Why don t transoceanic planes fly non direct, but fly over the Arctic Circle?

Anyone who has ever flown in an ocean-going plane knows that our country's transoceanic aircraft will not choose to fly non-stop, but will fly over the Arctic Circle.

to reach your destination. In fact, judging from the map, most people can't understand why this is done, because the route goes around in a big circle, which is a very uneconomical behavior for airplane flights. <>

In fact, the reason why transoceanic planes do not fly non-direct, but choose to fly over the Arctic Circle is very simple, because this route is not the closest. On the map, we feel that China and the United States are separated by the Pacific Ocean, because we see it on a flat surface, and in fact we all know that the line between two points is the shortest. However, the actual Earth is not a plan.

Rather, it's a sphere. The map we see is a plane that has been processed by technology, so there is a certain error when converting a three-dimensional thing into a flat thing. So the distance between China and the United States that appears on the map is a straight line, and the map shows that it is the nearest road, but in reality, it is not the closest route.

If we look at a realistic globe.

Or if you look at a software that simulates the Earth, you will find that China flies to the United States and bypasses the Arctic Circle, which is the closest route. When an airplane actually completes its transoceanic journey, it takes three to four hours to cross the Arctic than it does to pass through the Pacific Ocean. In fact, this principle can be explained by the geometric theorem, when the closest distance between two points on a sphere is the inferior arc between these two points, and then the inferior arc is the arc with an angle less than 180 degrees.

In fact, the route of the average transoceanic aircraft passing through the Arctic happens to be a large circle on the surface of the sphere. Therefore, flying over the Arctic Circle is actually the nearest route, and it is also the most time-saving and fuel-saving route, so many international flights will choose this flight route. In addition, we also found that the science and technology of the 21st century have actually made most people not believe that the earth is a sphere, but the best evidence to prove that the earth is still a sphere is actually this great circle route.

After the introduction, has it solved everyone's doubts and increased a lot of knowledge!

Before solving the above questions, we first need to understand the considerations of international route planning, which mainly have the following three points:

1) First of all, route planning needs to comply with international air traffic control;

2) Secondly, the route planning should consider the economy. That is, airlines should reduce costs as much as possible on the premise of ensuring service quality, so as to obtain profits. Based on this, routes should also follow the principle of proximity when planning, because this can reduce fuel consumption and save time;

3) Finally, the route should be planned with safety in mind. That is, considering that the climate and environment of each region of the world are different, the airspace range with stable climate and high visibility should be selected as much as possible when planning the route.

Mainly because the world map is for easy viewing, so the actual location is different from reality, and the direct flight routes in the real world look like they are going around in circles on the map.

For the sake of safety, sometimes the risk at sea is relatively large, and this is done to ensure safety.

With the development of the times, every country is constantly committed to research and innovation to make something more high-tech, strengthen its own strength, and make people's lives more convenient. In the past, people could only travel by horse-drawn carriages, but in modern times, "rickshaws", "classic cars", bicycles, etc.

This is because the Pacific shipping routes are not very safe and have a high accident rate.

Since the Pacific Ocean is not our flight route, we would rather go around the North Pole.

Because it may be because navigation does not support the Pacific Ocean, so it will be like this.

It's very dangerous, that's why it's not like this, I think that's the case.

Because the Pacific Ocean is not so safe, just in case something happens.

Because the effects of electromagnetic fields can cause a dangerous failure of the aircraft.

The routes of the planes are carefully calculated, not how to fly if they are near.

The Pacific Ocean is too wide for planes to fly over, probably because of the air currents.

There are many aspects to consider, such as security.