The Los Angeles-class nuclear submarine is the latest generation of nuclear-powered attack submarines in Eagle Country, and is the product of various advanced technologies in the mid-1970s.

It minimizes noise. In addition to various shock absorption measures, there is also its unique S6G type pressurized water reactor, which is the D2G type pressurized water reactor that has been used on the US Navy guided missile cruisers in the 1960s. The reactor is improved, and its biggest feature is that when the Los Angeles class sails at low speed, the reactor on the boat can operate in natural circulation without starting the circulating main pump in the primary circuit, so as to minimize the noise on the boat.

For nuclear submarines, the biggest noise sources are two, one is the propeller in the tail, and the other is the circulating water pump of the reactor.

For ordinary reactors, even if it is running at the lowest power, this circulating water pump must be turned on. As long as it is turned on, it will make noise.

Like the nuclear submarine of Han, this circulating water pump is so noisy that it was discovered by submarines of other countries from a distance.

However, the Los Angeles class has achieved a miracle. In the low-speed navigation, the primary loop of the nuclear reactor realizes the operation of natural circulation, and the circulating water pump does not need to be turned on. In this way, the noise is greatly reduced.

Of course, if you want the nuclear submarine to sail at full speed, the circulating water pump of the nuclear reactor cannot be turned on. At the highest state, the S6G pressurized water reactor can provide 35,000 horsepower, which can satisfy the nuclear submarine to perform short-range direct support missions. The required high-speed navigation and low-noise navigation required to intercept enemy submarines.

The Los Angeles-class nuclear submarine is the pride of the Eagle State Navy and a weapon for them to fight against the Bear State submarine underwater. Now, it is also a good opportunity for the Han State Navy to practice.

At this time, under water, the Los Angeles-class nuclear submarine was sailing with low noise at a speed of 3 knots, the main circulating water pump was in a stopped state, and the entire nuclear submarine was in silence.

Wearing a clean military uniform, Captain Bill is commanding the submarine forward calmly.

After the current bear country submarine accelerated, Bill realized that the situation was not good, and after pursuing at full speed for less than three minutes, Bill decided to stop the pursuit.

Now, that bear country's submarine had to surface during the depth charge explosion. The tragic situation of this counterpart made Bill also feel the cruelty of the underwater world.

As underwater kings, they must leave here safely. If they are discovered by the other party and are attacked again, they will have a big oolong.

"Sonar buoys are available in all four directions." At this moment, as if they were afraid of something, the sonarman said the voice that Captain Bill didn't want to hear.

Xiong’s submarine has been expelled, and now, there are still people throwing buoys, they must be looking for them!

"Attention, the propeller stopped and we floated with the ocean current." Captain Bill said.

The nuclear submarine is already sailing in low noise. If you want to make the noise lower, you can only stop the propeller. In this case, the nuclear submarine will have no sound, just like a whale, moving with the ocean current. This is the quietest.

"The most advanced in Han is the anti-submarine anti-submarine aircraft imported from Niu. In the past, we could just turn off the propellers and let them return without success." Bill said.

The equipment of the Han country came from the country of Niu, and the country of Eagle and the country of Niu often held joint exercises. In the North Daxi Ocean, anti-submarine training is even more commonplace. It is not easy to find them.

If you only have anti-submarine aircraft, you will not be able to find them, but if you have completed the data link network and have more powerful and advanced algorithms, it will be different.

At this time, the sky is already dark, and the anti-submarine at night will test the combat level of the troops.

"Find the target, direction **, depth***." On the hunter anti-submarine aircraft, suddenly, the system has screened the target!

"Let's do the same, hit two anti-submarine deep bombs!" General Zhao said.

When dealing with the Xiong State submarine, you are welcome. A dozen anti-submarine deep bombs have passed. Now, knowing that the submarine of the Eagle State Navy is being dealt with, I have to show some face, and forget it.

In the black night, two anti-submarine deep missiles dragged the flames and flew out of the rocket launcher.

Sitting on No. 111, Qin Guan knew that this anti-submarine warfare would soon come to an end.

"The nuclear submarines of these Eagles and Bears are very advanced in technology, and the underwater noise is very small. Our current anti-potential capacity can already find them. It is not easy. However, our submarines do not know what. Time can reach this level."

General Zhao was waiting for the news of the other party's submarine floating up, and at the same time, he was continuing to chat with Qin Guan about the construction of the navy.

Han's nuclear submarines only solve the problem of existence. The noise is quite loud. The technology is a role that will be tracked as soon as they leave the port. If it is really caught by the opponent's surface ships during the war, it will end up better than The submarines of the bear country and the eagle country are going to be miserable.

"Yes, our defense industry has big flaws, especially submarines. We need our scientific researchers to continue to work hard and study advanced technology." Qin Guan said: "On nuclear submarines, the most important technology is nuclear reactors. "

When talking about nuclear reactors, suddenly, in Qin Guan's brain, there was such a word, high temperature gas cooled reactor!

The principle of nuclear reactor is very simple, that is, using nuclear fission to generate heat, just like using a boiler to boil water is a principle, and a nuclear reactor is a big boiler.

Ordinary reactors are all pressurized water reactors. The nuclear materials are immersed in liquid, and the liquid flows. On the one hand, it dissipates heat from the reactor, and on the other hand, it takes the heat away to heat the secondary circuit and drive the steam turbine.

The pressurized water reactor is already the most mature nuclear reactor of this era. In fact, when scientists first started to study the reactor, the first thing that came to mind for the choice of coolant was gas, such as carbon dioxide.

For example, an ordinary graphite-moderated reactor core, coupled with several powerful blowers, can easily form a reactor. The structure of the electric blower is far simpler than that of the main pump of the current PWR, and the air-cooled core never has to worry about nuclear leakage, let alone the leakage of coolant.

In extreme cases, as long as the air is blown against the core, the core will not have the risk of meltdown, and the safety is much higher than that of the popular pressurized water and boiling water reactors!

Therefore, in the early development of commercial reactors, all countries have chosen the technology route of gas-cooled reactors without hesitation. Niu Country is one step ahead and built the first commercial air-cooled reactor in human history. The dying sun never sets once again to show the world that its lean camel is stronger than a horse.