A successful test flight of a large commercial unmanned cargo aircraft was conducted in Baotou City, north China's Inner Mongolia Autonomous Region. The FH-98, developed from China's Yun-5B aircraft, has a maximum take-off weight of 5.25 tons and a maximum payload weight of 1.5 tons, which makes it the largest cargo drone in the world. The plane is capable of reaching a flying altitude of 4,500 meters and a cruising speed of 180 kilometers per hour, and has a maximum range of 1,200 kilometers.