Influence of aerodynamic loads on flight trajectory of spinning spherical projectile

The effect of lift and drag forces and aerodynamic moment on the flight of a spinning projectile in the atmosphere is investigated. The influence of t he spin rate of the projectile on the range and height of flight is also st udied, taking into consideration the progressive decay in the spin rate dur ing the flight. The governing equations of motion of the projectile have be en solved numerically, and the results are presented graphically. The effec t of various parameters such as angle of projection, initial velocity, and spin on the flight of projectiles are plotted. From the results it can be c oncluded that the lift and drag forces and the aerodynamic moment, which ar e dependent on the spin rate of the projectile, influence the range and hei ght of the trajectory significantly. Only planar motion of the projectile i s considered.