The sea area where the sea trials of the "Baiqi" were located.

On the bridge of the aircraft carrier "Baron John Yang", the flagship of the fleet, Yang Weiping sat on the sofa with a deep brow, holding a copy of the information that had just been transmitted from the intelligence department.

The U.S. Navy's Seventh Fleet has sent nuclear submarines to operate in the waters around India, the number of which is unknown, and the purpose is unknown.

With regard to the "Bai Qi" participating in the sea trials of the Grand Fleet's composite exercise, although the Eastern Union Navy did not publicly disclose it to the media, it also did not think about avoiding the military reconnaissance satellites of various countries in space.

Yang Weiping's purpose is very clear, if you want to peep, even if you want to peep, as long as you don't come to make trouble for me. Haven't you always wanted to know what our 10,000-ton drive looks like, brother, let me show you how murderous another big killing weapon of the Eastern Union Navy is.

Even if the US imperialists learned about the naval trial exercise of the Eastern Union Navy through a satellite peep, and then sent ships from the Subic naval base, which is the closest to the Andaman Sea, to conduct long-distance observations, it was too late in time.

However, this intelligence shows that there are already US nuclear submarines operating off the coast of India, which shows that the United States has begun to step up reconnaissance and probing operations against the Eastern Union Navy before this.

Perhaps, the sudden loss of contact with the 901 boat an hour ago is likely to be related to the nuclear submarines of the Americans.

For the Dahan-class attack nuclear submarine, Yang Weiping still has full confidence. As long as Ning Yuanhang, the captain of the 901 boat, does not make a low-level mistake or mistake, the US Navy's Los Angeles-class attack nuclear submarine is better than the Dahan-class in terms of maximum diving depth and sneaking speed, and the 901 boat can advance and retreat freely.

The Dahan-class attack nuclear submarine is a new attack nuclear submarine developed by Yang Weiping specifically for the Seawolf-class attack nuclear submarine of the United States imperialism, absorbing the technology of the Soviet Typhoon-class nuclear submarine, supplemented by Yang Weiping's understanding of the technology of the Huaxia 093 nuclear submarine in later generations, coupled with the world's top electronic technology of the Eastern Union Union, and the cooperation with the Soviet Ruby Design Bureau.

Considering that the Cold War pattern will eventually be replaced by a multipolar one. Yang Weiping put the basic design ideas of the East Union Navy's attack nuclear submarines as dealing with regional warfare, using submarine-launched missiles to attack land targets, engaging in anti-submarine warfare along the coast, providing support to special forces, and serving as direct support for aircraft carrier combat formations.

Therefore, the design idea of the attack nuclear submarine of the Eastern Union Navy is to be multifunctional and multi-purpose. In addition to retaining and enhancing the quietness of the Typhoon-class nuclear submarines, the Dahan-class attack nuclear submarine has not pursued the ability to dive at high speed and at great depth.

Rather, it improved the noise reduction technology of the Soviet Typhoon-class nuclear submarines, appropriately reduced the maximum speed, developed a new combat command system, and reduced the load of weapons on the submarine and the speed of delivery of weapons. Reduce the maximum depth of the dive and reduce the number of crew members.

The Dahan-class attack nuclear submarine borrowed the advanced technology of many Typhoon-class nuclear submarines designed by the Ruby Design Bureau, as well as the technology of the later Huaxia Type 093 nuclear submarines, to ensure that it can adapt to shallow water activities and maintain the advanced nature of the next century.

In order to operate in shallow sea waters, and to consider surface reconnaissance and cooperation with surface ships, the Dahan-class is equipped with advanced photoelectric mast periscopes. The tip of the new periscope was equipped with various optical and electronic equipment, but the mast itself was arranged inside the command station enclosure outside the pressure-resistant shell and did not penetrate the pressure-resistant shell.

The signal observed by the periscope can be transmitted to the display on the display console in the cabin via guò optical fiber, which can be flexibly raised and lowered. It is fully functional, and at the same time, it also brings more convenience to the design and layout of the submarine.

Dahan class is also equipped with an advanced degaussing system, which can be supplemented at any time to reduce magnetic flux. In addition, a lightning protection system is also installed, which can detect and evade mines laid by the enemy in time.

In addition to adopting stealth technologies such as laying silencing tiles and equipping ultra-quiet low-noise reactors, the Dahan class also pays great attention to the stealth design of the command station enclosure to reduce the possibility of being detected by radar when it surfaces.

Another feature of the Dahan class is that it implements the design principle of reducing manufacturing costs, and fully absorbs the advanced technology of the Typhoon-class and Ohio-class submarines. For example, low-noise silent reactors, delta IV anechoic tiles, special rubber hydroacoustic silocene tiles, torpedo tube design schemes, pump jet thrusters and various stealth technologies, etc., to save research and development costs.

Nuclear power is designed to be life-cycle without refueling. This can save at least hundreds of millions of dollars in life-cycle costs.

Computer-aided design tools and modular concurrent engineering design schemes are widely used to make the whole design convenient and economical.

In addition, an open C3i system structure has been adopted, and some civilian products have been used in electronic equipment, which has significantly reduced costs.

Due to the modular design, the overall design of the Dahan class not only adopts a modular independent hull structure or deck in terms of power, control, weapons, etc., but also can be based on different tasks. Assemble different structural modules to form different types of submarines, so that the basic type of Dahan-class can be quickly expanded to other types of submarines.

