A ground crew member assigned to a naval aviation brigade under the PLA Eastern Theater Command uses flag signal to guide a fighter jet into the aircraft hangar after a flight training mission on December 16, 2021.Photo:China Military

A pilot assigned to a naval aviation brigade under the PLA Eastern Theater Command manipulates his fighter during a flight training mission on December 16, 2021. Photo:China Military

A pilot assigned to a naval aviation brigade under the PLA Eastern Theater Command manipulates his fighter during a flight training mission on December 16, 2021. Photo:China Military

A fighter jet attached to a naval aviation brigade under the PLA Eastern Theater Command soars into the sky during a flight training mission on December 16, 2021. Photo:China Military

A pilot assigned to a naval aviation brigade under the PLA Eastern Theater Command gets ready in his cockpit during a flight training mission on December 16, 2021. Photo:China Military