"Ships can be roughly divided into combat ships and support ships, and combat ships can be divided into capital ships and auxiliary ships, capital ships are mainly composed of battleships, battle cruisers, heavy cruisers, light cruisers and destroyers, and auxiliary ships are made up of ......" Jiang Tian calibrated Song Yi's drawings while talking about the detailed division of the navy, and the trick of single-mindedness and dual-purpose made it incisive.

As for all of you here, you have long been accustomed to his way of working as a capable person, and this long list of terms alone has made everyone speechless. People all over the world know that he Jiang Tian is a landlubber, and the northerner who has never done a day in the navy has become the dean of the Royal Naval Research Institute, and those who don't know it think that this is the emperor taking care of the teacher's feelings to find him a little more idle, and those who know also think that this is because the emperor values Jiang Tian's rich scientific knowledge and plans to let him build some advanced weapons and ships. It is only now that I understand Emperor Zhang's good intentions, although his junior brother has never been in the navy, and he has not even gone to sea by boat a few times, but when it comes to the study of the navy, the entire new army has not been able to compare with him.

Jiang Tian had long been accustomed to the stunned appearance of others, so he ignored the demented expressions of these people and continued: "In the future, the combat mode of the navy will mainly focus on the basis of the battle line bombardment, so the battleship and the battle cruiser are the absolute main force to defeat the enemy, and the heavy cruiser is the protagonist in the low-intensity naval battle, as for the light cruiser and destroyer, because of their small tonnage, thin armor, and weak artillery, they can only play an auxiliary role, but because they are light and healthy, They have important speed and firepower advantages in dealing with large-scale pirates, armed merchant ships, and weak navies, coupled with low production costs and short cycles, they can accumulate a huge number in a short period of time, and they will also become one of the main ships of the Chinese Royal Navy in the near future. As for the low-intensity tasks of maintaining the order of the country's maritime affairs, protecting fishing in the oceans, and arresting smuggling and piracy, I plan to design a large frigate with a certain amount of ocean-going capabilities to be used to assemble the second-tier navy that will be formed soon, the Maritime Guard! ”

As soon as this new term appeared, everyone imperceptibly exchanged glances with each other, this term appeared for the first time, and this new unit was not mentioned in the recital at the original court meeting, it seems that either they hadn't thought about it at the beginning, or they didn't plan to let people know. Jiang Tian didn't want to keep it secret, but he just remembered by chance that for the Chinese Navy at this stage, its main enemy is not the main fleet of European countries, nor the chaotic navy of the Zheng family, but those wandering pirates and European thieves and merchants will become the target of war in the near future, at most, the East India Company has two or three medium gunboats, or the occasional Spanish treasure ship passing by. To deal with this kind of enemy, which is not strong in firepower and is not fast, but is not scattered over the ocean, it is best to separate the duties of the navy from the escort tasks in peacetime, and the design and construction of large ocean-going frigates and large destroyers is a top priority. At the same time, these two ships can also be used to train the future talents of the navy. More importantly, with the existing shipbuilding technology, these two types of warships will not put too much production pressure on shipyards.

"Of course, in order to deal with a possible strong enemy, when we do not have large combat ships, some weapons that rely on technology to suppress the opponent are quite important. That's why I developed this rocket...... "Jiang Tian put down the drawings in his hand, Song Yi and Xinyue's skills in understanding the map are already perfect, Jiang Tian saw that there was nothing that could be modified, so he let them do it, and Song Yi's participation in this work also has an advantage, that is, in the next development work, he can better understand the intention of the design.

The prince classmate who was supposed to help didn't actually help much, he found that he was still excellent in character and learning, and when he saw those complicated lines on the paper, in addition to being able to see some geometric figures, he couldn't figure out the meaning of these things, so he couldn't help anything, so he had to sit aside and listen to Jiang Tian classify the navy, and Tian Xuhai and Xi Yun, who didn't know when he got in, were also listening with him. She will come in to listen to this unexpected by some people, no matter how you look at this little girl, she will not be an alternative talented girl like Xinyue, but only Xinyue understands the careful thoughts in the girl's heart. As for Wu Yuan and Liu Baokai, they didn't take such a little girl seriously, he just listened to it if he wanted to, and it wasn't a confidential thing anyway.

"Sir, why is it that the main enemy of the navy is not the Zheng traitors, but the merchants of Xiyi? Besides, the dignified military still has to escort the merchant ships? Zhang Huan listened to the old mistake again, whenever he heard something he didn't understand, he always liked to ask why, of course, for a prince to have this kind of curiosity is a good thing, but for Jiang Tian who doesn't know his identity, this kind of curiosity is definitely a depressing existence, especially now is not the kind of teacher-student relationship in the classroom, and he doesn't need to explain the reason for what he said.

