sweeping the world

Chapter 652 Unowned Treasure
With the discovery of the strait, the sea route to Asan seems to have really opened up?But many things are not as simple as they seem!
Navigating at sea is not an easy task, especially before a complete exploration is carried out, any route has huge risks, even after the exploration is completed, it is not 100% safe, and no one knows what will happen when sailing. What happened.

Regardless of which dynasty has sailed before, it took a few years for the new Han Dynasty to sail the sea. Although a large number of sailors were trained, they mostly sailed in the offshore, and the routes were at most thousands. In the sea, I have never been out of the deep sea.

Liu Yan was not familiar with Malacca, and his impression was that it was a place full of islands.

If there are a large number of islands in a sea area, it means that the waters there are not very simple. Reefs are not the biggest obstacle. The seabed draft in places with islands is generally not deep and can accommodate the draft at high tide. A boat with a draft of [-] meters sails, but after the tide ebbs, a boat with a draft of [-] or [-] meters can run aground.

The sea near the coastline is called a navy based on the length of time it can sail. Those that can sail in medium and long distances are called blue water navies. Those that can only sail short distances are called brown water navies. There are also inland river navies. and green water navy.

The current fleets of the Han Dynasty are brown water navies at best. Their activity range is basically close to the mainland. The furthest they go is to the Malacca area, but that is just wandering around the South China Sea.

After crossing the strait is the Asan Ocean, which needs to be sailed in the blue water ocean, all the way to the southeast of Asan is the blue water ocean.

Speaking of which, there really aren't too many natural harbors in the southeastern and central-southern parts of Asan, and that sea area belongs to the deep sea area, unlike most of the flat seabed on the continental shelf. deep sea.

Although the sea is all sea, the problem is that not only are the depths different, but the sea conditions in each sea area are also different. To make a simpler distinction, some sea areas will be relatively calm, while some sea areas will have a common wave that can roll up to five meters. height above.

"The South China Sea is far more complicated than we imagined." Cai You still has sufficient right to speak, who made his authority involve mountains and rivers resources: "The seas in the central and southern regions of Jiaozhi often have stormy seasons, even our largest Ships have been capsized by wind and waves.”

With the current level of shipbuilding in the Han Dynasty, it is possible to build a ship with a length of 76 meters, a width of 25 meters, and a height of 12 meters without the mast.This kind of ship 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 technology of the Han Dynasty was inherited from the Zhuxia civilization. It belongs to the Fuchuan type, that is, the shuttle-shaped bow, but with a fat stern, the overall appearance will appear relatively swollen.

Of course, due to Liu Yan's ability to "summon" warships, and the immature shipbuilding technology, Han Dynasty's shipbuilding was mainly for civilian use, and the most utilized technology was pre-Qin technology.

The First Emperor built ships on a large scale several times in order to live forever, and he actually succeeded in having a fleet sail out to sea and return smoothly.

The crafts and vast knowledge of the Qin Empire were destroyed and plundered by Xiang Yu, an arsonist and robber. 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 handed down, but they were divided among the people and did not fall into the hands of the Han Empire.

The materials for building ships used by the Han Dynasty came from some aristocratic families that were exterminated, and some aristocratic families that were not targeted for the extermination offered to donate.Among those materials, there are many shipbuilding materials of the Qin Empire, and more of them are the shipbuilding crafts that emerged in the Han Empire.

Building boats can play happily in the relatively calm environment of the inland river. Not to mention the sea, there are cases of building boats being blown over in larger lakes in the inland. It is really not a good kind of boat. Make a waiver.

The Han army regained Jiaozhi, and Liu Yan opened up the people to colonize the Indochina Peninsula. There were too many exchanges of materials, which led to the fact that the South China Sea did indeed enter a sea area where ships traveled constantly.

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

"There were reported overturns and disappearances, and there were 140 cases within two years." Ji Chang obviously did his homework: "Basically, the losses occurred during the storm season."

