Thanks Mike and John,

I have to agree with Mike I do like the sound of a 4 stroke and I do want a 3 blade prop that was one reason for the RCV, but they are messy. The OS 91 surpass 4 stroke might be the answer. I think this plane might weigh in at 25 lbs or more loaded with fuel can the OS 91 handle that much weight? I have a smaller OV-10 electric model from nitro planes that I fly, I will have to become a member of my local field to fly this plane. Someone out there may have the twin experience to help with a flame out with one engine. I do know that you need to pull back the power turn into the running engine and then bring the power up slowly. Easy to say with a key board, no so much with two sticks and nerves on a maiden flight right.

Thank you guys for the advice and any other knowledge you would like to share.

Paul