thats the most creative cannon here good luck in the contest

one key factor in going from feet per second to mph is you need to know the feet per second of the cannon first most peaple here dont even know the cannons fps thats why when they say oh this type of valve is faster how do they know have they actualy tested it or do they just think becuse they spent...

well i suppose ing every body is smart enouph to get a chronograph and get the fps off that and some chronographs will even tell the mph peaple who make cannons should be smart enouph to see how fast they go so you know where to shoot and not to and it dosent take much to learn there are just alot o...

try using a 1/3 ball valve instead of the blow gun to stop the honking it will let more air out quiker if you have any qwestions pm me

i love the ram you obviosly know that ball valves when turned fast are better than sprinkeler valves

ghetto but cool ill try it

yeah but not every body has a mac plus you could do this in your head or if your like me with a calculater but thanks for the input

you could also use solder just take it all off the role and melt it in the pot or pan you have to do that with

Take your feat per second that your object is traveling and multiply by 3600 which is the amount of seconds in one hour now take the number you just created by multiplying and divide it by 5280 which is the feat in a mile the number now created by dividing is the mph -----*multplied by 3600=--------...

how do you post pics
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such a moron if you want a fuse 1 buy off the internet 2 take apart fire works

iv just done some test with a slow motion camera and found that sprinkeler valves shoot the same as ball valves becuse it lets air out the top it reduces the speed a littel and the air has to go through the parts of a sprinkeler valv thats why peaple are always complayning about it making a honking ...

you should paint the shotgun barrel to make it look better

pretty nice