“If we don’t have four small shields, what should we use?”

Qin Tao smiled: "We use back-to-back, two-sided phased array radars to search for targets by rotating. As an upgrade from our previous 382 radar, it is the same as the British Type 45 destroyer."

The British have developed an advanced Type 45 destroyer and show it off everywhere, saying how excellent its performance is with a ball on their head. In fact, it is not because they are poor that they cannot afford a four-sided phased array.

Dongfang’s destroyers are already all equipped with four-sided phased array radars. Dongfang’s frigates must pursue cost-effectiveness and not be too powerful, so we will not install four-sided phased arrays. We will install two-sided phased arrays to rotate and search for targets.

Anyway, the 054 frigate used to install back-to-back radars on the main mast, but they were just imitations of Lao Maozi's top-plate radar. By increasing the power, the search range was expanded to 250 kilometers, which is enough for a frigate. Moreover, because This radar is in the highest position, so it is easier to detect low-altitude sea-skimming anti-ship missiles. The frigates will do the work of the frigates, and the long-range air defense will be provided to the destroyers, and we will do the short-range ones.

Of course, considering the advanced technology of the East, even if we build back-to-back radars and adopt a phased array system, a search distance of three to four hundred kilometers can still be easily achieved.

“Mr. Qin, there’s not much difference between four small shields and two large shields, right?” someone said.

Qin Tao shook his head: "No, it's much worse!"

The four-sided shield searches in four directions, so that the beams are dispersed. Although the target can be found immediately, the detection distance will not be too far because the power is not high enough. Internationally, warships equipped with four-sided shields, The search distance is almost two hundred kilometers.

As for the two large shields back to back, although the target refreshing ability may be insufficient, the search distance is definitely far enough, especially to deal with ultra-low-altitude sea-skimming anti-ship missiles, and there are enough beams to illuminate the target, so as to attack the opponent. Find it just after it sweeps out from the horizon.

 The combat effect of two large shields is better than that of four small shields, which has been proven by later generations.

 How to prove it?

Of course, it is the 054B of later generations, which directly uses this layout. Since it is used like this, there must be a reason!

After listening to Qin Tao's introduction, everyone nodded: "Yes, what Mr. Qin said makes sense. We still use two large shields back to back. The phased array radar has the ability to refresh the target. If necessary, we can even Can be fixed in a certain direction.”

Theoretically speaking, one side of the phased array radar can scan the 180-degree airspace facing it. With two side of the radar back to back, it can already achieve a full range of searches. Of course, it is actually limited by the distortion of the beam. Wait, the search efficiency for the edge parts is not high, leaving a certain blind area.

Generally, four-sided phased array radars are deployed to be responsible for the 90-degree airspace in front of them to facilitate better searches. At the same time, a part of them will be divided to take care of the adjacent areas. When the target flies from one side to the other, it will not Being followed.

If you don’t have the money to build a four-sided phased array, there is no shame in using two back-to-back phased arrays. The British proudly claim that their Type 45 destroyers are awesome every day.

“These two back-to-back phased array radars probably consume a lot of power.” A leader asked: “Does the power system of our frigate also need to be upgraded?”

The current 054 uses four diesel engines, focusing on economy, but when the displacement increases to 6,000 tons, the power of the diesel engines may not be able to keep up. In addition, such a set of back-to-back phased array radars consumes a lot of power. , how to coordinate?

"Yes, if we still use four diesel engines as before, the power will be greatly reduced. Fortunately, our all-electric propulsion system is mature and can be used for modification. The combination of one gas turbine and two diesel engines should be more than enough. .”

The 052B with the same displacement uses alternating diesel fuel. Many domestic destroyers use alternating diesel fuel. This is also helpless. It uses a diesel engine at low speed and a gas turbine at high speed. The two cannot be used at the same time. After all, one speed can easily reach thousands or even more. Tens of thousands of revolutions, one or two thousand revolutions at a time, they can't even come together.

