HC-260 unmanned helicopter adopts the traditional single-rotor helicopter layout, the tail rotor is driven by motor directly, the main rotor is driven by a fuel engine, and the airborne equipment is powered by an integrated generator and battery. The rotor control structure has the same principle as the traditional helicopter, showing excellent flight performance, including high stability and maneuverability. Compared to multi-rotor, the propeller efficiency is higher and the endurance is longer. Support beyond visual range flight, in the case of signal relay can cope with complex geographical environment tasks, such as low altitude operations in mountains and over the sea.