http://auto.howstuffworks.com/engine2.htm <br /><br />A pile of fun but don't get caught with one in canada. what I was told anyway.
Ha! Chris..<br />The head mechanic at a marina I worked in 93 made one that would shoot potatoes well over a 10th of a mile out into the puget sound.<br /><br />Ok doing the math... 600+ feet would be about 7 houses ... but it sure was fun watching him fire it off <br /><br />He was using hair spray for fuel.<br />Dont think the new wd40 would work. <br /><br />Iv'e got a small black powder cannon that shoots down rigger balls if that counts <br /><br />Trying to get permission to use it on our 1000 yard range at the gun clubOriginally posted by brother chris:<br /> My buddy has one that can shoot the house 7 doors down(not to say that he does that