
A pilot operates at a simulated cockpit at Sky Plumage flight training base in Haikou, capital of south China's Hainan Province, Aug. 17, 2017. An open day on aviation safety was held at the base here Thursday. (Xinhua/Guo Cheng)

A pilot operates at a simulated cockpit at Sky Plumage flight training base in Haikou, capital of south China's Hainan Province, Aug. 17, 2017. An open day on aviation safety was held at the base here Thursday. (Xinhua/Guo Cheng)