Armor piercing fin-stabilized discarding sabot tracer projectile

Details Armor piercing fin-stabilized discarding sabot tracer projectile Armor piercing fin-stabilized discarding sabot tracer projectile

1993-02-26

1994-03-29

Tudor, Harold J.

Ammunition and explosives

Projectiles

Composite

102513, 102517, 102526, F42B 1406

Patent

active

052974928

ABSTRACT:
An improved small caliber armor piercing projectile (10) having a fin stabilized sub-caliber high density rod penetrator (11) and an adequately large tracer cavity (23). The tracer cavity does not degrade the armor penetrating capability of the projectile. The rod penetrator core is supported structurally during gun launch by a minimum weight segmented sabot (13) which engages the barrel rifling, followed by a segmented plastic obturator (15), followed by a solid plastic obturator ring (17) which provides an uninterrupted gas seal and which holds all segmented components together around the rod penetrator prior to launch. The solid obturator ring is blown apart upon muzzle exit by entrapped propellant gas pressure retained in an internal aft cavity (19). All plastic obturator components are located behind the structural sabot so that the propellant gas pressure will maintain the segmented obturator under hydrostatic compression while in the barrel to ensure projectile inbore stability. Upon muzzle exit, the segmented components freely discard from the flight projectile without introducing trajectory disturbances.

REFERENCES:
patent: 3111902 (1963-11-01), Taylor
patent: 3262391 (1966-07-01), Shober
patent: 3738279 (1973-06-01), Eyre et al.
patent: 3750578 (1973-08-01), Blajda
patent: 4249466 (1981-02-01), Rossmann et al.
patent: 4284008 (1981-08-01), Kirkendall et al.
patent: 4362107 (1982-12-01), Romer et al.
patent: 4372217 (1983-02-01), Kirkendall et al.
patent: 4732086 (1988-03-01), Schiestl et al.

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