Great warships

Chapter 1267 Yes, I must!
Everything was settled, and now it was time to drink.

"Qin, we haven't had a good drink together for a long time." Looking at the wine pouring out, Nicholas's face had a complicated expression.

"Yes, in the past few years, my movements have been greatly restricted. No matter where I go, I have to be on guard against assassination. It's not as free as before. Back then, I dared to go to Vladivostok with a few men."

"Yes, those days..." Nicholas also recalled the past.

Why are memories of the past always the best?

Because there are so many worries now!
"Qin, the higher-ups have decided to give you the task of repairing the Type 949 nuclear submarine, but we don't know when the funds will be raised." Nicholas said, "So, you don't have to worry too much."

"In fact, it's not that difficult to collect this money."

"Really? Tell me about it." Nicholas' eyes were full of anticipation.

"Looking for Ah San!"

"Tell me, how do we cheat Ah San?" Nicholas' eyes were bright.

That night, in the capital, Huanglou.

After seeing Nikola off, Qin Tao came here. Seeing his father-in-law busy at work, he did not disturb him and sat directly on the sofa beside him, waiting quietly.

"gone?"

"Well, let's go."

"Do you feel that Nicholas is a lot more unfamiliar now than before?"

"Yes, Nicholas's status is getting higher and higher, his power is getting bigger and bigger, but he is becoming more and more unfamiliar." Qin Tao said: "People are like this, the higher the position..."

At this point, Qin Tao glanced at his father-in-law and quickly changed the subject: "By the way, Dad, the Type 949 nuclear submarine that the Russians are going to send over for modification is still going to be equipped with a weapon system. If I'm not mistaken, it should be a brand new missile to replace the Granite anti-ship missile. This missile is likely to be a hypersonic missile. Do we have similar weapons?"

The Russian Zircon missile is still very powerful, with a speed of Mach 5 and a cruise trajectory. What about us? Do we have similar products?

The Eagle Strike-12 and Eagle Strike-18 have been developed for several years. Have the relevant units made further progress?
Wu Shengli glanced at Qin Tao and said, "You have been saying that we should export advanced anti-ship missiles to earn foreign exchange, but we have never agreed. Are you waiting for more advanced anti-ship missiles to come out so that you can sell those advanced missiles openly?"

"Our Mingzhou Group does not produce anti-ship missiles. If we sell them, it will only make money for our brother units. What does it have to do with us?" Qin Tao quickly denied.

"Tell me, what benefits can we get from renovating the Type 949 nuclear submarine for the Russians?"

"We can further control the Russians' industry. Their shipbuilding industry has been completely abandoned. In the future, we will have to build all kinds of ships they need. Now they can't even repair them, and they have to help us. In this way, the relationship between the Russians and our strategic partners will be even deeper." Qin Tao said: "It's better to make friends with the Russians than to be their opponents."

Wu Shengli nodded: "Under the current situation, the Russians should choose to be our friends. In the future...the Russians' shipbuilding industry is completely ruined. Their navy needs us, so they must continue to maintain a good relationship with us. Even if Nicholas leaves and is replaced by someone else, they will never turn against us."

Nicholas plays a big role in the current friendship. What if he is replaced in the future? As long as their navy needs them, they will still maintain a good relationship.

"Now, as long as we can help them repair the Oscar-class nuclear submarine, we will be able to repair other nuclear submarines in the future, and we will also be able to fully master the technology of the Russian nuclear submarines. For example, we will be familiar with the performance of the nuclear submarines that India has leased from the Russians."

Wu Shengli was stunned: "Asan is going to rent a nuclear submarine from the Russians again?"

India has always wanted to have a strong navy, but its domestic industry is not strong enough, so it can only improve its strength through purchase or leasing. In terms of submarines, the Indian Navy can only lease Russian nuclear submarines to satisfy its vanity.

At the beginning, in the late 670s, the Indian Navy leased a Type 1 nuclear submarine and named it Chakra-. At that time, India was very excited as it finally became the sixth country in the world to own a nuclear submarine!
However, this submarine was too old after all, so after the expiration of its lease in 92, India returned the nuclear submarine.

Later, Qin Tao and his father-in-law went to the Russian base and threatened to rent a Type 971 nuclear submarine. Asan became anxious and also wanted to rent it. However, this type of submarine was still a treasure in the hands of the Russians, so they failed to rent it.

Now, the opportunity has finally arrived!
"Yes, if India wants to achieve a strong navy, it must obtain nuclear submarines. Since they cannot build them themselves, they can only rent them from the Russians. Their dreams of aircraft carriers are constantly shattered, so they can only use submarines to satisfy their self-esteem."

"You gave the old man some advice?"

"Yes, otherwise the Russians wouldn't have the money to repair the Type 949. If they don't have the money, we won't be able to get access to it. Many of the technologies on it are quite good, such as nuclear reactor technology."

