"Is this the secret weapon of the empire?" The captain of the Fusang battleship, Sakakura, looked at the oily sea with large tracts of garbage floating in the distance, and couldn't help but feel sad and angry.

When they heard that the Empire had 8 submarines and land fighter jet formations launched an attack together, the commanders of each ship also breathed a sigh of relief.

With more air cover and attacks from fighter planes and the raids from undersea killers, the Japanese felt that they were more sure of winning the bet.

But the facts are always beyond their expectations.

"The Japanese submarine was like marching on a big drum!" Sergeant Li Changlin rubbed his ears and said to the commander who asked him, "You don't need to look for such a conspicuous target, do you still need to be wary of it?"

The Japanese decided to use submarines to attack the main warships that severely damaged China, so they sent all eight submarines out to take the lead early.

But obviously the Japanese overestimated their submarines.

It should be said that some of the Japanese World War II submarines had good performance, with many submarines of more than 3,000 tons, and even built strange things like the i-400 submarine. Several ocean-going submarines had outstanding performance and could directly sail to the west coast of the United States. The most prominent one was that the Japanese had super advanced weapons such as oxygen torpedo. Whether it was the anti-ship Type 93 or the anti-submarine Type 95, it was much stronger than the unreliable torpedo of the Americans at the beginning.

But on the other hand, its submarine technology is very poor. Due to the material factors, the submarine depth of Japanese submarines is generally only thirty or forty meters, which is not even a fraction of the German submarine. Only in the later stage will a 100-meter submarine appear.

Also due to the weak technical foundation of the Japanese, the performance of Japanese submarines' homemade diesel engines is not good, but in order to pursue output power, the noise is extremely loud and it cannot play a hidden role as a killer at all.

As long as the submarine is discovered by the opponent in advance, the threat will be greatly reduced, and it is often difficult to protect itself.

In front of the Chinese ship sonar, these Japanese underwater ninja turtles were discovered. In fact, their whereabouts had long been known by the Chinese Navy.

The Japanese submarines were barely good in World War II, but their tactics were extremely bad.

They are stingy and generally do not use expensive torpedoes to attack merchant ships, and because their earliest opponents were mainland countries like China and the Soviet Union, they neglected the importance of breaking the war.

Moreover, the command of Japanese submarines is extremely rigid, and even a strict regular floating system is established, neglecting the flexibility in actual combat.

It is their continuous and regular floating that made the Kirov airship discover them early and spread the news back.

The Chinese Navy immediately activated a variety of sea search radars and sonar equipment, and even specially turned on the monitoring system of the Japanese radar and added insurance.

With cloned spies and professional code-breaking teams assisted by electronic computers, the Japanese passwords are no longer secrets. If it weren't for training, the Japanese submarines would have been locked by the Chinese command airship and were directly sunk.

But at this time, the Japanese submarine rumbling was surging and had no stealth. The specific location and coordinates were determined by the Chinese Navy.

The Japanese greedily set their targets for two. One team was locked on the second-level fearless battleship paraded near the Saga sea. One team attacked the second-level Red Police aircraft carrier with relatively weak armor, trying to lock the victory in a sneak attack.

...

"The target position has been determined..." Hashimoto, the captain of the Yi 58 submarine who was squinting his eyes and leaning against the periscope, kept reporting data from his mouth, but suddenly found that the target of the Zhenyuan-class battleship ahead was blocked by an increasingly larger figure.

When he adjusted the focal length and looked closely, he was seeing the busy sailors on the deck of the Killing-class destroyer who were sailing at high speed preparing for deep water bombs.

"Boom!" Before he could pass the order of caution to every corner of the submarine, his submarine was hit hard.

"There are submarines!" The listener said a step late. The underwater explosion near the tail rudder of the Yi-58 submarine had caused the submarine made of materials with much poorer performance to crack many holes.

"Baga!" The silent approach of the Chinese submarine made Hashimoto curse, but at this time he didn't care who was responsible. He needed to decide immediately whether to rush over to attack immediately or dive into abscond.

His subordinates panicked and shouted that the pipeline inside the submarine was damaged and broken. The sound of the influx of sea water made him quickly decide. According to the material of the Japanese submarine, in this case, diving was undoubtedly a life-and-death death. It was not even necessary to attack the Chinese. Just sea water could make the damaged submarine an iron coffin sinking to the bottom of the sea.

