Patent ID: 6502786
Filing Date: 2003-01-07
Classification: F42B

Abstract:
A 2-D projectile trajectory corrector system for improving the trajectory of a spin stabilized artillery projectile after launch, the projectile being tracked after launch by a tracking system, comprising:a range adjustment system located within the spin stabilized artillery projectile, wherein said range adjustment system includes a plurality of radially deployable aerodynamic surfaces which increase drag by extending generally perpendicular to a central axis of the spin stabilized projectile, said aerodynamic surfaces have an arcuate structure with a pivot point integral to the projectile and a hook end which engages a corresponding groove integral to the projectile for a maximum deployment position, said aerodynamic surface actuated by a pyrotechnic piston which drives it from a recessed disposition to an exposed aerodynamic disposition, each aerodynamic surface further including an interim setting for providing an initial correction vector and a final, fully deployed setting for a residual correction vector; a deflection adjustment system located within the spin stabilized artillery projectile; and a command module disposed within the spin stabilized artillery projectile and operably coupled to the range adjustment system and the deflection adjustment system.