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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.

Proposal for competition subcategories

This forum is for non-members to ask questions about our competitions. Please check our FAQ page before you ask.
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Re: Proposal for competition subcategories

Post by WRA2 » Sat Nov 25, 2017 11:57 am

Version 1.2 released with the spelling errors corrected. TH:

Going with the 3% gauge sounds like a good idea to keep the cost down.

Lisa Walker,
:WRA2: Forum Administrator. :WRA2:
:WRA2:The Water Rocket Achievement World Record Association :WRA2:

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