Welcome to the Water Rocket Forum, sponsored by The Water Rocket Achievement World Record Association.

Since our founding in 2003, we've become the largest, most sophisticated and ground breaking group supporting you, the serious water rocket flyer! Whether you are a beginner or an expert, the WRA2 has something for everyone.

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.


Hello Everyone. It is that time of year again. Time to approve changes to the competition rules for the new year.

You Can vote at:
viewtopic.php?f=32&p=19486#p19486

Please take the time to vote. TH:

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:
http://www.wra2.org/WRA2_New_Class_Draft.php

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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