At the Tianjin shipyard, Liu Jin is inspecting the newly built whaling ship in the shipyard.

During this period of time, because of the various shipbuilding technologies provided by Liu Jin, coupled with Liu Jin's attention and preferential treatment to shipbuilders, especially skilled workers, of course, the most important thing is that Liu Jin used the advanced management experience of later generations, so that the people in the shipyard can learn while building ships, which greatly improves the level of skilled workers in the shipyard.

Of course, due to the relationship of time, it is not possible to build large ships like Fu Chuan for the time being, but the boats used to go out to sea can still be built.

The reason why Tianjin has been able to persist until now is naturally related to Liu Jin's emphasis on shipbuilding and fishing, the original five Dafu boats have been temporarily transformed and turned into fishing boats, which go to sea every day and can bring back more than 100,000 catties of sea fish every time.

Coupled with the fishing boats built behind this specially used for fishing, the output of marine fish caught back in Tianjin every day has exceeded one million catties.

One million catties is 500 tons, this number is naturally not worth mentioning in later generations, but in this era, it is definitely a very terrifying number.

Every day, millions of catties of sea fish harvest make the whole Tianjin is full of the taste of sea fish, everyone eats fish for three meals a day, eats fish until they vomit, so that even if there are thousands of cooking skills, people here in Tianjin have long been tired of eating this sea fish, and they miss the taste of Wowotou very much.

However, Liu Jin was not satisfied with this, and his eyes were fixed on the whale again.

According to the reports of the crew members who went to sea, the number of whales in the Bohai Sea and the Yellow Sea is extremely large, and groups of whales can often be seen.

Because of its large size, whales have almost no natural enemies in this era, and human beings have always maintained a sense of awe for the giant in this ocean, believing that this huge whale is a god in the ocean, and there can be no disrespect in the slightest.

But Liu Jin, who came from later generations, knew that whales were treasures all over their bodies, so they also messed around in the shipyard every day, and discussed with the people here in the shipyard to build special whaling ships.

"The bow of the whaling ship must be reinforced, because once the whale is injured, it will desperately flee, the whale is huge, the strength is infinite, once the structure of the ship is unstable, it is very likely that the whole ship will fall apart."

In the shipyard, a big ship has not yet been built, just a keel, the ship is more than 20 meters long, seven or eight meters wide, narrow at the top and wide at the bottom, and the Ming Dynasty traditional fortune boat shape is very different.

Next to this ship, many shipbuilders and workers gathered together, Liu Jin stood in front, and a huge blackboard was erected behind him, on which many things were written and drawn with chalk.

Liu Jin is now giving a class to the masters and workers of the shipyard, explaining the knowledge of the shipyard.

This shipbuilding is a technical work, especially if you want to build a large ship that can go to the sea, it is even more technical work, but the people who do technology in this era are the people with the least status.

The inheritance of these techniques is often passed down from father to son, and it is difficult to promote good techniques, and it is also difficult to progress and develop, because whether it is a carpenter or a blacksmith, they are often uneducated people.

In response to this situation, Liu Jin on the one hand adopted the same strategy as Xishan Coal Industry, the shipyard workers and masters are required to study in class, reading, literacy, mathematics, astronomy, etc.

Those who pass the assessment can be appreciated and raised, and those who fail the assessment will be eliminated.

Under such a system, the workers and shipbuilders here in the shipyard are naturally diligent in their studies and study hard, not to mention that now is the era of famine, even if it is not the age of famine, they will never find anything better to do than here in the shipyard, the wages are high, the treatment is good, and the status is also high, and they don't want to leave when they come, and the people outside are also squeezing their heads and wanting to come in.

Carpenter Wan listened carefully to Liu Jin's lecture, Liu Jin's lecture time is very precious, every time Liu Jin lectures, he can learn a lot of things.

"Okay, that's all for today's lesson, let's go back and study, study, and strive to improve this whaling ship as soon as possible."

Liu Jin's lecture lasted for more than an hour, and the whole person was dry-mouthed, ready to rest and rest after class.

"Liu Gongzi, is this whale the legendary Kunpeng?"

The atmosphere was more serious during the class, but after Liu Jin announced the end of class, the atmosphere between everyone was more active, and Carpenter Wan also raised his hand to ask Liu Jin.

"This whale is a whale, Kunpeng is a Kunpeng, the whale is a creature that exists in the ocean in reality, this Kunpeng is something in mythological stories, how can it be the same."

Liu Jin smiled and shook his head and said, and then out of the corner of his eye, he saw Li Dongyang coming with some people, and he also rolled his eyes and said, "I'll tell you about this whale." ”

"This whale is the largest fish in the ocean, the largest whale can be more than ten zhang long, and weigh more than 300,000 catties, which is almost equivalent to the size of our largest fortune ship now."

Hearing that Liu Jin was going to give everyone about the whale, everyone suddenly came to their senses again, and everyone liked to listen to Liu Jin talk about some things outside of the Ming Dynasty and about the things in the ocean.

On the other hand, Li Dongyang, Zhou Jing, and Zhang Mao also found Liu Jin here, and when they heard Liu Jin talking about whale-related things, they immediately became interested, signaled to the people around them not to make noise, and quietly came to the side of everyone and listened quietly.

"More than ten?"

"Weighing 300,000 catties~"

"As big as the Daifuku ship~"

When everyone heard this, they couldn't help but open their mouths wide, in Tianjin, with a large number of sea fish caught every day, these various big fish are also commonplace, and it has long been not unusual, but when they heard Liu Jin's description of this whale, everyone still couldn't help but be surprised.

Some people kept looking at the big ship in the dock, and the figure of the whale came to mind, imagining the size of the whale.

As for Li Dongyang, Zhou Jing, and Zhang Mao, who had just come over, they looked at each other, and they were all in disbelief, such a huge fish, let alone seeing it, this was the first time they had heard it.

"Of course, this is the largest whale among whales to have this size, but this kind of whale is also a few zhang long, weighing more than 100,000 catties, as for the kind of whale that weighs tens of thousands of catties, it belongs to small whales."

Looking at everyone's surprised looks, Liu Jin also smiled happily.