Extended range of fin stabilized projectile using movable canards

Abstract

The purpose of this study is to investigate the range extension capability for fin stabilized projectile using movable canard lifting surfaces. Performance evaluation of the advanced projectile in atmospheric flight is demonstrated using a six degree of freedom simulation model. Through comparison studies, the maximum range is shown to be extended by nearly double by commanding a full authority pitch maneuver at the trajectory's maximum altitude. A parametric analysis varying launch angle, canard deflection angle and canard lifting surface area are presented. Another analysis has been carried out for canards deployment times that verified the maximum extended range using simulation. In addition, the influence of the canards deflection rate on the projectile aerodynamic angle is demonstrated.