B-2 bombers have been in service for more than 20 years. Why is there no country copying?

B-2 bombers have been in service for more than 20 years. Why is there no country copying?

American military equipment is all over the world. Many countries borrowed manufacturing technology after purchasing it. At the same time, some countries have succeeded, but there is a bomber in the United States, and no country has copied it successfully so far.

This bomber is the B-2 bomber. Because it has never been copied successfully, this bomber has a resounding title-seeking defeat alone. This kind of bomber is a stealth bomber. The reason why it is difficult to imitate is because the cost is not generally high and there is no capital, so it really can't afford to play.

B-2 bomber is the only stealth strategic bomber in the world today, and its stealth capability is naturally very strong. This bomber can attack through a strict air defense system. In addition, the stealth of B-2 is not limited to radar detection, but also includes reducing different signals such as infrared, visible light and noise, thus minimizing the possibility of being detected and locked.

Therefore, it seems that it is not so easy for ordinary infrared rays to detect this bomber. Judging from the attacks of these air defense systems, it is impossible to have such a superb attack system without any technology.

Let me talk about the overall design of this bomber first. B-2 bombers are different from traditional bombers. This bomber has no vertical tail and is yaw neutral, which means that when the B-2 turns left or right, it will not generate aerodynamic force. 、

In addition, the speed brake-rudder patented by Northrop is responsible for the yaw control of B-2 at the trailing edge of the outer wing section, and the speed brake-rudder can be cracked up and down, and can also be used as a speed brake, and can be used as a rudder in asymmetric cracking. Because of the existence of the boundary layer on the surface of the flying wing, the speed brake rudder needs to crack at least 5 degrees to work, so in normal flight, the speed brake rudders on both sides are in the open position of 5 degrees, and can work immediately when it needs to be manipulated.

Without rigorous attitude and persistent determination, such a complicated design could not be made at all. Even with this technology, financial resources are still a problem. You know, it takes hundreds of millions of parts to build such a bomber, plus the cost of hiring engineers, 7788 will cost at least 2 billion. Although the United States has deep pockets.

The United States also spent a lot of money to build this bomber, not to mention other countries. There are only a handful of countries that have both technology and financial resources, which is one reason why this bomber has not been successfully replicated so far.

As the B2 bomber is the most advanced strategic bomber in the world, it is also called the ghost in the air. This bomber is powerful enough to destroy the world, so its technology is so rebellious that it is called "putting all your eggs in one basket". It can be seen that the United States can build such a bomber, which shows that the technology of the United States is also quite powerful. At the same time, no other country can copy it for such a long time, which is enough to see how tight the blockade of technology in the United States is.