What is the Diameter of the smallest cannon that shoots a 1/4 ball bearing and only has two barrels from BDE cannons?
Well, looking on www.bderc.com shows that their smallest twin 1/4" cannon has a 3.5" diameter magazine. If you're asking about how small it CAN be built, thats a different story. That mostly depends on how good of a machinist you are. Might I inquire as to why you want to know?
3.5 might be to big, Narwhal is 2.75 inches wide. and wont fit. Does anyone make a cannon smaller than two inches?
Considering a sub's aspect ratio, you might think about making your own based on either the fast gun designs or some of the single shot "torpedo" cannons from big gun.
I'm doing big gun, Does anyone sell a double barrel cannon that shoots 1/4 with a magazine size of about 2 to 2 and a half inches? one and a half diameter magazine would be even greater!
Well, here's the thing. The guns sold at BDE RC are specifically designed for Big Gun BATTLESHIPS. That means they are intended to rotate, and to take up lots of space and fire very often. Submarines have different requirements. They don't have to fire very often, and they can't rotate their torpedo tubes. Scratch off the rotation and reloading and the cannon becomes dramatically simpler and smaller. I remember seeing one surface-running submarine that had SIX torpedo tubes armed in the bow. (what a whack!) The only downside is that you have to build such cannons yourself, or get someone who can make them for you.
