Why did China Airlines extend the plane?

Question 1: Why can't we fly because of air traffic control?

1. At present, the airspace management in China belongs to the Air Force, and the Civil Aviation Administration of China can only use the airspace within the scope permitted by the Air Force. Once the air force exercises in an airspace, all civil aircraft in this airspace will be banned from flying. Because of the duration of the exercise, the control field is a military secret. In this case, airlines can only explain to passengers on the grounds of air traffic control.

2. If the airspace is not large, there will be fewer air routes, which will inevitably lead to air route congestion. For example, the Beijing-Guangzhou route is an air passage with a width of 20 kilometers and a height from 0 to 14000 meters. The plane can only fly on this route without any deviation. All flights from Beijing to Guangzhou, as well as flights from Zhengzhou, Wuhan and Changsha to Beijing and Guangzhou, and flights from Northeast China to Guangzhou, must fly this route. In this case, with the continuous increase of civil aviation traffic, especially the routes between Beijing and Guangzhou and the east of Beijing and Guangzhou, traffic control caused by route congestion becomes inevitable. Once there are too many take-off and landing planes and the inbound and outbound routes are blocked, airlines have to postpone the take-off and landing on the grounds of air traffic control.

Question 2: Look, all the planes of Flight X have flown away. Why can't I fly? There are many situations. 1. Different planes have completely different safety standards, some of which are quite different. It is likely that under the same weather conditions, the A380 can fly, but the A320 can't.

2. For the same model, different airlines have different safety standards. Under the same weather conditions, it is likely to meet the safety standards of China Eastern Airlines, but it does not meet the safety standards of Hainan Airlines.

It is an unwritten rule that international flights have priority to take off. Someone wrote in the travel notes that the Air Canada plane took off for several hours, while the Air China plane did not move. That's about it. Base airlines have priority to take off, such as Air China in Beijing, China Eastern Airlines in Shanghai, China Southern Airlines in Guangzhou and Sichuan Airlines in Chengdu. If you want to take off first, it is recommended to choose the base airline. Question 3: The sky is clear in Wan Li outside the window. Why can't I fly because of the weather?

One of the reasons that people often hear that the plane is late is the "weather". However, when passengers see the sunny weather in front of them and find that their destinations are the same, they will inevitably wonder if they have been fooled by the airlines. But in fact, the simple word "weather reason" actually contains many situations:

1, the weather conditions at the departure airport are not suitable for takeoff; 2. The weather conditions at the destination airport are not suitable for landing; 3. The meteorological conditions of the flight route are not suitable for flying over; In addition, the judgment of "weather conditions" in the field of aviation flight is very different from the life experience of ordinary people. Aircraft take-off and landing are not afraid of strong winds and heavy rain. The key meteorological factors are visibility, low clouds near the airport take-off and landing passage, thunderstorm area and strong crosswind. Sunny weather does not mean normal weather in the sense of flight. Question 4: If we knew there would be a delay, why should we wait in the plane?

The plane has to go through a very complicated control process from departure to arrival. Every link must meet the standard before the next link can be carried out, and because of the limited resources such as runway, if the conditions are not met within the specified time, all of them must be returned to start over.

Under this rule, it is not difficult to explain why airlines always persuade passengers to board the plane as soon as possible, because once pilots delay applying for flights for one minute, they have to make way for all flights that are applied for on time, and sometimes even let more than a dozen planes take off. Passengers often complain that airlines know about flight delays and have to let passengers wait in the cabin instead of going to the more spacious terminal to rest. Some media analysts even said that the airline's move is to improve the punctuality rate of flights. But in fact, the plane can only apply for departure permission by closing the hatch, thus entering the waiting sequence. If passengers disembark at this time, the plane will be immediately excluded from the waiting sequence.