War can do many things that are impossible in peacetime.

Had it not been for the outbreak of World War II, the United States would not have been able to build the Manhattan Project and build the atomic bomb, which would have been unthinkable in peacetime. If it was in peacetime, if Zhao Pu formed a navy, there would definitely be a lot of opposition, and the resistance was too great, and in the end, it would not be over, but in the war years, obeying the war, everything was no longer a problem.

Zhao Pu persuaded Li Gang and handed over the plan to form a navy to him.

It's just that Zhao Pu is also blind about how to set it up, so he can only roughly put forward the extreme precautions, and then let Li Gang "act cheaply".

And Li Gang lived up to expectations, and in just half a year, the prototype of the navy was formed.

…………

At this moment, Zhao Pu is looking at the secret fold, this is Li Gang's book, which tells in detail about the progress of the development of the navy, as well as the establishment of the navy.

In terms of naval establishment, there are mainly several types of warships, such as main ships, grain ships, water ships, horse ships, boarding ships, and warships.

The main ship is equivalent to the Song Dynasty version of the aircraft carrier, the Ming Dynasty version of the treasure ship, and the flagship and capital ship of later generations. The collective is huge, and it has to carry food, horses, marines, etc., at least more than 5,000 materials, because of its huge size and slow movement, once it encounters a siege by a small boat, it will be dead. Thus the main ship focuses on defense and attack. The outer layer should be covered with iron sheet to improve the ability to resist blows; At the same time, artillery and other weapons should be installed.

Horse boats, which are quick water battles, are responsible for landing attacks in shallow areas;

grain ships, mainly used to transport the food and logistics supplies needed by the fleet;

Boats, which are troop carriers, are mainly responsible for transporting troops to the coast;

Warships are special ships that serve as escorts to annihilate enemy fleets;

Water vessels, which are specially used to store and transport fresh water.

Looking at the description on the recital, the navy has a preliminary scale. It's just that the construction of the main ship is more time-consuming and labor-intensive, and it has not yet been built properly. This is not mainly a technical problem, but the first time to build, the craftsmen are a little unskilled, and some problems have not been considered. But it only took three months to build it completely.

"Li Gang, sure enough, it didn't disappoint me!" Zhao Pu looked at the recital, and was very satisfied.

Li Gang was a man of letters, and his strengths were in civil affairs, not in military affairs. let him go to the battlefield, destined to be a talent like Zhao Kuo; Neither will he be able to develop a national strategy; Let him be the prime minister, but he is also confused. His strength lies in logistics, in creating a stable rear.

This time, Li Gang was demoted.

However, Zhao Pu would not abandon him, but put him in Quanzhou and Fujian, and let him prepare for the navy.

Fujian has 3,324 kilometers of mainland coastline and 1,404 coastal islands, across the sea from Taiwan, and the ancient Yue people living in Fujian have long been galloping across the vast ocean. Fujian's hilly terrain and the mountains surrounding the provincial borders did not block the Fujian's socio-economic exchanges with other provinces and overseas, and the sea routes made it easy for Fujian to connect with the outside world, and even traveled farther than other provinces. In addition, Fujian is mountainous, rich in products, rich in wood and iron, tung oil, oyster ash, rattan, palm, hemp, lacquer and other materials required for shipbuilding, the people take local materials, ship everywhere, and the shipbuilding industry along the rivers and coastal areas is very prosperous, these unique conditions make Fujian sailing ships become the main type of ancient Chinese sea ships.

During the Three Kingdoms period, Wu was very active in its seafaring activities, sending envoys to Nanyang, landing in Taiwan, and uniting with Goryeo. In 269 A.D., Wu set up a captain in Houguan County, which belonged to Jian'an County, which was the beginning of the recorded Fujian government-run shipyards. Wu also established a larger-scale shipbuilding base in the coastal area from the mouth of the Minjiang River to the Oujiang River in Zhejiang, called Wenma Chuantun, and the ships built were called Wenma Wuhui, and built a large number of seagoing ships during the decades, providing a sufficient material basis for Fujian's navigation activities.

