Li Mengxi asked Guan Yu why he asked if he could build a big ship.

Guan Yu patiently explained, "Xi'er, our army has never walked through water since we first entered the army. If one day, the road ahead is blocked by water, if we don't build pontoons and don't build big boats, how can our troops and horses cross?"

If we don't have the ability to build a boat and bridge, wouldn't it be dangerous if we are in danger one day and cannot cross the river in a hurry?" Guan Yu said solemnly.

After listening to Guan Yu's words, Li Mengxi thought about it. Yes, marching by land is fine. If one day he has to cross a river and the river bridge is broken by water, if he builds a bridge, send two soldiers with good water skills to drag him.

A simple pontoon bridge can be built by swimming a rope across it. If the river is too wide, it will be very difficult to build a pontoon bridge. It is easier to just build a big boat to carry people across.

Li Mengxi thought about related technical issues and first talked about building a pontoon bridge.

Li Mengxi's idea of ​​building a floating bridge was to send two soldiers with good water resistance to swim over with a rope, swim to the other side, then find the rope to a tree and tie the rope to the tree, or nail the rope to the river bank with stakes.

Tie the rope to the stake.

Pedestrians can walk only relying on the carrying capacity of two ropes, but what about horses and vehicles? Li Mengxi is not sure whether just two ropes and some wooden boards can carry a vehicle full of wood.

Fortunately, there is nothing too big in the army now. The heaviest vehicle in the army is probably the cart pulling wood. If the pontoon cannot support a cart full of wood, then unload the wood first.

You can just let the empty cart pass and the wood can be divided among people and carried to the other side.

However, as for the bridge deck, you can't just walk on two ropes.

At a minimum, the pontoon bridge should be wider than the two wheels of the widest carriage in the army, and the wheelbase of the largest carriage in the army is more than five feet.

To have such a wide bridge deck, you need at least some long wooden boards with a length of at least five feet. Does the military currently have such wooden boards of sufficient size?

Perhaps, carpenters had dry wood to make wheels every day. After setting up camp, logging teams went to cut down trees around the camp and cut the wet trees into wooden boards to make the body of the cart.

If the wheels are made of wet wood, the wheels will easily deform and crack as the moisture in the wet wood desorbs. Therefore, dry wood must be used to make the wheels, while wet wood is used for the body, or even wood from a tree just cut down that evening is used to make the body.

No problem at all.

Because the carpenter camp has the process of making carts, the carpenter camp should now have some wooden boards with a length of more than five feet.

Now that the planks are there, how can they be fixed on just two ropes running from one bank to the other?

Thinking of this, it involved a blind spot in Li Mengxi's knowledge. He didn't know how to fix the wooden board and the rope together. Li Mengxi then asked Guan Yu how to fix the wooden board, whether to put two iron rings on the wooden board or what to do.

Guan Yu thought for a moment and replied that the planks could be tied up section by section without using iron rings but by tying them directly with ropes.

What do you mean by tying up the wooden boards piece by piece? Li Mengxi was confused.

Then, in order to explain to Li Mengxi how to tie the wooden boards, Guan Yu took Li Mengxi to the carpenter's camp and found two square pieces of wood with a certain width. Then he asked the carpenters for a piece of fine hemp rope. By the light of the fire, Guan Yu gave

Li Mengxi demonstrated how to tie up wooden boards without using extra iron rings.

Guan Yu picked up a piece of wood and placed it on his knees. Then he wrapped a rope around one end of the wood and tied it tightly. Then he straightened the knot. Then he picked up another piece of wood and placed it a finger's distance away from the first piece of wood.

, using the same method, tied the second long piece of wood.

"The left side is tied in the same way, do you understand?" Guan Yu took the tied wood to Li Mengxi and asked.

Li Mengxi took the wood, looked at it carefully, and suddenly realized.

It turns out that a floating bridge can be built using only ropes and wood.

Use knots to tie the wooden boards together and limit their positions, just like steps. At every short section, tie a wooden board to extend the length.

The knots are enough to hold the board in place without the need for iron hoops. Besides, even if iron hoops are used, the strength of the hoops may not be as strong as tying them directly with knots.

The problem of fixing the wooden boards is solved so easily.

The skills that working people have mastered in production and life are indeed extremely useful.

Li Mengxi scratched his head and asked again, "General Guan, you know how to tie a pontoon bridge, but can anyone else in the army know how?"

Guan Yu could not answer.

Although tying a suspension bridge seems very simple, most people can do it.