The breakthrough in Dongfang's nuclear submarine technology can be traced back to the arrival of Kvasa and Krasnopolsky. As excellent nuclear reactor experts, he directly allowed Dongfang to use the advanced 150-megawatt nuclear reactor, solving the problem of the power needed for submarines underwater.

This type of reactor is considered backward by the Russians. Their current nuclear submarines use 190-megawatt nuclear reactors. Although we already have a large number of advanced nuclear reactor technologies, it is still eye-opening to get in touch with the Russians' nuclear reactors.

Combined with other submarine technologies, we can explore them all!

At this time, in the third design department of Mingzhou Group, the design drawings of the Type 949 nuclear submarine had been entered into the computer, and the computer began to improve the repair plan.

"Now, pump-jet propulsion has become a trend. Our computers have designed an improvement plan for pump-jet propulsion. The use of this new propulsion system can increase the maximum underwater speed of the Type 949 nuclear submarine to 34 knots. At the same time, the quietness can be reduced by more than 5 decibels." Kvasa introduced.

At the time when the Type 949 nuclear submarine was being developed, it was good enough to have the processing technology for a seven-blade large slant propeller, so how could there be such a thing as a pump-jet propulsion system? Even the Russians don't have it now, and it was only used for the first time on the Type 955A nuclear submarine.

In the East, this technology is already common.

"If it were other submarines, there would be no problem using this kind of propulsion system, but not the 949 nuclear submarine. Kvasa, you should know that this type of submarine has two propellers at the tail." Spasky sighed.

Generally speaking, the shape of a submarine is an elongated teardrop, with the tail being the tip of the teardrop, the rudders on top, and a propeller extending from the back.

Most of the Russian submarines are like this. Under this plan, if you want to replace the pump jet, you can just replace the propeller.

However, the 949 nuclear submarine has two conical tails at the tail, each with an axis pulled out from the tail, so two propellers appear behind the butt.

According to the Russians, this solution can improve system redundancy. In case one of the propulsion systems has a problem, the other system can be used. In fact, the Type 671 nuclear submarine also has two sets, but the two drive shafts are connected by gears at the tail, and there is a propeller at the back.

The Russians did not use this method on the Type 949 nuclear submarine because the noise from these gears was too loud, so they were forced to use a layout with two drive shafts and two propellers.

Of course, this is not incredible enough. Among the Russian submarines, there is one that uses three axes, which is even more bizarre.

Now, it is not so easy to change to pump jet.

"This is easy. In the power compartment, we connect the turbine output shaft directly to the generator. This way, all the power is converted into electrical energy, which can then drive the pump-jet propeller at the tail. We can modify the shape of the tail to make it streamlined."

"You mean, shaftless pump push?" Spassky was stunned.

The current mainstream pump-jet propulsion system is nothing more than a shell outside the propeller. This shell can reduce noise leakage and gather water flow, thereby reducing noise and improving propulsion efficiency.

It still needs to be connected to the drive shaft from inside the submarine, and as long as there is this drive shaft, noise cannot be avoided.

The most advanced solution is to remove the drive shaft and integrate an electric motor inside the pump-jet propulsor, thus creating an advanced shaftless pump-jet with minimal noise.

But... the technology is too difficult, at least Russia doesn't have this technology.

Now, looking at the surprised Spasky, Kvasa was very calm: "Yes, shaftless pump propulsion is the way to go. Don't you have this technology?"

"We don't have any," Spassky replied simply. "Do you have any?"

Kvasa nodded: "Yes, of course we have it, so, what modification plan do you plan to choose?"

"We want this shaftless pump-thrust!" Spassky said with almost no hesitation. They came here to learn advanced technology! If they mastered this technology, they could use it to improve domestic submarines.

"Okay, let's design it this way."

In the capital, Wu Shengli was still chatting with his son-in-law.

"So, you introduced all those advanced technologies to the Russians? Will they master these technologies?"

"They can't master it. If it is a shaft pump-propelled machine, they may be able to master it, but they don't have the ability to do so for a shaftless pump-propelled machine. They can't produce the permanent magnets needed for the high-power motors above." Qin Tao is very confident.

In fact, since the tail design has to be modified anyway, it is completely possible to simply connect the drive shafts of the two nuclear reactors together through a reduction gear, and then drive a water jet thruster. There will definitely be noise, but it is not particularly serious.

However, Kvasa did not introduce it in this way. He skipped this technical route and directly introduced the most advanced technology, with the intention of not letting the Russians learn it.

Only Golden Sun Motor Company in the world can produce propulsion motors with tens of megawatts!

If you want the power density of the propulsion motor to be high enough, you need to use a permanent magnet motor, which requires strong magnets. This kind of thing can only be produced in the East because it requires rare earth materials.

Over the years, Golden Sun Motor Company has developed many permanent magnet motors and has already gained mature experience. Even if the Russians disassembled the motor to study it and then imitated it, they could not produce one with the same efficiency because they could not produce this magnet.

