The Liaoning, China's first aircraft carrier, was refitted from a former Ukrainian vessel, Varyag. The carrier is 306.4 meters long and 74.4 meters wide. It has a displacement of more than 50,000 tons, and a maximum speed of 28 knots per hour. The aircraft carrier is composed of a ship body, ground tackle, power system, electric power system, ship support, aviation security, and combat system, etc. (Photo/81.cn)