Jiang Tian originally wanted to pretend that he didn't hear and continue to talk about himself, but he dared to do so, but Wu Yuan definitely didn't dare to put the prince aside, so he put down his pen and asked the same question: "The student also has these questions, I wonder if Mr. can give advice?" ”

Of course, Liu Baokai, as a knowledge, had to speak for the prince, and the task given to him by his father also included this content, so he also clamoured: "Sir, just tell me about it, why is there so many ways in this navy besides killing?" ”

Jiang Tian looked at this posture, and also understood that several of them made it clear that the drunkards did not mean to drink, these people are not related to the navy, but they are so concerned about this reform, the only possibility is that someone asked them to explore the mysteries of this, so no matter what, if they don't explain it to them today, they will be able to instruct these guys to work. So I had to put down my work and look at them first: "Since you still don't understand what the navy is, then I'll tell you about it." ”

There is no controversy about the role of the navy in later generations, and unless a landlocked country does not have a navy at all, any coastal country knows what it means to have a capable and deterrent navy. Since Mahan's "Theory of Sea Power", the various functions of the navy have been constantly improved, until the United States later brought it to the extreme, and it is said that once there is any emergency, the president of the United States always asks where his aircraft carrier is first. In this time and space, for China, the small peasant economy is almost unshakable, and the British did not rely on ** to pry open this trade barrier. Therefore, for China, maintaining a large standing navy is not worth the cost. However, in Jiang Tian's explanation, China will gradually break the original economic system, and can obtain a large number of production materials overseas, such as Indian cotton, Japanese copper, Spanish silver coins, and Nanyang tin, all kinds of timber and grain, the large-scale influx of these things is unstoppable, after obtaining cheap raw materials, China's industry will inevitably be able to produce a large number of cheap industrial products, and after the productivity exceeds the local consumption capacity, it will inevitably look for other dumping markets. Therefore, it is inevitable that the product will be resold back to Europe, and finally complete the economic cycle, or exploitation.

So will European countries be so willing to use the stolen gold, silver, and various raw materials to China to exploit themselves? The answer is obviously no, these countries do not dare to threaten China by force now, because they are not capable of conquering China on land, and as soon as any European expeditionary force sets foot on Chinese soil, it means that their good days are over. So now people are shipping goods, but as long as you show signs of decline, then the next time you will definitely bring the army. If you can't threaten by force, then you will definitely use trade means to achieve the purpose of checks and balances, the easiest way is to raise the terminal price, anyway, these goods are grabbed by them, and they are also shipped by others, as long as you discuss the price increase together, what can you do? Fine silk and porcelain are not necessities, but can you live without those high-grade metal ores? Can you leave cheap grain now? Or can you find a copper mine that can be mined for hundreds of years without needing to import it from Japan? Obviously, China's dependence on the sea will be very lethal in the future, and in order to protect its core interests, it is a logical choice to build an ocean-going fleet that can crisscross the world. When you have the ability to threaten the survival of others with the navy, that is when you dominate the world.

"In the final analysis, any army, whether on land or at sea, their ultimate mission is to maintain the interests of the country, and when the interests of their own country conflict with the interests of other countries, the army is the guarantee of their own interests, since it is inevitable to go to the sea, then how to maintain their own maritime interests is a problem that must be faced, and the ultimate solution to this problem is to build a strong navy, let others look at your fleet to worry about this problem." Jiang Tian's explanation cannot be regarded as simple to understand, but it is definitely easy to understand, and at the same time, he also cites a lot of lessons from the Ming Dynasty, assuming that the middle and late Ming Dynasty can obtain supplies from the sea, so that the country can have the ability to transfer a large amount of grain for disaster relief, or can obtain stable financial revenue through customs duties to support the crusade against the north, then will tens of thousands of Manchu and Mongolian cavalry still cause the disaster of the country? When the Northern Song Dynasty perished, why the Southern Song Dynasty was able to survive was not because there was an invincible naval army that choked the Yangtze River, so that the Mongols could only play with Xiangyang City and take a great khan to have a chance to go south. If there was such a naval army back then, there would be no need to repeatedly compete with the Tartars for Nanjing today. These examples speak volumes about the unparalleled importance of the Navy at any time.

Now Zhang Huan understands it completely, no wonder his father always wants to go overseas to grab some islands and come back. At the same time, several other people can also be regarded as seeing that opening the sea and trade will inevitably become the basic national policy of this dynasty, and those people behind Tian Xuhai want to stop this trend, I am afraid that they will be bitten by the new interest class without the emperor's action, unless they ...... He looked at the ** around him, unless he could become a member of the new class like the Liu family, he could not only get rich returns, but also get to know these future darlings of officialdom. But he saw it but it was useless, he couldn't make the right decision instead of those old things, and it was even difficult to convince his father.

