Why are Chinese nuclear submarines, once ridiculed by Western countries like "submarine tractors", now almost nowhere to be seen, and for nearly 10 years, the United States has not even found a single one, has China hidden all these nuclear submarines?
As a weapon that can hide underwater to launch attacks on the enemy, with the advantage of coming and going without a trace, it is extremely lethal and is one of the most important equipment in the modern navy. Whether it was the "wolves" of the German Navy in World War II, or the "wolves" under the sea of the Soviet Navy, they both caused great oppression to their opponents.
(Nuclear submarines are the most threatening weapons at sea)
However, such a powerful equipment also has a very "fatal" disadvantage, that is, it is very noisy. Continental nuclear submarines were once plagued by this problem, and the operation of nuclear reactors and engines can make loud noises, which can easily reveal their location, but recently the United States suddenly discovered something unusual.
1. For almost 10 years, not a single Chinese submarine in the United States has been found
Many people know the research and development process of China's nuclear submarines, and in the context of no technical foundation, scientific researchers have overcome many difficulties to create a nationally produced nuclear submarine, and the hardships and hardships must be understandable to everyone. Under such circumstances, it is inevitable that the nuclear submarine we have developed has some shortcomings.
At that time, the US Navy did not have a high opinion of Chinese nuclear submarines, and even often joked that when Chinese nuclear submarines left the Qingdao base, the US military in Sasebo, Japan, could hear the movement. It is conceivable that although China's nuclear submarines solved the problem of starting from scratch, the problem of how to really hide in the sea without detection has not yet been solved.
But in recent years, we have rarely heard similar jokes from the U.S. Navy, which has not found a Chinese nuclear submarine in the Pacific for nearly 10 years. Some people may want to say whether the United States deliberately concealed the traces of Chinese nuclear submarines after discovering them, so that it could catch us off guard after the war.
(Chinese nuclear submarines appear only when they want to appear, and when they don't want to appear, no one can find them)
According to such a high-profile style of the United States, once they discover the traces of Chinese nuclear submarines, they will definitely not be able to keep secrets, and they will not be able to tell the world as soon as possible and show off how powerful they are. What's more, finding other countries' nuclear submarines and publishing them is not only the most effective propaganda for its own strength, but also the most powerful deterrent to its opponents, so that the United States will not miss such an opportunity. As for why the US military has not released news about Chinese nuclear submarines in the past 10 years, the only possibility is that they really did not find it.
2. Submarines in "stealth cloaks", the United States does not have them
Underwater, the only way to find each other's nuclear submarines can be detected by sonar, and while improving engines, propellers and adding floating raft devices to reduce noise, mainland researchers have also created a "stealth suit" for submarines, and submarines using this technology can hardly be detected by sonar.
This world-leading noise reduction technology was developed by Beijing Institute of Technology, and with this technology, the noise reduction capabilities of Chinese submarines are far apart from other countries. The most critical thing in this technology is a material called "terbium (tè) dysprosium (dī) iron", it is worth mentioning that this material was first developed by the United States, that is to say, an invention of the United States more than 50 years ago, helping Chinese submarines put on "stealth clothing", I am afraid that the Americans themselves did not expect it.
(terbium dysprosium iron material, made into submarine "stealth suit")
This material is characterized by the ability to freely convert electrical and mechanical energy, which is made into a thin sheet and then attached to the surface of the submarine, and the working principle is similar to our common "noise-canceling headphones". Terbium dysprosium iron can convert and cancel the sound wave signal after it is sensed, achieving the effect of "acoustic stealth".
The material terbium dysprosium has actually been developed by the United States in the 70s of last century, but they have not made any achievements in related fields, but in the hands of BIT, terbium dysprosium iron has become a winning weapon, and until now, no second country in the world has mastered this technology.
3. In the future, Chinese submarines are the real "black hole of the ocean"
It can be said that the noise reduction technology of Chinese submarines has now come to the forefront of the world, and it is useless for the United States to throw more sonar into the sea. It is understood that this material is connected to the computer on the submarine through a special cable, which can not only eliminate the sonar detection signal from the outside world at the first time, but also play the role of a sonar transmitter to actively search for other submarines hidden on the seabed, killing two birds with one stone.
In addition, the use of terbium-dysprosium iron materials in submarines will emit corresponding noise will be correspondingly reduced, greatly reducing the possibility of being detected by enemy passive sonar, and the impact on the life and life of submariners is also greatly reduced.
(It won't be long before China's nuclear submarines become "ocean black holes" with strong stealth and strike capabilities)
The noise reduction method of terbium iron material is considered a physical means, and this material can emit acoustic signals of many frequencies, so theoretically, this noise reduction method cannot be cracked. Type 091 attack nuclear submarine development time earlier, very noisy, the 403 and 404 submarines in this type of submarine have not yet been decommissioned, but in the past 10 years have never been discovered by the US military, so it seems that terbium dysprosium iron material is indeed a bit powerful.
Some people will ask, since the United States was the first to discover the existence of terbium dysprosium, why did it not use further meals, but let China take the lead? The answer is very simple, the words terbium and dysprosium are very rare earth elements, or heavy rare earth elements, China has the largest output, and the smelting technology is also the first in the world, there are sufficient materials and advanced technology as a basis, Chinese engineers can use their imagination to put on the submarine "stealth suit". In the future, Chinese submarines may be the real "black hole of the ocean".
4. Dangers abound, and it will not be easy for Chinese nuclear submarines to go to sea
It should be noted that even with the blessing of the "cloak", China's nuclear submarines still have to face many crises, and it is not an easy task to enter the Pacific Ocean. Previously, American military enthusiasts said that they saw nuclear submarines from Hainan Island in commercial satellite images, although this news is not confirmed, but it is certain that Chinese nuclear submarines will always be one of the key projects of the outside world.
(Chinese nuclear submarines broke the waves, and after putting on the "cloak" they moved more smoothly)
The reason why commercial satellites can find submarine tracks, on the one hand, is that the depth of diving when the nuclear submarine has just gone to sea is not too deep, coupled with a certain degree of transparency in the seawater, if the satellite just passes from above, it is entirely possible to see the figure of the nuclear submarine. Similarly, it is not difficult for China's commercial satellites to see foreign nuclear submarines entering and leaving ports in the same way.
The vigorous development of space technology has completely changed the way humans perceive the world, and the military operations of various countries have also been affected, all of which are likely to be seen by the "eyes" in the sky. In order to avoid being photographed by satellites, on the one hand, you can choose the time slot of the satellite to enter and exit the port when the satellite is overhead, or you can take advantage of the cloudy days and nights when the lighting conditions are not good. Of course, if economic conditions permit, some new caves can be built, so that the submarine can dive to depths invisible to optical satellites in the cave and then dive into the sea.
Foreign countries have not stopped looking for Chinese nuclear submarines, there are satellites in space, various reconnaissance aircraft in the sky, and the United States has thrown so many sonar into the sea, and these equipment are dedicated to finding the figure of Chinese submarines. Even if they wear the "cloak of invisibility", China's nuclear submarines are still full of dangers and must always be vigilant.