This is going to be a long term thread as im collecting as much information as I can, especially technical and drawings for the Polikarpov PO2. While building my Pietenpol I am researching the viability of building a PO2 from scratch. The original had a Shvetsov M-11 5 cylinder radial engine and I thought the Kinner could be a substitute. Does anyone else know of a similar 5 cylinder radial around the 100-150hp range that maybe worth looking in to? I have a few technical manuals here in Russian but I can translate what I need through Google. I am keeping an eye out on Barnstormers for likely engines and they do come up every now and again.
Dont ask why a Polikarpov, I just think these are gorgeous!
Would be keen to hear from anyone who may have had anything to do with one or has any info I may not already have.
Scotty