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Posted: Fri Jan 19, 2007 6:51 pm
by Cosmo
sweet gun but u should give it a paint job

Posted: Sat Jan 20, 2007 9:18 pm
by Walsh_3rdE
nice cannon but y do you talk like borat ? " im 16 - you look "

Posted: Sat Jan 20, 2007 9:23 pm
by killagorrila99
"Yek she mash! Hello my name a borat, I mary pamela's enderson"
Sounds nothing like what he said. Nice gun. Very.

Posted: Fri Jul 27, 2007 11:21 am
by Alabaster
hey i thought hybrids werent supposed tho use sch 40

Posted: Fri Jul 27, 2007 11:27 am
by dauphinoise potato
That is a really nice cannon awesome first cannon.And by the way alablaster it's a combustion not hybrid.

Posted: Fri Jul 27, 2007 11:31 am
by Alabaster
my bad i thought i saw a propane tank

Posted: Fri Jul 27, 2007 1:48 pm
by dauphinoise potato
Yeah you saw rightly that is a propane tank. The cannon has direct propane injection.

Posted: Fri Jul 27, 2007 1:51 pm
by Alabaster
Wow :shock: shounds kinda gutsy to me

Posted: Fri Jul 27, 2007 2:05 pm
by paaiyan
No, people do it all the time. You inject the amount of propane that is stoichiometrically equivalent to the amount of oxygen in the air so the combustion is as efficient as possible. If you look at some of the better cannons on here. you'll see that a lot of people do it.

Posted: Fri Jul 27, 2007 2:07 pm
by Alabaster
Then whats the differens between this and a hybrid

Posted: Fri Jul 27, 2007 2:46 pm
by dauphinoise potato
A hybrid has a compressed mixture of the fuel and air in the chamber that is keeping within the 4.2percent propane to air ratio held back by a burst disk. When the mixture is ignited the burst disk ruptures.

Posted: Fri Jul 27, 2007 2:48 pm
by SpudBlaster15
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Posted: Fri Jul 27, 2007 2:49 pm
by Alabaster
hey hey man i love.

Posted: Fri Jul 27, 2007 2:56 pm
by Pilgrimman
Hybrids depend on stoichiometric ratios that allow the propane to combust, just like combustions. The difference is, they store propane and air in stoichiometric proportions, but the pressure is higher. It's like having two or more shots of combustion fuel and air in one chamber. The reason this is used is that the gas particles gain more energy from this mix, and are therefore less limited by the sound barrier. Pneumatics are fundamentally limited by the energy of the gas particles, and since air is relatively heavy, the ability of the particles to move fast is hindered.

To all hybrid builders: Correct my post if it's wrong. I'm just trying to get the general idea across.

Posted: Fri Jul 27, 2007 2:58 pm
by Alabaster
and thank you for trying pilgram. unlike some people