The so-called storm season should be typhoons or hurricanes.There is currently no means to detect natural weather conditions. When a typhoon or hurricane will form at sea, it can only be discovered when the hurricane or typhoon is very close. Usually, ships go to sea without knowing it, and when they are discovered, they have no time to escape.

"We are summarizing the relevant information." Cai You said with a serious face: "What season of the year is there a storm, and we can make a summary."

On the coast of the mainland where the Central Plains Dynasty dominates, there are actually typhoons or hurricanes every year, but compared with the Indochina Peninsula, it is very rare.

The Indochina Peninsula is indeed an area where typhoons and hurricanes frequently sweep through. It can be exaggerated to say that they can come back more than a dozen times a year. From spring to autumn, you don’t have to do anything, just wait for the storm to sweep through and then clean up the mess. .

Liu Yan asked: "Do you have data on the ships sailing in the South China Sea?"

Ships need to report when they leave the port, and they also need to be registered when entering the port. The possibility of someone going out to sea and landing from a hidden place is not ruled out, but the official can still grasp the sailing records of most ships. Cai You, who manages this A number is also given.

"There were more than two thousand ships during the busiest period?" Liu Yan was stunned. Unknowingly, there were so many ships in Han Dynasty?He pressed, "What kind of ships are they?"

Small boats simply cannot sail long distances on the sea, they have to be of a certain tonnage, but it is estimated that no one pays attention to this these days, even if the benefits are enough, some people dare to use small boats for sailing.

"In recent years, the Han Dynasty has sold more than [-] ships to the private sector, all of which are large ships with a weight of more than [-] pieces." Cai You smiled bitterly and continued: "Most of the ships that conduct sea voyages are inland river ships."

The conversion of one material is 160 tons, and five hundred materials is [-] tons.

The 160 160 tons used for sea navigation in modern times are extremely small sea boats, either small yachts or fishing boats fishing in the offshore.But in the current era, [-] [-] tons is a giant. Anyway, there are basically no civilian ships of the same tonnage in inland rivers, and there must be inland river flat boats that are also military.

Flat-bottomed boats in inland rivers are not suitable for sea navigation at all, and steep-bottomed boats with deep drafts are still needed at sea, otherwise even a slight wave can capsize the flat-bottomed boat.

Liu Yan was surprised when he heard that: "There were only 140 six accidents in two years, really very few."

"Every family is dispatched on a large scale every time, and it's okay to connect the boats for use at sea." Cai You talked about the iron chain chain, the method is a bit stupid, but the large size will reduce the waves after being connected Subversion: "It's just that the speed is not fast, so it will be even slower."

Look, you really can't underestimate the wisdom of the ancients. They knew that flat-bottomed boats were very dangerous on the sea, so they connected the flat-bottomed boats to each other when there were no sharp-bottomed boats, which increased the volume floating on the sea level and generated 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.That is, the mainland was completely occupied and lacked supplies, so I went to the vassal state (Da Viet at the time) for help but was rejected. 】Liu Yan's thoughts wandered for a moment, and he turned to the current problem that needs to be solved: "The big man should vigorously encourage HNA, and he should increase the production capacity of each dock."

Ji Chang agreed, but he had to talk about the problem: "Under the ravages of the barbarians, there are no craftsmen left. There are a large number of craftsmen in the south, but..."

The shipbuilding industry of the small imperial court in the Eastern Jin Dynasty was quite good. There were as many as [-] craftsmen serving shipbuilding alone. However, after the small court collapsed, most of the craftsmen fled, and a considerable part was swallowed up by various families.

At present, there is no such clear class division as scholars, peasants, workers, and merchants. The nobility of the gentry class is inevitable, and the people below it all belong to the common people, and there is no distinction between high and low.

Workers are divided into government agencies and individuals. Once you become an official craftsman, you are almost like a slave. Not only do you have to be a slave, but future generations basically cannot escape this fate, which leads to no one wanting to become an official craftsman.

