I would recommend doing the math. Burnt lake has shown that a chamber barrel ratio of about 0.8:1 works well. Decide on a barrel size say 4 feet to keep the full size reasonable. An 8 to 9 foot overall length is a little awkward for most people. A 5 foot barrel with a 4 foot chamber is way too big....

Ok, Iamb math isn't my strongest subject, so If my barrel is 4" of 2.5" pvc what lenght of 4" pvc would I use for the chamber. when I calculated it the volume of the barrel came out to be 19.56. 80% of that is 15.64 so does that mean the chamber should be 8 inches? I know I am an Idiot but It would ...

This should be my last question. If my barrel is 2.5" pvc and my chamber is 4" pvc what would you guys recommend for lenghts. I was thinking about 3 feet for the barrel and 1.5 feet for the chamber, I was looking at some of the other cannons and I thought this would be about average..... What do you...

Is this your fist time building a cannon? Do you know how to identify pressure rated PVC pipe and fittings? How much money are you willing to spend? Just a few questions for you to consider. Try and figure out exactly what you would like to do and how simple or complex you want your cannon to be. T...

Ok, One question that came to mind was that I think I read that you are only supposed to tap holes in to a double layer of pvc. Why is this? I know Im a noob but I really appreciate your help.
Thanks

Hello, im about to build my first advanced propane conbustion cannon. Im am planning on going with a under over design. Before I start building I was just wondering what are the most common mistakes people make when constructing there first cannon so I can avoid them when constructing my cannon. Tha...