SpudFiles

this will be my first pneumatic cannon that i will be building and i have a few questions about the air supply.

first of all, my cannon will be very basic like this
http://www.spudfiles.com/forums/viewtopic.php?t=122

the chamber will be 2" and 4' long.
i will be putting 100psi as maximum in the chamber

right now i have an electric air compressor and i was thinkin about getting a tank. I was wondering if someone could give me a list/chart of different sizes of air tanks and how many shots i can get out of them filling the chamber up at the most of 100psi (nothing higher probably)

what kind of tank are you talking about

you could use a portable air compressor tank(the kind you fill up with an air compressor and tag along with you) there about60 bucks a walmart if thats what your talking about

One of my pneumatics has a tank about half as big as yours and with a 15 gal compressor I get about 15 shots shooting marlbles with continuous air connection before the compressor kicks on. If I switch off the unit I can get 20 or so good shots with what is in the tank before I get weak uninteresting shots. So with the same tank you might get about half as many as I get.

i was talkin about that tanks that cotton mentioned

ok, i was just curious because my grandpa is giving me a 10 gal tank and was wondering how long it would last if it were filled all the way

i'd say about 10 shots but thats an estimate. Do you have access to a compressor to fil it up ?? if you not you could get a battery or 12volt bicycle pump to full it up with and then you could fill it up on the go to(just hook the punp to your car 12v outlet.)