Therefore, only our side has it!
"Once they experience the benefits of this technology, they will give up using shaft propulsion and go directly to shaftless propulsion systems, which only we can produce. In other words, we will be able to control the Russians' submarine production in the future. Of course, this is only one aspect. We still have many technologies that we can show the Russians to make them feel inferior."

Wu Shengli was speechless for a long time. His son-in-law was so awesome!
A week later, in Moscow, the capital of Russia.

"After computer-aided design, we have completed the modification plan for the Type 949A nuclear submarine." Wang Guangrong, a technician from the Third Design Department of Mingzhou Group, stood in front of the projection screen and introduced it to a group of senior officials.

"First, the sonar part can be upgraded to a brand-new sonar produced by Dongfang, including the bow sonar, the side sonar and the towed array sonar at the rear. Not only has the underwater search distance been doubled, but the resolution has also been greatly improved. With the advanced digital processing system, these sonar systems can clearly distinguish the specific location of the target and provide various basic data for torpedo launch."

The Russians have backward electronic technology, so they still don't have a broadside sonar array. Even their Type 885, or Yasen-class nuclear submarine, is only equipped with six broadside conformal sonar arrays. This number cannot be considered a broadside sonar array at all.

The more units there are in this array and the larger the spacing, the sharper the main lobe and the higher the resolution, the higher the beamforming positioning performance achieved. A true array requires at least 64 units.

The array currently used in China is 64 units, while the export model is 16 units. Even so, it is much better than the Russians' own equipment.

After listening to these introductions, everyone present opened their eyes wide.

It’s not that they don’t know the benefits of having more units, nor is it that they can’t increase the number of units. It’s easy to plug in sonar receiving devices, but the post-processing is too difficult!
As the number of units increases, the data that needs to be processed increases exponentially. The Russians simply do not have the data processing capabilities, and only the East has this ability!
"Can you describe the performance of this broadside sonar in a more vivid way?" asked an official in a suit.

This meeting is not just for the Navy. The Navy has no objection to this improvement. The key is money!

"For example, it can hear the sound of a Los Angeles-class nuclear submarine from 200 nautical miles away, and can accurately locate and guide our torpedo attack from 80 nautical miles away."

This distance is already amazing. The Americans claim that their submarine sonar search distance is three or four hundred nautical miles, which is generally considered an exaggeration.

Everyone got excited.

"What if it's the latest American Seawolf class?"

"We don't have specific data, so we can't give an answer. However, even if the data is reduced by half, it should be enough for your use."

"Yes, that's right. These sonars should be replaced. However, if we replace them with your Dongfang sonars, how can we guide our torpedo attacks? Do we have to open the weapon interface?"

This is a taboo for any arms supplier. No one is willing to share their weapons secrets with others.

"If we just need to bind the shooting data, we can do it manually. If we need continuous sonar guidance, then data exchange between the two is definitely necessary." Wang Guangrong said.

Among the torpedoes, almost half are wire-guided. When they are launched, they directly drag a wire to connect with the mother ship. In this way, they can obtain data support from the mother ship until they hit the target.

This type of attack is very similar to semi-active radar-guided air-to-air missiles. However, with the development of the times, there are more and more wake-guided, acoustic-guided, and other torpedoes. It depends on what the Russians choose.

"Actually, this is no big deal. As long as you open the weapon interface, we can make an interface program so that all your weapon systems can be matched."

Not to mention simple weapon interface data, programs for different processors can be run through this compilation method. Look at later generations, many mobile phone chips are used in computers, and there is no problem running any X86 program. It’s just compiled at the lowest level. To put it simply, it’s just a docking program.

With the rapid development of electronic technology, this can also be done on weapon interfaces. Although it will affect the processing efficiency, the efficiency is not high to begin with, so it doesn't matter.

Sonar is the eyes of a submarine. For a submarine, the most important thing is how bright these eyes are. When everyone looks at the sonar data, they feel they cannot resist the temptation.

"Oh, I almost forgot. If it is a high-speed surface ship formation, our towed sonar array can complete the precise positioning task at a distance of 200 nautical miles, which is accurate enough to guide anti-ship missile attacks."

The search distance is closely related to the noise of the target. Submarines use all kinds of methods to reduce their own noise, but surface ships do not pay much attention to it, especially aircraft carrier formations. Even if they want to reduce the noise, it is impossible because the noise when sailing at high speed is quite strong.

"We must change it! It's a modification for an experimental boat anyway, so let's give it a try!" The Russians were no longer calm.

What is the purpose of the Type 949A nuclear submarine? It is to attack the enemy's aircraft carrier!

In the past, this type of nuclear submarine was only responsible for launching missiles, and the search mission was handled by other systems. Now, with this advanced sonar, a single submarine can complete all the launching work!

Being underwater, it was already quite difficult to hear an aircraft carrier formation 200 miles away! As for whether the launch of missiles would be discovered by the enemy's anti-submarine aircraft... As long as the anti-ship missiles carried were fired at once and all enemy warships were destroyed, wouldn't they be safe?

(End of this chapter)