Great warships

Chapter 237 The [-]-ton frigate (add more, please subscribe)

Submarines listen to sounds underwater, relying on sonar, which is also divided into active and passive.

Active sonar is used when attacking. It will emit sound, and after reflecting back, determine the opponent's position, bind and shoot the torpedo. Therefore, once the opponent's active sonar hits it, it means that it will be hit by the opponent's torpedo. attacked.In underwater confrontation, active sonar is rarely used, because it is too exciting, and it is likely to misfire.

Passive sonar is like an ear, passively monitoring the target, it has three ways.

The earliest sonars were almost always equipped with a device on the bow for monitoring, because the bow of the boat is the farthest from the power cabin and has the best quietness. If you want to monitor others, you have to make sure not to be confused by your own noise.

Later, in order to obtain better monitoring effects, towed body sonars began to appear, and the lines were placed at the tail of the submarine to keep the passive sonar array away from the submarine itself, so that submarines farther away could be monitored.

However, this needs to be released, and it will be very troublesome in an emergency. Sometimes the captain has to throw away the precious sonar array and run away quickly. Therefore, there is a sonar array on the side of the hull, and the array is directly arranged on the submarine On, convenient and practical.

However, the sonar at the bow is still the most widely used, and the performance of this sonar directly determines the performance of the submarine.

The most advanced in this regard, of course, is the Americans. They made breakthroughs in the 60s. The sonar system has improved every 10 years. There is a slight noise, and the previous processing system is also very backward.

But the old Kaishan will do.

Until the collapse of the Red Empire, the Type 971, the pinnacle of the old Kaishan attack nuclear submarine, was still using the integrated bow cylindrical array sonar, and the Ajax giant spherical array sonar was not installed until the Type 885.

Compared with the cylindrical sonar, the spherical array sonar is expensive and has low processing technology requirements. Moreover, because of its small size, it occupies the entire space of the bow, and even the torpedo tube needs to be moved forward, which brings disadvantages to the layout of the entire hull system. There is no such thing as you; but the ball array sonar project is complex to implement (that is, the beam control is the most no you), the acoustic aperture is small, and the underwater acoustic performance is more dominant; in comparison, the acoustic processing procedure of the cylindrical sonar array is simple and the accuracy is poor. It is often necessary to reduce the size and power. For example, the MGK-971 system of the Type 501 nuclear submarine has a comprehensive bow cylindrical array sonar with a diameter of 8.1 meters and a height of 4.5 meters, while the spherical sonar of the Type 885 has a diameter of only eight meters.

Looking at the United States, it is said that the Seawolf class, and the Los Angeles-class nuclear submarine is already a spherical sonar.

Now, when the country wants to survey and map the cylindrical sonar under the 705-type nuclear submarine, it encounters a problem. Mao Zi actually said that he wants to develop a more advanced spherical sonar?
Zhang Lao looked at Lu Jie worriedly.

"It's still possible to rely on your technology, but the Red Empire has collapsed. There used to be a lot of old Kaishan technicians to eat and eat. You can invite us over. In that way, your technical strength will be weaker. It is even more difficult to achieve a breakthrough." Lu Jie said to Mr. Zhang: "It should be difficult to make a breakthrough under the sonar technology."

The collapse of the Red Empire is of no benefit to the country. The little guys will go to carve up the inheritance of the Red Empire, and their own side has to go down and eat until their mouths are full of oil!

Mr. Zhang nodded: "If you don't have a few technicians from Lao Kaishan, maybe your research and development will be smoother."

"How many?" Maozi smiled, how many are enough, dozens, hundreds, or even thousands!

Yes, it is still necessary to say it now, there is no meaning of boasting, just wait until it is done before.

After chatting with Mr. Zhang for a long time, the sky inside turned white, and there were no crackling firecrackers nearby. When he heard the sound of those firecrackers, Lu Jie suddenly remembered something and clapped My own head: "Really, you forgot your purpose of coming to Huating!"

"Is he here to attend the groundbreaking ceremony of the CNC milling machine?" Mr. Zhang looked at Maozi curiously.

"Of course it is!" Mao Zi replied simply: "You are here to find a wife."

After finishing speaking, Lu Jie ran out, jumped out of her car, and drove out amidst the roar of the engine.

Huating Aerospace Technology Research Institute is still brightly lit.

Maozi ran all the way, and when he opened the door, there were people outside!

"In order to complete the project development as quickly as possible, you have completely imitated Lu Jielan's electronic system." At this time, behind a small table, a group of people were still working on project coordination, and it was Qin Tao who spoke.

The current Qin Tao, with short ear-length hair and a white coat, does not look like a scientific researcher. Looking at his wife, Mao Zi is very proud.You have lost the innocence of just graduating from elementary school, and you have become a real scientific researcher.

