If it is understandable that you care about the Army, Bi Jing, you came from the Army. But you should treat our Navy and their Air Force equally, right? Why is there such a preference for one over the other? ”

Guo Zhuocheng looked at him with tears and laughter, and said, "You are not afraid that the generals around you will laugh at you when you say this?" Saying this is like a resentful woman, where is it like an admiral or a commander? ”

Liu Zhengbang's eyes glared at the person next to him and said, "They dare!" I'm doing it for their good. ”

Gong Dingguo, commander of the South China Sea Fleet next to him, said: "Director Guo, don't say it, our opinions on you are really not small. If it weren't for Commander Liu's persuasion, saying that you are too busy with your affairs, and that you have no way to take care of us for the time being, we would have gone to your office a long time ago to ask, why didn't you take our navy to heart? ”

Guo Zhuocheng smiled bitterly: "It's really crooked on the upper beam and crooked on the lower beam, the commander just complained, and the commander came to complain." I said, are you here to open my eyes, or are you here to make me look foreign? ”

When Liu Zhengbang heard this, he laughed out loud and said to Gong Dingguo: "Commander Gong, you should take me and Director Guo to see our new submarine." ”

Under the leadership of Jiang Haitao, deputy chief of staff of the South China Sea Fleet and commander of a submarine, he walked towards a heavily guarded military port, and changed into a transportation vehicle provided by the military port on the way.

Seeing the submarine lying quietly in the sea like a giant fish, Guo Zhuocheng, who had already prepared in his heart, still felt a shock. The Navy is indeed different from the Army and the Air Force, and compared to those two services, the Navy submarines, especially those large warships, are really a giant surviving.

When Guo Shucheng, Liu Zhengbang, and Gong Dingguo arrived at the dock, Jiang Haitao, who is also the captain of the submarine, proudly introduced: "Although this submarine is a conventional submarine, its power adopts the latest VIP technology. These include a double-hull teardrop hull, a cruciform tail, a single axle, and a front horizontal wing on the sail cover. It is the latest submarine developed and manufactured by China in combination with the technical characteristics of submarines from the United States, France, and Sweden.

It has a total length of 81.3 meters, a width of 8.9 meters, a draft of 7.2 meters, a surface displacement of 2,300 tons, a full load displacement of 3,000 tons, and a crew of 63 meters. The design underwater speed is 21 knots, the surface speed is 12 knots, the underwater endurance is 400 nautical miles/4 knots, the surface endurance is 3,500 nautical miles/8 knots, and the maximum depth can reach 200 meters.

Compared with the past submarines, the most obvious improvement is the use of closed-cycle diesel engine as the generator prime mover, and the drive adopts five-axis linkage CNC machine tool processing of seven-bladed propeller. Because of these two improvements, it has a long underwater endurance, low noise and high drive efficiency.

Its armament is four vertical YJ-802 anti-ship missile systems, six 533-mm torpedo firing installations. It also installed a planar search radar and an active/passive sonar system. ”

Speaking of this, Jiang Haitao paused deliberately, and then said proudly: "On this submarine, in addition to the technology mentioned above, we have also adopted SGS-100 polyethylene, a newly developed submarine-specific substance, for the first time - submarine hull slime, a high-tech product that only Sweden and the United Kingdom have. It uses the mucus secretion system installed in the submarine to secrete this mucus from the submarine's hull, like a catfish or eel, forming a protective film on the outside of the submarine like the slime on the body of a fish. This protective film can not only reduce the running resistance of the submarine, but also reduce the noise of the submarine, and even degauss the submarine on a certain distance, making it difficult for the enemy to find our figure. ”

Listening to his introduction, Guo Zhuocheng was dumbfounded, because he had only heard about Guo Zhuocheng in his previous life on the Internet, and he couldn't help but feel that China's scientific and technological development speed was too fast, right? At least fifteen years ahead of the previous life.

It's just that he thinks it's only fifteen years in advance, because in his previous life, he didn't have the opportunity or permission to contact such extremely secret information, and what he saw and heard was circulated on the Internet. This information can be uploaded to the Internet, it must have been after the troops declassified it. The time difference in the middle is at least ten years, so Guo thinks that it is appropriate to only advance by fifteen years.

Thinking of fifteen years in advance, Guo Zhuocheng was pleasantly surprised, but also able to understand, because the Air Force's J-10 fighter was not only fifteen years in advance? The army's cruise missiles are at least twenty-five years ahead of schedule, and it's normal for submarines to be fifteen years ahead of schedule, but it's just because I don't know much about the navy that I'm a little surprised just now.

Seeing the look of surprise on Guo Zhuocheng's face, Liu Zhengbang asked proudly, "Director Guo, how do you feel?" ”

Guo said sincerely: "It's really good, it's very unexpected to me, I didn't expect our submarines to develop so fast." ”

Liu Zhengbang laughed and said, "Let's go, let's go up and have a look together." ”

Through the narrow passage, they carefully inspected the various cabins of the submarine, and Jiang Haitao personally explained by the side.

