The 15-kilometer-long canal, there are hundreds of shipyards alone, especially the shipyards are expanded outward, and a few kilometers on both sides of the strait can be built, as long as a waterway connected with the canal is built.

Even a 15-kilometre canal, large enough for several large ships to travel side by side, can be built, and a waterway that can pass through any one ship is not a problem.

Even if in the future, the Navy relocates certain industries to increase the amount of land that the Navy can accommodate, but it is impossible to invest all of them in shipbuilding.

Now, it is guaranteed to be close to 60,000 workers, including about 5,000 technicians, located in this shipbuilding base, in the past month, a total of 300,000 materials of shipbuilding have been completed, under the premise of continuous investment and scale expansion, it is expected that after half a year, it can reach the peak, when the time comes, it may be 70 to 800,000 materials.

Converted into tons, this figure is also quite terrifying, hundreds of thousands of tons of monthly output, millions of tons of annual output, in the era of sail warships, such a tonnage is very terrible.

At most, half a year can meet the needs of the Dinghai Navy, and under the premise of digging deeper, fishing boats, transport ships, and even warships, the demand is not so sharp, Zhao Xin proposed a new ship very early.

Unlike traditional ships that only work in offshore fisheries, whaling ships are designed to face the ocean from the moment they appear.

Although whales have a record of going to the offshore water, the purpose of going to the offshore is not to survive, but to hunt, and the offshore sea is because of the rivers and lakes entering the sea, as well as the impact of ocean currents, which stimulate a large number of bottom nutrients, so the formation of fishing grounds.

Under the premise that human beings have not yet realized the role of this fishing ground, marine life has long been aware of this, they will come to hunt seasonally, and then really live in the deep sea.

The whale is one of the more obvious ones and is the largest animal in the world.

Compared with the fact that whales were protected in later generations and the whole world banned whale fishing, the number of whales in this era is still extremely large.

As the kind of creature at the top of the food chain in the ocean, whales have almost no natural predators in the sea, and the superior natural environment also makes the number of whales so large that they can no longer be accommodated.

After all, the ocean's capacity is also limited, and if there is a problem in any part of the food chain, it will naturally affect the rest of the food chain, or introduce a new balance, or, naturally, adjust.

On the premise of ensuring the number of communities, appropriately reducing some advantages, or the number at the top of the food chain, will not affect the number, but will be beneficial.

Just like aquatic grass carp spawning, he needs to lay thousands of eggs, because there are many natural enemies, and there may be few of these eggs that survive in the end.

The premise of manual intervention is to reduce the number of natural enemies and increase the number of fish eggs, so that these eggs can hatch to the maximum extent, which is a natural way to increase the population on a large scale.

Compared with ordinary fishing, the efficiency of whaling is not the highest, after all, sending a ship to whaling, how much can be caught, I don't know, even if it is caught, the number is not comparable with the fishing in the Yangtze River estuary, but the economic efficiency of whaling is the highest.

A whale, about 40 tons, at least forty or fifty cows, and the whale is full of treasures, even if it is meat, 40,000 catties of meat, according to the price of pork, is as high as 3.2 million copper coins, that is, 3,200 yuan, not to mention the high-priced skin, oil, whiskers, and sperm whale spices.

In the middle, I want to talk about whale oil, which is a natural lubricant that can be used directly on the machine without refining.

At present, the production of various machines in the Dinghai Navy is increasing, and the demand for lubricants is unlimited.

Zhao Xin led whaling, and another reason was to go to the deep sea.

The deep sea is the future, and only by going to the deep sea and bringing creatures from other continents can we promote China's real development.

With the current degree of accommodation in the Northern Song Dynasty, no matter how good it is in industry and production, unless it is a comprehensive expansion and development, the degree of land accommodation is limited.

Even if it occupies all the land that originally belonged to China, with 1.3 billion, or even 1.5 billion mu of land, according to the average yield of 4 stones per mu, the number of people that the whole China can accommodate is between 6 and 700 million.

This is a limit number, in fact, under all kinds of losses and waste, the food that is really used for subsistence may only meet two or three hundred million people.

This number, for feudal society, is a limit, an unimaginable number, in the dynasties before the Northern Song Dynasty, the population has always been between 30 million and 80 million, only in the Northern Song Dynasty, it rose to 100 million, and then ushered in the massacre.

The emergence of the Yuan Dynasty, turmoil, wars and massacres, could not recover for a long time, and it was only in the middle and late Ming Dynasty that it was restored.

Traditional grains, whether it is rice, wheat, or even the more ancient millet and millet, cannot be compared with the crops of South America, whether it is corn, sweet potatoes, or potatoes, these natural high-yielding crops, their foundation is completely different from this one.

In later generations, it was known as the calmest ocean among the four oceans, hence the name of the Pacific Ocean, to this day, it is still an insurmountable obstacle, even if Zhao Xin knew that these grains that could save China were on the other side of the ocean, but he could not make the trip.

Perhaps, on the basis of the present, strengthen the research of some sub-projects, reduce some problems, the level of sail warships, has reached and surpassed the European ships of the Age of Discovery, but there is no group of outstanding crews, how to control these ships, to the Americas at the other end.

Zhao Xin asked himself, he was not ruthless enough, and he couldn't use human life to write the route, but he cultivated it in a targeted manner, and gradually drew the nautical chart by the way, which was a good choice.

Centennial Navy, this sentence is not false at all, compared to the army can rely on personal bravery, can rely on some famous generals, for the navy, every ship, is an industrial product that is accurate to the extreme, this human can do, the largest industrial product, in the face of nature, in fact, can do limited.

Even in the 21st century, with radio, satellite navigation, and satellite phones, there are still shipwrecks, let alone this era.

