Projectile

Details Projectile Projectile

1979-10-15

1983-04-12

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Stabilized by rotation

F42B 1514

Patent

active

043795315

ABSTRACT:
A method of imparting a rotational motion to a projectile in a firearm barrel by flow of propellant gases within surfaces of the rear area of the projectile into pressure relieving chambers opening into the barrel bore along it length, each chamber allowing the propellant gases to impart an impulse to the rotational motion of the projectile, the projectile seals the bore past each chamber to prevent the escape of propellant gases so that the full volume of the gas is retained to propel the projectile until it leaves the barrel; and after the projectile has left the barrel the rear surfaces act with atmospheric air flow to increase tangential drag to reduce the effect of gyroscopic spin overstabilizing forces to provide increased range and accuracy.

REFERENCES:
patent: 1450558 (1923-04-01), Maze
patent: 2742821 (1956-04-01), Sweetman
patent: 3059367 (1962-10-01), Rosebush
patent: 3483794 (1969-12-01), Packard
patent: 4176487 (1979-12-01), Manis

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