
342 Ballistics: Theory and Design of Guns and Ammunition
11.2 Dynamic Imbalance
The diagram of Figure 10.2 represents the most common case of a projectile asymmetry, a
dynamic imbalance. In this case, a lateral throwoff effect as described in Section 11.1 will
result as the projectile leaves the muzzle of the gun and there will also be signicant ight
dynamic effects as the projectile moves downrange. Usually, this mass asymmetry is small
and can be treated as a small amount of mass removed from or added to a projectile at a
point dened by a radial set of coordinates from the CG. We shall use the former approach
following the development o