In the eyes of others, the sea is a place of unpredictability, a barren place full of dangers.

That's right, compared to calmer rivers, the sea is unpredictable and full of dangers, and sometimes it's a sunny day, but in the blink of an eye, it can be stormy.

Even if there is no wind on a day, there is no wind and three feet of waves, it is the status quo of the sea, and the sea is rough, which is more demanding for tools.

On the river where canoees can be driven, the ocean almost eliminates the existence of canoes, even in the relatively calm sea, it is very dangerous to drive a canoe rashly, unless it is in a place where the island is densely populated, relatively calm, and the distance between each other is not far.

For those fishermen on the seaside, it is also the most miserable, on the seaside, those fishermen who rely on the sea to fish for a living, almost every family, there are members who are shipwrecked at sea.

The reason is simple, near the shore, because of the long-term fishing, there are few fish, and in order to catch more fish, you must go deep into the ocean.

In the ocean, it is also divided into levels, generally close to the shore of the point, because it is closer to the land, there is a certain stability, the power of the ocean, will be reduced by the land, and the waves will not be very large, but the deeper you go into the sea, the process from light blue to deep blue, the ocean is getting bigger and bigger.

Entering the depths of the ocean, without the shelter of islands and land, the unobstructed view of the ocean cannot stop the strong winds at all, and some tropical storms cannot stop it, not only will not weaken, but will gradually intensify.

Fishermen along the coast, how much money they have, can spend effort, early out of the boat, is already very good, most of them are a big log, or a few temporary processing.

These ships are not to say that they conquer the sea, even if they are in the ocean, if they stay a little longer, through the immersion, soaking and joining of the sea, there will be problems, which is also their tragic fate.

These fishermen aside, even a huge sea ship will sink in the face of irresistible winds and waves or run aground, which is very dangerous for no radar, no nautical charts, and no communication equipment.

It is the unpredictability and danger that fills the sea with death and danger, and without enough equipment, it is simply impossible to cross the ocean.

Zhao Xin's era is an era of a global village, maybe in the depths of the ocean, or in the depths of the earth's crust, there are still some mysterious existences, but the pure sea, there is not much mystery anymore.

In the era of great geographical discoveries, it took countless lives, and even a hundred years of unremitting sacrifices, so that the sea route that could be discovered, here in Zhao Xin, there is a general direction, and this point, for exploration, is almost done with cheats.

Because of this control, in Zhao Xin's eyes, the sea is a treasure trove, and the output of the sea itself alone is enough to feed a large number of people without any land.

On land, it takes a cow to weigh 1,000 catties, but a blue whale weighs, the largest is more than 33 meters and weighs 180 tons.

Even if it is an ordinary blue whale of thirty or forty tons, one is equivalent to sixty or seventy cows, how much food can be brought by such fishing.

This is also the reason why after the information age of the earth, after the whale has become an endangered species, there are also countries that brazenly hunt whales, in addition to the value of whale meat itself, there are many other things with economic value.

Whaling is a good thing, in this era, whales are far from extinct, and even some of them are overflowing.

Fishing, including whaling, is only a small part of the profits of the sea, and the great geographical discoveries have not yet appeared, and there are countless vast and sparsely populated lands overseas waiting to be conquered.

China has a splendid civilization, hard-working Chinese, with hard work and hard work, to create the current huge science and technology and huge population, but because of this, China fell into the cycle, when the peaceful years of accumulation, more and more population and land annexation under the combined effect, finally when the food can not feed so many people, the kingdom is the only choice.

Only by going to the ocean, with more land and resources, can we feed more people, marine aquaculture, all kinds of overseas materials, these are the foundation of everything.

From the reason why Zhao Xin chose to set the navy instead of other places, only the sea has infinite possibilities, and only the sea can achieve his goal in secrecy.

If the navy is developed to a certain extent, it is almost inevitable that it will seek expansion, and the first choice is Taiwan.

Taiwan, China's largest island, at the same time as taking the Dinghai Navy, Zhao Xin sent a part of the elite forces to Taiwan.

In the period of the Three Kingdoms, there is a record of boarding Yizhou in Soochow, not to mention that in the current Northern Song Dynasty, the ocean route can even go to the Arabian Peninsula, which is a huge sea area of more than 10,000 miles, from the coast of Fujian to Taiwan, only more than 100 kilometers, and even some swimming enthusiasts in later generations, can even swim across, for the sea ship with ocean capability, crossing should not be a problem.

The real problem is that large-scale immigration and development, industrialized society, for materials, commodities, and even food, the demand is very terrible, there is no reliable fleet with a strong ocean-going navigation ability, rashly develop Taiwan, either, because of material and other problems, the success is lost, or, the control is weak, so that this powerful force, out of control.

No matter which aspect there is a problem, it will affect the entire plan of the Dinghai Navy, and Zhao Xin needs to develop steadily even if he waits.

However, the early detection was still very smooth, and the dispatch was all the elite forces of the Ding Navy, which were equipped with the elite weapons of the Ding Navy, armed from beginning to end to the tooth troops, and there was only one battalion or so, and it took more than a month to complete the delivery.

This is already the limit, although it is said that even hundreds of tons, or even more things, can be transported thousands of miles away, but Taiwan, if the navy wants, it can send thousands of people to the island.

However, according to the information we have learned before, and even from the results of the intermediate investigation, most of the islands are indigenous people, and these natives do not live in the plains by the sea, but in the mountains.

The topography of Taiwan is very unique, with a large mountain range in the center, the highest of which is even close to 4,000 meters, which is rarely seen on ordinary islands.

