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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.

Altimeters info?

Discussion about deployment systems including altimeters, timers, air speed flaps, servo systems, and chemical reactions.
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Altimeters info?

Post by Brian » Sun Feb 10, 2008 1:52 am

does anyone Know where to get 1 cheaply or how to make 1?

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Post by WRA2 Admin » Sun Feb 10, 2008 11:03 am

Altimeters are expensive ($60 - $100 USD) and we recommend that you get your deploy system working reliably before attempting to fly one. We have a competition that does not require the use of altimeters if you are interested.


David Walker
The Water Rocket Achievement World Record Association

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