Ground crew members assigned to a regiment under the PLA Naval Aviation University perform pre-flight inspections on a JH-7 fighter bomber prior to a night flight training course on March 10, 2020. (eng.chinamil.com.cn/Photo by Xu Yinglong and Shang Lingqiang)

A ground crew member assigned to a regiment under the PLA Naval Aviation University signals pilot cadets to taxi out their JH-7 fighter bomber onto the runway before takeoff for a night flight training course on March 10, 2020. (eng.chinamil.com.cn/Photo by Xu Yinglong and Shang Lingqiang)

A ground crew member assigned to a regiment under the PLA Naval Aviation University performs last-minute inspections on a JL-10 fighter trainer aircraft prior to a night flight training course on March 10, 2020. (eng.chinamil.com.cn/Photo by Xu Yinglong and Shang Lingqiang)

A ground crew member assigned to a regiment under the PLA Naval Aviation University performs routine inspections on an aircraft prior to another sortie during a night flight training course on March 10, 2020. (eng.chinamil.com.cn/Photo by Xu Yinglong and Shang Lingqiang)