On November 2nd, at the opening ceremony of the 2024 China Aviation Industry Conference and Nanchang Flight Conference, an ARJ21 and a C919 aircraft took off, and formation of formation, collaborative Qi Fei, collaborative turning, low altitude low altitudeFlying performance projects such as the field.This is the first flight performance of the ARJ21 and C919 aircraft, which focuses on the good flight performance of the two aircraft.()