BEIJING: Modernising its airforce at a rapid pace, China has introduced a third-generation supersonic trainer aircraft to its military flight schools to shorten pilots' training time and prepare them for advanced fighter jets. People's Liberation Army Air Force Aviation University deployed an undisclosed number of JL-9 Mountain Eagle two-seater trainer jets this month and has started to use them to train students, PLA Air Force's Daily, the official organ of the Chinese military, reported. The aircraft has been developed and manufactured by Guizhou Aviation Industry Group, a subsidiary of Aviation Industry Corp of China. It has a maximum speed of...