" However the OS .55 is really the perfect engine for that airplane. Thats what the Great Planes guys fly it with. I have seen their plane in person. Awesome. I think they were running 30% Nitro in their OS .55. Unbelievable performance and flying. Tons of power. Light wing loading"

I have a .46 U Can Do powered with an OS .50 SX-H that flies the airplane outstanding. 12x4 prop and Tower muffler really rips it around well. Here are a few pictures of us playing! Have not tried the OS .55 yet but I'm sure that engine would work well to.
Jason