I'm pretty new to this forum but have loved sciences if all kinds since I was young and plan to get into nuclear engineering after high school. Back on topic, I have made a rocket launcher out of pvc pipe that is powered by an air compressor. Ranging from 60-120 psi propelling my paper rocket...
Air compressor is most expensive part but before I get you guys worked up over it, find out if anyone has access to a drill and drill bits and a set of automotive taps. If you have access to those, ask people in club if they do if not talk to automotive teacher about it. Because if you have to...
Do you have an air compressor or access to one? Spud guns are fun but here's an idea that's better. It's an air compressor powered rocket launcher that will launch rockets made of paper. If you're interested I can tell you the parts you need. It shoots them good 100 feet depending on compressor...