Zhuge Jin heard that Mizhu's Liaodong trade had not sold ships and horses, but had always been selling those celadon and steel, so he couldn't help but remind him.

It seems that Mi Zhu still hasn't understood the deep meaning of his previous arrangement.

But fortunately, this trade has only been carried out for more than two rounds and more than three months, and it is not too late to adjust it in the future.

And after listening to Zhuge Jin's in-depth analysis, Mi Zhu really seemed to have opened a new perspective, and couldn't help but deduce and think about it carefully:

"Selling a sea ship to Gongsun Du is actually to facilitate him to open up the belt and deal with Sanhan? But in this case, wouldn't Gongsun Du's power be stronger? At that time, it will be located in the east of Haidong, thousands of miles away, and when the Central Plains is unified, it will be difficult to think about it again. ”

Zhuge Jin calmly patted Mi Zhu's shoulder, and analyzed earnestly: "Zizhong is too worried, you have to imagine this: we were in Yuzhang and the six counties in the south of Danyang, and it took a lot of energy to subdue the Shanyue people for my use."

I can easily subdue them, but thanks to the combat power of mountaineering and the temptation of the 'immortal art' of turning iron into copper to the people of Shanyue, everyone will get rich together to solve the people's livelihood. But in the future, will we still be sure to persuade the barbarians of Obifang and Samhan?

Samhan has scarce mineral deposits and all its products are owned by the Central Plains, so it is difficult to hope to attract local barbarians to their hearts by developing people's livelihood. At this time, we should learn from the method of Zishan Xiandi in Fujian:

Shanyue in Fujian also has no special products, and the government can't get the bait in terms of people's livelihood, but they are willing to submit to the Han Dynasty and obey Wanghua from now on, why is this? It's not that Sun Ce slaughtered all the way before, chasing Wang Lang because of food to the enemy.

When Sun Ce and Wang Lang repeatedly tug-of-war, they each wooed Shanyue, and in the end, when we went to clean up the mess, the Shanyue people were all tied to the chariots of both Sun and Wang, and there were few more raw barbarians, and they all became familiar barbarians.

The same is true for the people of Sanhan, if the Han court directly attacked them, they did not suffer enough at first, and they were used to self-reliance, and most of them would rather die than give in. But let Gongsun Du be the king first, clean the thorns in the three Hans, and then we will go to Ping Gongsun Du in the future, so we don't have to worry about the problem of raw and cooked Yi, Gongsun Du has already helped us become mature Yi. ”

Mi Zhu quietly thought about this train of thought for a long time, and then suddenly it became clear.

There are indeed often such situations in the business field, where the boss and the second boss in a market repeatedly wash their share, and finally wash the third child. Mi Zhu has been in business for many years, and this simple truth can still be understood.

However, out of prudence, he still put forward a few detailed implementation level opinions:

"If it is to induce Gongsun Du to conquer the barbarians, selling the sea ship is really a clever move. As far as I know, to the east of Liaodong, it is indeed extremely difficult and dangerous to march by land into the peninsula, and there are snow-capped mountains and muddy waters in the middle.

If there were ships going south along the coast, it would save countless hardships for supplies. However, I thought that Gongsun Du only needed to use a sea ship suitable for coastal navigation when he went south to Sanhan, and he did not need to use a good ship that could sail across the sea.

The sea ships used by our army today can sail directly from Shandong to Liaodong. If this kind of ship is leaked, wouldn't Gongsun Du also be able to take the initiative to trade with us in the future, and even trade with other coastal princes except Yuan Shao? How do we do it?

Is it possible to get an improved model, which is more suitable for sailing along the east coast of the Liaodong Peninsula, and is not conducive to crossing the sea directly, and is specially used to sell to Gongsun Du? ”

Mi Zhu's words also came to mind suddenly in this kind of brainstorming that inspired each other. As soon as he exited, he felt a little reckless and wanted to take it back.

My own requirements are too high! The Zhuge brothers were able to build a new keel ship, and the sailing speed and seaworthiness were greatly improved compared to the original old ship, how could they pick and choose!

So Mi Zhu quickly changed his words: "Ziyu doesn't have to mind, I just said the last sentence casually just now......

Zhuge Jin was inspired by the other party, and raised his hand to signal Mi Zhu not to quarrel, and asked him to think quietly: "No need, this argument is very good, let me think about it." ”

Logically, Mi Zhu's suggestion is very good.

In later generations, even if they decided to let go of a certain technological product, those countries that sold arms would do something at the door and turn it into a shrunken "foreign trade version."

For Gongsun Du, the ability to sail across the strait between the Liaodong Peninsula and the Shandong Peninsula is indeed not what he should need, and he only deserves to use a ship that is fast, stable and strong enough to sail on the Korean Peninsula.

