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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.

Stability Question

Discussions about rockets, construction materials, adhesives, nozzles, nosecones and fin design.
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retrotec29
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Re: Stability Question

Post by retrotec29 » Tue Sep 04, 2018 2:27 pm

ECCBA108-C337-43CF-8489-6420F90B013F.jpeg


No matter where you go, there you are. Buckaroo Banzai

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Terranoid Labs
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Re: Stability Question

Post by Terranoid Labs » Sat Nov 24, 2018 11:32 pm

It's been a while, life you know gets in the way of rocket science sometimes.

The large version of the fins in the last picture I posted flew to 427 feet, a personal best. The smaller version to 421 feet. Still crashing about 50% of the time, so the number one priority is redesigning the deploy mechanism. Based on some of the footage I've taken, I think it is coming down to the nosecone. It wasn't seating well, plus I'm convinced that the blunt parabola shape is the way to go aerodynamically.

Here's hoping the sparkling water craze continues to give us more sleek bottle designs to test.



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retrotec29
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Re: Stability Question

Post by retrotec29 » Sat Dec 01, 2018 5:19 pm

Been elsware myself for some time. I was working on my high power L2 project this summer. Flight was successful so my attention has returned to the spakeling water puzzle. Weather here has kind of ended flying for the season. I will continue work and update soon.


No matter where you go, there you are. Buckaroo Banzai

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retrotec29
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Re: Stability Question

Post by retrotec29 » Mon Jun 10, 2019 9:30 am

Back at it. Developed a few new ideas for deployment over the winter. Looking to make another attempt next month. Airframe is done. Just adding the bits and pices.


No matter where you go, there you are. Buckaroo Banzai

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