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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saefroch
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Fri May 13, 2011 5:29 pm
Your question can be answered by checking the phase diagram Tech posted. There is no set value, it is dependent on temperature because there is actually a substantial amount of liquid propane in a cylinder.