But with the integrated power system of the whole ship, it is different. No matter how high or low your speed is, it is still generating electricity, and the generated power can be easily gathered together and used.

In later generations, the power usage of 054B has always been a mystery. Many people support the theory of four diesel engines. This statement has a basic theory: If a gas turbine is replaced, will it still be 054? Then it should be given a number like 057!

Since the 99 tank can be modified to something like the 99A2, why can’t the 054 be modified? Why do you have to change the number? Is the later 052D the same as the early 052?

  If the 6,000-ton 054B also uses four diesel engines, which diesel engine should be used?

The original 16PA6V-280STC diesel engine of French technology is definitely not good. The power of a single engine is only 6400 kilowatts, and the total power of the four engines is about 35,000 horsepower. When driving 054A, it has just reached a speed of about 25 knots. Can it reach 20 knots when driving 054B? ?

  In addition to this kind of diesel engine, what else do surface ships have? The 075 uses a 16PC2-6B medium-speed diesel engine. This power is not small. If four units are used, it can reach 64,000 horsepower. The power is enough, but this is a medium-speed diesel engine. One unit is 10 meters long. , 3.6 meters wide, 4.8 meters high, with a dry weight of 114 tons. It doesn’t matter if such a big thing is used on 075, but if it is used on 054B, is there any space?

 So, as long as you look at your family background, you will know that a gas turbine is the most suitable option.

  There is no need for a 40-megawatt gas turbine. Just continue to use the main GT25000 gas turbine. The power of one unit reaches 26.7 MW, which is 36,000 horsepower. One unit is equivalent to four 16PA6V-280STC!

Normally, only two diesel engines are used. These two diesel engines can continue to use the original 16PA6V-280STC. Two 12.8 MW engines are enough to drive the 054 to cruise at a speed of more than ten knots. At the same time, there is sufficient power supply to turn on the radar. , if you need to cooperate with the aircraft carrier formation and need to operate at full speed, then turn on the gas turbine. The power of the diesel engine plus the gas turbine is 39.5 megawatts, a power of nearly 40 megawatts, which is enough for the 054 to follow the formation without falling behind.

 So, this power configuration is the best, and it is not bad for the navy anyway. The price of purchasing two diesel engines and purchasing a gas turbine is not much different. I gritted my teeth and went up. Although I said I wanted to pursue cost-effectiveness, I also wanted to be a little luxurious occasionally.

 With this comparison, there is nothing much to say.

"Yes, from this point of view, the combination of two diesel engines and one gas turbine is the best. Compared with other six-thousand-ton warships, we can save one gas turbine, which is already very good. All-electric propulsion is This is good." A leader said. If there is no all-electric propulsion, then one gas turbine is not powerful enough, and two must be needed. Only the Germans have successfully operated gas turbines and diesel engines in parallel, and nothing else has worked.

"Yes, this requires power and power, and electricity and electricity. By the way, apart from the back-to-back radars on the front, what else is outstanding about our warship? Do we also need to replace the missile launcher?"

Qin Tao shook his head: "No need."

When the 054B was upgraded to a displacement of 6,000 tons, many military fans expressed dissatisfaction with the fact that there were still only 32 vertical hair systems in the front. With such a large displacement, should we install more vertical hairs? Should we install a universal vertical hair system? ?

"Our warship is still positioned as a frigate. It will undertake **** work in the fleet and will not be the main force." Qin Tao introduced: "Our existing 32-unit vertical launch system is enough, and our related technologies The personnel are also working hard. The range of the Hongqi-16 has reached 70 kilometers. In the future, the range will continue to increase to more than 100 kilometers. This kind of anti-aircraft missile is enough for us. Our expanded displacement is mainly used to improve ocean warfare. comfort level.”

 What is the expanded drainage used for? Put more equipment? Some countries are so happy that they don’t know what to do when they have a few warships on hand. They load everything on them, and it seems that they are not satisfied until the warships are full.

