Ours in highschool was gas powered. We worked out the ratio for a good burn and found a similarly sized metal scoop. Once loaded we'd shake it until the gasoline was fully vaporized.
It was terrifyingly loud. We'd wrap stones in duct tape, spray them with oil, then shoot them through sheet metal. Put a few through some old steel chairs. Tore the cover off some golf balls.
I suspect it may have reached higher pressures than my bike tires, but I never really considered trying to measure it.
Butane and propane can easily produce > 100 psi when used in engines, and are commonly used as replacement for gasoline and other hydrocarbons in generators and fork lifts to do just that.
In a confined enclosure (potato gets stuck or the like), it’s a pipe bomb.
by engines I'm assuming you mean something with a stroking piston which is going to reduce the total volume by somewhere from 4:1 to 13:1, so that's going to increase major pis increases by itself even before explosion. You don't have compression with butane into a potato gun, just the efffects of the rapid combustion. So it wouldn't really be a fair comparison.
bobmcnamara|1 year ago
It was terrifyingly loud. We'd wrap stones in duct tape, spray them with oil, then shoot them through sheet metal. Put a few through some old steel chairs. Tore the cover off some golf balls.
I suspect it may have reached higher pressures than my bike tires, but I never really considered trying to measure it.
phreeza|1 year ago
lazide|1 year ago
Butane and propane can easily produce > 100 psi when used in engines, and are commonly used as replacement for gasoline and other hydrocarbons in generators and fork lifts to do just that.
In a confined enclosure (potato gets stuck or the like), it’s a pipe bomb.
grogenaut|1 year ago