Chapter 1316 I Want a Ballistic Missile Nuclear Submarine

"As for the submarine..."

Zheng Liangqun leaned his upper body against the back of the sofa and murmured as if talking to himself.

The chief of staff of the service is already a senior commander, so although he is from the Air Force, he is by no means ignorant of other services.

Especially the Navy, which has coordinated and cooperated many times.

Although Zheng Liangqun did not directly participate in the embankment building operation to deter the "Hai Lang 97" fleet, he had many in-depth exchanges with naval units, including aviation and surface ship forces, as a pilot representative with actual combat experience.

Since then, he has never given up on studying sea-air coordinated operations, and naturally became "the officer who knows the best about the navy in the air force."

After a few minutes, he spoke again:

"If you want to make a long-term ocean voyage and have to keep up with the speed of the fleet, then conventional submarines will definitely not be enough, even if they sail at snorkel depth all the time..."

"To tell you the truth, the Navy does have plans to add a newly commissioned attack nuclear submarine to the formation this time...but this is only for the purpose of ocean training, relying on surface ships to cover up the signal characteristics of the submarine before setting off. After the first island chain, both sides will perform their respective tasks.”

According to international practice, submarines should remain afloat when passing through international waterways belonging to other countries to ensure that "the peace, security and good order of the coastal state are not harmed."

But convention is convention.

In actual operations, concealment is the lifeblood of a submarine, so unless it is necessary, or if you really want to express goodwill, you will definitely find a way to circumvent this rule, or simply use submersible navigation.

In most cases, it is just to find a relatively large civilian ship, and then hide under the opponent to secretly attack Chen Cang.

However, civilian ships are non-cooperative targets after all. Their routes, speeds, drafts, and noise characteristics are all unknown. Cooperation is quite passive and prone to danger.

Therefore, it is often a safer choice to use surface ships as cover, which can never hide their whereabouts.

After some explanation, Zheng Liangqun came to the conclusion:

"To be honest, if you want to use a submarine to attract the opponent's attention so that surface ships can approach the test area, then let's not talk about the tactical feasibility. I'm afraid the Navy is unlikely to agree... After all, it is the latest model. If it is forced out of the sea, it will not look good both in terms of appearance and technology. And if you want to use an old model..."

He didn't continue, just shook his head.

China's last generation attack nuclear submarine was the Type 09I, which can only be said to have barely solved the problem. Even the last three relatively new submarines are basically not capable of performing tactical missions.

"Submarines are not designed to attract American attention, but are critical to the mission."

Chang Haonan shook his head:

"I mean using bistatic radar. You should be familiar with the basic principles. We discovered the F22 last year and the B2 in the Balkans in 1999. This technology is all..."

As he spoke, he took a piece of paper from the side, drew a few simple symbols on it, and explained:

"Boeing's test flight control center is set up in China. The reason why it chooses to conduct the test in the Pacific is not only a common practice, but also has the intention of deterring us, but in any case, this means that their test data needs to pass through a specially modified airborne communication aircraft. Only the node machine can transmit back, and considering the complex communication data of the missile-borne sensor, it is impossible to impose strong electromagnetic interference near the test area, and confidentiality can only be achieved through regional isolation. "

"However, multi-base radars do not have strict requirements for the distance from the transmitter, so it does not matter if the air defense destroyer of the surface ship force is used as the external signal source, even if it is blocked far away from the test area. I have seen the results of this test The danger warning area is not very wide. With the performance of the 346 radar, if it works in a quasi-continuous wave mode with a low probability of interception, it does not even need to be close to the edge of the area. "

"The submarine as the receiving end can maintain a low-speed silent state for a long time. Even if our submarine is slightly noisier, there are no anti-submarine aircraft around the test flight area, and there is no need to worry about the other party's undersea monitoring array on the high seas... What's more important is that No one would think of a submarine performing such a mission, so there is basically no risk..."

Zheng Liangqun looked at the abstract but clear diagram on the paper and quickly understood what Chang Haonan meant.

"Actually, you don't have to worry too much about the noise of nuclear submarines..."

He touched his chin, a slightly showy smile on his face.

After all, there are not many opportunities to point out Chang Haonan's mistakes in person and educate the other party.

But then he thought about it and realized that the person he was showing off seemed to have nothing to do with him, so he quickly calmed down his expression:

"Thanks to advances in the mechanical industry and fluid dynamics over the years, the new generation of submarines has greatly improved in terms of mechanical noise and water fluid noise, although traditional hulls and reactors are still used for risk reduction considerations. Design, but it will definitely not be like the situation back then when I wished I could hear it across half of the Pacific Ocean after setting sail..."

Having said this, he couldn't help but smile.