In fact, warships are not only for fighting, but also for living. They also need a lot of living facilities. The farther they sail across the ocean, the more space they need for people to live. Only in this way can soldiers maintain good physical fitness and thus maintain good health. combat effectiveness.

For example, if there is extra space, set up a reading room and design a computer room. If the warship communication system has sufficient capacity, it can also allow soldiers to video chat with their families to alleviate the loneliness of ocean voyages. The previous 054 frigate was limited by its displacement, and there were not many living facilities, almost all of which were given to combat equipment. Now that the displacement has been increased, it is completely possible to put more effort into the comfort of life. Apart from anything else, the upper, middle and lower three Changing a sleeper berth to a bunk bed will also make the sailors much more comfortable.

  In previous eras, dedication was valued. As the times change, the only sons born in the 1980s and 1990s will definitely want a more comfortable environment when they board warships. This is the inevitable development of the times.

“At the same time, the hangar at the back also needs to be expanded. In the past, we were equipped with Z-9s, but now we need to consider installing Z-20s.”

Even the 052D has been lengthened to the 052DL. In order to accommodate the Z-Twenty onboard, the hangar must be lengthened. Warships of the 054 level mainly carry light helicopters such as the Z-9. Later, they will be replaced by the Z-Twenty. , the required hangar and deck must be expanded, which is also the reason why the displacement needs to be increased.

 Everyone nodded.

“Yes, the Z-Twenty will be our main carrier-based aircraft in the future, and future warships will also be designed to carry this type of helicopter.” Wu Shengli nodded.

"The expansion of displacement is mainly used to solve these problems. Of course, some weapons also need to be upgraded." Qin Tao continued according to the 054B plan of later generations: "For example, we already have Haihongqi Ten, and this kind of weapon must also be equipped Go up and organize the last line of defense."

The Hongqi 10 has matured. On warships, the 1130 close-in defense gun is usually placed in the front and the Haihongqi 10 is placed in the back. This should also be done on the modification of the 054 frigate. The combination of the 1130 and the Haihongqi 10 can better Organize for short-range defense.

"We also need to upgrade our anti-ship missiles. We used to use two four-unit YJ-83 anti-ship missiles. Now, we need to replace them with two four-unit YJ-12 anti-ship missiles. This can improve our long-range attack capabilities. By the way, the 366 radar is no longer useful, and we have more advanced means."

366 radar is a localized name. It is the same code name as 382 radar. In fact, it is a replica of Lao Maozi's MINERAL-ME radar. This kind of radar also has a more well-known name, which is the music station radar. .

Ordinary shipborne radars are limited by the curvature of the earth and cannot search for sea targets 70 kilometers away. However, through many years of research, Lao Maozi discovered the special refraction phenomenon of the atmosphere and used this method to detect objects below the sea level. The target's ability to attack beyond visual range.

As the modern class entered the East, this kind of radar also entered the sight of relevant departments. The 723 Institute successfully copied this kind of radar and developed it more perfectly.

It covers the commonly used wavebands of various radars. Different wavebands can be selected according to different environments. It also has three modes: active, passive and collaborative. The detection range of active mode reaches more than 200 kilometers, and the detection range of passive mode reaches 400 kilometers. Kilometers, coordination refers to the networking of multiple radars, just like the meter-wave radar networking, which not only has a long range, but also has high accuracy, which can fully meet the launch needs of ship-based anti-ship missiles.

  However, this technology still has big problems, especially due to environmental constraints. If God does not provide support, it may only be used as an ordinary within-line-of-sight radar.

In the past, the navy had no other detection methods, so it regarded this kind of radar as a magic weapon. Now, the navy has developed. It has advanced early warning aircraft, maritime search aircraft, and many satellites in space. There is no need for this special kind of radar. radar.

The 366 radar once supported the long-range attack capabilities of the Eastern Navy, but now it is slowly becoming outdated and should be replaced by more advanced detection methods.

