RE: Powering aircraft carrier
This will cost you a $1000. A 6 feet long ship will be slow, clumsy, and won't handle current, waves or wind. Try this: get three RTR boats on ebay, put a catapult on one, airsoft gun on the other. Forget launching rockets from an rc boat it's illegal in the USA. Have you and two of your friends battle it out. For airsoft gun, buy an electric airsoft pistol and mount it inside the boat or buy a hen long tank, take the top off and put on the boat. Connect servo/switch to trigger. Use water biodegradable bbs.