"However, you still retain the idea of ​​modification. Of course, you can wait until the past. For example, the traditional semi-active radar continuous wave irradiation system used by Shiji. Each fire control radar can only illuminate one target and guide one For missile retreat and interception, you only need to modify the system a little, and you can change it to a semi-active homing intermittent irradiation system, which can illuminate two or even fewer targets at once, which can slightly improve the anti-saturation strike capability of the entire air defense system , and it can be replaced with an active radar seeker in the future."

Qin Tao didn't give up on the modification, but he said that you know that the problem of nothing is to be solved first, so you just put those proposals in the past and then implement them. In the future, it is necessary to modify.

"Yes, those are all previous upgrade projects." Mr. Zhang (chief designer of Hongqi 16 missile) nodded: "I said later that your surveying and mapping imitation retreat is still wrong. It seems that by next year, you will Samples can be produced, and target shooting tests have been carried out. Don't they have any ideas?"

"Mr. Zhang, the range of the missile is still too short. If you can add a booster to the missile before, you can make it have a smaller range, which will be even better!" No one spoke again.

The range of the Shikili missile is only 77 kilometers. Although it is a wrong step back compared with the Sea Sidewinder and the domestic Hongqi 61, there is still no room for improvement. Of course, the lower the range, the better!
"Increase the shooting range? If it can be increased to [-] to [-] kilometers, the brother units should say that you have robbed us of our jobs!"

Everyone laughed.

Qin Tao also smiled, and at the same time turned his head casually, and then saw Maozi in front of him, and was immediately taken aback: "Why is he here?"

"Can you come?" Lu Jie asked back, and then looked at Mr. Zhang: "Mr. Zhang, as a family member, I want to ask you for advice. When is the annual leave of your unit? Chinese New Year is coming, do you plan to let your family members stay alone in the vacant room?"

Qin Tao rolled Mao Zi's eyes, what did he say?Was he holding you back?The next time you ask for leave to accompany Vitalia, you have already missed a lot of work. Now, he is here again?
"Chinese New Year?" Mr. Zhang glanced at the calendar beside the table: "Is it still early?"

What about early?Lu Jie glanced at Sure enough, and couldn't help laughing: "You remembered a joke."

"A joke?"

"Who can keep the time?"

"Of course it can. Time goes backwards forever."

"According to Einstein's theory of relativity, if it can approach the speed of light, then time will stagnate. So far, human technology has not yet reached."

"Yes, yes, yes." Mao Zi shook his head: "Those people have already saved the time, and they are so low, as long as they tear off the calendar card, the time will stay up!"

Is it to tear off the calendar card?
Lu Jie resisted and walked over, and tore up a sheet in a snap.

"Everyone, they really saved the time, and they still stayed one day later! Today is already the 74th of the twelfth lunar month, and tomorrow is the [-]th of the twelfth lunar month, and the day before yesterday is the first day of the Lunar New Year."

what?
Everyone is busy outside the research institute, there are days and nights, no matter who remembers the time, it is useless for you to tear up an extra sheet, because we basically spend Sundays, so we will wait for the break to check the numbers.

As a result, over time, the time difference was only a week, and the Chinese New Year was coming soon!
"In that case, you guys will have a holiday tomorrow!" said Mr. Zhang.

"Yes, you have very little work and haven't finished it yet!"

"It's wrong, anyway, I bought the ticket to go home, so I can continue working there."

"Everyone, it's the best way to combine work and rest. If they keep spinning like that, their bodies will collapse and their work efficiency will also decrease." Maozi's fellow fooled us: "So, they must take a break , even if you can go home, the eight days of annual leave, rest outside the dormitory, or go for a walk outside the city, if you have enough energy, you can devote yourself to work with a more dry and cold heart!"

"There is a mistake. Mr. Qin is right. Tonight, Xiaojia will arrange all the work at hand and make a complicated ending. Get off work before the annual leave, and then continue." Zhang Lao said.

After finishing speaking, I looked at Mao Zi: "Mr. Qin, as a family member, are you satisfied?"

Lu Jie nodded, that's still not enough, if Xiao's family is leaving, Daling is too embarrassed to leave!
It is indeed time for us to take a break, as it has been tense, and sooner or later it will break.

"Boss Qin, I'll give you the total. Before your missile is successfully developed, what kind of warship is it most suitable for?" Mr. Zhang continued.

At the beginning, before we got the whole set of Shijili system, we had to do imitation, but now, the imitation has made little progress, and we will be able to make sample bombs in the next year, so, next, we have to consider disembarking problem.

