A JL-9 jet trainer attached to an aviation regiment under the PLA Navy taxies on the flightline to the takeoff position as another aircraft sits on the parking spot during a flight training course on February 22, 2020. (eng.chinamil.com.cn/Photo by Lan Pengfei)

Two JL-9 jet trainers attached to an aviation regiment under the PLA Navy take off in echelon formation during a flight training course on February 22, 2020. (eng.chinamil.com.cn/Photo by Lan Pengfei)

A JL-9 jet trainer attached to an aviation regiment under the PLA Navy taxies on the flightline to the takeoff position as another aircraft sits on the parking spot during a flight training course on February 22, 2020. (eng.chinamil.com.cn/Photo by Lan Pengfei)