Just when Jiang Tian was still talking to them, a little guy came in to report that the students sent by North Korea had arrived at the gate of the mansion, and they were waiting for a reply at the moment with a teacher post. Jiang Tian looked at the sun and saw that it was not yet noon, and he still had a lot of things to do here, and there were still two classes in the afternoon that he needed to go into battle in person, and it was estimated that he would not have time to meet them one by one, so he decided to meet in this studio collectively. When this group of thirteen international students entered this room, both sides were a little surprised. First of all, the North Koreans thought that they were going to worship the teacher on a more formal occasion, and for these people who called themselves Little China, the so-called Shangbang etiquette was a very important thing, and looking at the messy pile of books and papers in this room, which did not look like a desk workbench at all, and there was a woman sitting next to the students, which made them a little uncomfortable. As for Jiang Tian's side, they were mainly surprised by the other party's dress and conversation, the other party did not wear any national costumes, but Yishui's standard Hanfu, if they didn't know their identities, I'm afraid no one would be able to see that these were Koreans.

No matter what the first impression of the two sides is, the formalities that should be taken are still to be left, so a person from the North Korean side walked out and hugged his fists and bowed to the end: "Student Li Zaixing led my North Korean students to meet Mr. ”

These thirteen people saluted Jiang Tian together, and it could be seen at a glance that the leader Li Zaixing was estimated to be the one with the highest status in this group, although there were many people with the surname Li in North Korea, but after all, the king of Korea at this time was also surnamed Li, and the students who came this time were said to be the heirs of the ministers, so maybe this person was still related to the royal family of the Li Dynasty.

"No need to be polite." Jiang Tian returned the favor with a handful, and now he is more and more accustomed to these feudal dross: "Let me introduce you to these seniors......"

If when they first entered the house, these North Koreans were only surprised by Jiang Tian's informality here, but after listening to his introduction, they realized that what was really shocking was the identity of these seniors. To say that Jiang Tian's deeds have spread to North Korea at this time, especially the lease of Jeju Island, in the small court of North Korea, this contemptuous saint and made a fortune by relying on strange skills and tricks is very hateful. However, the Koreans, who have been deeply rooted in the marrow of affairs for many years, know very well that no matter how much they look down on each other, they cannot show a trace of disrespect, and this time the royal family and the ministers sent their own children and nephews to study, which also has the meaning of currying favor and cultivating a pro-dynasty faction in the Celestial Empire. But even so, they are only the second sons who cannot inherit the family business, and the promising eldest sons of the family and the good seedlings who are excellent in reading will not come here to learn any Rausch science. But look at the identities of the seniors here, the son of a prince, the son of an earl, the eldest son and the eldest grandson of the two dynasties, although Xinyue's senior sister is not glorious, but the dignified and beautiful demeanor makes some young boys' eyes a little straight. In fact, these are not the most important, as a representative of the royal family, Li Zaixing naturally found something familiar from the inconspicuous Zhang Huan, and looking at Wu Yuan's unnatural sitting posture, he guessed that this kid's identity was probably still above everyone.

After introducing the identities of these people, Jiang Tian didn't plan to waste any more time, so he turned his head to look at Tian Xuhai: "Huaigu, you can take some juniors to familiarize yourself with the classroom, and at the same time check your homework to see which grade is more appropriate." ”

Tian Xuhai nodded yes, and then took these people out. After they walked away, Zhang Huan asked Jiang Tian puzzled: "Sir, the writing tool I wrote just now is confidential, but I don't know why I didn't cover it up?" ”

Jiang Tian casually picked up another drawing and checked it, and said while looking at it: "Since the day when there was a country on that peninsula, it has been close to the Central Plains, but it was very close to us in the former Ming Dynasty, and after we were rescued from the hands of the Japanese in Wanli Year, they regarded us as ancestors with all their hearts." However, these people have never learned the essence of the Central Plains culture, and they dare to call themselves Little China after copying the rules of scientific expeditions, but they don't know that this is just a follow-up to Dongshi. Now the shape shì mutation eight shares of articles in the Central Plains can't be eaten, and I found that we are not as easy to fool as the Ming Dynasty, so I thought about sending some protons to show loyalty, since it is a proton, it will definitely not be the level of the heir, it is very likely that it is just sent some lowly descendants. But even so, these people must be familiar with the subset of scriptures and histories, at least not to embarrass the small court of North Korea. But you also know that this kind of person doesn't understand science at all, not to mention that they can't understand these blueprints, and even if they do, they can't make real things. As for the navy, they can't play even more, unless Yi Sunsin comes back to life, otherwise I don't believe that these people will understand the meaning of the navy. So if you want to show them and understand these things, you have to get at least two years of literacy training with me. ”

Zhang Huan heard Jiang Tian's words full of disdain for the students of these subject countries, and not only that, but also had a feeling that he even looked down on this country. He didn't know how North Korea had offended his teacher, but he didn't think there was anything wrong with it. His father often said that in the Ming Dynasty, these envoys of the state simply regarded the court as fools. Dare to come to the Hajj to the Son of Heaven with some souvenirs, and the Ming Court is still dying to save face and suffer crimes, and every time he does this kind of loss-making business. Therefore, in his young mind, he didn't have much consciousness of the Heavenly Dynasty, just to maintain the dignity he deserved, and it was not easy to care.