Well I just got the Cox Tailwind trainer 40. Workmanship to my eyes(Beginner's) looks pretty good. I got this ARF cause there is a good chance I will have a few mishaps and the cost of the plane will soften these mishaps. The box states 5.5 lbs flying weight and indicates a engine from .40 to .51. But the plane looks pretty large and I think a .40 engine may not be the engine of choice.
So I am thinking of a .61 engine rather than the .51 engine. I need comments on my choice of engine and suggestions of some engines to consider.....one that will have the least noise as possible.

Thank You, Lakeviewjim