Patent ID: 8316773
Filing Date: 2012-11-27
Classification: F42B

Abstract:
1. A sub-caliber projectile of the fin-stabilized type having a sabot and a penetrator linked together by means for shape matching, said means for shape matching incorporating a first profile machined at a bore of said sabot and cooperating with a second profile on said penetrator, each of said first and second profiles having a shape according to a section in an axial plane that alternates teeth and grooves, wherein the grooves in the sabot define housings for said teeth of said penetrator, wherein said means for shape matching include a front part, a median zone and a rear part, wherein, at a mean temperature there is axial play between one of said teeth of said penetrator and one of said housings which play is variable along a longitudinal axis of the projectile, in said front part and in said rear part, and the axial play increases from said median zone of said sabot toward both a front end between and a rear end of the sabot.