RE: RCGF Engines
Here is the 50cc RCGF mounted on a prototype plane for Ohio Model Planes (80" Fusion). This is a scratch build and was originally powered by a 26cc with pipe. Had good performance then but now it is just scary. This plane was rebuilt after a wing came loose in-flight. The plane is still very light flying as it only picked up a few ounces from the previous version and vibration is really low. This thing will be a blast to huck-around.
The prop is a Xoar, 3-blade 20x8 and was chosen due to clearance issues. I think it looks good on the plane and it makes for very quite operation. Its great to see this plane flying again as I thought I may never rebuild it from its disastrous wreck.
Anyways, the RCGF appears to be a very good engine: reliable, easy starting, and smooth throttle transition. If it gets better with time it will be great!
David.