The propeller of a ship-borne Z-18 helicopter rotates aboard the aircraft carrier Liaoning (Hull 16). The aircraft carrier Liaoning (Hull 16), several guided-missile destroyers, frigates and dozens of aircraft attached to the Navy of the Chinese People's Liberation Army took part in a combat exercise at an unidentified area east of the Bashi Channel in the western Pacific on Apr. 20. The exercise was a routine arrangement as a part of the PLA Navy's annual training plan. (eng.chinamil.com.cn/Photo by Zhang Lei)
