Returning flying ring toy

Details Returning flying ring toy Returning flying ring toy

1991-11-27

1993-05-25

Muir, D. Neal

Amusement devices: toys

Aerodynamically supported or retarded

Spinning disc

446 66, 273426, A63H 2700, A63B 6508

Patent

active

052135390

ABSTRACT:
A returning flying ring toy (10) of modified triangular-ring planform and an improved airfoil comprising an abrupt transition (49) on the upper surface (15-46,48), near the trailing edge (33).

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Frisbee Brand; Wham-O-Rang Instructions (1983).
Bluebird; Whizzback Instructions (1987).
Hartmann, Photograph of "Handmade triangular plywood boomerang".
Edward Edelson, Popular Science, "Lord of the Rings", Sep. 1986, pp. 94-95.
Science Magazine, "Ringing in a World Record", Spring 1985.
J. Anderson, "Introduction to Flight", McGraw-Hill Book Co., 1978, p. 154.
I. Abbott et al., "Theory of Wing Selections", Dover Pub., Inc. 1949, pp. 188-193.
R. Von Mises, "Theory of Flight", Dover Pub., Inc., 1945, pp. 156-157.

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