Chapter 238 The 4,000-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 at the bow of the boat for monitoring, because the bow of the boat is the farthest from the power cabin and has the best silence. If you want to monitor others, you must ensure that you are not 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 of the boat is still the most widely used. 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 1960s. The sonar system has reached a new level every 10 years. , smaller noise, and the follow-up processing system is also very advanced.

  But the old man can't do it.

  Until the collapse of the Red Empire, the Type 971, the pinnacle of Lao Maozi's attack nuclear submarines, was still using the comprehensive bow cylindrical array sonar, and the Ajax giant spherical array sonar was not installed until the Type 885.

Compared with the cylindrical sonar, the ball array sonar is expensive and requires high processing technology, and because the huge volume occupies the entire space of the bow, it even causes the torpedo tube to move backward, which brings a lot of problems to the layout of the entire hull system. Difficult; however, ball array sonar engineering is simple to implement (that is, the beam control is the simplest), the acoustic aperture is large, and the underwater acoustic performance is more dominant; in contrast, the acoustic processing procedure of the cylindrical sonar array is complex and the accuracy is poor, and often needs to be amplified Volume and power, for example, the MGK-501 system of the Type 971 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 six meters.

  Looking at the United States, let alone the Seawolf class, the Los Angeles-class nuclear submarine already has a spherical sonar.

   Now, the country wants to survey and map the cylindrical sonar on the Type 705 nuclear submarine, but it encounters a problem. Qin Tao actually said that he wants to develop a more advanced spherical sonar?

  Mr. Zhang looked at Qin Tao worriedly.

"It's still not enough to rely on our technology, but the Red Empire has collapsed. In the future, there will be many old-fashioned technicians who will not be able to eat. We can invite them over. In this way, our technical strength will be stronger, and it will be easier to achieve breakthroughs." Already." Qin Tao said to Mr. Zhang: "It shouldn't be difficult to make a breakthrough in sonar technology."

  The collapse of the Red Empire is good for the country. The big guys will go to carve up the inheritance of the Red Empire, and their own side has to go up and eat until their mouths are full of oil!

  Old Zhang nodded: "If there are a few technicians from Lao Maozi, maybe our development will go more smoothly."

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

  However, there is no need to say it now, it is a bit boastful, and it will be fine to do it later.

After chatting with Mr. Zhang for a long time, the sky outside became dark, and the sound of crackling firecrackers could be heard in the distance. When he heard the sound of these firecrackers, Qin Tao suddenly remembered something and patted himself on the head : "Really, I forgot my purpose of coming to Huating!"

   "Didn't you come to attend the groundbreaking ceremony of the CNC milling machine?" Mr. Zhang looked at Qin Tao curiously.

   "Of course not!" Qin Tao replied simply: "I'm here to find a wife."

   After finishing speaking, Qin Tao ran out, jumped into his car, and drove out amidst the roar of the engine.

  Huating Aerospace Technology Research Institute is still brightly lit.

  Qin Tao trotted all the way, and when he opened the door, it was actually full of people!

   "In order to complete the project research and development as soon as possible, we have completely imitated Shi Jili's electronic system." At this time, in front of a large table, a group of people were still coordinating the project, and it was Zhao Ling who spoke.

  Now Zhao Ling has short hair around her ears and a white coat. She looks like a scientific researcher. Looking at her wife, Qin Tao is very proud. She has lost the innocence of just graduating from university, and she has become a real scientific researcher.

"However, I still reserve the idea of ​​modification. Of course, it can wait until later. For example, Shiji uses the traditional semi-active radar continuous wave irradiation system. Each fire control radar can only illuminate one target and guide one For missile interception, we only need to slightly modify the system to change to a semi-active homing intermittent irradiation system, which can illuminate two or even more targets at one time, which can greatly 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."

  Zhao Ling didn't give up on the revision, but she knew that the problem of whether or not it should be solved first, so she just put these proposals into practice later. For now, there is no need to revise.

"Yes, these are follow-up upgrade projects." Mr. Zhang (Chief Designer of the Hongqi 16 missile) nodded: "For now, our surveying and mapping imitation is making good progress. It seems that by next year, we will be able to produce it. Sample, target test firing. Do you have any other thoughts?"

