I run a 3W 18x8 (which came with the plane/engine) - at least I did until I took the gear off and broke the prop.

As has been noted on RCUniverse before, the gear mounting is very flimsy. I don't think I have ever had a .40 size plane with less support for the LG mounts.

It did survive about 10 flights with the stock gear mount before ripping off on a (slightly) bouncy landing. I knew the gear was flimsey, and was careful to make very soft landings, but after a while I got a little sloppy and that was all it took.

The plane flies very well. It hovers at just over 1/3 throttle, but even at full throttle is not very fast (and that's OK). It will knife edge forever with very little elevator/aileron input.

Mine would corkscrew with high elevator throws. I don't think the plane is tail-heavy, but I never checked a lateral balance, so maybe that is the problem.

The engine was tuned by a few gas guys at the field (I am a total gas newbie) and has been flawless ever since. Despite my initial griping about 3W, they make one heck of an engine.

I need more time on this plane, but I think it is a real winner. If it only landed as well as it flies, it would be perfect.

Leonard