The sea route to Ah San seems to have really opened the passage with the discovery of the strait, but many things do not seem so simple Sailing at sea is not a simple task, especially before a complete exploration, any route is a huge risk, even after the exploration is completed, it is not 100% safe, and no one knows what will happen when sailing.
Regardless of which dynasty had already sailed before, it was only a matter of a few years for the nascent Han Kingdom to gallop the sea, although a large number of seafarers were trained, but more often they sailed in the near sea, and the route was at most thousands of nautical miles, and they really never went out of the deep sea.
Liu Yan was not familiar with the situation in Malacca, and his impression was that it was a place full of islands.
A sea area, but where the number of islands is very large, it means that the waters there are not simple, reefs or something is not the biggest obstacle, there are islands where the seabed draft is generally not deep, at high tide can accommodate a draft of ten meters of ships to sail, but after the low tide is a draft of two or three meters of ships can be stranded.
The sea close to the coastline is called by a term that the navy is distinguished by the sailing time, the navy that can carry out medium and far ocean navigation is called the blue water navy, the navy that can sail only far is the brown water navy, and there are two kinds of inland water navy and green water navy.
The current respective fleets of the Han State are at best the Brown Water Navy, and the range of activities is basically close to the mainland, and the farthest is to the Malacca area, but that is only in the South 1 Sea.
After crossing the strait, it is the Asan Strait, which needs to be navigated in the blue water ocean, and it has always been a blue water ocean to the southeast of Asan.
Speaking of which, there are really not too many natural harbors in the southeast and south-central parts of Asan, and that sea area belongs to the deep sea area, unlike the gentle seabed of most continental shelves, which is directly out of the continental shelf.
Although the sea is all sea, the problem is not only the depth is different, the sea conditions in various sea areas are also different, it is easier to distinguish, some sea areas will be relatively calm, and some sea areas are the most ordinary waves can roll up to a height of more than five meters.
"The South 1 Sea is far more complicated than we imagined."
Cai You still has full right to speak, who let his authority involve mountains and rivers: "In the open sea of the central and southern region of Jiaozhi, there are often storm seasons, and even our largest ships have cases of being overturned by wind and waves. ” With the current level of shipbuilding in the Han Kingdom, it is possible to build a ship with a length of 76 meters, a width of 25 meters, and a height of 12 meters not counting the mast.
The vessel has a draft of seven meters and is five meters above sea level, and is divided into five tiers, except that three of them are below the water level.
The shipbuilding technology of the Han Kingdom was inherited from the Zhuxia civilization and belonged to the type of Fu ship, that is, the kind of fusiform bow, but with a fat stern, the overall look will be relatively swollen.
Of course, due to the relationship between Liu Yan and the fact that he could "summon" warships, coupled with the immaturity of shipbuilding technology, the shipbuilding of the Han Kingdom was rushed to civilian use, but the most used was the technology of the pre-Qin Dynasty.
The First Emperor built ships on a large scale several times in order to live forever, and there was really a fleet that sailed to sea and returned smoothly.
The craftsmanship and massive knowledge of the Qin Empire were destroyed and plundered by the arson and robbery madman Xiang Yu, for example, the assembly line process was rumored to have been destroyed by Xiang Yu, and the arsonist also burned a large number of classics, some documents and craft texts were burned, but some of the things he plundered were handed down, but they were divided by the people and did not fall into the hands of the Han Empire.
The Han Kingdom built ships at sea, and the information came from some families that were exterminated, and there were also families who were not the targets of extermination who took the initiative to dedicate themselves.
Among those materials, there are many shipbuilding materials of the Qin Empire, and more of them are the shipbuilding technology of the rise of the Han Empire.
The building boat is to play happily in the relatively calm environment of the inland river, not to mention to the sea, that is, the inland lakes have been blown over, it is really not a good boat, and the Han Kingdom will give up.
The Han army regained Jiaozhi, and Liu Yan opened up the people to colonize the Indochina Peninsula in the past, and there were too many material exchanges, resulting in the South 1 Sea indeed entering the sea area where ships were constantly traveling.
Liu Yan has a strong interest in the sea, and is happy to see the sea routes being fully utilized, and really sees all kinds of resources from the Indochina Peninsula being transported back to the mainland, but he does not know about some accidents caused by navigation.
