After seeing the post by Brett of the gentlemans plane with the 65 pipe set up under 600 squares I am curious how to know if you have too much power/engine?

Thanks,

James

I don't believe that too much power is a possibility in unthrottled airplane. The model that has too much power will be going way too fast. So one basically depitch's the prop to reduce the power.
The question is how to keep enough load on the engine. Bigger prop more blades or wider blades ?

Heck, if the prop is bigger  than the l/g is long you got a problem.
but if the engine fits/and the plane can balance/and the all up weight will allow it to fly the pattern, then size isn't too big.