Photo taken on Dec. 20, 2016 shows the AC352 civil helicopter taking off during its maiden flight in Harbin, northeast China's Heilongjiang Province. The new Chinese civil helicopter made its maiden flight on Tuesday, marking a new development in the nation's helicopter industry, the Aviation Industry Corporation of China (AVIC) said. The AC352 civil helicopter is a multi-purpose twin-engine helicopter with a 7.5-tonne maximum take-off weight, and is capable of carrying up to 16 passengers. (Xinhua/Li He)