Model airplane

Details Model airplane Model airplane

1989-06-29

1991-06-25

Hafer, Robert A.

Amusement devices: toys

Aerodynamically supported or retarded

Glider

446 66, A63H 2714, A63H 2700

Patent

active

050263137

ABSTRACT:
A model airplane of the glider or sailplane type made of foamed plastics, comprising rigid stabilizing surfaces and wings and having the bottom side of the fuselage provided with a catapulting hook disposed in the vicinity of the center of gravity in a vertical plane extending through the longitudinal axis of the fuselage, and a sweptback wing profile with a large sweepback and decreasing in thickness and depth from the wing root at the fuselage to the tips of the wing, the connecting lines between the outermost points of the profile sections of the wings having an angle of wing setting .alpha. which increases, with regard to the longitudinal axis LA of the fuselage from wing roots to wing tips.

REFERENCES:
patent: 2275094 (1942-03-01), Taylor
patent: 2373957 (1945-04-01), Hornberger
patent: 2539357 (1951-01-01), Wald
patent: 2664666 (1954-01-01), Walker
patent: 3063191 (1962-11-01), Main
patent: 3246425 (1966-04-01), Miller
patent: 3264777 (1966-08-01), McCreary, Jr.
patent: 3902271 (1975-09-01), Turoff et al.
patent: 4064647 (1977-12-01), Lemelson
patent: 4388777 (1983-06-01), Hermann et al.
patent: 4836817 (1989-06-01), Corbin

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