ORIGINAL: polstery
Just to blow your mind, the plane does not (feel) the 15mph headwind. I think what you were trying to tell us that the plane was going 15mph faster in the headwind WRONG.
I need some elightenment also. It seems to me that if the plane was even stopped you would still have 15MPH airspeed over the ailerons.
I agree that these planes are not built to fly super fast, but straight and level with the recommended engine? It did have the supplied 256 aileron control rods. They are a bit flimsy and soft. If he is able to fix the plane I think 4-40 rods would be a good place to start.