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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

Wide-range universal launcher

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
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anachronist
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Re: Wide-range universal launcher

Post by anachronist » Thu Aug 09, 2018 11:46 am

Yes, a one-way valve would help. I bore out the end of my tube and put a ball in it (like a glass marble), then trap the ball with a coat hanger wire across the top, making sure the wire doesn't poke out beyond the walls of the tube.



cprobertson1
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Re: Wide-range universal launcher

Post by cprobertson1 » Fri Aug 10, 2018 2:21 am

anachronist wrote:
Thu Aug 09, 2018 11:46 am
Yes, a one-way valve would help. I bore out the end of my tube and put a ball in it (like a glass marble), then trap the ball with a coat hanger wire across the top, making sure the wire doesn't poke out beyond the walls of the tube.
Nice! I was thinking along the lines of using the ball from an old mouse: marbles are easier to get in bulk though!



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