How to fire your launcher
This is how you use this particular type of spud gun. First get something to shoot, a potato, apple, etc... Then find something long like a broom handle. Take the projectile and push it into the end of the barrel (the tighter you can get it in there the better) then take the long stick and use it to ram the projectile down the barrel. Stop a little before the projectile goes into the Combustion Chamber. Now unscrew the end cap, spray in some hair spray or other propellant( 2 to 5 seconds worth ) and quickly put the end cap back on. Your ready!! Now all you have to do is set off the igniter and BOOM! Off it goes.
Propellents