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.

:WRA2: NewestWRA2members: :WRA2:

David Currier from Elwood, IN, USA,
Dave Swift from Cortlandt Manor, NY USA,
Silfo from Comodoro Rivadavia, Argentina,
China_WaterRocket from DongGuang, China


Voting to approve the Khairul- SMK Seksyen 24(2) water rocket's Class D record submission of 281.07 feet (85.67 meters) will run March 5th to March 19th.

The submission details can be found here: viewtopic.php?f=24&t=2969

Voting: viewtopic.php?f=24&t=2970&p=19204

Composite pressure vessel

This forum is for non-members to ask questions about our competitions. Please check our FAQ page before you ask.
Stuart Swan
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Composite pressure vessel

Postby Stuart Swan » Sun Aug 18, 2013 2:02 pm

Hi,

We are currently building a water rocket, which we hope to get a new altitude record with (higher than the X-12). The pressure vessel will be made entirely from composite materials. I have read all the rules for the competition, but was still a bit uncertain as to whether the pressure vessel had to be based on PET bottles? Will this rocket allowed in the competition?

Kind regards,
Stuart Swan


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Re: Composite pressure vessel

Postby WRA2 » Sun Aug 18, 2013 2:28 pm

Stuart Swan wrote:Hi,

We are currently building a water rocket, which we hope to get a new altitude record with (higher than the X-12). The pressure vessel will be made entirely from composite materials. I have read all the rules for the competition, but was still a bit uncertain as to whether the pressure vessel had to be based on PET bottles? Will this rocket allowed in the competition?

Kind regards,
Stuart Swan


Hi Stuart,

No, the rocket pressure vessel does not need to be based on PET bottles if you are competing in the "Class A" competition.

http://www.wra2.org/WRA2_Class_A_Rules.php which you seem to be suggesting when you mention the current record held by the X-12 rocket which was flown by US Water Rockets.

but you will need to register your team for membership in the WRA2. :WRA2:

This can be done using our membership application which can be found here:

http://www.wra2.org/WRA2_2013.php membership is free! WO:

If you have already registered, let me know so that I can associate your forum account with your membership application so that you have access to post in the submission forums.

Good Luck! PH:


Lisa Walker,
:WRA2: Forum Administrator. :WRA2:
:WRA2:The Water Rocket Achievement World Record Association :WRA2:
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Spaceman Spiff
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Re: Composite pressure vessel

Postby Spaceman Spiff » Mon Aug 19, 2013 11:57 pm

Stuart Swan wrote:Hi,

We are currently building a water rocket, which we hope to get a new altitude record with (higher than the X-12). The pressure vessel will be made entirely from composite materials. I have read all the rules for the competition, but was still a bit uncertain as to whether the pressure vessel had to be based on PET bottles? Will this rocket allowed in the competition?

Kind regards,
Stuart Swan



Ooh! Sounds cool!

Please stay around and post about your progress! It would be fascinating to see someone else with the technical skills to attempt a record! I'd love to follow your progress!


Spaceman Spiff
"What goes up, must come down"

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