"Roar over and attack towards the established target!" At this time, he no longer cared about whether to enter the encirclement of the Chinese. It was what he wanted to accomplish the final goal.

The submarine environment is more likely to cause mental breakdown. Therefore, the requirements for submarine personnel are stricter. In order to support the nerves, the Japanese-specific Bushido and fanatical aura are more obvious in the submarine force than other naval officers and soldiers.

The young Ieyou Hashimoto was ready to sacrifice himself. He was sure that as long as he got closer, the invincible Type 95 torpedo could be launched from a distance and gave the battleship a heavy blow.

"There is a submarine quickly approaching us in the rear left!" the listener shouted hurriedly.

Fortunately, the power system was not severely damaged. It still used a high speed of 6 knots underwater, but the sonar was surprised to find that the speed of the submarine chasing behind reached a high speed of 17 knots.

"Is this a torpedo or a submarine?" He didn't know that the xxi submarine following behind could increase its speed a little more, but he was already shocked by the 17-knot high speed.

At this time, the submarine surface speed was very fast, just like most Japanese Type B submarines can reach 23 knots, but they can only run at most 8 knots underwater. How can it not surprise people with double the speed, especially the xxi submarines that rely on electric motors are still so small.

But he no longer cared about this, and some bad voices came from the sonar.

"With a torpedo, be careful!" The listener was particularly familiar with the noise of the Type 95 torpedo and couldn't help but exclaim.

But the Xxi-class submarine built with Type 95 torpedoes with the same equipment and absolutely reliable quality has been sent to a surprise.

"Boom!" No. 58, who accelerated and rushed forward, was hit hard again.

This time, it did not escape the fate of becoming an iron coffin.

The huge pressure of the sea water crushed the moans of the steel skeleton of the Yi 58 submarine. It completely disappeared into the silent underwater shady curtain with the regret of not completing the heavy patrol of the Indianapolis like in the previous life.

...

"Two ships were directly sunk, and one of them began to float up. They were surrounded and annihilated by those destroyers, and another one was hidden. But it could not escape. As long as it moves, deaf people could hear it!" After hearing the report from his subordinates, Zhong Shuqian nodded and said nothing.

This time, at his proactive request, the same four Chinese submarines practiced the submarine anti-submarine tactics of the Assassin against the Assassin in actual combat.

I had encountered Japanese submarines in the East China Sea and the Yellow Sea before. Although I had several records, this kind of formation attack tactic was the first practical exercise.

The result was still quite satisfactory, but when he thought of the information of the American submarine force, he still did not dare to be complacent. After all, the Japanese submarine team was far behind the Germans and even Americans.

"Float! Leave the rest to those destroyers!" Zhong Shuqian ordered.

Since it is a practical exercise, the guard must be safe.

Six Killing-class destroyers are escorting nearby.

However, they are ready to go without this anti-submarine exercise. Since the submarine force has already acquired the record of two submarines, they naturally have to let the water surface troops appear.

The sonar of those Killing-class destroyers has locked in the target, and the deep-water bombs have been ready long ago.

Chinese submarines will also be affected by hiding in the water, and they need to stay away from the dangerous areas first.

During this period, the Japanese Sea 7 submarine that was severely damaged and had to float was wanted to float up and fight.

But it had only time to launch two Type 95 torpedoes, and was hit by the mk.32 dual-connected 127mm high-level dual-purpose cannons of the three Killing-class destroyers that rushed up, and then they were beaten and sunk again.

"Boom boom boom!" A group of Killing-class destroyers were still unsatisfied. A dozen deep-water bombs smashed them in one breath as if they were not worth the money.

Active sonar had long discovered the general coordinates of the Type B i submarine that had sunk to an extreme depth of 100 meters. When the Japanese were lucky enough to escape this disaster, the deep-water bomb that was scattered directly shattered their dreams.

When a large area of ​​oil and garbage floated onto the water, the entire sea surface finally became quiet.

Even another battlefield more than ten kilometers away had already become quiet.

The four Japanese submarines attacking the aircraft carriers were unfortunately encountered practical combat exercises of China's air anti-submarines. Some submarines were even killed by dense deep-water bombs thrown by eight Katarina seaplanes and four Black Hawk helicopters before they even saw the target.

The submarine, one of the secret weapons mentioned by Toyota Juntake, was already done first, and the support of another fighter jet from land was also unreliable.

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