Building Top Flite P-39
Thanks for the feedback. I am a couple of months from starting my P-39, but I am in the process of gathereing all the info I can. I have an OS-91FS scheduled for the powerplant, but I was considering a big buy of an RCV-91 because of the profile. Don't know about the low RPM and big prop. Fortunately I don't have to make that decision just yet.