"There have been 146 reported overturns and disappearances in two years."
Ji Chang has obviously done his homework: "It's basically a loss in the storm season." ” The so-called storm season should be a typhoon or a hurricane.
Now there is no means to detect the weather in nature, when a typhoon or hurricane will form at sea, it must be found when the hurricane or typhoon is close, and it is generally the ship that does not know that it is going to sea, and it is too late to avoid it when it is discovered.
"We're in the process of putting together the relevant information."
Cai You said with a serious face: "When a storm hits in any season every year, you can make a summary." ” In fact, typhoons or hurricanes hit the mainland coast where the Central Plains Dynasty was located 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, and when it is exaggerated, it can come back and forth more than a dozen times a year, and from spring to autumn you don't have to do anything, waiting for the storm to sweep and then clean up the mess.
Liu Yan asked: "Can there be data on the ships of the Han Dynasty sailing in the South 1 Sea?"
Ships need to be reported when they leave the port, and they also need to be registered when they enter the port, and it is not excluded that someone has gone to sea and landed without permission from a certain hidden place, but the official can still grasp the vast majority of ship navigation records, and Cai You, who manages this aspect, also gave a number.
"There are more than 2,000 ships in the busiest period" Liu Yan was stunned, and unconsciously there were so many sea ships in the Han Kingdom, and he asked: "What type of ships are they?"
Small boats can't sail long distances at sea, and they have to be tonnage to a certain extent, but it is estimated that no one pays attention to this these days, and the benefits are enough that small boats are used for navigation.
"In recent years, there have been more than 800 ships sold by the Han Dynasty to the people, all of which are large ships with more than 500 materials."
Cai You smiled bitterly, and then said: "Most of the ships that carry out sea voyages are inland river boats. ” One material is converted to 0.325 tons, and 500 materials is 162.5 tons.
The 162.5 tons used in modern sea navigation are too small sea vessels to be small, either small cruise ships or fishing vessels that fish in offshore waters.
But in the current era, 162.5 tons is a behemoth, anyway, there are basically no civilian ships of the same tonnage in inland rivers, and there are also inland river flat-bottomed boats that are also military.
Inland river flat-bottomed boats are not suitable for sea navigation at all, and you still have to use sharp-bottomed boats with deep drafts at sea, otherwise the slightest wave can overturn the flat-bottomed boat.
Liu Yan was surprised when he heard this: "There have only been one hundred and forty-six accidents in two years, which is really rare. ” "Each family is a large-scale dispatch every time, and it is okay to connect the ships for the sea."
Cai You is talking about iron locks and horizontal chains, the method is a little stupid, but after being connected, the huge volume will reduce the subversion of the waves: "It's just that the speed is not fast, so it's even slower." ” Look, you really can't underestimate the wisdom of the ancients, they knew that flat-bottomed boats were very dangerous at sea, and there was no point-bottomed boat to connect them to each other, increasing the volume of floating at sea level, and generating greater buoyancy to increase safety.
At the end of the Southern Song Dynasty, the imperial court, which hid at sea to continue the struggle, did the same.
It was the complete fall of the mainland and the lack of provisions, and the vassal state at that time Dayue was rejected for help.
Liu Yan's thoughts drifted for a moment, and he pulled on the current problems that need to be solved: "Dahan should vigorously encourage HNA and increase the production capacity of each dock. ” Ji Chang agreed, but he had to talk about the problem: "Under the ravages of Hulu, there are no craftsmen out of ten.
There are a large number of craftsmen in the south, but " The shipbuilding industry of the small court of the Eastern Jin Dynasty is still quite good, and there are as many as 60,000 craftsmen serving shipbuilding alone, but after the collapse of the small court, most of the craftsmen fled, and a considerable part of them were swallowed by various families.
At present, there is no such clear class division as scholars, farmers, industrialists, and merchants, and the nobility of the scholar class is inevitable, and all of them belong to the common people, and there is no distinction between high and low.
Once you become a craftsman in the official office, you are similar to a slave, not only do you have to be a slave, but your descendants will basically not escape this fate, which leads to no one wanting to become a craftsman in the official office.
"If you want to vigorously build" Cai You clearly proposed: "I'm afraid it is to allow private construction of docks." ” "The widow has never restricted the people from building ships."
