"1,800 tons! This is the limit that can be achieved at present. With our current technology, we can build a giant ship of up to 2,000 tons, but the price/performance ratio is not cost-effective. If we say that it costs about 40,000 yuan to build a ship of 1,800 tons, 2,000 tons is It will rise straight up to about 80,000 yuan per ship, which is the construction cost. The construction time is not included in this."
"A 2,000-ton ship requires only 100 more skilled workers and 300 auxiliary workers, and the time is at least 2 months longer than that of an 1,800-ton ship." Yu Wenlin gave a rough answer.
Li Ke nodded silently. Ships are not just big. In fact, a ship with a displacement of 1,800 tons is already a Big Mac in this era. It is an absolute Big Mac that no country can currently build. A ship of this size.
"You just need to consider this. Cost-effectiveness is very important. If possible, just find a suitable tonnage and start construction on a large scale." Li Ke nodded.
"In fact, a displacement of 1,200 tons is not bad, regardless of the construction time or the cost." Yu Wenlin said.
"Then we will mainly build 1,200-ton ships." Li Ke decisively gave the order. Not to mention 1,800 tons, even 1,200 tons is enough.
Because 1,200 tons Yu Wenlin is talking about the no-load displacement. If it is a modern design, the load of a wooden ship with this no-load displacement can exceed its own weight regardless of the strength of its own hull material. It is estimated that the full load will be 3,000 tons ( The author is not a student of ship design. He only understands physical principles. Don’t be fooled. The load capacity of modern professional cargo ships can exceed their own weight, and the volume of a wooden ship with the same displacement and normal design will definitely exceed that of a steel ship.)
But now this ship is definitely not possible because its volume limits the amount of cargo it can carry. But professional warships and cargo ships are definitely different. Yu Wenlin has been exposed to modern shipbuilding knowledge. Although he is a slow learner, he already knows that the arrangement of different cabins in the ship can naturally carry different weights of cargo.
"Yes." Yu Wenlin agreed simply.
“How many ships can we build at one time right now?”
"Currently, the number of shipyards has been expanded to thirteen. Thirteen ships can be built at one time. However, the number of skilled workers is small and needs to be trained. It will take at least two to three years to reach maximum production."
"How many disciples have you trained? Can they keep up with your progress?" Li Ke looked at him and asked.
"In fact, quite a few. My two sons and two nephews can do it. They entered Yuelai Trading Company to study since they were young. They have learned mathematics and other cultural knowledge since they were young. As for ships, they started to learn from your highness last year. The knowledge they brought with them about ship design is different from people of the old school like me. They have accepted the latest affairs from the beginning, so their thinking is even more flexible than mine."
"To be honest with you, Your Highness, they have given me a lot of inspiration in the latest ship design." Yu Wenlin pointed to his head.
"Very good, in that case, you will come with us this time to Hudu (a fishing tool of the Jin Dynasty) (the place where the river meets the sea is called Du, so Shanghai in the Tang Dynasty called it Hudu, and later Hudu gradually evolved Chenghu, now referred to as Shanghai. The name Shanghai was established as Shanghai Town in the third year of Xianchun in the Southern Song Dynasty). A large shipyard and shipbuilding base was also established there, and the relevant personnel and equipment have been put in place in advance." Li Ke said.
"Well, your highness, can't you let someone else go? You don't need me to build a new dock base from scratch. The most important thing in this situation is the ability to organize and dispatch. What I'm good at is researching ship capabilities. I recommend one person. Lu Tang. He happens to be from the Lu family in Wu County, and he is currently in charge of the logistics organization here, and he is doing very well in this regard." Yu Wenlin frowned, obviously he didn't want to move.
Li Ke thought for a while, "That's okay. You can go there after the dock over there is built."
"Okay. I don't want to stop my own research on the ship. Once it is built, there will be no problems." Yu Wenlin nodded.
"By the way, I brought a few doctors and a hundred sets of "Barefoot Doctor's Manual" with me this time. I will let Lutang select suitable personnel for them to study. Places with a large number of people are prone to epidemic diseases. Although It may not be a plague, but we should pay attention to it." Li Ke said.
"Yes!" Yu Wenlin was unambiguous about this aspect. Most people were sick and shipbuilding would stop. He didn't want shipbuilding to stop.
After finishing the construction with Yu Wenlin, Li Ke quickly returned to the ship, but this time he went to the King of Qin. The name of the ship had been written on the side of the ship. Li Ke was a little helpless. To be honest, he He really didn’t know about this ship.
When Li Ke came up, all Changle and others had already boarded the ship. The entire Qinwang was 107 meters long, the deck was 14.8 meters wide at its widest, the waterline was 3.2 meters deep, the no-load displacement was 1800 tons, and the full-load displacement was 2800 tons. tons, with a fully loaded draft of 4.5 meters. The entire ship requires a crew of 80 people and can accommodate a maximum of 600 passengers.
With a full load of 600 people and a full load of supplies, the sustainable self-sustaining sailing time is about 45 days. To be able to reach this time is already considered to be an outstanding design. There are fresh water storage devices, rainwater collection devices, and even devices for distilling seawater to collect fresh water. However, distillation is an emergency method.
The most lacking thing in ancient voyages was fresh water, so most ancient ships almost moved along the coastline, and even crossing the strait could not take too long at most.
Of course, the reason why this fully-loaded ship has so few people is because this ship was designed for Li Ke. There are many cabins in it that I can't say are luxurious, but they are better than ordinary troop ships.
For example, if a troop transport ship with an empty load of 1,200 tons can only maintain a self-sustained voyage of about ten days, its maximum designed number of members can reach 1,000 people. If it is paired with a supply ship, it can accommodate 1,500 people. Of course, don't expect the conditions to be that good. The conditions of modern ships are not that good, let alone ancient times.
Besides, in ancient times, they would not go to the sea for long periods of time, but would come to the shore every once in a while to look for supplies, especially fresh water resources.
Li Ke and the others will not stay here for too long. After Li Ke and others' belongings are transferred to the King of Qin, they will leave here soon.
In the early morning of the next day, the entire fleet was replenished. With a low sound of the horn, the fleet once again left the port. This time, there were a total of 10 ships in the fleet, including the 1,800-ton Qin Wang, a 1,200-ton There are 4 other ships with a displacement of tons, and the rest are all ships with a displacement of about 800 tons.
However, these ships have been modified with modern sail layouts, not just the jib, or in other words, the jib is only the bow part of the ship.