In the face of the storm and the forces of nature, only the perfect cooperation can bring out the maximum effect of the ship and survive in these supernatural forces.

A ship needs dozens of people, dozens of sails, and a lot of traction, only by concentrating all the forces in one direction, you can make the sails move flexibly in the wind, and obtain stronger and more excellent speed.

This is just a theory, even in later generations, the sails managed by computers may not be able to achieve the best results, let alone in this era, experienced captains will adjust according to the situation to achieve better results.

This kind of experience can only be gained in a gradual accumulation, and even some experience, if you sail an ordinary boat, may not be able to get it in a lifetime.

Time, battle, and some activities deep into the ocean, all three are almost indispensable.

If Zhao Xin had time, he could wait, twenty or Chinese New Year's Eve years, he would always be able to train a group of outstanding crews, but Zhao Xin always had a sense of urgency, and he had to speed up.

Transportation alone, as well as small-intensity battles, can't cultivate tacit understanding and experience at all, and in the middle of the ocean, fighting against whales is the best.

In the 21st century, whales are already internationally forbidden to be hunted, not to mention that Zhao Xin does not know, even the Chinese know that there are few whales there.

But there is some news that let Zhao Xin know that at present, the place with the most whales in the world is, of course, Norway, and the other is Japan in the north.

These two countries, both of which are later generations, still maintain the whaling tradition, from time to time there is news that Norway or Japan has chosen to hunt whales again, and there are even pictures, these pictures are not some adult whales, but some small, on the shore scene, which also proves that whales are moving around them.

Norway is too far away, it is Northern Europe, if you can go to Northern Europe, you can go to the Americas a long time ago, from the north, to the Bering Strait, a little faster.

The only option, then, is Japan.

The area near the Arctic Ocean, which is northern Japan, is a traditional whale habitat where there is a lot of whale activity.

Itself, because the output of the Yangtze River fishing ground is much higher than expected, itself, Zhao Xin did not have the idea of opening the Hokkaido fishing ground so quickly, but now, this idea has been changed, and he still has to go.

If you want to do a good job, you must first sharpen your tools, Zhao Xin still knows this, he doesn't know, what the whaling ship of later generations looks like, but he has never eaten pork, and he has always seen pigs run.

Referring to the weight and strength of the whale, on the whaling ship, the ballista is a must, and it must also be a ballista with a wire rope, when the crossbow arrow is shot down on the whale, the whale can be pulled back with the power of the crossbow arrow.

Crossbow bolts made of high-grade steel, as well as steel cables with excellent toughness and strength, these are the basic configurations, and of course, there are plenty of powerplants.

The weight of whales, adult blue whales, can reach more than 70 tons at the highest, and even ordinary whales are more than 10 tons, and even if they are caught, it is not easy to transport them to the ship.

With a large trawl-like drive, coupled with enough manpower, this problem should be solved.

In the same way, in order to ensure efficiency, the ship does not need to be very large, and the whaling ships of later generations, in general, will exceed 1,000 tons, but in terms of pure efficacy, a few hundred tons is almost enough.

The navy can make a large ship of 10,000 materials, 1,000 tons, but for the sake of training, in order to ensure efficiency, the tonnage of the whaling ship finally determined is about 2,500 materials, converted into tonnage, seven or eight hundred tons, but the technical content, there are all kinds of advanced machines.

Whether it is operability or the ability to resist wind and waves, it is very strong.

The current Dinghai Navy already has extremely strong shipbuilding and design capabilities, and after the initial Western-style sailing ships, it has gradually integrated Chinese-style sailing ships and the advantages of the Dinghai Navy itself.

With the use of various screws, excellent steels, and some new materials, these boats, their performance has been greatly improved, and they are gradually approaching the peak of sailing.

The same is true for whaling ships, after Zhao Xin put forward a request and simply informed the efficacy, soon, a first draft and model were made, and then, it was tested and calculated again and again, and finally, when it was formed, it was already quite good.

At present, even the big ships of 10,000 materials can produce more than 30 ships in a month, not to mention such small ships, 2500 materials, which was already a very large sea ship in the Northern Song Dynasty before, but in the Dinghai Navy, as long as the basic structure comes out, at least 50 shipyards can be built.

Whaling, from the very beginning, is not a one-man job, so after Zhao Xin determined the basic situation of the entire ship, he issued an order, at least 20 ships.

It's not that I don't want to make more, but the reason is that whaling ships have high technical requirements, and the sailors of ordinary civilian ships must be on board for more than 3 months and have to test.

The navigation of the Dinghai Navy has only just begun, and there are even more ships than sailors, and some low-speed transport ships, most of which are novices.

Although the whaling ship is a small boat, it is facing the deep sea, and at the same time, it is still whaling, although it is only 2,500 materials, but the density of sailors is much more than that of large transport ships, and a ship needs at least about 150 people.

In this way, 20 ships, at least 3,000 people, such skilled sailors, even if they are in the Dinghai Navy, are not too many, or Zhao Xin came forward, Xue Yu's efforts, and they were transferred in place, among them, there are even 1,500 people who are not professional sailors, they are just soldiers who have been on the ship a few times.

Fortunately, in whaling, almost a third of the people who really need to control the ship, and the rest need to fight and use strength, for example, to load ballistas, for example, to arrange the iron cables, and after shooting the whale, pull the whale up through tools.

The boat was built very quickly, 20 ships, almost completed the construction within a week, how much time in the middle, after getting Zhao Xin's guidance, Xue Yu undertook this task, he took the personnel to practice a little together for a few days, after the boat was launched, he formed a fleet, all the way to the north, in his opinion, he may not be able to fight the sea, but to catch the sea fish, not to take it immediately, but he does not know, this way, is really difficult and dangerous.

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