Hmmm...
I was under the impression that in order to keep from over revving in the air when the prop unloads, that I needed to keep my ground RPM at or just below 9000.

Ok...I will put the M/A prop on and get some numbers...

What about a 2 blade selection...????

Plane is a P-51 Mustang (H9 Miss America)...

I fly pretty scale.... anything the real plane can do..I try to emulate.

I'll order a new spinner and a couple of props based on your selections..

THanks

Larry