Originally Posted by the_recluse
That GeeBee is pretty nice!
Hard to believe the thing can even fly. Its very squirrely when trying to land, thats for sure.
I don't know how accurate the flight model is though. If I try to fly inverted the plane starts to perform a negative G loop on its own. So if I flip upside down the nose immediatly starts climbing, and it keeps going up and then around until I am leveled out and pointed in the opposite direction. This even happens when I'm barely above stall speed.
EDIT: I posted this on Alphasim's forum and they appear to have already found the problem in the airfile.