[DavisDad]

I'm toying with the idea of directly propelling the ball with compressed air: a cannon design. Think compressed air potato cannon. A quick calc for a cannon shooting the ball 25' would only require about 2 psi in the accumulator (air reservoir). This does not account for leakage around the ball and that may be a "show stopper". The calcs were based on a cannon only 8" long (same as ball diam) which would allow easy front loading.