Guo Zhuocheng's attention was mainly focused on the submarine's engine system, weaponry, and electronic system. This time, he didn't have the idea of pointing fingers here, and he didn't think that he could propose anything in this unfamiliar field, he just watched and listened very modestly.

The engine AIP system he focused on was the closed-cycle diesel engine as the generator prime mover DAIP). As we all know, the most lacking thing in a submarine is oxygenated air. In order to make the diesel engine in the submarine work normally under the submarine air without sufficient oxygen content, and to work to drive the generator, it is necessary to provide the diesel engine with a gas that simulates the air composition to make the diesel engine work normally.

To this end, submarine designers adopted the method of absorbing part of the carbon dioxide gas from the exhaust gas of the diesel engine with a carbon dioxide absorber, and adding an appropriate amount of oxygen to the part of the exhaust gas that is not absorbed, so as to form the atmosphere. However, due to the fact that the carbon dioxide content in the atmosphere is still more than that of fresh air, the specific calorific value of the air is lower than that of normal air, in order to ensure the normal operation of the general standard diesel engine in the closed cycle state, the designers also add an appropriate amount of inert gas - argon gas to this circulating gas, so that the specific heat ratio of the mixed atmosphere and the normal air is consistent.

In this way, the diesel engine can work normally in the closed cycle state, and can also work normally when the open air is supplied to realize the opening and closing. In order to efficiently absorb the carbon dioxide in the exhaust gas of the diesel engine, the high-temperature and high-pressure exhaust gas discharged from the engine should be cooled to 80~100°C by spraying. The cooled exhaust gas is then sent into the carbon dioxide absorber, and part of the carbon dioxide gas is filtered and then mixed with oxygen and argon in the mixing chamber and sent to the engine.

In order to make the whole AIP system work in harmony, the whole system is strictly controlled by the computer. In order to ensure the supply of oxygen, a large capacity liquid oxygen tank was set up in the submarine, as well as several argon cylinders with a smaller volume.

The advantage of this DAIP is that there are almost no major changes to the existing diesel engine, reducer, generator, etc., and the previous equipment can almost be directly assembled into the new submarine, which speeds up the design and construction, and can improve the underwater navigation time of the submarine.

The second focus of Guo's attention was on the armament of submarines, in which he saw the smaller YJ-802 anti-ship missiles. The YJ-802 is obviously an improved version of the YJ-801, which is an improvement in all aspects to adapt to the way the submarine is launched, but many of the components in it are appropriated from the YJ-801 anti-ship missile. This is not because the scientific research personnel are lazy, but because the YJ-801 anti-ship missile is already a mature and successful product, and the scientific research personnel will naturally fully tap its advantages and make use of it.

The torpedo, on the other hand, was a big man, much larger than the anti-ship missile. The difference between an anti-ship missile and a torpedo is like the difference between a thin man and a fat man, which makes Guo Zhuocheng even a little doubtful about the power of anti-ship missiles.

Under the leadership of Jiang Haitao, the acting captain, Guo Zhuocheng also visited the submarine's sonar listening room, the crew's lounge, the dining room, and the officer's lounge. Then they met again in the command cabin and listened to Jiang Haitao explain the submarine's capabilities, characteristics, and problems with the old submarines in the past, so as to feel the excellence of the new submarine.

At this time, Navy Commander Liu Zhengbang said to Guo Zhuocheng: "Director Guo, you have seen everything you should see, is there anything else you want to know?" This submarine is fortified for you anyway, and we will show you whatever you want to know, but my hope is that you can point out the problems it has so that we can further improve it. We will carefully feedback your comments to the research institute, so that they can solve or answer them one by one. ”

Guo Zhuocheng said with a smile: "I'm a submarine blind, so I just came here to see the excitement." Seriously, I think this submarine is very good, very good, and very proud of our navy. How long have the sea trials been? ”

Jiang Haitao said: "It has been a sea trial for more than two months, but we have not fully mastered it. We also need experts from the factory to guide us, and we can go to sea alone with two months of sea trials. ”

Guo Zhuocheng didn't know the trial time of the submarine, and he didn't even understand the process of the submarine's official commissioning, so he just smiled and said that he heard it.

Liu Zhengbang said with a smile: "Director Guo, you are too modest like this, I don't believe you really have no ideas." ”

Guo Zhuocheng hurriedly said: "I, Guo Zhuocheng, am not modest. You think I'm a god, so I can give my opinion by looking at it like this. ”

Liu Zhengbang looked like he had succeeded in his plan, and said with a smile: "Haha, it turns out that Director Guo said that we didn't take you out to sea." It's easy to do, so we'll go to sea. Saying that, he ordered Jiang Haitao, "Deputy Chief of Staff Jiang, go to sea!" ”