HC-260 unmanned helicopter adopts the traditional single-rotor helicopter layout, the tail rotor is directly driven by motor, the main rotor is driven by a fuel engine, and the airborne equipment is powered by an integrated generator and battery. The rotor control system operates on the same principles as a traditional helicopter, delivering excellent flight performance, including high stability and maneuverability. Compared to multi-rotor, the propeller efficiency is higher and the endurance is longer. It supports beyond visual range flight and, with the aid of signal relay, can perform tasks in complex geographical environments, such as low-altitude operations in mountainous regions and over the sea.