| 摘要 |
<p>A training projectile (10) that utilizes flutes (120) or flats (220) to augment roll damping characteristics and thereby cause the projectile to crossover into a gyroscopically unstable trajectory pattern at a predetermined time. Prior to the crossover, the training projectile maintains a gyroscopically stable trajectory, while enables extrapolation to ascertain the trajectory of a non-training projectile that does not have an augmented roll damping section (100). The unstable trajectory pattern substantially reduces the distance the training projectile (10) can traverse, thereby reducing the amount of area required for a training range.</p> |
