The sea route to Asan seems to have really opened the channel along with the strait being discovered? But many things are not that simple!

Sailing at sea is not a simple matter, especially before a complete survey is carried out, any route has huge risks, even after the survey is completed, it is not 100% safe, and no one knows when sailing. What will happen.

Regardless of which dynasty has sailed before, the newly born Han country has sailed the sea in a few years. Although it has cultivated a large number of seafarers, they usually sail in the coastal waters with thousands of routes at most. In the sea, there is really no deep sea.

Liu Yan is not familiar with the situation in Malacca, and he remembers a place full of islands.

A sea area, as long as there are a large number of islands, it means that the water area is not easy to go. Reefs are not the biggest obstacle. The seabed draught is generally not deep in places with islands, and it can accommodate draught at high tide. A ten-meter ship sails, but a ship with a draft of two or three meters can run aground after low tide.

The sea near the coastline is called the navy by the length of navigable time. The navy capable of navigating in the middle and far oceans is called the blue water navy. The navy that can only sail for a short distance is the brown water navy, and there are also inland water navies. And the green water navy two kinds.

The current respective fleets of the Han Kingdom are brownwater navy at best, and the range of activities is basically close to the mainland, and the farthest one is to the Malacca area, but that is only a stroll in the South China Sea.

After the strait is the Asan Strait, it is necessary to sail in the blue water ocean, and there is a blue water ocean until the southeast of Asan.

Speaking of it, there are really not too many natural harbours in the southeastern and central-southern parts of Asan, and that sea area belongs to the deep sea area, but unlike most of the flat seabeds of the continental shelf, it is directly out of the continental shelf. deep sea.

Although the sea is all sea, the problem is that not only the depths are different, but the sea conditions of different sea areas are also different. A simpler distinction, some sea areas will be relatively calm and calm, and some sea areas are the most common waves that can roll up to five meters. Above the height.

"The South China Sea is far more complicated than we imagined." Cai You still has the full right to speak. Who will let his power involve mountains and rivers resources: "The open sea of ​​the Central and South Jiaozhi area often has storm seasons, even if it is our biggest. Ships have all been overturned by wind and waves."

With the current level of shipbuilding in Han, a ship with a length of 76 meters, a width of 25 meters, and a height of 12 meters excluding the mast can be built. This kind of vessel has a draft of seven meters and is five meters above the water level. It is divided into five layers, but three of them are below the water level.

The shipbuilding craftsmanship of the Han Dynasty was inherited from the civilization of Zhu Xia, belonging to the type of Fu ship, that is, the shuttle-shaped bow, but with a fat stern, the overall look will be relatively swollen.

Of course, due to Liu Yan's ability to "call" warships, coupled with the immature shipbuilding craftsmanship, the shipbuilding of the Han Dynasty went for civilian use, and the most used technology was the pre-Qin period.

The first emperor had built ships on a large scale several times for immortality, and he really had the success of the fleet sailing and returning smoothly.

The craftsmanship and vast knowledge of the Qin Empire were destroyed and looted by Xiang Yu, the arson and looting demon. For example, the rumors of assembly line craftsmanship were destroyed by Xiang Yu. The arsonist also burned a large number of classics, some documents and craft texts. They were all burned, but some of the things he plundered were passed down, but they were divided up by the people and did not fall into the hands of the Han Empire.

The materials used by Han to build marine ships come from some families who were exterminated, and some families who were not the targets of extermination took the initiative to offer them. Among those materials are quite a few of the shipbuilding materials of the Qin Empire, but more are the building craftsmanship that emerged from the Han Empire.

The boats in the inland river are in a relatively calm environment where you can play happily. Let alone the sea, even larger lakes in the inland. The boats in the inland lakes have been blown over. It is really not a good boat. Give up.

The Han army regained Jiaozhi, and Liu Yan opened up the civilian population to colonize the Indochina Peninsula. There were too many exchanges of materials, which led to the fact that the South China Sea entered the waters where ships passed continuously.

Liu Yan has a keen interest in the sea. He is happy to see the sea routes being fully utilized, and he really sees the various resources from the Indochina Peninsula being transported back to China, but he does not understand some of the accidents caused by navigation.