However, it would not be cost-effective to take great pains to replace the chassis or hull design of the ship just for the sake of a foreign trade version of Gongsun Du.

The cycle is long and brain-consuming, and the craftsmen and the shipyard's production equipment have to be re-run-in.

Zhuge Jin naturally thought that the shrinkage of the foreign trade version of weapons in later generations was mainly due to the deletion of attached equipment, and the chassis was often immobile, which was the most mature experience in cost reduction, and since Zhuge Jin knew, there was no reason not to use it.

"So, is there a way not to change the 'chassis' of the sea ship, but only change the superstructure and facilities, to get a foreign trade version of Gongsun Du that is super strong along the coast and cannot cross the sea?" Zhuge Jin pondered along this line of thought, and really thought about it for a long time.

Mi Zhu already knows Zhuge Jin very well, and he knows: Whenever he sees Zhuge Jin shaking the folding fan at a uniform speed, without any other movements, and without even rolling his eyes, he must not disturb.

Mr. Zhuge is retreating in his mind again, and when he thinks about it enough and hugs his knees and howls, it will be out of the customs.

Sure enough, Zhuge Jin ignored the cold of the second day of the lunar calendar, gently shook the fan for an unknown amount of time, and suddenly "snapped" it together:

"There is a way, we don't need to change the hull of the keelboat, the underwater structure is the same, but the upper cabin is widened - take the now common, two-foot keel sea ship as an example, we widen the upper cabin to three zhang! The port side is five feet out each!

In this way, the underwater part is as narrow as the new keel boat, but the water is as wide as the old fighting ship, which is convenient for the bed crossbow to be arranged on both sides, and can also give the crossbowman and the oarsman more parallel space. ”

Mi Zhu was confused when he heard it, he was also very knowledgeable about navigation, but Rao was born in a maritime merchant like him, and he didn't understand how the ship described by Zhuge Jin worked.

"Oarsmen and crossbowmen placed side by side? Crossbowmen outside, oarsmen inside? So how do you row a boat? Your oars have to stick out of the portholes, and if the oars are occupied by the crossbow holes, how can you row? ”

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The question raised by Mi Zhu is also inevitable to be asked by all people who understand navigation in this era.

At that time, neither the warships of the Han Dynasty nor the warships of Rome in the West could "operate on the same deck, oarsmen and crossbowmen at the same time", because both of them had to occupy the broadside space and must interfere with each other.

At the same window, the oars have to be stretched out to paddle, and the crossbowmen can't aim and release their arrows.

Therefore, whether it is a building ship, a fighting ship, or a crossbowman, the deck where the crossbowmen shoot is higher on the oarsman's deck, or simply go to the back of the female wall battlement on the roof of the building to release arrows.

However, in the face of Mi Zhu's question, Zhuge Jin smiled, and this was the question he was waiting for.

"Quite simply, didn't I make the ship's superstructure five feet wider to port and port? Therefore, the paddle port does not need to be opened to the side of the boat, but directly to the downside! From the part of the upper cabin that is wider than the side of the waterline, dig a hole downward, and the oars stick straight down into the water!

Another advantage of this is that it is important to know that the oarsman is the most likely to be killed or injured when firing crossbows and crossbows in traditional warships. Because the oars window has to ensure the range of movement of the oars, it is impossible to cover the porthole covers, and enemy arrows are the easiest to shoot through the oars window.

If you have to cover the rowing window to fight, the price is that the boat will lose most of its power and can only sail on the thrust of the sails. When the paddle window is opened downward, it is impossible for enemy arrows to shoot up from the water into the cabin, and the oarsmen will not be injured.

How much of an advantage will a ship that is fast and unable to shoot its oarsmen in a decisive battle have an advantage over older ships? Will Gongsun Du not be moved? And after I renovated it like this, I actually buried a hidden danger, that is, this new ship is top-heavy and unstable in the center of gravity because the upper cabin is wider than the waterline.

Therefore, in terms of seaworthiness, or sailing stability, it is far inferior to the new keel ship with the same width up and down. Even compared to the keelless old sand boats, there is no stability advantage, but the speed is faster.

What I want to give Gongsun Du is a warship that is fast and has strong defense against fire, but it can't cross the sea and can only stick to the sea. ”

Zhuge Jin made his idea clear in one go. Mi Zhu listened to these advantages and disadvantages analysis, and was also stunned, but he didn't expect Ziyu to think of such a whimsical but seemingly impossible improvement plan in such a little time.

And the cost is also acceptable, the chassis hull design has not changed, only the superstructure.

He didn't know that Zhuge Jin was also inertial thinking, and he directly combed and reversed the models of warships around the Korean Peninsula that he had seen in later generations, and came to this conclusion.

