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cell core pipe....

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: jimmy101 » Fri Jan 04, 2008 11:55 am

Assuming you are fueling with propane+air at 1x and it is a true mortar (fairly short barrel relative to the pipe diameter), I would put the hazard rating at a 2 or 3.

If you can actually get the fire rate up to one shot every 5 seconds then the safety rating might go up to a 7 or 8. But I would worry about pressure rated PVC at that high a fire rate as well.

Cellcore PVC works fine for any combustion gun using propane+air at 1x.
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