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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.

New Pump

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
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Blenderite
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New Pump

Post by Blenderite » Fri Jul 27, 2012 1:52 pm

I just got a new bike pump from a local bike shop. This is the one I got: http://www.artscyclery.com/descpage-8462.html and intend to test it tomorrow. I already did a bench test, which I got up to 120 psi. I am quite pleased, personally. With my other pumps I only got it 80 psi before they blew.

-DogLover


-Blenderite

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U.S. Water Rockets1
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Re: New Pump

Post by U.S. Water Rockets1 » Sat Jul 28, 2012 10:22 pm

DogLover wrote:I just got a new bike pump from a local bike shop. This is the one I got: http://www.artscyclery.com/descpage-8462.html and intend to test it tomorrow. I already did a bench test, which I got up to 120 psi. I am quite pleased, personally. With my other pumps I only got it 80 psi before they blew.

-DogLover
Let us know if the pump requires a lot of effort to pump. We're looking for a good pump to recommend to scouts which are in the 8-10yr old range. It would be great to find one that did not require a huge person to operate.


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Blenderite
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Re: New Pump

Post by Blenderite » Mon Jul 30, 2012 3:34 pm

The new pump is wonderful! I got it up to 125 psi with a bit of effort. This specific pump is made special so that it is easier to pump at higher pressures. I think it might have been harder for us because there were only 3 of us pumping, and I was the rocket retriever so I had just ran after the rocket. That probably made it a little harder for me. I think it would be a good pump for a scout between 8-10 as long as there was more than two or three to help pump. One thing is that it doesn't have a highly impressive volume, but it works. We are highly considering getting a cheap tire pump just to fill the volume and then use the floor pump to increase the pressure. Overall, this is a spectacular pump!!! I would recommend this one.

-DogLover


-Blenderite

Check out my YouTube channel: https://www.youtube.com/c/Blenderite

"Get it right, then go for GREATNESS!"

Willem
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Re: New Pump

Post by Willem » Wed Aug 01, 2012 5:12 am

If someone is interested, I am using the SKS Rennkompressor bicycle pump, it goes up to 230 PSI (16 bar). I'm not sure if it is available in the USA but it is in Europe.



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