GP U Can Do 3D
latch66
Thank You!
It's about time someone responded with some positive comments about this plane with an os 91 4 stroke up front! I just bought one and was so mixed up on which engine to use. I am now going by the book ( Great planes book) and using an OS 91 4 stroke. Anyone out there use an os 91 4 stroke and were not happy with it flight performance?