CYS-R208T rotary engine is a light single rotor Wankel rotary internal combustion engine. Compared with reciprocating piston engine, rotary engine has simpler structure and less mobile elements. It has the advantage of small volume and light weight. In addition, rotary engine operates stably and has slighter mechanical vibration. This engine is equipped with non tip  magnetoelectric machine and efficient alternator, which can provide sufficient power supply to carried device on unmanned aerial vehicle. Because of its light weight and large capability, this engine is suitable for small-sized unmanned aerial vehicle, powered parachute and glider.