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Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: Killjoy » Wed Mar 28, 2007 11:09 pm

First the mythbusters got a 5 gallon jug to 90 psi before it ruptured.
second, i would not recomend one for a pneumatic (i tryed and it burst between my legs), however it should be fine for a combustion.
Third, duct tape is a gift from god and in large quanties is extremely hard to destroy or tear.
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Unread postAuthor: paaiyan » Wed Mar 28, 2007 11:11 pm

Killjoy wrote:First the mythbusters got a 5 gallon jug to 90 psi before it ruptured.
second, i would not recomend one for a pneumatic (i tryed and it burst between my legs), however it should be fine for a combustion.
Third, duct tape is a gift from god and in large quanties is extremely hard to destroy or tear.


Though I commend you on your praise of duct tape, what in the name of God were you doing holding a thin-walled, highly pressurized tank between your legs?
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Unread postAuthor: noname » Wed Mar 28, 2007 11:13 pm

Trying to get rid of his use for condoms. What else?
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Unread postAuthor: nate_003 » Wed Mar 28, 2007 11:17 pm

hahaha lol.i think ill try to make a combustion cannon out of it when i get some mony.
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killjoy said and i quot "duct tape is a gift from god "

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Unread postAuthor: Killjoy » Thu Mar 29, 2007 12:15 am

You smart ass noname, though that was funny.
It was in my youth (like 10 i think) when i did that, before i understood the concept of safety (and that a sharp piece of plastic shrapnel traveling at a high speed would not be good to my groins health) , and fortunantly the chunk blew out away from my groin. Since then i have been unwilling to test fire a cannon between my legs as you might have guessed.
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Unread postAuthor: aturner » Thu Mar 29, 2007 12:37 am

Those water jugs hold us to pressure spikes very well. Ever seen them dropped when full of water? The times I've seen a full one hit the kitchen floor at work, they bounce like a ball! I don't know how much pressure is generated, but it's 5gal of water falling approx a meter.

I'd be more concerned about getting a tight fit for the barrel and how to secure the electrodes.
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