Daxing airport is so clean, why does the real plane fly "yellow smoke rolling"?

Daxing airport is so clean, why is the real plane "yellow smoke rolling" during the test flight? In fact, it's just that the interior of Daxing Airport is very clean. It was windy on the day of the test flight, and there were no supporting facilities near the airport departure place, so a lot of dust flew up, so there was a "yellow smoke rolling".

In May this year, our Beijing Daxing International Airport carried out the airport test flight verification. China Southern Airlines, China Eastern Airlines, Air China and Xiamen Airlines sent A380, A350, B747-8 and B787 respectively. Among them, China Southern Airlines A380 and Xiamen Airlines B787 landed on the west runway of Daxing Airport, China Eastern Airlines A359 landed on the west runway and Air China B747-8 landed on the east runway.

As soon as the pictures of the scene were released, many people noticed that when the plane took off and landed, yellow smoke was rolling and dust was flying, which was very strange. Just because an international airport suddenly flies out of a field airport doesn't mean it's clean.

In fact, in order to meet this test flight, airport staff have made a lot of preparations, among which the cleanliness of the test flight area is the most important. The airport also organized all-round manual+machine cleaning of soil area, flight test area and road surface.

However, the reason why the flight test was "yellow smoke rolling" was because it happened to be windy that day, and some construction areas of Daxing Airport itself were covered with yellow sand because there was no vegetation to fix sand. Moreover, when the plane takes off, it will spray, which will further aggravate the dust flying and make people look very unclean.

However, it is worth congratulating that the test flight was very successful and has already started operation.