The Dahan-class is equipped with a module for launching ballistic missiles, which allows it to be converted into a ballistic nuclear submarine and a strategic nuclear strike force. There is also a cabin area module for accommodating special operations personnel. So that the Dahan class can have the delivery capacity of special operations submarines.

This modular design concept not only contributes to the lifetime cost of the system, but can also have a profound impact on overall defense cost savings.

For this reason, he won the sincere admiration and praise of the designers of the Soviet Ruby Design Bureau who participated in the construction of the Han-level research project, and they all felt that the trip was worthwhile. And this also led to the later Russian Boreas strategic nuclear submarines designed and manufactured in advance in the Soviet Union.

The Dahan-class attack nuclear submarine, with a length of 108.5 meters, a width of 10.2 meters, a height of 9.3 meters, and an underwater displacement of 7,500 tons, is equipped with a TG/OK-750 pressurized water reactor and two coaxial TGQL-82 steam turbine-driven pump jet propulsion, which can ensure that the nuclear submarine of this class reaches a maximum speed of 29 knots underwater.

This maximum speed index is not only lower than the maximum speed of 33 knots of the US Navy's Los Angeles-class nuclear submarines and 35 knots of the Seawolf-class nuclear submarines, but even a little lower than the maximum underwater speed of 30 knots of the Sturgeon-class attack nuclear submarines.

On the surface, this seems to be a backward design. However, Yang Weiping insisted on his own point of view, and stressed that the underwater speed of this Cheng Dù is enough to ensure that the Dahan-class attack nuclear submarine is competent to deal with conventionally powered submarines and perform a variety of tasks in various sea areas of the world, especially in shallow waters.

The maximum depth of the Dahan-class attack nuclear submarine is 260 meters, which is nearly double the 450-meter depth of the Los Angeles-class attack nuclear submarine and 340 meters different from the 600-meter depth of the Seawolf-class attack nuclear submarine. However, this further demonstrates Yang Weiping's forward-looking thinking on positioning the Dahan-class as focusing on engaging in combat activities in shallow waters.

Moreover, the cost price of 1.06 billion Asian dollars per ship of the Dahan class is compared with the cost of more than 3 billion US dollars per ship in the Los Angeles class and nearly 1.2 billion US dollars per ship in the Seawolf class.

It's just that at this moment, Captain Ning Yuanhang, who is in the command position of the 901 boat, doesn't feel that he is commanding a cheap "backward" nuclear submarine.

As the most outstanding submarine commander of the Eastern Union, Ning Yuanhang has a very thorough understanding of the tactical positioning of the Dahan-class attack nuclear submarine.

The most particular thing about submarines is to hide, take them by surprise, and suddenly use cold arrows. And the submarine that is discovered, no matter how deep you dive and how tightly you hide, it means failure.

No matter how fast you run underwater, you can't go faster than other people's anti-submarine aircraft and surface ships.

After confirming that the other party was a Los Angeles-class attack nuclear submarine of the US Navy, Ning Yuanhang decided to sit in this shallow sea with a water depth of only about 270 meters and wait for the guests to come to the door.

The reason why he dared to challenge the Los Angeles-class attack nuclear submarine of the US Navy was that Ning Yuanhang's biggest reliance was on the advanced sonar, noise reduction, and electronic computer technology of the Dahan-class.

Not long after Ning Yuanhang ordered the 901 boat to turn off its engine and sit at the bottom, inside the SSN699 Jacksonville attack nuclear submarine, which was heading at high speed towards the direction where the 901 boat was located, the sonar officer suddenly issued an alarm: "We have lost the signal!"

Robinson looked down at the route map on the plexiglas panel, followed by the command: "Continue to accelerate and maintain contact with the Indian Navy!"

"Yes! Keep speeding up!"

Crowle, a submarine staff officer who had been staring at the nautical chart study by the side, suddenly reminded in a low voice: "Captain, if that signal is really a submarine, it will be dangerous for us to do this." ”

"Young man, do you think that even if the other party is a submarine, in this world, who dares to take the lead in attacking us?" Robinson waved his hand confidently and smiled: "India is now our ally, if it is really a submarine, it is likely to be a submarine of the Eastern Union Navy, then we need to openly provoke it!"

"Captain, don't forget, behind this OUEC submarine is a huge aircraft carrier battle formation. "Our mission is not to ......challenge a large fleet with a submarine," said Crowle, sternly.

"Young man, do you think the people of the Eastern Union will take the initiative to provoke us?" Robinson interrupted the staff officer's words with a confident smile: "Under the circumstance that we take the initiative to identify ourselves, the Eastern Union Navy will never dare to take the lead in attacking us, unless they want to provoke a war! Claure, please remember that in this world, no country dares to openly attack the US Navy! Not even the Soviet Union dares to do so!"

After finishing speaking, Robinson seemed to suddenly regain his confidence, waved his hand and said loudly: "Full speed ahead, depth 200!"

Staff Officer Crowle, who was choked by Captain Robinson and speechless, could only walk to the sonar control platform and ask in a low voice with an expressionless face: "Is there a result of sonar recognition now?"

"Not yet, Staff Officer Crowle, but we're confirming. Due to the loss of signal, we are not able to make further judgments for the time being. ”

"I need to confirm if the other party is an Eastern Union nuclear submarine!" Crow sighed helplessly. (To be continued......) I1292