"As long as the Chinese nuclear submarine is activated in the port, our fleet in Guam can hear the movement." This was an exaggerated description by the US military in the early years.

Of course, the performance of the Type 09I submarine is indeed unsatisfactory.

"In short, we can't say the situation of the newer Sea Wolf and Virginia classes, but even if we consider the enemy from a broad perspective, they should at least be comparable to those late-model Los Angeles classes... Just tell us how to deploy them, and what else? Let’s make some changes.”

Many modern submarines will install radars in the form of masts on the top of the enclosure, or in the form of conformal arrays around the enclosure. However, in terms of size and function, they are not designed to perform air defense search missions like destroyers, so if you want to To realize Chang Haonan's idea just now, it is necessary to carry out additional modifications.

Install at least one antenna capable of serving as a bistatic radar receiver.

However, Chang Haonan's expression was still solemn:

"That's the problem..."

He leaned forward, slightly closing the distance between them.

"The receiving end antenna needs to be aligned with the transmitting end, which means that the size in at least one direction must reach 4 meters. It cannot be stored in the submarine enclosure in any case, and it is even less likely to be placed on the head the whole time. Possibly, the radar antenna itself is fragile and can be easily damaged by underwater undercurrents or marine life, and such a large sail-like object will also destroy the navigation stability and endanger the safety of the submarine itself. "

"In this case, I'm afraid that the attack nuclear submarine is not enough. We have to use a ballistic missile nuclear submarine to free up one of the missile launch tubes to accommodate the antenna and some radar back-end equipment. This way, we can maintain submersion throughout the whole process. After arriving in the mission area Then float to the depth of the periscope and raise the antenna out of the water, so we need to use surface ships to attract the opponent's attention away..."

Zheng Liangqun took a deep breath and didn't even know what to say for a while, other than showing an expression of "How dare you, kid!"

In awe.jpg

But it’s also a bit embarrassing at the same time——

Please...you...Collect_6Ⅰ9ⅠBookⅠ(Six\\\Nine\\\Book\\\!)

Co-author: When I thought about the anti-submarine issue just now, it was not that I thought too much, but that I didn’t know the whole picture and thought too little.

Unless a ballistic missile nuclear submarine is particularly large, it will have a more or less raised turtle-back structure in order to accommodate submarine-launched ballistic missiles, which will affect the underwater acoustic shape and create more noise during navigation.

Seeing the other party's reaction, Chang Haonan asked tentatively:

"The 09IV is a design based on the same platform as the 09III. The progress should not be too far behind, right?"

Zheng Liangqun was stunned for a moment, then replied:

"There is currently one new generation ballistic missile nuclear submarine... It is nominally undergoing testing, but in fact the parts related to the submarine itself are almost completed. However, because the Julang 2 submarine missile is still under development, it is far from finished. Reaching a state of combat readiness..."

"It's just that this thing is a treasure of the entire army and even the whole country. Whether it can be modified to perform such routine tasks... I'm afraid I have to make an additional report, and the superiors will make the final decision."

This situation was not beyond Chang Haonan's expectation.

And he is about 80 to 90% sure that his superiors will agree to this action plan.

"In addition, the angular velocity of ultra-high-speed targets in the atmosphere is very high for radar, so the residence time in an antenna beam is very short. Generally, the echo accumulation effect at the back end of radar is very poor, and the receiving station must be able to quickly detect the received signal. ability.”

In order to improve the success rate of persuasion, Chang Haonan added:

"In this case, you go to Huairou Science City to find Deputy Chief Engineer Xing Muchun and ask him to give you a copy of the radar signal data from the previous hypersonic flight test. Although the double cone we tested and the kiss used by the X51A The signal characteristics of the cut-cone waveriders are very different, but the Doppler dispersion conditions in the Mach 5-6 speed range are similar, which can provide some reference for back-end program design.”

"In addition, according to the echo characteristics of high-speed and high-dynamic targets, the processing effect of the GPU terminal may be better than that of the CPU terminal. You can ask Mr. Guo Linguo of the Electronic Technology Group about this. He should be clearer..."

"..."

After some deliberation, Zheng Liangqun finally made up his mind.

"Then let's do this and try to get our superiors to agree to this plan!"

He put the note written by Chang Haonan into his pocket, then put on his cotton hat and prepared to leave.

"You're already here, why don't you go up and see Qihe?"

When sending Zheng Liangqun to the door, Chang Haonan once again noticed a few gift boxes placed at the door, remembered the excuse for his visit just now, and joked.

A flash of hesitation flashed across Zheng Liangqun's face:

"Forget it, the child is still too young, and it is not good for him to come into contact with too many outsiders."

He said half seriously and half self-justifying:

"If this mission can be carried out smoothly, it will be regarded as a hundred-day gift to little Qihe..."