China's first 7-tonne unmanned logistics aircraft, the Changying-8, was well prepared for its maiden flight, which took place at an airport in Zhengzhou, central China's Henan Province, on Tuesday. Systems such as intelligent flight control, power fuel and flight quality were verified. The Changying-8, 17 meters in length with a wingspan of 25 meters, is a large unmanned logistics aircraft independently developed by China.