Deanoo, I'm planning to replace the wing on the Funtana 40 , the wing it comes with has some very bad flight problems in my opinion, but I'm really just experimenting i don't have to damage or even alter the fuse of the Funtana to try a new wing design. if i cant find a wing to make me happy with this plane then i will probably just hang it on the sealing of my Hobie room and forget about it. I'm used to flying extremely precise planes and the Funtana doesn't even fly as good as most funflys.