Step 12: Operation
Charge Fuel Pressure in Meter (PSI) Air Pressure in Chamber (PSI)
x1 30 15
x2 60 or 2 charges of 30 30
x3 90, or 2 charges of 45 45
x4 2 charges of 60 60
To operate the cannon, first open the propane valve and measure a certain pressure into the meter. Release this into the chamber and use an air compressor to add a certain pressure of air into the chamber. For more information see http://www.spudfiles.com/spud_wiki/index.php?title=Stoichiometric
Then stand aside, turn the stun gun on, press the button, and listen to the boom.