billow and dihedral conditions.

REFERENCES:
patent: 989786 (1911-04-01), Lee et al.
patent: 3507150 (1970-04-01), Stengel
patent: 3936012 (1976-02-01), Murray
Hewes, "Free-Flight Investigation of Radio-Controlled Models with Parawings" NASA TN D-927, Sept. 1961.

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