Chapter 246 Battle of Ryukyu Island 4

On another battlefield, Cheng Biguang looked at the scanner silently in the V5-012B submarine, and the needle kept trembling on the white paper, scanning out the surrounding sound wave detection results.

His submarine is newly built. As a test ship, it is equipped with a new model of underwater sound monitoring system, with active sounders and multiple sound meters in different positions.

When the submarine is in a horizontal position, the monitoring effect of the sound meter will be better. Therefore, he has been directing the submarine to sail around the six Ningyuan-class battleships of the main fleet.

The active sounder can make a special sound that can't be heard by human ears. The sound meter conducts feedback monitoring and determines the position of the opponent through at least three points of echo feedback.

This avoids the inherent shortcomings of passive sounders. In this messy battlefield, it can still effectively monitor underwater targets.

The submarines arranged by the destroyers are mainly concentrated in the area from 15 meters to 30 meters deep, the V5-012B is 40 meters deep, and the other three V5-B series submarines, which have also been modified with the new system, are active at a depth of 55 meters, or other sea areas.

The needle is still the same as the monitoring results just now, with a violent vibration, constantly drawing a large fluctuation chart.

Specially trained personnel are needed to interpret the fluctuation chart. Cheng Biguang is one of them, the captain of this submarine, and the earliest military commander to devote himself to submarine engineering in China. He is responsible for formulating the submarine training manual and the submarine training manual currently used in China.

Through two consecutive feedback scans and almost the same fluctuation chart, Cheng Biguang can confirm that there are indeed two submarines with different specifications from V5 nearby, about a thousand tons... This number is roughly guessed by the length of the target submarine, and he did not dare to be completely sure.

This data is different from the intelligence notice he received before. Obviously, Japan has two models, or even three models of submarines, which is the largest known so far.

The submarine is active in a 40-meter-deep area, avoiding the magnetic mine defense area.

As the fifth cadet of the driving class of Fuzhou Ship Administration School and the third batch of admiral generals in the UK, Cheng Biguang's business literacy and psychological quality are very excellent, and he is regarded by Ye Zujue as a future admiral.

Therefore, Hu Chuyuan transferred him to the submarine engineering and served as the first captain of the submarine force.

In a short moment, Cheng Biguang thought calmly. First, he generated electricity to other V5 submarines and Ningyuan through radio devices, and recruited three V5 submarines to maintain them at a depth of 55 meters at the same time.

The opponent's diving speed is very slow, and it should be less than 5 knots, which basically can't escape.

He was like a wolf lurking in the dark, quietly gathering new teammates, attacking from the northern line, and letting Ningyuan and the main fleet retreat a little distance to prevent the other side from firing torpedoes.

Although the submarine should not have the ability to launch torpedoes and aim at targets at such a deep position, Cheng Biguang still hopes to be as careful as possible. A Ningyuan is worth 40 million yuan, almost 45 times the cost of a single V5 series submarine.

Slowly, as if time had stopped. The two unknown submarines were still trying to approach the position of Ningyuan, but they were only groping with the original observation results. There was no doubt that they had neither installed a radio device nor a sonar system.

This is simply two big blind men trying to stage a scene where a blind cat meets a dead mouse under the water.

Is it really...?

Cheng Biguang couldn't help frowning. He only felt an incomprehensible feeling. He couldn't imagine that he wanted to fight submarine tactics with such a submarine. Do you want to defeat China with this power?

He thought, did he dare to gamble too much?

Time is indeed static. In the depths of the sea, a strange killing and pursuit is unfolding... Wrong, this is a real pursuit. The two Japanese submarines are just blind submarines, big, and the actual tactical value is not high.

In fact, the Japanese submarine has a radio receiving device.

The reason why the General Administration of National Intelligence lacks information in this regard is that the radio technology started very late. Last year, two devices were introduced from France, and orders were increased at the beginning of the year. While France takes strict confidentiality, its technical level is not as good as that of Germany and the United States, let alone China.

