The Daoyu-class submarine is too large, with an underwater displacement of nearly 5,000 tons. In the early 1890s, it was an underwater giant.

Compared with the Sawfish-class submarines of the Chinese Empire, the submarines of other European and American power countries are really weak.

As of early 1893 AD, nearly 5,000 submarines were built in countries around the world, of which as many as 2,000 were in service.

From 1863 to the present, in the past thirty years, more than 2,000 submarines in countries around the world were sunk, nearly 600 submarines were sunk or damaged due to various accidents, and less than 400 submarines finally died.

In the past decade, there has been no large-scale military conflicts on the surface between the Allies and the Allies, but in fact, there has been constant secret war between the two camps.

And under the sea, it is not known by the world, which is the main battlefield for the secret battle between the two major military groups.

From the Pacific Ocean to the Atlantic Ocean, from the Arctic Ocean to the Indian Ocean, the four oceans around the world, and under the fifteen major sea areas, there are traces of battle everywhere, and countless submarine wrecks are lying on the bottom of the sea.

Most of the sunk were submarines from allied countries, accounting for more than 90% of the total.

Especially Britain, the United States and Japan were abused by the anti-submarine destroyers of the Chinese Empire.

Because the anti-submarine destroyers of the Imperial Chinese Navy were equipped with sonar, they could easily detect enemy submarines moving under the sea, resulting in heavy losses to the Allies.

Especially in the Pacific, this place is regarded as its own inner lake and sphere of influence by the Chinese Empire, and other countries are not allowed to be involved.

The submarines of Britain, the United States and Japan, which were unwilling to fail, were hit hard in the Pacific region.

Nine out of ten submarines that went out to sea to work in the Three Kingdoms could not return, which once made the British, American and Japanese navies red and almost fought to the Chinese Empire Navy.

But this was a secret war. The Chinese Empire did not admit to sinking their submarines, and Britain, the United States and Japan had no evidence to prove that their submarines were sunk by the Chinese Navy. Although they knew very well that the Chinese Navy had done the case, unfortunately there was no evidence.

Of course, even if there is evidence, it is impossible to make a statement. After all, the Allies do not have the courage and confidence to go to a full war with the Chinese Empire and the Allies.

Since you have to endure it, you have to bear such huge losses.

The Allied Forces suffered the most losses in the submarines of Britain, the United States and Japan. They directly faced the powerful submarines and anti-submarine destroyers of the Imperial Navy, and directly lost more than 2,000 submarines in thirty years.

Especially on March 5, 1889, this day was listed as a submarine festival by the navies of the United States and Japan.

Because on this day, the United States and Japan directly lost six submarine squadrons, and 120 submarines were wiped out, and they were directly destroyed by the Imperial Chinese Navy.

On this day, the submarine forces of the United States and Japan secretly conducted joint submarine combat exercises in the Arctic Ocean, with the purpose of jointly responding to the threat from the Chinese Empire's navy, and also blocking the maritime traffic lines of the Chinese Empire during wartime.

In order to avoid the reconnaissance of the Imperial Navy, the navies of the United States and Japan deliberately stayed away from Pearl Harbor in the Pacific Ocean to prevent the Imperial Navy's Pacific Fleet from sneak attacking.

But the United States and Japan did not know that their communication passwords were cracked by the Chinese Empire. The Chinese Navy learned that the United States and Japan would secretly conduct joint submarine combat exercises in the unmanned waters of the Arctic Ocean.

Therefore, the Chinese Empire navy took advantage of the situation and secretly sent out the main submarine force.

More than 200 Chinese submarines equipped with sonar and radio systems quietly entered the US-Japan exercise area and launched a sneak attack.

Because the US and Japan submarines do not have radio communication systems during the exercise, they cannot warn even if they are suddenly attacked. Many US and Japanese officers and soldiers even did not know that it was an enemy attack and thought it was an exercise.

As a result, within a few hours, all the American and Japanese submarines were wiped out.

The US-Japan surface fleet, which found something wrong, was bombarding everywhere like crazy. Unfortunately, they did not have a sonar system and could not lock in the submarines of the Imperial Navy, and ended up in vain.

This time, the United States and Japan suffered heavy losses, and thousands of submarine officers and soldiers were killed. The United States and Japan could only accuse their domestic submarine manufacturers of slandering them that there were huge hidden dangers in the submarines, but they dared not publicly say that they were destroyed during the exercise, because there was no evidence, and it was even more embarrassing to say it.

In short, both the United States and Japan are counted on the Chinese Empire, waiting for revenge one day.

Most of the submarine losses in the Allied camp were basically caused by the Imperial Navy. After all, the Imperial Navy has sonar technology that other countries do not have, and no one can defeat it.