   "Mr. Zhang, the range of the missile is still too short. If we can add a booster to the missile in the future, so that it can have a longer range, that would be even better!" Someone spoke again.

  The range of the Shikili missile is only 25 kilometers. Although it is a good improvement compared with the Sea Sidewinder and the domestic Hongqi 61, there is still room for improvement. Of course, the higher the range, the better!

   "Increase the shooting range? If it can be increased to seventy or eighty kilometers, the brother units should say that we have robbed them of their jobs!"

  Everyone laughed.

  Zhao Ling also smiled, and at the same time turned her head inadvertently, and then saw Qin Tao, she was taken aback immediately: "Why are you here?"

"Can't I come?" Qin Tao asked back, and then looked at Mr. Zhang: "Mr. Zhang, as a family member, I want to ask you for advice. When will the annual leave of your unit be released? It's about to It's Chinese New Year, do you plan to let our family members stay alone in the vacant room?"

  Zhao Ling gave Qin Tao a blank look, what did you say? Are you holding me back? The last time I asked for leave to accompany Vitalia, I already missed a lot of work. Now, are you here again?

   "Chinese New Year?" Mr. Zhang glanced at the calendar beside the table: "Is it still early?"

  How about early? Qin Tao glanced at Guru, and couldn't help laughing: "I remembered a joke."

   "A joke?"

   "Who can keep the time?"

  "Of course not, time moves forward without stopping."

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

   "No, no, no." Qin Tao shook his head: "You people have already saved the time. You don't need to be so grand, as long as you don't tear the calendar card, time will stay!"

  Do not tear off the calendar card?

  Qin Tao couldn't help but walked over, and tore off seven sheets in a row.

   "Everyone, you really saved the time, and you still stayed in seven days ago! Today is already the twenty-ninth day of the twelfth lunar month. Tomorrow, it will be the thirtieth day of the twelfth lunar month. The day after tomorrow will be the first day of the new year."

What?

  Everyone is busy in the research institute. There is no day or night. How can they remember the time?

   As a result, over time, the time difference is only a week, and the Chinese New Year is coming soon!

   "In this case, let's have a holiday tomorrow!" Zhang Lao said.

   "No, we have a lot of work to do!"

   "That's right, I won't be able to buy a ticket to go home anyway, so I might as well continue working here."

"Everyone, it's best to combine work and rest. If you keep spinning like this, your body will collapse and your work efficiency will also decrease." Qin Tao, an outsider, began to fool them: "So, you must take a break, even if you can't Going home, these three days of annual leave, resting in the dormitory, or wandering around the city, has recharged my energy, so I can devote myself to work with more enthusiasm!"

   "That's right, Mr. Qin is right. Tonight, everyone arranges the work at hand and makes a simple ending. After the annual leave, go to work and then continue." Zhang Lao said.

   After finishing speaking, he looked at Qin Tao: "Boss Qin, as a family member, are you satisfied?"

  Qin Tao nodded, this is pretty much the same, if everyone doesn't leave, then Xiaoling is too embarrassed to leave!

   They really should take a break. They have been so tense that they will break sooner or later.

   "Mr. Qin, then give us the total. After our successful development of this missile, what kind of warship is it most suitable for?" Zhang Lao continued.

At the beginning, after they got the whole set of Shijili system, they wanted to make imitation, but now, the imitation has made great progress, and they will be able to make sample bombs in the next year. Then, next, they have to consider the problem.

  Which warship is the most suitable?

   "Frigate." Qin Tao said: "This kind of missile is used on a destroyer, which is a bit wasteful."

   It is not a waste of missiles, but a waste of the hull. After all, the destroyer has a larger hull and should accommodate the area air defense system. This kind of medium-range air defense missile should be installed on the frigate, as a low-cost warship, mass-produced.

   "That's right, it should be installed on frigates, which can make up for the air defense capability that our navy urgently needs." Mr. Zhang said: "Our existing 053 frigates don't need to be refitted with Hongqi 61, we can directly mount our Hongqi 16."