The Western Jin Dynasty destroyed Wu, placed Jin'an County, set up Wenma County, and preserved the shipbuilders and soldiers left by Wu. At the end of the Eastern Jin Dynasty, Zhejiang Sun En and Lu Xun led the peasants to rise up, and built the "Eight Groove Ships" on the southeast coast, and went south to Guangzhou from the coastal road of Jiangsu, and then went down the Yangtze River. After the defeat, Lu Xun and the rest of the department are still varied, often live on the ship, the bow of the boat is pointed and the tail is high, the middle is flat, and the waves are sent, called "the bird boat", until the eighth year of Tang Wude (625), Wang Yitong, the governor of Quanzhou, sent an envoy to appease.

Fuzhou and Quanzhou in the Tang Dynasty were the main shipbuilding bases in the south, and there was a marked improvement in shipbuilding technology, and the Old Tang Book records that the maximum load of merchant ships between the coastal areas of Fujian and Guangdong at that time could reach 1,000 stones, or 50 to 60 tons. In the middle and late Tang Dynasty, due to the gradual loss of control over the local area by centralized power, Fujian relied on the benefits of the boat, or bought grain and rice from Zhejiang, or shipped overseas strange goods to Deng and Lai.

And Zhao Pu roughly estimated that the shipbuilding technology of the Song Dynasty at this time was much stronger than that of Zheng He in the Ming Dynasty when he went to the West.

In the Zheng He era, it was just the fourth year of Yongli, and the Ming Dynasty at that time was only forty years old, and its economic strength was far inferior to that of the Song Dynasty in this era; In terms of shipbuilding technology, after the invasion of the Mongols, a large number of advanced technologies were lost, and in the Ming Dynasty, although it recovered, it was far from reaching its peak.

In the Song Dynasty, China's social and economic development at a high speed, overseas trade also entered a peak, Fujian and Guangzhou became the center of ship construction, Fuzhou, Xinghua, Quanzhou, Zhangzhou with official shipyards, Song Yuanyou two years (1087) in Quanzhou set up the city of Bo Division, from the Southern Song Dynasty, far from the war in Quanzhou gradually surpassed Mingzhou and Guangzhou, became China's largest port. There are more records about the characteristics of Fujian sailing ships, "the wood nature of the south is suitable for water, so the sea boat is Fujian as the top, the Guangdong and West ships are second, and the Wenmingzhou ships are second." ”

Generally speaking, there is 1 material = 1 stone = 92. 5 pounds

At this time, it is already possible to make a large ship with 5,000 materials, or even tens of thousands of materials.

It's just that the bigger the boat, the better, the bigger the ship, the power system is also a problem. At this time, the power at sea is mainly hard sails and rotating oars. The power plant was extremely primitive, the hull was too large, which led to inconvenient movement. At this time, the most suitable is a large ship of 2,000 materials. Unless the steam engine is invented, the big ship of 5,000 materials and tens of thousands of materials will be beautiful and impractical.

It can be said that the shipbuilding technology of the Song Dynasty was the peak of ancient China.

The Ming Dynasty was able to build treasure ships, and so could the Song Dynasty. The Ming Dynasty was able to form a fleet as large as Zheng He, and Zhao Pu was also confident that he could form a fleet of the same number or even surpassing.

All this is the foundation for building a navy.

It's just that in Quanzhou and other places, although there are government-run shipyards, they are more of a service for civilian shipping, or a supplement to the navy. The importance attached to shipyards is far from reaching strategic heights. In addition, these shipyards, which are too scattered and loosely distributed, are in various war situations.

The purpose of relegating Li Gang to Quanzhou was to combine these shipyards to form a "shipbuilding trust", which could produce large-scale, high-quality sea ships to support the Jin army's Liaodong campaign, and to form a combined fleet.

And Li Gang did a good job and basically met the requirements.

"In just three months, the opportunity to attack is waiting for me!"

Zhao Pu felt a little relieved in his heart.

In less than a year, a powerful navy was formed, which would seem incredible to later generations.

But it worked.

Zhao Pu sighed a little that the shipbuilding technology of the Song Dynasty was too powerful.