RE: Is An OS 55AX The Right Engine?
Spinner,
The Rolls-Royce combo is what is now installed on the wings of the Lockheed C-130J, Alenia C-17J Spartan, Saab 2000, Bombardier Q400 and a few others...
This 4,591 HP engine spins a 13.5 ft. diameter, 6-blade prop...
Having a lot of power, on the same weight, is nice!
Having even more power and more weight, to me is too much.
There is a limit to the amount of power; and it is the amount you can actually use effectively.
Adding weight spoils the whole point.
EDIT: Corrected size of prop.