First, the number of radio communication equipment introduced by the Japanese version from France is small, the technology is poor, the self-major, the power is small, and more unstable. The Japanese version does not even have a corresponding Japanese wireless communication password. It also copied the French design, and the French-speaking soldiers are responsible for receiving and sending. Second, the Japanese version installs this kind of radio communication. It is regarded as a top-secret artifact, only equipped in submarines, and the headquarters only commands all sets of switchboards, which limits the use of radio in the whole navy. Third, this is the fate of history. It is said that the navy only has a set of central receiving devices in the command post... As a result, the antenna device was hit by It was blown up and lost the ability to communicate with submarines.

Now, Ijiin Goro can't command the submarines at all. The submarines can communicate by themselves, but that is the communication between the blind and the blind.

Everyone can only ask each other... Are you dead?

In contrast, China's radio technology is a prominent leading position in the world. Marconi and Tesla, two major experts in the world's radio field, jointly own a wireless communication laboratory at the Shanghai Asia Wells Fargo Research Institute. In China, China also relies on this laboratory to cultivate Chen Jinkui, Zhou Chuanyu, Zhou Chuanjun, Kuang Guoguang and more than a dozen other experts in the field of wireless communication, under the leadership of Nikola Tesla and Chen Jinkui, are still conducting theoretical and practical research on the thermoelectron effect discovered by Edison in China, and developing the first generation of diodes... This is the technological gap between China's radio technology and Europe and the United States. The main reason.

The fate of history is strange. Just as Japan bought the first radio communication device from France, in May 1899, the diode was invented in the wireless communication laboratory in rich countries of Asia. The inventors were L. DeForest and Chen Jinkui, American employees of the laboratory.

Since then, it was not until July 1900 that Fuzhou Hyundai Telecom Co., Ltd. created a new wireless communication receiving device. Before there was a diode, it was not a problem to send a radio signal. The difficulty was to receive the signal.

It is said that there are radio transmission devices between the 100-class submarines, but even so, the two sides ask, "Are you dead?" They have to pull the power to the maximum and send it as many times as possible.

Basically, they can only send the simplest signals to confirm passwords such as "attack" and "by".

Cheng Biguang can't understand all this. If he knew it, he could only say... he was crazy.

Four V5-class submarines have confirmed each other's position and their own positions through radio communication. Through multi-point confirmation, and with the assistance of two shower-class destroyers with balance beam towing active monitoring devices, they quickly locked their opponents accurately.

Two against one, four against two, four people fight two blind people.

Deep-water torpedoes were quickly launched. In order to achieve the effect of a single kill, four submarines each fired two magnetic guided torpedoes, which can correct and guide themselves through the magnetic attraction principle after the launch mileage exceeds 500 meters.

In order to avoid accidental injury, after the transmission time exceeds 6 minutes, the magnetic surname mechanism relay will automatically cut off the electrical circuit and pause the magnetic surname guidance function.

Even so, the possible surname of accidental injury is still very high, so there is a principle that must be observed when using this kind of torpedo, that is, its own ships cannot be cross-layed, but can only be arranged vertically.

Soon, the V5-012B submarine was constantly shaken by a layer of huge waves under the water.

After the seabed gradually calmed down, Cheng Biguang immediately started the acoustic monitoring system. Because the residual fluctuation after the target exploded too much, it was not until more than a minute later that it was finally determined that both of the opponent's submarines had been sunk.

Everyone is very excited. This is the first time that Chinese submarines have made contributions in history.

At this time, every submarine commander, including Cheng Biguang, realized a little... The second and third opportunities were in front of them. They kept expanding their search area and looking for opponents in the depths of the sea.

Coupled with more than a dozen shower-class destroyers patrolling and monitoring the surrounding waters, many Japanese submarines that reluctantly rushed out and had left the port in advance were arrested one after another.

In Jinwu Bay, another worse problem began to appear. A large number of Japanese submarines lurked at the bottom of the sea for more than 35 minutes and could not break through the blockade line were forced to surface one after another.

Watching the submarines sailing back to the base one by one, Ijiin Goro was suffering and tormenting himself bitterly. The great dream of the empire and the cruel reality were entangled together, twisting his heart like poison, and he was about to tear his heart to pieces.

