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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: MrCrowley » Wed Apr 04, 2007 5:49 am

Well im telling you now that you did not use pressure rated PVC. Even if you glued it wrong it would of 'seperated' and not blown up. Safety first.
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Unread postAuthor: joannaardway » Wed Apr 04, 2007 6:44 am

I think unrated pipe is the only possibilty.

Because my BS-o-meter is reading fairly low for this one, but my n00b-o-meter has peaked.
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Unread postAuthor: sandman » Wed Apr 04, 2007 8:18 am

where did you get your BS-o-meter, i need one.

i will believe when i see, give us pics
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Unread postAuthor: chaos » Wed Apr 04, 2007 8:36 am

i got a give-a-f u c k-o-meter hehehe

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Unread postAuthor: paaiyan » Wed Apr 04, 2007 11:18 am

I think it's an ID Ten T error. But that's just my opinion.
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Unread postAuthor: imjustpk » Wed Apr 04, 2007 12:52 pm

If the pressure was allowed to escape the barrel, then I would think the explosion to be minimal rather than disastrous. What are the ramifications of using wax in a combustion? I know that the short duration of the burst probably wouldn’t melt it, but I know materials react differently when both heat and pressure are applied to them, such as superplasticity.
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Unread postAuthor: pyromanic13 » Wed Apr 04, 2007 12:53 pm

I call shens until farther notice
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Unread postAuthor: locksmith » Wed Apr 04, 2007 1:02 pm

propane only?i think there is more to this story.
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Unread postAuthor: locksmith » Wed Apr 04, 2007 1:04 pm

hey that wasnt wax it was c-4 opps
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Unread postAuthor: pyromaniac » Wed Apr 04, 2007 1:18 pm

Can you atleast give pictures of the cannon.

lock smith dont repost 2 mins after your first. use the edit
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Unread postAuthor: A-98 » Wed Apr 04, 2007 1:33 pm

i to agree that he was probably using cellular core or something else that wasnt intended for pressure.

@locksmith dont double post, and c-4 wont explode due to open flam, you need a detenator. note the retard who tried taking down a plane by holding a lighter to his c-4 filled shoe.
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Unread postAuthor: joannaardway » Wed Apr 04, 2007 2:06 pm

Just a moment. I'd forgotten my error code machine... *types in a few figures*

Yup, as I expected. Error code: N07-1337
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Unread postAuthor: paaiyan » Wed Apr 04, 2007 3:39 pm

Hahahahaha. That's a new one joanna.
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Unread postAuthor: risto » Wed Apr 04, 2007 4:53 pm

i've used NSF-DWV before for a combustion and had my ammo jam when i fired, but all it did was hold the pressure inside. Combustion doesnt generate enough pressure to explode PVC (30-50 PSI) from what I have found.

maybe it was cellular core?

or maybe there was already a crack in the chamber?


but i agree with you all, WE NEED PICTURES!!!!
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Unread postAuthor: clide » Wed Apr 04, 2007 5:08 pm

The PVC could have had a hairline crack in it.

I've had a piece of pressure rated PVC fail in a situation where the only explanation I could come up with is that the PVC was weakened by a crack. Luckily it wasn't the pressure vessel or else I would have had a bad day.

However, if I had to guess I would say this was most likely made of drainage pipe.
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