Expert: the performance of 737800 is relatively stable, but it does not rule out the possibility of problems and defects in different production batches

Guo Qing, an associate professor of the school of Aeronautics of Northwestern Polytechnic University, said in an interview with Guoshi express on the 21st that he was very sad after hearing the news of the China Eastern Airlines aircraft accident, "in fact, there are many 737-max accidents in Boeing's aircraft in recent years." Guo Qing believes that in the design process of Boeing 737-max, the designers may have "catch-up" and other reasons. In order to increase the capacity and load of this type of aircraft, they directly use a larger engine, which leads to a series of changes such as the forward movement of the aircraft center of gravity and the increase of the landing gear. The design defects of the flight control system and the insufficient training of pilots are also the main reasons for the frequent accidents, So that China will still ground the 737-max. Guo Qing said that compared with the Boeing 737-max, which has a relatively high accident rate, the 737800 is an old model that has operated for at least 10 years. Its performance is relatively stable and is more popular in the market. However, it does not rule out the possibility of problems or related defects of aircraft in different production batches in the later stage.