"There were reported overturns and disappearances. There were 146 in two years." Ji Chang obviously did his homework: "Basically, the loss was in the storm season."

The so-called storm season should be a typhoon or a hurricane. There is no way to detect the weather in nature. When will a typhoon or hurricane roll over at sea, it must be discovered only when the hurricane or typhoon is close. Generally, ships go out to sea without knowing it, but there is no time to avoid it.

"We are summarizing relevant information." Cai You said with a serious face: "When there are storms in each season, we can make a summary."

The mainland coast dominated by the Central Plains dynasty actually has typhoons or hurricanes every year, which is very rare compared with the Indochina Peninsula.

The Indo-China Peninsula is indeed an area frequently swept by typhoons and hurricanes. When exaggerated, it can repeat itself more than a dozen times a year, almost from spring to autumn, you don’t have to do anything. Wait for the storm to sweep through before cleaning up the mess. .

Liu Yan asked, "Is there any data for the ships that Dahan sailed in the South China Sea?"

Ships need to report for departure from the port, and at the same time they need to be registered when entering the port. It does not rule out the possibility of someone going out and landing privately from a hidden place, but the official can still grasp most of the ship's navigation records and manage this aspect. It also gives a number.

"There were more than two thousand ships during the busiest period?" Liu Yan was stunned, unknowingly that there are so many sea ships in China and Han Dynasty? He asked: "What kind of ships are they?"

Small boats cannot sail long distances at sea at all. They have to have a certain tonnage, but it is estimated that no one pays attention to it these years. The benefits are enough that people dare to use small boats for navigation.

"In recent years, Dahan has sold more than 800 ships to the private sector, all of which are large ships of more than 500 materials." Cai You smiled bitterly, and then said: "Most of the ships that conduct sea voyages are inland watercraft."

One material is converted to 0.325 tons, and 500 material is 162.5 tons.

The 162.5 tons used for HNA in modern times are sea ships that are too small to be smaller. They are either small cruise ships or fishing vessels fishing in the offshore waters. But in the current era, 162.5 tons is a huge monster. Anyway, there are basically no civilian ships of the same tonnage in the inland rivers. If there are inland river punts that are also military.

Inland river punts are not suitable for sea navigation at all, and deep draught sharp-bottomed boats must be used at sea, otherwise the punt can be overturned by a little wave.

Liu Yan was surprised when he heard: "There were only 146 accidents in two years. It's really rare."

"Every family is dispatched on a large scale each time, and it is okay to connect the ships to the sea." Cai You said that the iron locks are connected, the method is a little stupid, but after the connection is huge, the volume will reduce the waves. Subversion: "The speed is inherently not fast, so it would be even slower."

Look, you really can’t underestimate the wisdom of the ancients. They knew that flat-bottomed boats were very dangerous at sea. They connected the flat-bottomed boats to each other without the use of sharp-bottomed boats, increasing the volume floating on the sea level and generating greater buoyancy to increase safety.

[At the end of the Southern Song Dynasty, the imperial court, who hid at sea and continued to fight, did the same. It was that the mainland fell completely and lacked supplies, and went to the vassal state (the Da Yue at the time) for help and was rejected. 】 Liu Yan's thoughts erratic, and pulled to the current problem that needs to be solved: "The big man should strongly encourage HNA, and it is reasonable to increase the production capacity of each dock."

Ji Chang agreed, but he had to talk about the problem: "Under the raging Hu Hu, there are no more than ten artisans. There are a large number of artisans in the south, but..."

The shipbuilding industry of the small court of the Eastern Jin Dynasty was quite good. There were as many as 60,000 craftsmen serving shipbuilding. However, after the small court collapsed, most of the craftsmen fled, and a considerable part of it was swallowed by various families.

At present, there is no such clear class classification as scholar, agriculture, industry, and business. The nobility of the gentry class is inevitable, and all of them belong to the common people, and there is no distinction between high and low.

Workers are divided into official offices and individuals. Once they become official craftsmen, they are similar to slaves. Not only do they have to be slaves, but the descendants will basically not escape this fate, which leads to no one wanting to become official craftsmen.

"If you want to build vigorously..." Cai You clearly said: "I'm afraid it is necessary to allow private private construction of docks."

