China has not concealed the German questions. Its interests have been very clear when sending submarines to the North Atlantic Ocean. The relationship between China and Germany has been gradually established in the past few years. Although there is business, it is more about China's support for Germany.

China is not short of people with a perspective on the overall situation, but it is just a mystery deep in the mystery and has not broken free. In the environment like the Republic of China in history, some people can see clearly that China's great enemy must be Japan and can compromise with any kind of compromise, but it cannot be Japan. The distance between China and Japan is too close. As long as one side rises, the other side will inevitably be a stepping stone.

China and Germany are thousands of miles apart, and there is no conflict of interests in the middle. They are natural ally in the distance and attacks near and near. Especially when Germany almost challenged the entire great powers with its own strength, even the somewhat slow Chinese senior management can see that.

The power of Britain is obvious to all in this era, especially the power of the oceans and colonies. Any country must rise, and there is no room for its rise in this world, either relying on powers like Britain, just like Japan once upon a time.

China is a great power with a completely different background from Japan. Great powers will inevitably rise. Napoleon, who was scattered throughout Europe back then, once said that China is a sleeping lion. Although there is an exaggeration, it can be seen from the word sleeping lion that Napoleon was afraid of China. Once such a huge country with infinite wealth embarked on the road of industrialization and has modern industry, what kind of power will burst out?

In fact, what Yang Yuanzhao did in Baotou is just an introduction. What really made China rise is the foundation of a great power and its huge population. As long as it embarks on the right path, it will roll towards this path.

China is booming and China is developing rapidly, but the wise still see the problem. With the extreme development of the country, if China wants to gain enough status, it must expand outward, and it will inevitably face the old powers.

White people have ruled the world for many years. If the Chinese emerged in times of world peace, they would inevitably be hit by the whole world. Even if China has Yang Yuanzhao and all-in-one aircraft, it would probably be quite difficult when facing the world's blow. It may be possible to win, but the price paid is too much.

When the European war broke out and Germany began to challenge British hegemony, the wise saw the opportunity. Yang Yuanzhao's support for Germany received support from many people. Otherwise, the huge amount of support would not be available at all. The nine battleships of the Scher fleet, even the Chinese navy, were not equipped, and the acquisition of cultural relics plans and manpower plans. Although these have actually increased China's strength and foundation, in this era, it is not essential. Only by letting Germany stand in front and let Germany fight against the great powers led by Britain and the United States, China's rise is not so abrupt, and even if there are some out-of-standard places, it is not easy to cause problems.

In fact, China has gained a lot of benefits in this initiative. The establishment of Lan Fang, the occupation of the entire Southeast Asia, and even Siberia, can be said that China's current huge territory is almost directly related to this initiative. The contribution of the soldiers' bloody battle cannot be erased. However, if it were not for Germany, it would be impossible for China to achieve so many results so quickly under the premise of China's confrontation with the entire world.

It is precisely because of this that China almost meets all the requests for Germany. When Germany was hit by sonar and the submarine troops suffered heavy losses, sending submarines would inevitably attract Germany's attention. At that time, there were two ideas. One was that China was just like this. How could the Allies be optimistic about it? In short, it would be suspicious. It is likely that it would be considered by Germany. Another idea was to implement it now.

This is taking into account the overall situation. The close relationship between Germany and China is not suitable for the moment. For a small submarine, it is unwilling to see that the top leaders do not want to see it. It is not that the submarine is not important. Submarines are a terrible weapon. If you really develop the submarine technology to the extreme, such as reducing the noise to about 90 decibels, it is probably China's new generation of sonar. Such a submarine will become a black hole in the ocean, become the most powerful attack weapon on the seabed, and may even threaten the aircraft carrier combat group developed by China's main force in the future.

However, the arguments of experts from the naval field convinced the senior management that although the submarine's sound has dropped now, reaching 110 decibels, which is only one step away from the 90 decibels ocean black hole. However, this step is not so easy to take. The reduction of decibels was relatively easy at the beginning. No one thought of this problem before. Even Germany, which has no accumulation, has dropped from 220 decibels to 180 decibels in a short time, but to below 120 decibels, the effort required for each reduction of one decibel is more than 10 times the previous one.

