Patent ID: 7416154

Claim:
A trajectory correction kit (TCK) to neutralize the perturbations in the trajectory of a rocket upon launch so as to enable the rocket to impact on a pre-selected target more accurately, said correction kit being externally mounted on the rocket, between the tailfins and the end of the body of the rocket, and comprising: a plurality of thrusters, said thrusters being deployed around the circumference of the rocket; a control computer coupled to said thrusters, said computer activating particular thrusters from time to time to effect pre-calculated trajectory correction; an angular rate sensor to sense the motion of the rocket and measure any pitch and yaw rates of the rocket in flight and input said rates to said control computer, said computer using said rates to calculate the trajectory correction required to eliminate said measured pitch and yaw; at least one battery pack to provide power to said control computer and angular rate sensor; a baseplate to support thereon said thrusters, rate sensor, computer and battery pack; and a means for mounting said correction kit onto the rocket.