The movable surfaces from the wing are two for each wing. I think they can be called the flap (closer to the fuselage) and the aileron. These are the two parts that go to one wing. Note they are two separated parts. You can insert a wire inside each, and you can have truly movable surfaces, but for the sake of the contest, I won't use that approach. So they stay fixed on the wings. But I think they look pretty nice, huh?