Finned projectile with supplementary fins

Details Finned projectile with supplementary fins Finned projectile with supplementary fins

1990-08-14

1991-08-20

Carone, Michael J.

Aeronautics and astronautics

Missile stabilization or trajectory control

Externally mounted stabilizing appendage

244 33, F42B 1018

Patent

active

050407465

ABSTRACT:
A finned projectile intended to be launched toward a target has a project body and a plurality of main fins attached to the projectile body to provide stability thereto in flight. In the preferred embodiment, each main fin includes a supplementary fin movably secured thereto for increasing the overall surface area to further enhance the stability of the projectile after launch. A pin and channel arrangement is used for slidably retaining the supplemental fin and the main fins together for deployment under forces on the projectile during launch and flight thereof. The channel arrangement further includes a portion which angles suddenly to lock the supplementary fin in the deployed position. The preferred embodiment also includes putty disposed within the channel for preventing deployment of the supplementary fin during normal handling of the projectile. The putty is shattered upon initial impact with the pin during launching of the projectile.

REFERENCES:
patent: 1276892 (1918-08-01), Fender
patent: 3165281 (1965-01-01), Gohlke
patent: 3304030 (1967-02-01), Weimholt et al.
patent: 3633846 (1972-01-01), Biggs
patent: 4209146 (1980-01-01), Mattson
patent: 4440360 (1984-04-01), Hallstrom
patent: 4641802 (1987-02-01), Zalmon et al.
patent: 4667899 (1987-05-01), Wedertz

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