Chapter 461

Songjiang mansion, located at the south end of the Yangtze River exit, has jurisdiction over Huating, Qingpu and Shanghai counties. There is also a Jinshan guard. Qin Huan came down the river in a warship. He was also filled with emotion.

Think of the prosperity of the magic capital in previous lives, as well as the small fishing villages, small counties, and large tracts of beach wasteland in front of you, just one sky and one underground.

Qin Huan's first stop was Shanghai county. He knew that the area of Shanghai in his previous life was very large, covering almost the whole Songjiang mansion and a part of Suzhou mansion. He didn't just refer to this small Shanghai county now.

When I came to Songjiangfu this time, I not only wanted to find a good port as a shipbuilding base, but also wanted to build it into a port city for foreign trade, so as to facilitate the establishment of municipal shipping departments and collect customs duties.

Similarly, he plans to upgrade Songjiang Prefecture to an independent state, abolish Jinshanwei under its jurisdiction, and be directly managed by the center as a transit station for goods in the whole Yangtze River Basin.

Due to the continuous scouring of the Yangtze River, the area of Songjiangfu is extending to the sea almost all the time. After several days, Qin Yucai found a place suitable for building ports and warships.

Although Qin Huan had been to Shanghai in his previous life, he could not distinguish between the southeast and northwest. He had no reference at all.

But it doesn't matter, because this port is very suitable for building a wharf. The water depth is basically about seven or eight meters. Even the largest treasure ship of this era will not run aground when it is fully loaded.

The key is that the port is more than ten miles long, and the inland extension direction is also at a glance, which is convenient for the construction of a large number of warehouses, workshops and urban buildings.

This time, Qin Huan carried hundreds of officials from the Ministry of industry and thousands of old shipbuilders, all of whom were raided in the Jiangnan area. After hearing Qin Huan's description of the huge project, they all lost their chin.

Not to mention the shipyard, the ten mile long wharf can accommodate thousands of sea ships at the same time, which is daunting. The huge warehouse group behind the wharf and countless workshops make people dare not imagine how spectacular and lively it will be once completed?

Qin Huan's idea is that in the future, goods from provinces along the Yangtze River will be sent here by flat bottomed merchant ships, and then transported to all parts of the world by sea ships, so this wharf will be divided into three.

Near the shallow water in the north, the three or four mile long section will be used as a river wharf for river ships to dock. The ten mile long section in the middle will be used as a sea port, while the five mile long port near Hangzhou Bay in the South and a large wasteland will be used as a shipbuilding base.

As for the Navy's port, Qin Huan planned to choose Ningbo. After all, the place where the warships moored could not be too close to the trade wharf. Even the shipbuilding base had to be completely isolated.

After selecting the place, Qin Huan, together with hundreds of officials of the Ministry of works and thousands of craftsmen, planned the site for more than half a month before roughly dividing the huge project.

The two wharfs and shipbuilding bases will be built at the same time and completed in ten phases. It is expected to use millions of workers and be completed within ten years.

After planning the river wharf and the sea wharf, Qin Huan didn't take care of it anymore. Instead, he handed it all over to the officials of the Ministry of work. He himself focused on the detailed construction plan of the shipbuilding base.

The trade port can be built slowly, but the shipbuilding base should be paid close attention to, and the scale of this shipbuilding base is far from that of Hanyang.

In the future, not only warships but also civilian seagoing ships will be produced. Qin Huan's preliminary plan is to excavate five large dry docks that can accommodate large seagoing ships of about 2000 ~ 3000 tons.

Then there are 10 medium-sized dry docks, which should be able to accommodate sea ships of about 1000 tons to 2000 tons, 30 small dry docks of about 500 ~ 1000 tons, and finally 100 open-air slipways.

The service life of wooden warships is very short, but if they can enter the dry dock for maintenance once a year, remove the attachments at the bottom of the ship and repaint, they can greatly prolong the service life. It is not impossible to use them for ten or twenty years.

Of course, the construction of the dry dock was not so easy. Qin Huan did not dare to imagine that the gate could be completely sealed without cement. The only trouble was the drainage.

But Qin Huan believed that his steam engine could be developed in a few years, and then the problem could be solved.

Of course, if we wait for the dry dock to be built before building the warship, it is estimated that we will have to wait until the monkey years and months, so we have to build the warship on the slipway for a long time. In short, he is not in a hurry to build the dry dock, but he must build it. It will play a great role in the future.

One of the reasons why Zheng He died without illness when he went to the West was that the cost was too high. The treasure ship could not be maintained and was scrapped in a few years.

The shipbuilding method also adopts modular assembly. First, the warship model is designed, and then decomposed into tens of thousands of parts, which are uniformly processed by the carpentry workshop, and finally spliced and assembled.

The advantage of this is that once the standard system is formed, it not only has fast construction speed, but also greatly saves cost. It can also select appropriate wood according to different parts of the hull.

In order to ensure accuracy, Qin Huan not only made a unified ruler with the carpenters, but also invented a caliper. No, it should be said to be copied.

Because of this thing, Wang Mang in the Western Han Dynasty seems to have got it out.

For the time being, the construction of carpentry houses, supporting workshops, slipways and the excavation of docks are very simple, requiring only a lot of manpower, but the design of warships and the decomposition of components are an extremely complex and systematic project.

It is absolutely impossible to be illiterate. For the time being, we can only draw some literate people to join, but this is not a long-term plan, so we have to set up a special ship design college and a naval college.

The treasure ship has been lost. Instead of trying to copy it, it's better to redesign it in combination with Chinese and Western shipbuilding concepts.

For this reason, Qin Huan had Guo Biao go to Macao to dig some Portuguese who knew how to build ships. Although there were not many, there were only a few, but it was enough.

Seeing dozens of old craftsmen and several red haired ghosts quarreling every day, Qin Huan was as big as a fight.

"Well, don't quarrel. I'll set a standard. You design according to this standard. First, a total of four warships should be built, two small and two large. The maximum speed of small warships should not be less than 10 knots, and the displacement should be 200-500 tons. The maximum speed of large warships should not be less than five knots, and the displacement should be about 1000-2000 tons."

"Oh, my God!"

"Your Majesty, with all due respect, your standard is really desperate. A wooden ship with a displacement of 1000 tons can't be built at all. As far as I know, the largest wooden ship in the Netherlands now has a displacement of about 300 tons."

Several red haired ghosts first screamed, and then shook their heads like a wave drum in broken Chinese. They all felt that his Majesty was too whimsical.

Dozens of old carpenters can now distinguish the concept of one ton. After listening to the words of several red haired ghosts, they were immediately unhappy and began to refute.

"Hum, the Netherlands in your mouth is just a country of bullets. It can't build a large sea ship of more than 100000 loads. What's strange?"

"My ancestor was a craftsman in Longjiang shipyard. The largest treasure ship built by Longjiang shipyard was about 43 feet long and 5 feet wide. The main mast was 18 feet long. You can calculate the displacement by yourself."

"No way, no way. I will never believe it unless you build that treasure ship now and let me measure it myself."

Several red haired ghosts also blushed and retorted that they thought these Chinese were crazy. They didn't believe that there could be such a big sea ship in the world.

Are you kidding? 43 feet long and 7 feet wide, that is, the length of the ship body has reached more than 130 meters, the width is 22 meters, and the main mast is 50 meters high. If there is such a ship, the displacement is at least about 1500 to 2000 tons. As for the full load displacement, it is impossible to estimate.