Olin Corporation

Primex Technologies, Inc.

John T McGovern

Ralph F Campoli

Edwin G Steiner

A discardable sabot includes a first support and a second support, aft of the first support. The first and second supports are dimensioned to cooperate with an inner surface of a weapon barrel so as to maintain the saboted projectile substantially centered along the longitudinal axis of the barrel during travel of the projectile from the weapon's chamber to the muzzle. At least one of the supports is a sealing support, configured to provide a substantially gas-tight seal with the barrel and effective to allow the sabot and the projectile to be propelled forward through the barrel by expansion of propellant gas behind the sealing support. The sabot includes surfaces for permitting a flow of a portion of the gas through the sabot while redirecting such portion at least partially transverse to the axis so that the flow applies a torque to the projectile about the axis during travel of the sabot and the projectile between the chamber and muzzle.

Low spin sabot

A sabot segment molding apparatus and a method for molding a sabot segment therein, are provided in which wedge-shaped sections of carbon-fiber plies, impregnated with B-stage epoxy or thermoplastic resin, are stacked in a heated arcuate channel. Pressure is applied to the radial surface of the stack by a compression mechanism acting on a novel hinged wing assembly. The hinge pin is secured coaxially in the channel by a support mechanism, so that no vertical downward force is applied to the stack. Instead, a pair of hinged planar wing members rotate around the hinge pin toward each other, and compress the stack of wedge-shaped sections to the desired arcuate shape. The compressed stack is kept under a desired pressure and temperature for a desired period of time until a suitable 120.degree. sabot segment is formed.

Sabot segment molding apparatus and method for molding a sabot segment

Sabot segment molding apparatus

A cartridge assembly for propelling a subcaliber penetrator through a gun tube which has a portion of the propellant charge contained in an annular cavity surrounding the sabot is disclosed. The annular cavity is defined by the scoop shaped front bourrelet, the aft bourrelet which has three radially extending support posts and bore riding shoes, and a combustible tubular case extension over the aft bourrelet extending forward to the front bourrelet. The assembly includes cartridge case having a multistrand ignition system having a plurality of flexible combustible ignition strand. The strands extend through the propellant charge in the case and extend between the posts of the aft bourrelet into the annular cavity to simultaneously ignite the propellant charge contained therein with the portion of the charge in the cartridge case.

Extended charge cartridge assembly

A cartridge assembly for propelling a subscaliber penetrator through a gun tube which has a portion of the propellant charge contained in an annular cavity surrounding the sabot is disclosed. The annular cavity is defined by the scoop shaped front bourrelet, the aft bourrelet which has three radially extending support posts and bore riding shoes, and a combustible tubular case extension over the aft bourrelet extending forward to the front bourrelet. The assemlby includes cartridge case having a multistrand ignition system having a plurality of flexible combustible ignition strand. The strands extend through the propellant charge in the case and extend between the posts of the aft bourrelet into the annular cavity to simultaneously ignite the propellant charge contained therein with the portion of the charge in the cartridge case.

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Lancaster, PA, United States of America

John T McGovern