Rather like when the state-controlled Aeroflot was broken up with the demise of the USSR, one of the benefits for the enthusiast travelling in China is discovering airlines that you'd barely if ever heard of - Kunming-based Ruili was one such example for me. Such is the nation's burgeoning airline industry that they already have 18 737NGs, including this ex-Air Berlin example, and have 737MAXs and 787s on order.