After Zhuge Jin returned to Wu County to guide the work in person, the construction progress of the Wu County Shipyard presided over by Lu Yi was also much faster.

Originally, from April to November, infrastructure construction took more than half a year, and there was no new technology. After Zhuge Jin came, in just over half a month, the craftsmen figured out a lot of difficult tricks.

Of course, the time to lay the foundation before is not delayed, if the foundation is not laid, let Zhuge Jin teach from the beginning, the progress will not be as fast.

For example, the design idea of the watertight compartment, the craftsmen had only heard about such a demand, but they had no clue how to work hard for several months.

After Zhuge Jin looked at the direction of the craftsmen's efforts, discussed with the craftsmen in depth, and understood their specific difficulties, he casually pointed out a few tricks, such as:

"Don't consider the horizontal compartment separation, it will be too fine, just manage the longitudinal compartment section by section",

"The underwater part of the cabin should not be entered and exited by opening the hatch, and everyone and cargo should enter and exit directly from the deck with a ladder, you may not be able to do it."

For later generations, these simple truths were just piercing a layer of window paper, but they were enough to make the shipbuilders of the Han Dynasty enlighten and suddenly realize.

Are these two details difficult?

From the point of view of technical realizability, it is not difficult at all.

But shipbuilding is a typical complex and systematic project.

There are many small improvements and small improvements, which have no value when taken out separately, and they must be combined together in a system to be valuable.

Because of this, it is difficult for those craftsmen to think of working in these "useless directions" without a high level of overall awareness of the entire system.

Before the Han Dynasty, ships had to be flooded in their holds, unless it was the kind of small fight that could plug the leak and drain the water, and the rest basically meant sinking. Therefore, no one struggles with the way in and out of the cabin, they all open the door casually, and they don't worry about lice when they have more debts.

Rashly canceling some horizontal hatches, using only shaft-type openings, and using ladders to enter and exit, undoubtedly greatly increases the cost of loading and unloading. When there is no hope for a watertight compartment, this kind of "useless work" is purely harmful and unhelpful.

So what Zhuge Jin did was to remind the craftsmen to piece together a bunch of troubles that were originally taken out separately and were all "harmful, unhelpful, increasing costs but not beneficial", but in the end, they found that after these poor tosses that increased costs were combined, a beneficial miracle actually emerged.

This miracle effect is enough to cover the cost of every little fight before, making it all worth it.

And that's not all.

With the advent of watertight compartments, the safety of seagoing vessels has been improved, and the hull has also been built larger and the length-to-width ratio has been more slender.

At this time, many sail steering operations, as well as loading and unloading people and goods through shafts and ladders, will become heavy, for example, because the mast is heightened and the sail becomes larger, the size and weight of a single sail can no longer be pulled and controlled by one or two sail operators.

This is the first time that the sail structure of the labor-saving pulley block has been introduced on a seagoing vessel.

In the same way, on the issue of steering, the rudder cannot be directly shaken the rudder to manipulate - readers who have read "Romance of the Three Kingdoms" should be familiar with it, after Cao Cao's plot of "cutting his beard and abandoning his robe", when Xu Chu covered Cao Cao's seizure of the boat to avoid arrows in Weishui, he helped Cao Cao block arrows with both hands to cover the bunker, and clamped the rudder pole between his legs to steer the boat.

This is of course a family saying, but the technical background is correct, the rudder of the Han Dynasty's ships was originally directly operated by the rudder. It's just that not one person can turn it, and a super strong man like Xu Chu can control it alone with the power of twisting his legs, and it has to be a relatively small boat.

Now the ship that Zhuge Jin wants to build has a compartment, which is heavier and narrower, and it is more difficult to turn the rudder, so it is even more necessary to use the belt-driven steering wheel with labor-saving waste distance.

The thick wooden spokes on the steering wheel can play the role of similar to the upper teeth of the gear, and then punch holes in the belt, or simply use a chain-like interlocking belt through the spokes that protrude from the steering wheel to control the gear ratio.

Pulley sailing, pulley steering, shaft loading and unloading completely eliminate horizontal hatches...... It is not difficult to take out each small point separately and assign a task for people to do it, but the difficulty is to put it together and think of doing it.

Zhuge Jin personally handled the matter, focused on this matter, and tackled the fortification for more than 20 days, and the design and engineering capabilities of Wuxian Shipyard have undergone obvious qualitative changes.

And Lu Yi, who is in charge of related work, followed Zhuge Jin to observe and learn throughout the process.

He asked himself that he already knew the navy very well, and he knew the warship very well, and after reading the whole process, he knew how big the intellectual gap was between himself and Zhuge Jin-

Many things, Zhuge Jin did not rely on the accumulation of knowledge, or directly reported the answers, he also found problems and solved them after in-depth research. The entire solution process and the direction of thinking are all in Lu Yi's eyes. And it is this kind of intimate observation that makes it easiest to see how fast and slow a person is thinking and how quick he is reacting.

……

"The king is really capable of everything, this time he pointed out so many points of the shipyard planners and craftsmen, and when they go back and wait for them to implement them, they must be able to have eyebrows within a year and a half.