The plan conceived by Zhuge Jin is actually similar to the "banwu boat" used by the later Goryeo/Joseon kingdoms from the Song Dynasty in the Central Plains to the early Ming Dynasty.

The biggest feature of the North Korean Itaya ship is that it is top-heavy, poor seaworthiness and stability, but the defense is absolutely strong. Its signature structural feature is that the superstructure is wider than the bottom of the boat, and the boat carries the building, and then uses the superstructure to extend the width of the ship's side and creatively open the paddle window downwards to absolutely protect the oarsman.

As for the specific shape and structure of the banwu ship, Zhuge Jin had also seen it in the movies "Mingliang Naval Battle" and "Luliang Naval Battle" in Bangziguo before he crossed over, and the props were basically restored, so Zhuge Jin could also roughly depict its characteristics by impression.

In the Battle of Mingliang, Yi Sunsin did not use turtle boats, but relied on 12 banya ships to shoot 300 warships of the Japanese invaders, relying on the structure of the warship to defend the sailors to the "iron cannon" fire of the Japanese army. (Later, turtle boats were used in the Battle of Luliang, and the Ming army participated in the battle.) The Battle of Mingliang was just a small naval battle the year before, and only the Banya ship was used)

Zhuge Jin is nothing more than a ship type that he summed up in the history of the stick people, sacrificing seaworthiness and strengthening defense, and sold it to Gongsun Du 800 years in advance, so that Gongsun Du can "master the skills of Yi to control the country", isn't it beautiful?

……

It took Mi Zhu a long time to finally understand Zhuge Jin's train of thought, but he soon found another problem.

"But...... Since this ship has extremely poor seaworthiness, cannot cross the sea, and is prone to capsizing top-heavy, how can we sail from Guangling County to Liaodong to sell it? Will there be any danger on the way? Or can only the lower deck be filled with ballast cargo, and the upper deck should be empty? Can only be loaded with light and disposable goods? ”

Zhuge Jin thought for a while: "This is also a way you said, and it will be stipulated in the future that if the plate house ship in Guangling is transported to Liaodong, only the lower narrow hull will be allowed to load steel and celadon ballast." The upper layer could no longer hold tea, but could only hold some light goods that were lighter than satin linen.

Another way is to ......"

Thinking of this, Zhuge Jin suddenly realized that he wanted to confirm the situation, so he called the attendants and asked him to find Tai Shici and get another map.

Tai Shi Ci was waiting outside, and soon came in. Zhuge Jin pointed to the map he had just gotten and asked:

"Ziyi, when you went to open up the route last year, when you passed through the other side of Muping, at the tip of the Liaodong Peninsula, how was the rule of Gongsun Du there?"

Tai Shi Ci didn't think about it, and replied: "Gongsun Du has not yet established his rule in the Yu clan, this place hangs on the peninsula alone, deep into the sea, and comes by land from the hinterland of Liaodong, to climb over the mountains on the peninsula, there are only fishing villages in the local area, and there are some pirates, who call themselves foreigners." ”

The county mentioned by Zhuge Jin is the area of Dalian and Lushun in later generations. Since ancient times, the topography of the peninsula is mostly composed of mountainous areas, otherwise it would not be possible to extend into the sea to form a peninsula, so the land at the tip of the peninsula is often easy to reach by sea, but it is very painful to take the land route.

Gongsun Du had not built a navy before, so of course he would not come to a remote place like the Yu clan that needed to climb over many mountains, and the benefits of local governance could not catch up with the cost of governance.

Zhuge Jin was very satisfied with this answer: "Since Gongsun Du doesn't like it, then we will send someone to occupy it, and then recruit displaced people, collect fishermen, and Haikou in Yushi County, and build a shipyard."

In the future, all the defective version of the sea ships sold to Gongsun Du were built at the Shipyard. The Guangling Shipyard specializes in manufacturing for our own use. Anyway, celadon and other goods in short supply can still maintain the Liaodong trade for a year and a half. When those goods are almost saturated, we will start selling sea ships to Gongsun Du to fight the Dongyi people next year, so there is no need to worry. ”

Zhuge Jin casually drew a circle on the map, and since then it has formed the pattern of two shipbuilding centers in the future of the Han Dynasty: the shipyard at the mouth of the Yangtze River in Guangling County is the first sea ship base in the Han Dynasty, and it was renamed "Jiangnan Shipyard" in later generations.

Liaodong Yushi County is the second sea ship base, and later changed its name to "Dalyan Shipyard".

Tai Shi Ci was about to participate in the military campaign against Sun Ce, so he didn't need to open the way for this matter. Let Mi Zhu rely on his own commercial strength to complete the preparatory work.

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