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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.

Jumpstarter Air Compressor

Discussion about Compressors, hose, pipes, fittings, launchers, release mechanisms, and launch tubes.
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sletts02
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Jumpstarter Air Compressor

Post by sletts02 » Mon Jul 28, 2014 2:55 am

Has anyone tried using a jumpstarter air compressor? They say they can reach 260psi but I have my doubts.

Something like this:

http://www.jaycar.com.au/productView.asp?ID=MB3694

https://www.jbhifi.com.au/gps-car-audio ... sor/98768/

http://www.autobarn.com.au/electus-5-in ... ght-mb3594

It seems like it would solve the compressing and the lack of power source.



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Blenderite
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Re: Jumpstarter Air Compressor

Post by Blenderite » Mon Jul 28, 2014 7:35 pm

Hmm, that would be interesting. Give it a try. One word of caution: I would never recommend that you go past 75% of the rated pressure, just to be safe.


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U.S. Water Rockets1
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Re: Jumpstarter Air Compressor

Post by U.S. Water Rockets1 » Sat Aug 02, 2014 10:45 pm

DogLover wrote:Hmm, that would be interesting. Give it a try. One word of caution: I would never recommend that you go past 75% of the rated pressure, just to be safe.
The biggest enemy of the compressor is HEAT. Make sure you allow time for the compressor to cool off, or add some active cooling to it so it does not overheat. If it gets too hot, it will fail.


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Blenderite
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Re: Jumpstarter Air Compressor

Post by Blenderite » Sun Aug 03, 2014 8:37 am

U.S. Water Rockets1 wrote:The biggest enemy of the compressor is HEAT. Make sure you allow time for the compressor to cool off, or add some active cooling to it so it does not overheat. If it gets too hot, it will fail.
How about submerging it in water? WO:


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U.S. Water Rockets1
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Re: Jumpstarter Air Compressor

Post by U.S. Water Rockets1 » Sat Aug 09, 2014 10:35 pm

DogLover wrote:
U.S. Water Rockets1 wrote:The biggest enemy of the compressor is HEAT. Make sure you allow time for the compressor to cool off, or add some active cooling to it so it does not overheat. If it gets too hot, it will fail.
How about submerging it in water? WO:
You're close! You can coil some copper tube around the metal part of the compressor and flow cool water through the coil. That is an easy way to keep a compressor cool.


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