Automotive Black Technology Chapter 1165: : Silence the submarine!

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Things go back to a month ago.

After Zhengxin collaborated with Yishu Group to build islands in the South China Sea, the maritime patrol line in the South China Sea that had been previously blocked was fully opened. A certain Chinese submarine force stationed near Sanya reorganized its cruise route and began a cruise route in international waters starting from the South China Sea after a lapse of more than ten years.

The submarine force in Sanya is affiliated to the South China Sea Fleet of the Chinese Navy. It is equipped with a Han-class nuclear-powered boat, a Xia-class ballistic missile nuclear-powered boat, and two Song-class conventionally powered submarines. In addition, there are more than ten R-class boats that have been in service for more than fifteen years.

Except for the Han, Xia, and Song submarines, which are the three more advanced new-generation "Guohao family" submarines independently developed by our country, these submarines are all outdated and facing elimination.

In order to meet the increasingly complex international maritime environment, the fleet recently introduced a batch of "Song of Warsaw".

This kind of submarine was originally the most successful conventional submarine developed in the Soviet Navy era. It is mainly used for anti-ship and anti-submarine warfare in shallow offshore areas and is famous for its powerful firepower and low noise. After modernization and other modifications by Russia, the Kilo-class improved version was formed. It is currently one of the quietest diesel-electric submarines in the world.

After adaptive transformation, this batch of conventionally powered submarines joined the South China Sea Fleet to perform cruise training missions.

On the day Li Fanyu became famous in Japan, a scene that shocked the Chinese Navy occurred;

On the same day, one Han-class attack submarine and two Kilo-class conventional-powered submarines from South China Sea Fleet Submarine Formation 3 dived and sailed from the south of Apo Reef to international waters.

But less than an hour after entering international waters, the Kilo-class 079 boat in charge of navigation discovered that there were continuous active sonar detecting the formation.

Soon, another Kilo-class 080 boat also found its position exposed.

After three hours of trying to escape, the formation still did not leave the opponent's sonar detection range.

Among them, the 054 boat encountered an underwater cliff during its emergency dive. Although it escaped under the emergency response of all officers and soldiers on the boat and escaped the tragedy of being crushed by force, the boat still suffered serious damage. .

During this period, the three submarines encountered seven simulated attacks. In other words, if the other side had not wanted to fire, the three submarines would have sunk seven times!

After the 054 boat had no choice but to surface, it was discovered that it was only a maritime anti-submarine aircraft with an American flag printed on it that conducted active sonar detection of the formation and launched a simulated attack!

Although there was no danger of life, this incident made the entire South China Sea Fleet and Xing Yaxin, who was stationed in the fleet conducting submarine testing and research and development work, feel like they had fallen into an ice cave.

This also means that the secrecy and suddenness that the submarine force relies on for its survival are gone!

The belief that I had held on to for twenty years suddenly collapsed at that moment. Xing Yaxin stayed awake for more than three weeks and barricaded himself in the research and development room.

Seeing that his condition was extremely bad, he was in danger of sudden death at any time. The head of the entire naval bureau gave the order to kill him and forcefully put him on a transport plane to "transport" him back to the capital to visit his relatives.

Although the person is back, Xing Yaxin’s soul is still in the South China Sea.

The three submarines in the formation at the time of the incident are all considered to be relatively advanced models among the submarines currently in service. Among them, the underwater noise of the Han-class and powered submarines is only 85 decibels, while the two Kilo-type conventionally powered submarines are diesel-electric powered conventional submarines, but their noise is also around 90 decibels.

Currently, the most advanced military sonar detection network known in the world can detect the lowest sound source of only 90 decibels. But it doesn’t mean that it cannot be detected if it is below 90 decibels, but the noise inside the ocean can be as high as 90 decibels. As long as the underwater noise of the submarine is around 90, it can blend into the sea and blend with the heartbeat of the vast ocean.

So there is a general consensus among experts in the world's submarine field - as long as the noise of a submarine is lower than 90, it has reached the "stealth standard."

After these days of hard thinking, Xing Yaxin concluded that the United States must have invented a sonar network that can detect and distinguish seawater and submarine noise, and applied it outside the South China Sea!

So this man in his forties had nothing in his heart from that day on. There is only one thought left - silence the submarine!

……

Xing Yaxin’s home in Beijing.

Although I haven't been home for a long time, my daughter must have come over often to clean, so the house is still tidy. On the bedside in the bedroom, in the yellowed photo, young Xing Yaxin's smile is still so bright.

But Xing Yaxin, who was sitting on the bed, had a face full of vicissitudes of life.

While he was looking at the photo, his phone rang.

"Reporting to the head, we have investigated clearly the information of the motor mounted on the Zhengxin BMW 5 Series. The motor model is LS-551, which uses active noise reduction technology that Zhengxin has completely independent property rights. Within the normal power output range, the noise is The minimum is 15 decibels

The production location is Zhengxin Industrial Base in Binhai New District, Tiancheng City. Currently, 7,721 units have been installed, mainly used in three models of 5 Series sedans under the BMW brand of Zhengxin.

According to our investigation, the production of this motor requires 32 kinds of raw materials. Except for the core component of the permanent magnet rotor, which is mainly produced from a rare earth mine in the Republic of Nan Fei, the rest of the materials are supplied domestically. These suppliers include..."

The report on the phone was very detailed, ranging from motor parameters to the supplier of a screw. After the ten-minute report, all the information about Zhengxin permanent magnet motors was already displayed in Xing Yaxin's mind.

At this time, the tiredness on Xing Yaxin's face disappeared, and a faint smile appeared on the corner of his mouth.

"Help me contact the person in charge of this Zhengxin group. I need to meet with him. Immediately, immediately!"

Xing Yaxin ordered to the phone.

"Um..." There was some hesitation on the phone.

"Is there any difficulty?"

"Reporting to the chief, the target person is currently in Class A protection status. We do not have the authority to find out his specific location."

"A-level protection?" Xing Yaxin hissed. Of course he understood the meaning of this code name. As a senior national defense researcher, he himself has been in this state all year round.

That means that the target person is no longer in a normal city. It is a place that exists in China, but will never be shown on the map of China.

……

"A sneeze!"

In a building that didn't even have sunlight, Li Fanyu sneezed hard.

"Mom, how many meters underground is this broken ground?"

Feeling the coldness around him, he muttered as he looked at the two zombie-like guards in front of him who had as gloomy faces as the environment.