I got a Duraplane 40 trainer for my first plane. The wing is styrofoam and comes in one piece (plus wing extensions) anyway, I was getting ready to put on the ailerons and noticed that the trailing edge (is that the right term?) of the wing is almost like an ‘m’ shape. Both sides of the wing are this way, perfectly symmetrical, which is why I thought that’s the way it’s supposed to be.

Does anyone know if that’s the way it’s supposed to be because the ailerons will not be flush with the trailing edge of the wing, or should the trailing edge of the wing be perfectly straight? I called the place I got the plane at, and the girl had no idea what I was talking about, I’m not sure I have any idea what I’m talking about……….and naturally the duraplane instructions say nothing about this.