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

"The widow has never restricted the people from building ships." Liu Yanzhen didn't have such an idea, and said, "It's not enough to rely on the government to develop anything. If a big man wants to travel across the world, he needs the participation of the people."

Europa started its great voyage, which was a product of the prevalence of pirate culture. All routes were filled with pirates. There was also a culture that advocated pirates for a time, but it attracted ordinary people's interest in the sea. It really was not a great voyage that relied on the government. .

Of course, Liu Yan does not allow pirates to cause trouble for the country, and even the ships of his own country cannot be attacked by pirates, but he is still very happy to see his own people go to other countries' routes or be pirates near the sea.

"People can build their own docks, but they need to regulate management." Liu Yan felt that if this rule was implemented, the south should be full of joy: "What ships are built and how many ships are launched must be strictly recorded."

Not long after returning to the center, Lu Yi's eyes lit up, and he exchanged a glance with Yu Yi, who was equally excited, and they both said in unison: "In what way will we provide the technology for manufacturing seagoing ships?"

As I said, there is a difference between the systems of inland river ships and sea-going ships, not only the bottom structure, but how to lay the keel is actually a big question.

The requirements for the keel of inland river boats are not so strict, even multi-stage assembly is within the acceptable range, all because the pressure on the boats caused by inland rivers is not great.

The sea is not the same thing as inland rivers. The waves are always testing the keel of a ship.

Apart from the keel, there are also differences in other structures between inland river vessels and sea-going vessels, the most obvious being the type of bottom.Furthermore, the kinetic energy relied on by inland rivers and seas is also particular. Although they all rely on wind power, the layout of masts and sails is another big question.

"Of course it can't be free." Ji Chang is a great steward. Regarding the current situation of Han State, poverty is not necessarily poor. What is lacking is materials: "It can be done through technology investment or subsequent material repayment."

Liu Yan originally wanted to engage in patenting, but when he thought about the lack of such a big environment, he felt that the method proposed by Ji Chang was more reliable.

Years of sailing have not been fruitless. In the past, the mainland only sailed the Bohai Sea, the Yellow Sea, the East China Sea and the peninsula. This stage is to train sailors and accumulate experience. Later, the southeast and south are large-scale sea voyages.

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

To the north of the Nanhai Sea is the continental shelf, but to the south are a large number of densely packed islands. Based on the data currently available to Han State alone, the number of explorations for small islands and reefs has reached nearly a hundred, but most of them are Islands without fresh water, big islands are like Luzon.

The Han Dynasty had already discovered many islands in the Philippines, and Brunei, Malaysia, Indonesia and other archipelagos also came into view.

If the discovery of islands is about the discovery of land and its associated resources, the discovery of cold currents is really a big discovery.

The earth has areas where cold currents and warm currents flow. In terms of navigation, it is related to the formation of monsoons. Navigation before the formation of mechanical power technology relied on monsoons.Although the annual monsoon is just like that, so a sea voyage can only be completed in one year. If you don't catch the monsoon, you have to wait until 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 going to the island, and some people..." Yu Yi excitedly mentioned many examples, and finally concluded: "The sea is a treasure house, or is there no owner?" treasury."

Not only are there land resources such as spices, gold, and precious wood, but the sea is also rich in seafood products. At present, the Han Kingdom is carrying out fisheries in the East China Sea, Bohai Sea, and Yellow Sea. , Most of the seafood products benefit the coast, and it is difficult to keep them fresh and transport them to the inland. The seafood that is eaten in the inland is basically all kinds of processed salted fish and dried fish.

"There is still a master." Ji Chang thought that many exciting things were discussed at this gathering. They not only discussed the feasibility of the military's invasion of Asan, but also felt good because there was so much good news: "There are savages on various islands. , just without beating."

A burst of "haha" laughter followed. Ji Chang was not wrong. There were people on various islands. Those savages were basically in the stage of eating hair and drinking blood. Some of them had not even entered the Stone Age.

(End of this chapter)