  Qin Tao shook his head: "No, the hull of 053 is too small. It is not suitable to modify this kind of anti-aircraft missile. The hull has to be enlarged to about 4,000 tons, so it is almost the same."

What? About four thousand tons?

  Qin Tao's words stunned everyone present. Are you serious?

   A frigate of more than 4,000 tons?

  Our Type 051 destroyer has a displacement of just over 3,000 tons, and the Type 052 destroyer has a displacement of more than 4,000 tons. Now you say you want to build a 4,000-ton frigate? This should be the main destroyer, okay?

  Although the big guys are engaged in aerospace missiles, they are for warships after all, so they still know these basic data clearly.

  You don't think there are frigates with more than 4,000 tons.

  Knowing that the big guy's vision is not long-term enough, Qin Tao smiled, and then said: "Why, did I say something wrong?"

   "President Qin, with a displacement of more than 4,000 tons, it seems that it should be attributed to a destroyer, right?"

   "Really? Then tell me, what's the 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." Qin Tao said: "Although generally speaking, destroyers have a large tonnage. , The tonnage of the frigate is small. But you can see, the current development trend of the world, warships have become larger and larger."

"Our 052 destroyer has a displacement of only about 4,000 tons, but now the 051C we produce has a displacement of 6,000 to 7,000 tons. Our frigates will also have a larger displacement." Qin Tao said: " This is a trend, after all, only when the displacement is enlarged to 4,000 tons can we install enough vertical launch systems."

  Old Zhang nodded.

  The supporting vertical launch system is also under development, and it is progressing smoothly. However, if these vertical launch systems are to be stuffed into a warship, it is absolutely impossible without enough space.

  These people really haven’t seen the world. Our 055 destroyer has a displacement of tens of thousands of tons, but we don’t call it a cruiser, so as to save others from hearing it. The name of the destroyer is much better.

"Our country is poor, and the navy is unable to undertake the construction and maintenance of a large number of destroyers. Therefore, in the future, we will have more and more frigates. All of them will be equipped with our Hongqi 16 missiles." Qin Tao said: "At the same time, our army and air force also have air defense needs, so this kind of missile must not only be used in the navy, but also have a vehicle-mounted solution."

  Qin Tao didn’t say much, anyway, it’s useless to talk to these people in front of him. After the construction of the two 051C ships is completed, Hongqi 16 will be mature. By then, his shipyard will be able to start building the 054 frigate.

   This amount will be larger.

   After the 054 is built, the red flag is almost mature, the phased array radar is mature, and the navy's 052C Aegis ship will also be available.

   Now, there is no need to speak out about these plans.

   After all, this place is engaged in anti-aircraft missiles, so Qin Tao 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 Qin Tao's words, Mr. Zhang frowned, and then said, "Mr. Qin, you may not know that there is another type of medium-range missile under development in our country, just because it It didn't take into account the needs of the sea, so it has always been used as a land, with the existence of that kind of missile, our Red Flag 16, it is estimated that it will be very difficult..."

  Qin Tao smiled. These people have a strong sense of secrecy, and they will never tell outsiders about specific projects, including the Red Flag IX, and the so-called medium-range missile that is currently under development.

  However, Qin Tao knows that the project Mr. Zhang talked about is actually Kaishan-1.

In the past few decades, the air defense of important places in China has almost relied on the Hongqi-2 air defense missile. This missile is an imitation of Lao Maozi's S-75 missile. Outdated.

   Therefore, the relevant units have made a series of improvements.

For example, the original missile used a liquid rocket engine, and before use, it had to wear a gas mask to refuel with highly toxic fuel. With the development of technology, the solid rocket engine became more and more mature. Therefore, Kaishan-1 The original liquid rocket motor was replaced with a solid rocket motor, and the reliability and operability have been greatly improved.

   Another example, with the improvement of technology, there is already advanced phased array radar technology, so the relevant units have also upgraded the radar.

  After a series of improvements, the performance of Kaishan-1 air defense missile has been greatly improved. At the same time, it also inherits many technologies of the previous Hongqi-2 missile, such as radio command guidance, etc., which makes the cost of this missile very low.