It's a pity that Jun Rili has a lot of opportunities and doesn't have so much time to focus on shipbuilding, otherwise this new type of clipper can definitely be mass-produced and actual combat within two years, or even faster. ”

At the end of the rectification work, after the internal summary meeting, Lu Yi was also sincerely admired and praised, and the five bodies fell to the ground.

At this meeting, Zhuge Jin's old classmate, Lu Yi's direct boss, and former liaison Bu Qi also participated. Bu Qi is also a master of navigation and coastal territory, and the two of them can be regarded as a partner.

Zhuge Jin is not proud of the compliments of his subordinates, he is used to it, and when he heard the words, he just said on a case-by-case basis: "Two years is fast enough, and it is good to run in and run in steadily, but if you want to hurry, you can't reach it."

The ship that sails across the sea must be reliable, so that the soldiers can feel at ease and will not affect the morale of the navy. I have sent Zizhong and Ziyi to run the trade in Liaodong for nearly two years, and I am relatively well-informed in Liaodong.

I don't tell outsiders some things, but Boyan is not an outsider, you just have a good idea in your heart, don't go to verify. ”

Zhuge Jin said as he spoke, and suddenly subconsciously looked left and right, confirming that there was no one.

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Bo Yan is naturally Lu Yi's word, at this time, twenty days have passed since Zhuge Jin first came to Wu County, and it will be the New Year of the seventh year of Jian'an. Lu Yi is also twenty years old, of course, he performed the crown salute earlier, shortly after the first half of the year, after the Lu family was officially whitewashed in Wu County, Lu Yi performed the crown salute and also took the word.

Seeing Zhuge Jin's solemnity at this moment, Lu Yi of course immediately changed his solemn expression to show that he would never spread it.

However, Bu Qi, who was always quietly listening next to him, did not say anything, and he didn't need to say that the mutual trust between him and Zhuge Jin was deeper and thorough, and there was no need to act those false courtesies.

Zhuge Jin chattered to the bottom: "Zizhong and Ziyi sent to Liaodong and went deep into Xiangping's meticulous work, and recently found that Gongsun Du also seems to be sick, becoming more and more violent and suspicious, and killing innocents in Liaodong to maintain his authority.

Although Gongsun Du's illness is far less promising than Yuan Shao's, after all, the age is there. Calculating the time, Yuan Shao will probably not survive next year, Cao Cao will inevitably make a breakthrough on Yuan Shang's side within a year or two, all we can do is to slowly control Yuan Tan.

Once Cao Cao can free up his hands and deal with Yuan Tan with all his might, he will inevitably try to contact Gongsun Du and promise a higher title and official position. Now Gongsun Du is only a general of Wuwei and a marquis of Yongning canonized by Cao Cao, and has no other positions.

His Liaodong Taishou was sealed by the first emperor and has not been moved for 12 years. In the past twelve years, Gongsun Du trespassed the law, added the Pingzhou Mu by himself, and used the emperor Luanyu, which Cao Cao had never recognized.

If it really came to that moment, Cao Cao might admit the official position of 'Pingzhou Mu', and then promise Gongsun Du to take back the East China Sea and other places, or even the North Sea, so that Gongsun Du could flank Yuan Tan. All our deployments will naturally be preempted before this, and when the time comes, we will attack Gongsun Du first.

Therefore, whether it is a new type of ship with a watertight compartment, or a supporting long-sea voyage and guidance technology, it is necessary to prepare everything during this time, so as not to miss this major event, and there is no need to be in a hurry. Two years is enough. ”

Some of the words Zhuge Jin said were really heard by Mi Zhu and Tai Shici, and some were the historical knowledge that Zhuge Jin himself entrained.

But he pays attention to the way of entrainment, for example, he knows that Mi Fang is in Wu County, so all the parts that are different are said to be Tai Shici's sources, and Mi Zhu is not used as an excuse. In order to avoid the Mi Zhu and Mi Fang brothers in the future, they will reconcile and find discrepancies.

On Tai Shici's side, Mi Fang will definitely not go to verify it, let alone Lu Yi. A year or two later, everything Zhuge Jin said came true, and this is the real information.

And the people below have a sense of purpose in doing things, and they know which stage of the project they want to strive for, so they will have more motivation and planning, and Lu Yi can also control the process of key nodes.

What Gongsun Du's condition is now, in fact, it doesn't matter, the key is that his age is there, and the world knows that Gongsun Du is a post-40s, that is, born in the 140s, and now it will be 202 years, he is already in his sixties, and he is two or three years younger than Liu Biao.

The people of the Han Dynasty were already considered to be old at this age, especially in the bitter cold land of the Northeast, the living conditions were harsh, although the rich and noble families could be fed and clothed, but they also relied on a lot of meat and fat to keep out the cold.

During the Han Dynasty, there was no habit of drinking tea to relieve greasy in the north, and the agricultural conditions in the northeast at that time were not able to eat fresh vegetables for half a year, or they ate pickled vegetables. The powerful don't know the harm of greasy, and basically eat staple food, meat, and dairy products, which is similar to the living habits of the Xiongnu and Wuhuan nobles.

