.For the first time, China's independently developed ARJ21 regional jetliner landed at the Jiangbei International Airport in southwest China's Chongqing municipality on Tuesday. The plane will join the fleet of China Express Airlines, a Chinese private regional carrier headquartered in Chongqing. In early November, China Express signed an agreement with the Commercial Aircraft Corporation of China (COMAC) on purchasing 100 airplanes, among which 50 will be the ARJ21. This is the 39th ARJ21 aircraft delivered into the market since the first one was put in service in 2016. The ARJ21 is China's first turbofan regional passenger jetliner. Designed with a capacity of 78-90 seats and a range of 3,700 km, it can fly in alpine and plateau regions and adapt to varying airport conditions. Seven carriers are currently flying the ARJ21. They are serving on 86 routes that connect 64 cities.