my bigger models are temporarly broken [&o], so, thinking what i can do to save myself from going insane, i went and got out my firebird commander! (my only wing that came with it is broken.....in many pieces) so i decided to make my own wing! the box the commander came in had a large piece of styra foam on one of the sides. i cut that off and mounted it onto the plane.........this 41 inch piece of foam makes my plane fly faster, climb further and i didnt have to buy anything! it was a real shock to see a piece of the box that the plane came in fly....but it really does!