What kind of warship is the most suitable?
"Frigate." Maozi said, "It's useless to use that kind of missile under a destroyer."

It is a waste of missiles, but a waste of the hull. After all, the hull of a destroyer is smaller and should accommodate the area air defense system. The medium-range air defense missile should be installed under the frigate. As a high-cost warship, a small amount Production.

"There is a mistake, it should be installed under the frigate, so that it can make up for the air defense capability that your navy needs lately." Zhang Lao said: "The 053 frigate you don't have now is also a modified Hongqi 61. You can directly launch your Hongqi 16."

Maozi shook his head: "Yes, the 053's hull is too big. It is suitable to modify the anti-aircraft missile. The hull has to be enlarged to about [-] tons, so the difference will be less."

What?Seven thousand tons or so?
Mao Zi's words stunned everyone present. Was he serious?

A frigate of seven thousand tons?

Our Type 051 destroyer has a displacement of only 052 tons, and the Type [-] destroyer has a displacement of [-] tons. Now he says he wants to build a [-]-ton frigate?So it should be the main destroyer, okay!
Although the little guy is engaged in aerospace missiles, after all, it is for warships, so he still has a vague understanding of the basic data.

Xiao everyone thinks that there are no frigates with less than [-] tons.

Knowing that the little guy has a long-term vision, Maozi smiled, and then said: "Why, what did you say wrong?"

"President Qin, with a displacement of [-] tons, it seems that it should be attributed to a destroyer, right?"

"Really? He said that there is no difference between a destroyer and a frigate?"

the difference?

Everyone was lost in thought.

"Boss Qin, I would like to hear more about it." Mr. Zhang said.

"Destroyers are used to drive out the enemy's warships. They are one of the main battleships of the fleet. Frigates are used to protect our own fleet. They can also be used as human shields at critical times." Maozi said: "Although the tonnage of destroyers is small in particular, The tonnage of the frigate is large. But they can see that, with the development trend of the world, warships have become smaller and smaller."

"Your 052 destroyer has a displacement of only about 051 tons, but now the [-]C you produce has a displacement of [-] tons. Your frigate will also have a smaller displacement." Maozi said: "That's a trend. After all, it's only convenient for you to install enough vertical launch systems if the displacement is reduced to seven thousand tons."

Elder Zhang nodded.

The supporting vertical launch system is also under development, and the retreat is smooth. However, if those vertical launch systems are to be pushed out of the warship, it is absolutely necessary whether there is enough space.

Those people have really seen the world. Our 055 destroyer has a displacement of [-] tons, but we just call it a cruiser, so as to save others from hearing the surprise, the name of the destroyer is much better.

"Our country is poor, and the navy has the ability to undertake the construction and maintenance of a small number of destroyers. Therefore, you will have fewer and fewer frigates outside of this period of time. All of them will be equipped with our Hongqi 16 missiles." Mao Zi Said: "At the same time, our army and air force have no air defense requirements, so that kind of missile is only used in the navy, and there is no vehicle-mounted solution."

It’s too little to say, anyway, it’s useful to talk to the people in front of you. Before the construction of the two 051C ships is completed, the Hongqi 16 will be mature. At that time, my shipyard will be able to start building the 054 frigate.

That amount will be smaller.

Before the 054 is built, the four red flags are mature, the phased array radar is mature, and the Navy's 052C Aegis ship will have nowhere to go.

Now, let's talk about those plans.

After all, it is engaged in anti-aircraft missiles, so Lu Jie has nothing to do, so he simply talked about the development plan of the Hongqi 16 missile.If the navy wants to use it, so does the army. After all, the army's head is also bare.

"Army and Air Force?" Hearing Maozi's words, Mr. Zhang frowned, and then said, "Mr. Qin, you may know that there is no type of medium-range missile under development in your country, just because it Have you considered the needs of the sea, so it has always been used as a land, without the existence of such missiles, your Hongqi 16, it is estimated that it will be difficult..."

Mao Zi smiled, those people's awareness of secrecy is really weak, and they will tell the people about specific projects at all, including the Red Flag [-], and the so-called medium-range missile that is currently under development.

Yes, Mao Zi knew that the project that Mr. Zhang said was actually Lu Jie-1.
In the past few decades, the air defense of important places in China has almost relied on the Hongqi-2 air defense missile, which is the imitation of the old Kaishan S-75 missile. Getting outdated.

Therefore, the relevant units have retreated a series of changes.

For example, the original missile used a liquid rocket motor, and after use, you had to wear a gas mask to fill it with highly toxic fuel. With the development of technology, solid rocket motors are becoming more and more mature. Therefore, Lu Jie-1 The original liquid rocket motor was replaced with a solid rocket motor, and the reliability and operability were greatly improved.

