I have built a park flyer style electric based on a modified Wing Dragon wing. The flapperons were made by cutting loose a 40 mm wide strip of the trailing edge and hinging it with self adhesive film like the type used to cover ready to fly models. Wingspan is about 1,1 m and fuselage length 0,9 m. All up weight is 550 gram. Motor is a Speed 480 with 8 cell NiMh battery. The tailplane and fin has no moveable surfaces. Control is by flapperon and motor speed. When flying there is no obvious difference between this plane and elevator controlled aircraft in the handling or flying qualities. As this is a constant speed aircraft, motor speed control is very sensitive and needs some getting used to. To much power makes to model go into a series of uncontrolled climbs and dives.