Thanks Double D. I made another search for my glasses. Found 'em! Ah yes 15" it is! Thank you. I doubt that 15" is going to be very popular so we will probably scale it up to 16", everything, that is. We have enough tube weight to meet those requirements, so having wheels and carriage a little bigger will only help a bit with recoil. Bonus! Recalc of orig. figure, 22.5 % became 23.5%, so 15/16=.9375%, thus.....we will have a carriage of 24.438%.........as a stand-off scale project, we will call it 25%. Any help with taming recoil is welcome. Neither Mike nor I like back flipping or twitchy recoiling cannons. Slow, but powerful enough to plow the soil is what we look for in a field or siege gun.
Our pole answer is 16" wheel size.
Tracy
P.S. How do you change your pole vote from "other" to 16"? Ed, I doubt that it can be done, so just make a note. Thanks. DD will prove me wrong, just to do it. Watch.