A fighter jet attached to an aviation brigade of the air force under the PLA Eastern Theater Command takes off for a combat sortie during the round-the-clock flight training on January 3, 2020. (eng.chinamil.com.cn/Photo by Tang Jun and Huang Danwei) 

 

Two pilots sitting in the cockpit of a J-11 fighter jet get settled as they await approval to take off during the round-the-clock flight training organized by an aviation brigade of the air force under the PLA Eastern Theater Command on January 3, 2020. (eng.chinamil.com.cn/Photo by Tang Jun and Huang Danwei)

The fleet of two J-11 fighter jets attached to an aviation brigade of the air force under the PLA Eastern Theater Command soars over the sky during an aerial tactical flight training mission on January 3, 2020. (eng.chinamil.com.cn/Photo by Tang Jun and Huang Danwei)

Three fighter jets attached to an aviation brigade of the air force under the PLA Eastern Theater Command fly in an echelon formation in an aerial tactical flight training mission on January 3, 2020. (eng.chinamil.com.cn/Photo by Tang Jun and Huang Danwei)

A ground crew member assigned to an aviation brigade of the air force under the PLA Eastern Theater Command uses flag signal to guide a J-11 fighter jet to taxi into aircraft shelter during the round-the-clock flight training on January 3, 2020. (eng.chinamil.com.cn/Photo by Tang Jun and Huang Danwei)