Thomas E Jeter

US Patent:

43145108, Feb 9, 1982

Filed:

Jan 28, 1980

Appl. No.:

6/115819

Inventors:

Thomas R. Jeter - Bel Air MD
William F. Donovan - Aberdeen MD

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

F42B 316

US Classification:

102523

Abstract:

Spin is imparted to a projectile within a smooth-bore barrel through the of a projectile-sabot system. The sabot, which substantially encloses the projectile, has a forward flange section which includes a plurality of nozzles which cause the sabot to operate as a centrifugal turbine. The sabot has grooves or slots on interior and/or exterior surfaces which fracture under the centrifugal forces which exist when the projectile-sabot system exits the smooth-bore barrel, thereby permitting the sabot to separate from the projectile after the desired spin has been imparted to the projectile.