The TF Corsair. The main center section of the wing is built around a plywood section that you have to laminate together. The plywood section was warped and no matter want I tried I could not get rid of the warp. It sits in my basement as a reminder that I should have attempted something easier for my first build. Since then, I have built several kits and love it. There is something about seeing a box of wood becoming a recognizable aircraft.