Taiwan is located in the place, every year will suffer from typhoon weather, even in the 21st century, is also bad weather, for these natives, their technical level is not high, simply can not withstand the typhoon, when the huge casualties, they choose a safer place, away from the sea by the mountains, and therefore, the formation of the later mountain people.

500 men is a reasonable number, and there is no need to suffer a larger siege, and being outnumbered, and not bringing a lot of pressure on the supply because of too many men.

Even if there are only 500 people, the distance is quite close, in the Dinghai Navy, there will be a fleet of 5 ships of 2,000 materials to supply them, and they have also initially gained a foothold in Taiwan and built a settlement.

In fact, if Zhao Xin has time to go there, he can give a few fortresses to where to embody, which is the fortress with the most powerful protection ability, which can greatly increase the protection intensity.

Before the ocean-going ship has a certain guarantee, Zhao Xin basically will not choose to take the sea ship, the large fortune ship of the Great Song Dynasty, although the performance is outstanding, occupies this era, the vast majority of the sea ship market, but the danger is too great, the flat-bottomed sea boat, once deep into the ocean, is easy to be attacked by the wind and overturned, which is also the fundamental reason why Zheng He went to Africa as early as the Ming Dynasty, but did not find the nearby Oceania.

Along the coastline, slowly moving forward, passing through some large countries, obtaining trade and supplies, Chinese sailing ships can move forward slowly, thousands of miles, just a relay process, a matter of time.

However, there are no more advanced sea vessels, and in the face of the blue ocean and the increasingly huge wind and waves, the flat sea ships simply do not have the ability to cross the ocean even about 200 nautical miles.

Relatively speaking, it is safer to follow the coastline to Southeast Asia, but it is closer to the Japanese shipping lane, which is more dangerous, because of the deep ocean.

From Southeast Asia to Oceania, although the nearest place was only a few hundred nautical miles, when Zheng He went to the West, he followed Southeast Asia all the way to the east, where it was extremely barren, and there were not many people who existed, so he could not get supplies, and he could not continue to sail.

In this sense, the Ming Dynasty did not discover Oceania, which is also an inevitable phenomenon, the Ming Dynasty sea ships, without the ability to go deep into the blue water, only a few hundred nautical miles of deep sea, may be a moat-like existence.

Zhao Xin is a researcher of history, and he once complained and discussed with some people on the Internet, but before the shipbuilding and navigation industries developed by leaps and bounds, this possibility almost did not exist.

This is also the sorrow of China, in many fields, China has developed to a very high level early, and many angry young people in later generations feel on the Internet that as long as they move forward, they can go further, but they don't.

China's unique conditions make the entire continent vast enough, and the average dynasty is not willing to go to the sea, without this subjective idea, the development of ships, of course, can not go further.

The emergence of Zhao Xin, in fact, made the Northern Song Dynasty cross this step, more suitable for ocean navigation keel, directly make the bottom of the ship more suitable for sea navigation, but to achieve the purpose, it also needs to be verified, as long as these systems meet the requirements of the design and are more suitable for the ocean, then the use is certain.

What Zhao Xin knows is only some information he saw on the Internet, and according to some pictures, his knowledge of mechanics, and the design he made, he must rely on the shipwright to change it under the premise of not knowing how to build a ship.

Boatsmiths, more familiar with Chinese sailboats, can only modify a little, partly, only a few simple subsystems, and a small part for different experimental purposes.

Zhao Xin's idea, located in Dingjun, the person who presided over this shipbuilding experiment, understood very well that he sent the basic letter through an expedited one for the first time, and two days later, something more detailed was sent to Zhao Xin through another channel.

After reading it in a hurry, Zhao Xin can be regarded as understanding the current progress, which is not bad, most of the projects are progressing smoothly, and several projects have been completed because of the particularly smooth relationship.

Among the more than 20 experimental ships, the first to be completed, a total of 4 projects, the start time is not consistent, but the completion time is basically the same, completed in a few days.

These experimental ships, the sub-projects they undertook, were the least changed, and the subsystems that really made Zhao Xin more important were not completed.

In the first batch of 20 ship experiments, in fact, it does not include all the subsystems of the Galen ship, and a simple hull of four or five layers cannot be realized on the current ship.

The problem of the strength of the shipwright, the largest of the first batch of 20 ships, only 1,600 materials, such a ship, in the Northern Song Dynasty is not small, but compared with the real multi-deck Galen ship, it is not a little bit worse.

According to the displacement of 400 tons to 500 tons of the foundation of the large Galen ship, it is basically equivalent to between 12,000 and 16,000 materials of the Northern Song Dynasty unit of measurement.

In the 21st century, there is a very famous shipwreck salvage, the salvage of the Nanhai No. 1 shipwreck, which is a shipwreck that transported silk and porcelain to overseas transactions in the early Southern Song Dynasty, and later after calculation, his tonnage is about 800 tons, which is about 24,000 materials when converted into materials.

The life span of one or two decades is normal for general large ships, and it is inferred from this time that this ship should be built in the Northern Song Dynasty, and it is not certain whether Nanhai No. 1 is the largest ship in the Northern Song Dynasty, but it can basically be determined that the shipbuilding capacity of the Northern Song Dynasty can manufacture large sea ships between 20,000 and 30,000 materials.

Of course, except for the Nanhai No. 1 shipwreck, the others are not supported by documentary records, in fact, the achievements in science and technology are quite vague in the entire feudal dynasty.

Although it is said that some big businessmen, after controlling some resources, can use money to buy the literati to record, but for craftsmen, except for a few, they have a higher status and have been officials to a very high level.

Later, the shipwright who was recruited was much higher than the first shipwright, but he was only an independent supervisor of about 800 ships.

For Zhao Xin, steady development is the most important approach, and in the initial series of ship experiments, the tonnage is not very high.