Accession Number : ADD015188

Title :   Expendable Breech Gun Round.

Descriptive Note : Patent, Filed 28 Oct 75, patented 12 Nov 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Moscrip, William M

Report Date : 12 Nov 1991

Pagination or Media Count : 5

Abstract : A round for an expendable breech gun wherein a filament reinforced breechcase is lined with propellant throughout its length whereby the burning rate of the propellant in effect varies with projectile speed within the breechcase. A metal or plastic honeycomb bonded to the inner wall of the breechcase provides mechanical support for the propellant and precludes axial progression of the flame front in advance of the projectile. An alternative construction employs a propellant lining having a succession of increasing burning rates from the breech end to the muzzle end of the breechcase.

Descriptors :   BREECH MECHANISMS, BURNING RATE, EXPENDABLE, FLAMES, GUN MUZZLES, GUNS, HONEYCOMB STRUCTURES, INTERNAL, LININGS, MECHANICAL PROPERTIES, PLASTICS, PROJECTILES, PROPELLANTS, VELOCITY, WALLS

Subject Categories : Guns

Distribution Statement : APPROVED FOR PUBLIC RELEASE