Catapult for ballistic experiments.

This catapult has a scientific background. It shows the effect on the range of a projectile, depending on the angle under which the projectile is fired. In this way the catapult can be optimized for the purpose. The base frame has a row of holes in which an M3 bolt can be pushed which will stop the lever. By using one of the other holes, the stopping angle is changed. The catapult is powered by two rubber bands. A trigger button is provided to make firing easier.