BTW, flaperon is not a good idea for planes with barn door ailerons. when you drop both barn doors, what you have created, in effect, is a wing with wash-in. This is very bad, because the wing tips will be at a higher angle of attack and so will stall first before the wing center.

Flaperons are okay for strip ailerons that run the whole length of the wing. Even then, I would be very judicious with its use.

I thought about adding flaps to this plane, but the wing loading is so light, even with a 1.20 4stroke, that I doubt flaps are really necessary.