BEIJING, Oct. 27 (Xinhua) -- China's heaviest cargo unmanned aerial vehicle (UAV) completed its maiden flight in northwest China's Shaanxi Province Thursday.

The AT200 drone, jointly developed by several research institutes and companies, made a successful 26-minute maiden flight, according the Institute of Engineering Thermophysics.

With a maximum take-off weight of around 3.4 tonnes and a payload of 1.5 tonnes, the AT200 could be one of the world's most powerful civilian UAVs, according to the institute.

Developed on a P750XL utility aircraft, the UAV has a maximum flying speed of 313 km per hour, a flight range of 2,183 kilometers and a 6,098-meter service ceiling.

Taking off and landing can be automatically completed within 200 meters.

It could be used to conduct freight transport in mountainous regions and on islands, according to the institute.