I've been wondering a bit about the gearbox solutions. From strickly a performance perspective, is it true you would like the largest possible prop (staying under the speed of sound at the tips, naturally), and so would also like a rather large gearbox ratio?
It seems most designs have a prop diameter limited by space over the keel. Correct? (and CLT issues, I pressume).
So, IF, you could turn a really large prop, say 100", which would *then* be the limiting factor?
Gearbox strength, engine torque, CLT, or maybe a bit of each?
Just wondering.
Mike