RE: Hog Bipe Engine
I have flown three Hog Bipes .... owned two. I used OS70FS on the first two and just finished my newest Hog Bipe with an OS91FS.
My experience says that the OS70FS is a great engine for this airplane. It did everything I asked it to do. However the OS91FS really makes the airplane a real performer.
Safetywrench