This ball-shaped rotating wing rc-aircraft was designed and built to learn about the flight behavior of constantly horizontally rotating wings. It flies with a remarkable stability in winds up to 1bft. Flightweight is around 650grs. and it is powerd by a 3D vector control unit, permanently stabilized by a 3S-1050mA LiPo (120 grs.) as a pendulum. The rotating ball is made from 6mm DEPRON and cf-rods.