초록 ▼

A range correction module which is designed to fit onto a spin stabilized ballistic projectile for correcting range error. The range correction module is a self-contained module within the fuze which screws into the forward portion of the projectile. The range correction module is designed such that

A range correction module which is designed to fit onto a spin stabilized ballistic projectile for correcting range error. The range correction module is a self-contained module within the fuze which screws into the forward portion of the projectile. The range correction module is designed such that changes are not required to the existing projectile. During the course correction phase, semi-circular plates will deploy from the module. The plates create a blunt cross-sectional area in front of the projectile, thus creating more drag and effectively slowing the projectile.

대표청구항 ▼

[ What is claimed is:] [1.] A device to control the range of trajectory of a spin stabilized projectile having an aft body and a fuze located in the nose of the projectile comprising:a projectile launched from a gun tube that is stabilized by spin;an add-on drag producing module removably located in

[ What is claimed is:] [1.] A device to control the range of trajectory of a spin stabilized projectile having an aft body and a fuze located in the nose of the projectile comprising:a projectile launched from a gun tube that is stabilized by spin;an add-on drag producing module removably located in the forward portion of said projectile between the aft body of said projectile and the fuze of said projectile;said module having attachment means on either end designed to mate with said fuze and said projectile such that said module can be attached to said projectile at a time prior to launch of said projectile by removing the fuze from said projectile, attaching one end of said module to said projectile body, and then re-attaching said fuze to the other end of said module;said module also comprising means for extending into the airstream a plurality of flat planar tab-like projections such that said flat planar tab-like projections are extended into the airstream such that the surface having a greater cross-sectional area of each tab-like projection is perpendicular to said airstream thereby creating an overall blunt cross sectional area in the forward portion of said projectile immediately behind said fuze so as to create drag on said projectile and to slow said projectile during flight and thereby alter the trajectory of said projectile;wherein the means for extending is a rotatable cam plate within said module.