my bother flys one with a 40 La on it with no problem other than taking off on grass. But it will do it. I think he did order a supertiger tiger .51 for it though after the grass adventure.

I don't know if I would remove the wing dihedral or not. I have seen him run his plane straight up until it stalls out and no matter which was it flops it will return to level flight with thumbs off of the sticks. I was impressed. Oh it does require significant altitude. The dihedral has to help with this.

HTH