Thanks for the link, but they are only a few mm too big. I was thinking of maybe trying to use a capcitor or something that can hold a charge and make it be drawn out somehow? can i use a resistor for that?
I dont expect it to penetrate balsa on its own. I am trying to get a torpedo that small that even moves, as i have yet to see any. Oh, and the tube is already aluminum.
Its actually a barrel for a cheap airsoft gun.
My other two problems right now are:
-Getting a propeller that small
-switch for launching the torp. Ineed a small switch, but at the same time one that can be easily activated from the outside of the torp. I was trying to think of one, hoping magnetic but at that size im not optomistic. Any ideas guys?