According to the idea of ​​the design unit, this missile can rely on cost advantages to open up the international market and replace the outdated S-75 missiles in many countries, but in fact, since the development of this missile, the response has been mediocre, and there is no What foreign customers purchase.

   The missile developed by spending a lot of money cannot be abandoned just like this. Therefore, the relevant units continued to improve the technology, and finally obtained the approval of the Air Force, purchased a batch, and got a number of Hongqi-12.

  From the point of view of technical indicators, this missile is similar to the Hongqi-16, but in terms of actual performance, the difference is too great.

  It is only the radio command guidance technology that inherits the Hongqi-2 missile, and it is too much interfered in actual combat, which is a serious problem.

  Although it is a missile that is planned to be exported, it is still kept secret. It will not be announced for the first time until the Zhuhai Air Show in 1998.

Qin Tao didn't talk about the specific model, he said with a smile: "I don't know what type of missile you are talking about, but I can know that the performance of the Shijili missile is very good. When this missile is imitated, it must be It will become the most advanced medium-range air defense missile in our country, and it is not only needed by the navy, but also by the army. Therefore, I suggest that you simultaneously develop the models needed by the army.”

Mr. Zhang thought about it seriously, and then nodded: "That's right, if we compare technology, our Hongqi 16 has very high performance. You are right, we have to develop a land-specific model, Mr. Qin, what do you have?" What advice?"

   "Well, the model for land use can be placed on an off-road truck, or in the form of a launcher. However, since this missile is not large enough, a vehicle can carry at least six launchers."

   Of course, Hongqi 16 needs a land version.

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

   "After the navy model is made, we will study this related model!" Mr. Zhang made up his mind: "Anyway, competition is popular now, so let's compete with our brother units."

"Mr. Zhang, you are right. Only competition can produce the best products." Qin Tao expressed his support to Mr. Zhang. He also believed that Hongqi 16 would soon become a leader among domestic medium-range air defense weapons, even in the There will be a place in the world.

  The night is getting dark.

  Zhao Ling finished all the work, walked out of the building with Qin Tao, and got into Qin Tao's car.

   "The stars are shining brightly tonight." Zhao Ling raised her head and glanced at the sky: "This year is over like this."

   "That's right, it's over." Qin Tao said, "Xiao Ling, you can summarize what you have gained this year."

   "Harvest?" Zhao Ling had a satisfied smile on her face. This year, she has indeed gained a lot, both in career and emotionally. Sitting in the car at this moment, Zhao Ling felt very satisfied.

   "Brother Tao, do you have any regrets?" Zhao Ling asked suddenly.

"Yes, I have."

   "Do you have any regrets?"

   "Yes, my wife, my stomach hasn't gotten up yet, which means I haven't worked hard enough." After Qin Tao finished speaking, he glanced at Zhao Ling, and Zhao Ling's face immediately turned red. Of course, she knew what Qin Tao meant.

"tonight…"

   The next day, on New Year's Eve, Qin Tao's car drove back to Mingzhou.

  The shipyard is still busy, and it doesn't look like New Year's Eve at all.

   "Brother Tao, you protested at our research institute, but you didn't have a holiday here." Zhao Ling glanced at Qin Tao with some dissatisfaction.

   "I pay my workers triple wages, what about you?" Qin Tao said naturally.

   “We work, not just for wages.”

"Got it, I still have ideals and beliefs." Qin Tao said, "I'm very vulgar. If I want my people to work, then I will give them enough wages and bonuses. I won't It is better to give money directly than to raise ideals.”

   "I still have a meeting, do you stay here, or go home and prepare the New Year's Eve dinner with our mother?"

   "I'll go back and fulfill my duty as a daughter-in-law." Zhao Ling said, "It's been a long time since I saw Shiyu, let's have a good chat with her."

  Zhao Ling walked to the family area, and Qin Tao had to go around the shipyard to see the progress, especially the construction of the dock. In the afternoon, people from other branches had to be called to make a year-end summary.

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

  

  

  (end of this chapter)