 “If we don’t use 366 radar? Then what should we use?”

"The U.S. Navy doesn't have this kind of over-the-horizon radar, right? Are they worried that they can't find the target?" Qin Tao said: "Our combat method is getting closer to the U.S. military. We use whatever they use. Moreover, this kind of The radar technology has been obtained by the Americans, and to them, this technology is no longer a secret."

The US military does not have over-the-horizon radar, but they have various search methods, so they do not worry about not finding the target at all. Moreover, the Americans bought the same type of radar from the international arms market. This is more deadly and can be used on the battlefield. Things that the other party is familiar with may bring other consequences. For example, instead of discovering the enemy, they are located by the enemy.

 Everyone, think about it.

"Let's think about this again." Wu Shengli said: "One more method will provide more protection on the battlefield. We can't be too aggressive."

"Okay, then let's reserve a location for this kind of radar. If the Navy wants to be safe, it can also install it. Since we are talking about radar, let's continue talking about radar. Above the bridge in front are back-to-back S-band phased array radars. , on the rear mast, we also need to integrate various antennas and an X-band radar, which can be said to be a simplified version of our 055 mast. Don’t look at me strangely, guys, these shouldn’t cost much.”

The 055 has already used a comprehensive mast to bring together various radio frequency signals. On the 003 aircraft carrier, eighteen shields are used, which is even more advanced. Now, if these technologies are to be transplanted to the 054, of course it will make this This kind of warship is taller and taller, but in fact it does not cost much. After all, many battle arrays are not large in area, and the technology is directly transplanted without special research and development.

“These need to be investigated to determine the cost.” Wu Shengli said.

You can't let Qin Tao fool you casually. You have to do detailed research to know.

“Okay, let’s move on to weapons.” Qin Tao said, “What do you think of the 76mm cannon used before?”

054 is a 4,000-ton warship. When designing, it used a 76mm naval gun. This caliber of naval gun is not powerful enough, but has a good rate of fire. The consideration at the time was not only anti-ship, but also anti-aircraft. .

That’s right, even though it’s a main gun, it can still defend against air attacks. It’s even a powerful air defense weapon. Just one of it can kill an enemy plane. After its appearance at that time, it effectively filled the gap in anti-aircraft firepower, but looking back now, it is already useless.

The range of the Hongqi-16 has been further increased, and the equipment of the 1130 and Haihongqi 10 has greatly improved the air defense capabilities of the warship. The main gun is no longer needed for air defense. At this time, the main gun is only used for sea defense. When shooting, the problem of insufficient power is revealed.

“The 76mm naval gun is not powerful enough, but the 130mm single-barreled naval gun is too big. How about we add a 100mm naval gun?”

At the beginning, the main force of domestic warships was 100mm naval guns, but after some comparisons, they felt that it was useless. When it comes to anti-ship, it cannot compare with 130mm naval guns. When it comes to air defense, it cannot compare with 76mm naval guns. In the world, except for the Eastern , only the French use this caliber.

 So, after some deliberation, the Eastern Navy decided to choose 76 and 130 calibers as the main calibers of naval guns. However, with the development now, it can be found that 100 mm naval guns seem to have become popular again.

"At the beginning, we copied the French single-barreled 100mm naval gun, but unfortunately it has not been used much. Let's just put this kind of naval gun on the modified version of the 054 frigate. Unfortunately, the electromagnetic gun is still not powerful, otherwise we can directly use the electromagnetic gun. Shot!"

In the 1970s and 1980s, the door to the East opened up and we saw the advanced technology of the West. For various reasons, the most weapons were introduced from France, including the single-barreled 100mm naval gun, which was used on the 053H1 frigate. I thought it was good, and then officially Decided to imitate.

However, the technology of French products is advanced, and Dongfang's level was limited in the 1980s. It took a long time to imitate it. Then, the Mingzhou Group came out and was not interested in this kind of naval gun.

 Now it has been remodeled and can be used again!

 (End of this chapter)