For a time, the powerful anti-submarine combat power of the Imperial Navy made the British, American and Japanese navies frightened and changed their fear when they heard it. In recent years, the submarines of the Imperial Navy have almost disappeared in the Pacific Ocean, and the number of trips to sea decreased to one or two times a year. They dared not wander to the deep sea, and they must travel with the fleet to prevent them from being killed by the Imperial Navy.

However, in the Mediterranean, North Atlantic, Baltic, Black Sea and other waters, the Allies' submarine confrontation between the Allies and the Allies is still balanced.

This is mainly because the Chinese Empire's Navy's activity in these waters is not very frequent and the scale of activity is not large, and the pressure on the Allies is far less than that in the Pacific direction.

The Allies only faced the German Empire of the Allies. As for the Austro-Hungarian Empire, the Ottoman Empire, and even the Kingdom of Italy that later joined, the submarine power of these three countries was minimal and did not pose a threat to the Allies at all.

Although the submarines of the German Empire also introduced the submarine technology of the Chinese Empire, the Chinese Navy did not export key equipment such as sonar, radio, air compressor and other systems.

Therefore, the submarine forces of the German Imperial Navy were actually comparable to those of Britain, France and Russia.

However, as the Allies have gradually mastered sonar technology, although it is not very advanced and cannot be compared with the advanced sonar equipment of the Chinese Empire, at least the Allies' submarines are no longer passive, and sonar can also be used to anti-submarines and track submarines of the Chinese Empire.

Yesterday, Li Weiguo visited the Daoyu submarine, and today he learned that Britain and the United States have successfully developed sonar technology.

“Is the news reliable?”

Tang Jianzhang nodded and said, "Although the British and American military is highly confidential, our agents still find ways to get this news. It is said that a month ago, Britain and the United States conducted tests in the North Atlantic Ocean, and the person responsible for testing was an ocean survey ship belonging to the American Navy."

Li Weiguo immediately frowned. The development of the sonar system by the Allies was not good news.

"Can there be detailed information? How well do their sonar system perform? Why didn't we get any information about their sonar system in advance?"

Li Weiguo asked questions repeatedly, and Tang Jianzhang was also very embarrassed. After all, he took over S.H.I.E.D. but did not get this important information, which was really a dereliction of duty.

"Your Majesty forgive me. I have investigated that Britain and the United States have included the development of sonar system in the highest secret. I am also surprised that it should not be possible to hear any news. After all, we are monitoring the British and American telecommunications systems, and we have deciphered their telegram passwords, but all the intercepted telegrams do not have a word about sonar, and no one has even talked about them on the phone."

Li Weiguo closed his eyes and pondered, then suddenly opened his eyes and asked suddenly: "Do they already know that we are monitoring their telecommunications system?"

Tang Jianzhang was stunned and couldn't believe it and said: "This should be unlikely. We have done it very secretly. So far, all our secret monitoring sites have not been exposed."

Li Weiguo sneered: "It is because it is not exposed at all, that is the biggest problem. Think about it, the UK and the United States don't know that we are monitoring them? Even if they did not doubt that the telecommunications system could be monitored, but since the UK and the United States have secretly developed the sonar system, it has not made us discover that they have been trying to nationalize the telecommunications base stations recently, and this is the problem."

Tang Jianzhang was still a little puzzled and asked back: "But if they find us surveillance them, why not sabotage? If they suddenly attack our telecommunications monitoring station, it will cause us a significant loss."

Li Weiguo snorted coldly and said, "This is Roosevelt's power! He is not attacking our intelligence personnel now, and he is probably planning a bigger conspiracy! But he never expected that we would find ourselves exposed, but we wanted to make his bamboo basket empty."

Tang Jianzhang also realized the seriousness of the problem and suddenly burst into tears: "Your Majesty, what do you mean?"

Li Weiguo thought for a while and ordered: "Quickly transfer the intelligence station personnel, suspend telecommunications monitoring of the Allies, and prevent them from following the clues. In addition, to speed up the secret construction of radio base stations, I have a premonition that a storm is coming."

...

Tang Jianzhang went to make arrangements, and Li Weiguo summoned Zhang Xiaoliu, Lin Jiyun and others to discuss matters.

Since the Allies may have successfully developed a sonar system, even if the performance is not as good as the existing sonar equipment of the Chinese Empire, it is a huge threat. The navy must be vigilant and prevent great losses.

Li Weiguo seemed to guess that the leaders of the Allied countries such as Roosevelt and William have been secretly developing sonar projects. I am afraid that they want to give the Chinese Empire a blow to hate. Over the years, the navies of various countries in the Allied countries have suffered heavy losses in equipment and personnel because they do not have sonar systems, and it is impossible not to take revenge.

At present, the officers and soldiers of the Chinese Empire's naval officers and soldiers do not know that the Allied Navy also has a sonar system. If the submarine is rashly sent, once the Allied anti-submarine warship is targeted, it will inevitably be a dead end.

