chamber size, the point of diminishing return

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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magnum9987
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Joined: Wed May 07, 2008 5:02 pm

Fri Jun 06, 2008 5:35 pm

Actually, it might depend on where the ignition is. If the gases burn at different rates then the gases have smaller effect on the projectile
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