Mechanical creation involves the collision between water and steel. No matter how much fluid mechanics are considered, it is difficult to reduce every decibel before the body shape has a big breakthrough. It is really harder to reduce the 110 decibel version of Germany without giving them systematic concepts and knowledge.

The most important thing is that sonar is no longer the only tool for China to discover submarines. China has started researching, dragging sonar, and even entering the field of underwater radar. Using higher antennas and larger networks to discover a point in the network. Later generations discovered a key thing in underwater submarines, with huge investment, but it is a natural advantage without others realizing it.

There are very few explanations in the telegram, but simple things, such as attracting the existence of tiles in the entire submarine, can absorb the noise inside the submarine as much as possible without increasing the submarine sound. This is a big project, and the other is a dual system. Currently, the ocean submarine in Germany still uses diesel engines. Not only does it require a lot of air, but the underwater running time is compressed to a very short level. It must be ventilated every once in a while, which is also the fundamental reason why he is often discovered.

The Qin-class in China designed a dual system, which means that the air in the submarine can ensure the breathing of the submarine personnel. Large compressed air cylinders can accommodate huge amounts of air. This is also the fundamental reason why the Qin-class submarine can sail underwater for a long time. It does not use any power system underwater, but turns to the push of batteries and motors, directly reducing the noise to several levels. In addition, in terms of fluid mechanics, the modification of the propeller will reduce the sound generated by the propeller cutting waterline without reducing or reducing kinetic energy. These are combined together to make the Qin-class brilliant.

After reading it, the Germans realized that they were wrong. Double power is one aspect. It was like a window paper, and it was broken with one poke. However, Germany did not expect that from this, the decibels can be reduced from 180 to below 150. The sound emitted by the underwater power system cannot be completely removed even with sound-absorbing tiles. In addition to this aspect, the other aspect is fluid mechanics. Using fluid mechanics can solve the problem of water resistance, especially under certain velocities. The resistance generated by different velocities is different. Use fluid mechanics to change the structure of the ship, and the unused hull structure, of course, also includes underwater sound, using multi-faceted processing to reduce the hydraulic cutting method, which greatly reduces the appearance of sound.

To be honest, the submarine experts who can sit here are all German submarines and even ship masters. They have a very deep professional philosophy. After the sonar appears, they also devoted themselves to researching how to reduce the sound of submarines to avoid the sonar exploration and achieved some results. However, compared with these, it is far worse. They tried their best to reduce the sound from 220 decibels to 180 decibels, and they did not do well in sound insulation. Next, each step was extremely difficult. Some experts even believe that it is almost impossible to reduce the possibility of submarines being discovered from sound. Sonar is the natural enemy of the submarine. The submarine is either going to armor, or just like a torpedo boat, speeding up and using torpedoes to fight.

But I never thought that China had already had a solution, not only reducing the amplitude of the sound to 110 decibels, but even moving towards the most terrifying ocean black hole of 90 decibels. In the field of weapons, China is no longer the same state as learning from Germany. They have surpassed the blue ones in their original state.

Countless new knowledge made the Germans unable to stop. They also wanted to get more from China, but these were not solved by simple telegrams. After a brief exchange, Germany had basically determined the strength of the Qin class. If there was a certain breakthrough in these aspects, there would be no problem in making the Qin class. This proves that the power of this submarine is not a problem with placing an order. Germany is safe and proposed to board the Qin class to take a look, and asked the Chinese submarine to give a simple exercise to allow the German navy to experience the performance of the submarine at a close distance.

In this regard, China had long planned to export the Qin-class, so it agreed. Both sides were waiting for the return of Fleet A, and then they would conduct a simple exercise on this aspect. Only after the exercise would they determine how many submarines were imported, an order that had a huge influence on the entire European war. In this way, after several telegrams, it was finally confirmed that a weapon that scared the Allies again appeared on the European battlefield. In the future, its impact on the war between the two major groups would be greater than a perfect battleship like the Fantasy class. (.)
Chapter completed!