Therefore, this matter is very important and concerns the security of the Chinese Empire's naval submarine force.

"Quickly inform the officers and soldiers of the submarine force around the world that they must be extra careful whether they leave the submarine to perform missions or combat readiness cruises in the future. It is best to carry out missions in submarines and destroyers, and do not leave alone to prevent them from being attacked by the Allied Navy and making dumplings."

"Don't worry, your Majesty, please handle this matter quickly!"

Lin Jiyun did not dare to be careless. Although he looked down on the submarine force, he also knew that over the years, the submarine force of the Chinese Empire had made great contributions. During peacetime, the main ship fleet basically had no combat missions, while the submarine force fought with the enemy under the sea and made outstanding contributions.

When the Imperial Chinese Navy had a sonar system, Lin Jiyun was very clear about this.

Now that the Allies also have sonar systems, the submarines of the Imperial Navy are no longer safe and pose a huge threat.

"Your Majesty, the Allies, should you inform them?"

Li Weiguo thought for a while and said with a smile: "No need for now! If you notify them, they will know that we have a sonar system! We will inevitably ask us to transfer the sonar technology, and we will give it or not. Forget it, although we are allies, we will weaken the overall strength of the entire Western world. We should not forget this general direction."

The countries use each other. The Chinese Empire not only wants to defeat the Allies, but also guard against other members of the allied countries, especially the German Empire. Because of the defeat of Britain and the United States, the German Empire will become the strongest opponent of the Chinese Empire.

Cats will never teach tigers the ability to climb trees.

Similarly, while the Chinese Empire used the German Empire to disrupt the Western world, it also had to guard against the German Empire.

This truth is very obvious, and ministers such as Zhang Xiaoliu, Lin Jiyun quickly understood.

At this time, Li Weiguo said again: "In addition, after seeing the Daoyu submarine, I am generally very satisfied. The Daoyu submarine represents the Empire's highest technical achievements in submarines, which is gratifying."

Lin Jiyun hurriedly replied: "Thank you for your praise! The Knife-class submarine does embody the most top technical achievements of the empire. A Knife-class submarine can easily kill twenty Allied submarines!"

Li Weiguo nodded, noticing the combat effectiveness of the Daoyu.

"Although the Daoyu number is powerful, have you ever thought about how long the construction cycle will be with a displacement of nearly 5,000 tons?"

Lin Jiyun was stunned and replied: "A Khayu-class submarine should take two and a half years to build. Does Your Majesty mean that the Khayu-class submarine is not optimistic about it?"

Li Weiguodao: "If it is a peaceful era, a Khayu-class submarine is enough to intimidate the submarine force of the entire Allied Navy. But have you ever thought about it? Once the war breaks out, we will build a Khayu-class submarine in two and a half years, and the Allied Group will build a submarine in half a year. Thousands of submarines are divided into waters around the world. No matter how strong our submarines are in combat power, they will be distracted. If the enemy attacks our route, it will be a big problem."

Lin Jiyun asked, “According to Your Majesty’s meaning?”

Li Weiguodao: "The Daoyu-class submarine can be built, but there are only a dozen or twenty ships. Focus on building some of them with high cost performance, which can be produced on a large scale during the battle, and can form combat effectiveness in a short time. Low cost is the first element during the war."

Low-cost and cost-effective equipment is what you need most during the war.

During World War II, the German Tiger tanks were invincible, but unfortunately the production cycle was too long and the construction cost was too high. A total of several vehicles were not produced, which could not offset the combat consumption. In contrast, although the Soviet T34 tanks were inferior to the Tiger tanks, the production cycle was short and the construction cost was low, and they could be produced on a large scale, fully reflecting the theory that war was a war of attrition, and ultimately exhausted the German tank troops on the battlefield.

With this lesson, Li Weiguo had to remind military ministers that this should never be ignored, even if the Chinese Empire is strong, it should not be like this.

Lin Jiyun quickly understood what Li Weiguo meant and would do as he did.

After the meeting, Lin Jiyun convened a senior meeting of the Navy Department and adjusted the equipment production plan of the submarine force.

It was originally planned to build 100 Khayu-class submarines in ten years, and finally reduced to 30 in three years.

As for the remaining submarine construction funds, Lin Jiyun asked the General Administration of Shipbuilding and Administration to redesign a new submarine solution with low cost, low production cycle, but higher performance than the Great White Shark class.

The burden of the new submarine plan quickly fell on Hua Hengfang, Holland and others. Hua Hengfang didn't say anything. After all, he was not the main person in charge of the submarine. However, as the main person in charge of the submarine, Holland was inevitably scolded by the Navy.

A submarine with the largest tonnage, the strongest firepower and the maximum range will be built in a while!

After a while, it was changed to a submarine with the lowest cost and minimum production cycle!

Poor and hard!

Although Holland complained, his work was meticulous.
Chapter completed!