[Abstract] yesterday, the ARJ21 aircraft of 105 aircraft from Nantong, Jiangsu takeoff, to Dalian development route demonstration flight. This sign the ARJ21 aircraft for the first phase of the demonstration flight is about to wrap up. Aircraft returned from Dalian, Nantong, will be July 27 transitions in Chengdu, began to to Chengdu main base for a new round of demonstration flight, to prepare for the formal operation. The first time to take ARJ21 of domestic aircraft, passengers excited...