all the pt seroes from gp are built like that. they all use a better wood but still make the trussels in the fuse. that thing is tough. i have hit it pretty hard before, bending all my gears out 90 degrees and no problems. i am long past that plane now and the covering is holding up well. the only real hole is the hole where my dad's too big and heavy thick rx glasses fell through. that's why i argue for that plane every time. it is built like a tank but sure doesn't fly like one. it is very stable at slow speeds.