Gongsun Du's lifespan should have been much shorter than that of a celebrity like Liu Biao.

Bu Qi and Lu Yi were convinced of the statement that "Gongsun Du will only be one or two years, two or three years at most", and they also have the rhythm of the follow-up layout in their hearts.

After thinking about it for a while, because he was closer to Zhuge Jin, Bu Qi said what Lu Yi actually wanted to say but didn't dare to say:

"In this way, these new seagoing ships really need to be developed urgently, at least not too much. But...... Brother Ziyu is really capable of working hard, and he dares to put a burden on himself. If we had expected it to be today, if we hadn't sold the 'Banwu Boat' to that Gongsun Du in exchange for war horses, and had not helped Gongsun Du to quickly advance towards Lelang and Belt along the coastline, we wouldn't have worked so hard in the future. ”

Zhuge Jin has no regrets about the decision that has passed: "There is nothing to regret about this matter, I also wanted to drive the tiger and devour the wolf." If we were to conquer Samhan in the future, the local revolt would be fierce and we would not be able to win the hearts of the people for a long time.

Let Gongsun Du go in for a few years, and kill the most fierce resistance, and even before Gongsun Du died, Lelang, Daifang and even the natives of Sanhan in the future will definitely feel that the opportunity has come, and if they want to start again, they will inevitably attract Gongsun Du's dying counterattack and slaughter.

In this way, when we destroy Gongsun Du in the future, we can easily clear the land with the party, so that we can get twice the result with half the effort. The remnants of the local people will also be more inspired by the Lord's morality and politics. Anyway, don't worry, I dare to spread the stall so big, I am sure in my heart. For every move I put out, I have at least two or three more moves to make my own moves. ”

Lu Yi on the side listened, and his heart was still not very steady, but he didn't dare to ask more with a very good look. Still out of sight, pointing to the model of the watertight partition keel structure that the craftsmen had just built in front of him in the past few days:

"Is that all? With all due respect, I have run all over the East China Sea, the sea conditions south of the Yangtze River estuary and the north of the Yangtze River estuary are very different, there are many shallow shoals and waves in the north, and many deep waters in the south, especially in Fujian, there is a black water ditch.

If these new ships were to be used in the north, they would probably have to sail from the mouth of the Yangtze River, not beyond the west of the sea in the north, and then sail directly to Samnae, first to the Dongnae Peninsula and then directly to Samhan. But if you want to sail hundreds of miles closer to the shore, you may run aground or be harmed by the rolling waves.

Therefore, with a ship, there must be a set of navigation methods that my predecessor did not think of, so that I can not lose my place in the vast sea where I have not seen half of the land for more than ten consecutive days. ”

Buqi is now the most experienced "navigator" in Liu Bei's camp, although this is only one of his identities, his main job is to be a county prince.

Don't look at his youth, just by virtue of the merit of making a detour of 3,000 miles back then, directly bypassing the territory of the Sun family from the north of the Yangtze River estuary, and detouring back to Fujian to reinforce Wang Lang, few others in this era can do it - of course, the actual operator of that voyage was Lu Yi and the Lu family's sailor team, and Bu Qi was just the "leader".

But Buqi's vision is definitely in place, and it can be seen that the resources required for this project and how many shortcomings there are at present.

Fortunately, Bu Qi's request did not surprise Zhuge Jin, but he was pleased that his junior brother had such a down-to-earth and comprehensive vision.

Zhuge Jin said with relief: "I naturally know this, so after the shipbuilding is rectified, when the first batch of experimental ships are launched, I will select capable pilot sailors, select the elite from the navy, practice new navigation methods, and use the height of the sun/stars to ensure that the north and south will not deviate in the vast sea."

After learning this secret method, as long as you sail all the way to the east in the future, don't go south or north, you can successfully reach the hinterland behind Gongsun Du! Moreover, this method should not only be practiced by you, but also by the public and righteous people.

Counting the days, Gongjin and Yigong should also visit the lord and come back to resume their lives. I specially kept Zijing in Danyang so far, also to let him participate in this matter, so that it is convenient to mediate and observe, and unite people's hearts. ”

Zhuge Jin's geographical knowledge is still passable, how to engage in a simple "latitude navigation method" navigation positioning, with his geographical knowledge plus mathematical trigonometric knowledge, it is enough.

This thing was popularized in the early Age of Discovery in history, and it is not difficult to understand the basics.

And Zhuge Jin didn't plan to just count on Bu Qi and Lu Yixue. Zhou Yu and Han are the group of people, as long as they are well transformed, they can also be taught gradually as appropriate, let them roll up, and when the time comes, Gan Ning Buqi Lu Yi will be in charge of Nanyang, and Lu Sutai Shici and Zhou Yu will be in charge of Beiyang, with a clear division of labor, and neither side will be delayed.

If you have any opportunity and the investment cost is not high, you can try it. Anyway, it can't delay the main line.

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