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Liu Yanzhen didn't have this idea, and said: "What to develop, just relying on the government is not enough.
If the Han wants to cross the world, it needs the participation of the people. ” Europe and Rome started the Great Voyage, which was the product of the prevalence of pirate culture, all routes were full of pirates, and there was a culture of advocating pirates, but it attracted the interest of ordinary people in the sea, and it was really not a great voyage that relied on the official to engage in it.
Of course, Liu Yan does not allow pirates to find trouble with the country, and even his own ships at sea cannot be attacked by pirates, but if his own people go to other countries' routes or be pirates in the sea, he is still happy to see it.
"The private sector can build its own dock, but it is necessary to standardize the management."
Liu Yan felt that if this article was to be implemented, the south should be full of joy: "What ships are built and how many are launched must be strictly recorded." ” Lu Yi, who had not long returned to the center, had his eyes shining, and glanced at Yu Yi, who was also excited, and the two of them said in unison: "The technology for manufacturing sea ships, in what way?"
As I said, there is a difference between the system of inland river vessels and sea vessels, not only the bottom structure, but also how to lay the keel is a university question.
The requirements for keels for inland river vessels are not so strict, even multi-stage assembly is also within the acceptable range, all because the pressure caused by inland rivers to ships is not great.
The sea is not an inland river, and the waves test the keel of a ship all the time, and if you don't pay attention to it, you will wait for the keel to break, and the boat will sink to the bottom of the sea in an instant.
In addition to the keel, inland river vessels and sea vessels are also distinguished in other structures, and the more obvious is the bottom type.
In addition, the kinetic energy relied on by inland rivers and seas, although they all relied on wind power, but the layout of the mast and sails was a university problem.
"Nature can't be gratuitous."
Ji Chang is a big housekeeper, and for the current situation of the Han Kingdom, it is not necessarily poor that he is poor, but what he lacks is materials: "You can invest in technology and repay the follow-up materials." ” Liu Yan originally wanted to engage in patents, but after thinking that there was no such environment, he felt that the method proposed by Ji Chang was more reliable.
In the past, only the mainland navigated the Bohai Sea, the Yellow Sea, the East China Sea and the peninsula, and this stage was to train seafarers and accumulate experience, and then the southeast and south were in a wide range of sea navigation.
The area of 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 north side of the South 1 Sea is the continental shelf, but the south side is a large number of dense islands, only the data currently held by the Han Kingdom, the number of exploration of small islands and reefs has reached nearly 100, but most of them are islands without fresh water, and the big islands are the kind like Luzon.
The Han Kingdom has discovered many islands in the Philippines in later generations, and the islands such as Brunei, Malaysia, and Indonesia have also come into view.
If the discovery of an island is about the discovery of land and a variety of resources attached to it, the discovery of a cold snap is really a great discovery.
The earth has a flow area of cold and warm currents, and the formation of the monsoon is related to the formation of the sea navigation, and the navigation before the formation of mechanical power technology relies on the monsoon.
Although the annual monsoon is like that, and the sea voyage can be a round trip for a year, and if you don't catch the monsoon, you have to wait for the next year, but the discovery of the monsoon is really important.
"Some people find an island full of spices, some people go to the island and find gold that can be easily picked up, and some people" Yu Yi said with many examples of excitement, and finally concluded: "The sea is a treasure house, or a treasure house without an owner." ” Not only spices, gold, precious timber and other land resources, the sea is also rich in seafood products, at present, the Han Kingdom is in the East China Sea, the Bohai Sea, the Yellow Sea to carry out fishing, even the hunting and killing of whales are doing, that is, the current lack of preservation means, most of the products of seafood are to benefit the coast, it is difficult to keep fresh and transport to the inland, the inland to eat seafood is basically a variety of processed salted fish, dried fish or something.
"There is still a Lord."
Ji Chang thought that this gathering talked about a lot of exciting things, not only to discuss the feasibility of the military invasion of Ah San, but also to be in a good mood when there was too much good news: "There are wild people on the islands everywhere, but they don't need to be beaten. ” A burst of "haha" laughter was also issued, Ji Chang was not wrong, there are people on the islands everywhere, and those wild people are basically in the stage of drinking blood, and some of them have not even entered the Stone Age
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