For another example, with the improvement of technology, there is no advanced phased array radar technology, so the relevant units have also upgraded the radar.

After a series of improvements, the performance of Zhao Ling-1 air defense missile has been greatly improved.At the same time, it also inherited few technologies of the later Hongqi-2 missiles, such as wired and electric command guidance, etc., which made the cost of that missile very high.

According to the idea of ​​the design unit, that kind of missile can rely on cost advantages to open up the international market and replace the outdated S-75 missiles in few countries, but in fact, since the development of that missile, it has been mediocre. Are there any foreign customers purchasing.

The missiles developed with a small amount of money can be discarded just like that. Therefore, the relevant units have continuously improved and retreated technology, and finally obtained the approval of the Air Force, purchased a batch, and got a number of Hongqi-12.

From the perspective of technical indicators, that missile is similar to the Hongqi-16, but in terms of actual performance, the difference is too little.

It is only a slight problem that it inherits the wired electric command guidance technology of the Hongqi-2 missile and suffers too little interference in actual combat.

Although it is a missile that is planned to be sold in China, it is still kept in secret. It will not be announced for the first time until the Zhuhai Air Show in 98.

Mao Zi meant the specific model, I said with a smile: "You know what type of missile they are talking about, but you can know that the performance of the Shijili missile is very wrong. When that missile is imitated, it will definitely To become the first medium-range anti-aircraft missile in your country is only needed by the navy, and the army certainly has no need. Therefore, you suggest that they simultaneously develop the models needed by the army.”

Mr. Zhang thought about it seriously, and then nodded: "There is a mistake. If you compare technology, the performance of your Hongqi 16 is very low. You are right, you have to develop a special model for land, Mr. Qin, you have no What advice?"

"Well, the model used on land can be placed under an off-road truck, or in the form of a launcher. Yes, because that kind of missile is small enough, a vehicle can carry up to eight launchers."

Of course, Hongqi 16 needs a non-land version.

The navy’s cold launch system still has to wait for a long time. The only thing that can be used now is hot launch. Therefore, the Hongqi 16 also uses a circular launcher, with two rows of eight launchers poked in the ground. Call it a spectacle.

"Before the navy model is made, you should study that related model!" Mr. Zhang made up his mind: "Anyway, competition is popular now, so you should compete with your brother units."

"Mr. Zhang, you are right. Only competition can produce the best products." Lu Jie expressed support for Mr. Zhang. I also doubt that Hongqi 16 will soon become the best among domestic medium-range air defense weapons. There will be no place in the world.

The night is already deep.

Qin Tao finished all the work, walked out of the building with Mao Zi, and then got out of Mao Zi's car.

"The stars are very dim tonight." Qin Tao raised his head and glanced at the sky: "In that year, it was just like that without you."

"There's a mistake, there's nothing left for you." Mao Zi said, "Da Ling, he can conclude that there was nothing to gain in that year."

"Harvest?" Qin Tao had a satisfied smile on his face. In that year, you did gain very little. You had no career and no relationship. At this moment, sitting in the car, Qin Tao felt very satisfied. .

"Brother Tao, does he have any regrets?" Qin Tao asked suddenly.

"Nothing."

"He has no regrets?"

"Yeah, your wife, whether or not your stomach is still growing means you've worked hard enough." After Maozi finished speaking, he glanced at Qin Tao, and Lu Jie's face immediately turned red. Of course you know what Maozi meant.

"Tonight..."

On the seventh day, Lu Jie's car drove back to Mingzhou.

The outside of the shipyard is still busy, and there is no sign of New Year's Eve.

"Brother Tao, he was protesting outside your institute, but it turned out that he was also on vacation there." Qin Tao glanced all over Maozi.

"You pay your workers eight times their wages, what about them?" Maozi said naturally.

"You work only for wages."

"Understood, there is no ideal, no belief." Maozi said: "You are very vulgar. If you want your people to work, you will pay us enough wages and bonuses. You will raise What is the ideal, it is as direct as giving money.”

"You still have a meeting. Should he stay there, or go home and prepare the New Year's Eve dinner with our mother?"

"Go back and do your duty as a daughter-in-law." Qin Tao said, "It's been a long time since I saw Shiyu, let's have a good chat with you."

Lu Jie went to the family area, and Maozi had to go around the shipyard to see the progress, especially the construction of the shipyard.In the morning, I have to call other people from my branch factory to make a year-end summary.

　PS: I didn’t sleep well all night because of the data loss. I started coding at four o’clock. I will add a new chapter for everyone. I will add updates from time to time in the future. Please subscribe, please subscribe, please subscribe!

　　
　
(End of this chapter)