When the data of the Qing Pacific Fleet exceeded his expectations and intelligence speculations, and appeared in front of him, he already knew the outcome.

The bigger tragedy has just begun.

Ijiin Goro is very clear that the "china navy" is using a large number of new weapons, especially torpedoes and new types of warships. The warships produced by Japan and built by France are not as good as the "chinan" warships at all.

It is also a main gun between 12 inches and 12.5 inches. The opponent can easily break through and sink the Japanese warship. Even if the Japanese main gun hits the opponent, it cannot produce a fatal blow.

The gap between the two sides is already all-round. The stability of the main gun, the rate of fire, and the penetration of fire, especially the time-lapse armor-piercing shells used by the Pacific Fleet, even in France. So far... It is the first time that Ijiin Goro knows that there are countries that can industrialize production and use, rather than just staying in reality. In the laboratory.

Except for the six Ningyuan-class battleships, including the flagship, the Pacific Fleet uses steam turbine units and mixed fuel boilers, and even pure heavy oil boilers.

In the design of the hull, whether it is the armor protection design, stable balance and anti-sinking ability, acceleration maneuvering ability; in the firepower system, whether it is the main gun's shooting hit rate, stability surname, secondary gun coverage and shooting speed, penetration ability; in tactical execution... the all-round gap is completely irreparable. .

Battleships, cruisers, destroyers, defense ships, torpedo assault ships, torpedo assault boats, multi-purpose patrol boats, gunboats... This is a battle of all-round naval strength. In all aspects, Japan is almost below.

Both sides are constantly sending assault ship clusters to attack the opponent's main warships. The Pacific Fleet can quickly annihilate the Japanese assault fleet with a large number of destroyers and a large number of secondary artillery systems, but it is impossible to do this. Some ships are constantly sunk by assault boats.

In terms of torpedo technology, the gap between the two sides is more obvious.

In terms of the army, a K-type division used all available fortifications to be easily defeated by the same number of integrated divisions. As soon as the land battle lasted for four hours, the four defense lines of the 14th Division were torn apart one after another, and the defenders were lost.

The 15th Division of the Japanese Army, which came to rescue from the Kadena area, was easily intercepted by the troops of a regiment, and then torn and cut by the new troops that caught up with it. Until now, Ijiyuan Goro did not know which "china" army was so brave and directly cut the 15th Division in half.

The gap in the army is also comprehensive.

Now, Ijiin Goro suddenly has an epiphany... The reason why the previous Ryukyu garrison is easy to deal with is that they are more like bait, and what they meet in front of them is the main force and real strength of the "china people".

There is still the eternal discrimination against the Chinese in my heart, but Ijiin Goro has to admit that the loser of the second war... is destined to be Japanese again, unless France officially declares war on China, in that case...!

"In that case... it doesn't seem to make sense!"

Ijiyuan Goro looked up at the sky indifferently, thinking in his heart that the hot-blooded and loyal imperial generals he loved had been damaged, like countless young flying cranes, who fell into the muddy swamp one by one in the air.

On this ruined fort, Ijiin Goro, known as the last admiral, slowly pulled out his sword and pointed the tip of the knife at his lower abdomen...!

He doesn't want to die. He just feels that... As a warrior of the great empire, instead of living in a Japanese book with no hope and a great future, instead of living in a Japanese book destined to have no future, and living in an era ruled by a group of low-level ignorant Chinese people in Asia, it is better to die in this once glorious place.

At least, he fought bravely with the Chinese for the future of the empire and his children.

Until this moment, he still firmly believes that the battle will continue. Although it will not be in his generation, there will always be a day when he will defeat China and become the hegemon of Asia.

At that time, the solar flag of the empire will surely shine in the whole of Asia, with the largest land and resources in Asia...

At that time, China was no longer a nightmare in everyone's heart.

Work hard, my Songzhi... I'm sorry that I can't let you live in the arms of a powerful empire.

At the last moment of his life, Ijiin Goro thought of his son, who was only seven years old.

(to be continued)