"The widow has never restricted the people from building ships." Liu Yanzhen did not have this idea, and said: "What development is only relying on the government is not enough. If the big man wants to cross the world, it needs private participation."

Europe and Rome started the big voyage, which was a product of the prevalence of pirate culture. The routes were full of pirates, and there was a culture of advocating pirates at one time, but it attracted ordinary people’s interest in the sea. navigation.

Of course, Liu Yan does not allow pirates to find trouble with the country, and even their own maritime vessels cannot be attacked by pirates, but if he goes to other countries’ routes or near the sea as pirates, he is still happy to see it.

"The people can build their own docks, but it is necessary to regulate management." Liu Yan thinks that if this article is to be implemented, the South should be happy: "What kind of ship is built and how many ships are launched must be strictly recorded."

Lu Yi, who had just returned to the center, had his eyes brightened and exchanged a glance with Yu Yi, who was equally excited, and the two said in unison: "How is the technology for building sea-going ships provided?"

Having said that, there is a difference between the systems of inland watercrafts and HNA ships. Not only is the bottom structure of the ship, but in fact, how to lay the keel is a question of the university.

The requirements for the keel of inland watercrafts are not so strict, even multi-section assembly is also within the acceptable range, all because the pressure caused by the inland waters on the ships is not great.

The sea is not the same thing as an inland river. The waves test the keel of a ship all the time, waiting for the keel to break without paying attention, and the ship sinks to the bottom of the sea in an instant.

In addition to the keel, there are also differences in other structures between inland watercrafts and sea-going ships. The most obvious one is the type of bottom. In addition, the kinetic energy of inland rivers and the sea is also exquisite. Although they all rely on wind, the layout of the masts and sails is another issue.

"Naturally, it can't be free." Ji Chang is a steward. For the current situation of Han, it is not necessarily poor. What is lacking is materials: "You can use technology to buy shares, and you can also repay the materials later."

Liu Yan originally wanted to engage in patents, but thinking about the lack of such a big environment, he felt that Ji Chang's approach was more reliable.

Many years of sailing have not been without gains. In the past, the mainland was only navigating the Bohai Sea, the Yellow Sea, the East China Sea and the peninsula. This stage is to train seafarers and accumulate experience. The southeast and the south are followed by large-scale sea navigation.

The South 1 Sea is a footbath for the sea, but the South 1 Sea is much larger than the trench between the mainland and the peninsula.

The South 1 Sea is on the north side of the continental shelf, but on the south side there are a large number of densely packed islands. Only the data currently held by the Han country ~lightnovelpub.net~ The number of explorations for small islands and sea reefs has reached nearly 100. It's just that most of them are islands without fresh water, and large islands are like Luzon.

Han has discovered many islands in the later Philippines, and even Brunei, Malaysia, Indonesia and other islands have also come into sight.

If the discovery of islands is about the discovery of land, with various attached resources, the discovery of the cold current is really a big discovery.

The earth has areas where cold currents and warm currents flow. For HNA, it is related to the formation of monsoons. Navigation before the formation of mechanical power technology relies on monsoons. Although the annual monsoon is the same, the sea voyage can go back and forth in a year, and the monsoon has to wait for the next year, but the discovery of the monsoon is really important.

"Some people find islands full of spices, some people find gold that can be easily picked up after they get on the island, some people..." Yu Yi was filled with inspiration to mention many examples, and finally concluded: "The sea is a treasure house, or there is no owner. Treasure house."

Not only land resources such as spices, gold, and precious woods, but the ocean also has a wealth of seafood products. At present, Han is engaged in large-scale fisheries in the East China Sea, Bohai Sea, and Yellow Sea, and even hunting and killing whales is currently lacking. Most of the seafood products benefit the coastal areas, and it is difficult to keep them fresh and transport them to the inland. The inland seafood is basically all kinds of processed salted fish and dried fish.

"There is still a master." Ji Chang thinks that this meeting talked about a lot of exciting things, but not only to discuss the feasibility of the military invasion of Asan, there is too much good news and a good mood: "There are wild people on the islands. , Just don't fight."

A burst of "haha" laughter was released. Ji Chang made no mistake. There were people on the islands. Those savages were basically in the stage of drinking blood and drinking. Some did not even enter the Stone Age.