But there is no guarantee that everyone will do it 100%.

No matter how simple a bit of knowledge is, it is necessary to record it in plain text.

Especially the technology related to pontoon bridges belongs to military engineering technology and is very important.

Guan Yu's method of tying the pontoon bridge deck is very simple and practical, and Li Mengxi thinks it can be regarded as the standard technical method for building pontoon bridges.

I have to think of a way to write down the techniques that are difficult to describe clearly in words. It would be best if I could draw them, like the "Martial Arts General Essentials" with many illustrations.

Pictures can record much more information than words can.

A small knot may take a long time to explain, but the soldiers will not understand what it is about.

I recorded it in writing, took half a day to write, and wrote half a page of words, but the writing was still lacking in detail.

And if you draw a picture, even a small picture as big as a matchbox is better than a long paragraph of text.

For things that are difficult to speak clearly or write clearly in words, the pictures are guaranteed to be clear to the soldiers when they see them. Even soldiers who don't know a word of the words can understand what is going on at a glance.

The planks of the pontoon and the way they are fixed are not big problems.

But where does the rope come from? Is there any large rope in the army that is as thick as an egg, more than ten feet long or even longer, and is completely complete?

No.

This is great. How can we build a pontoon bridge without the ropes to build it?

There are many ropes of different thicknesses in the army, but to build a pontoon bridge you need a very long and strong rope that can carry carriages and horses. If the rope is not long enough and there is no long rope, you have to use a short rope to connect it, but this is the case

Since then, ropes made of short ropes must not be strong enough and are likely to break or the knots to loosen.

This chapter is not finished yet, please click on the next page to continue reading the exciting content! It’s okay if there are no problems, but if there are problems, it will be a big problem.

The carriage was walking on the pontoon, and suddenly the knot of a certain length of rope came loose, and all the food and wine in the carriage that were reluctant to eat fell into the river at once. Wouldn't it be a pity.

The loss of materials is nothing. If a person is walking and the pontoon suddenly breaks, if a person falls into the fast river, a person disappears without a trace, such as Guan Yunchang, who falls into the river during the flood season, he will suffer the same disaster.

The mighty General of the Five Tigers accidentally fell into the river and drowned because the pontoon bridge broke. Wouldn't his reputation be ruined for the rest of his life?

Don't say that Guan Yu has water properties. Even if Guan Yu has good water properties, if one day Guan Yu is hit by an arrow in his arm, the arrow injury has not healed, one arm cannot use strength, and he is wearing heavy armor, if he accidentally falls in

In the water, he must have drowned.

In short, no matter what, you must have a long and strong hemp rope, otherwise if there is any loss, it will destroy things and hurt people at least, or delay military aircraft at worst.

There is no hemp rope that is strong enough and long enough in the army. After counting this matter, Guan Yu and Liu Bei frowned.

When it comes to technology, Li Mengxi is the best at it.

Li Mengxi cleared his throat and asked Guan Yu and Liu Bei, two people from lower classes among the people, "How do you weave hemp rope?" Li Mengxi asked.

It is said that among the various princes in the late Han Dynasty, maybe Cao Cao didn't know how to weave hemp rope, and maybe Sun Quan didn't know how to weave hemp rope.

Because Cao Cao came from a wealthy family and was born into the carnivorous class. He had never penetrated into the folk, and his fingers were not stained with mud. He didn't know that folk technology was too normal.

As for Sun Quan, by the time he succeeded his father and brother and took control of the Southeast, he already had all the power in the world. Where would he have the opportunity and motivation to understand the details of folk technology?

Let’s not talk about Cao Wu, let’s talk about the two brothers Yuan Shao and Yuan Shu. These two men have been ministers for many generations. When Yuan Shu was defeated, the soldiers drank muddy water. Yuan Shu was thirsty, and the soldiers brought Yuan Shu muddy water. Yuan Shu refused to drink it and beat him.

Turning over the water bowl, he insisted on looking for honey water to drink. The soldier replied that there was only blood water at this time, and there was no honey water. Yuan Shu immediately vomited blood and died.

Such a pampered dandy, who pretends to drink honey water at a critical moment of life and death, is almost the same as a guy who doesn't eat minced meat.

How could someone like Yuan Shu understand folk production technology?

If Yuan Shu is like this, how much better can Yuan Shao be?

If you compare it carefully, it is actually very interesting. Among the princes of the late Han Dynasty, it seems that only the three brothers Liu, Guan, and Zhang were truly from the grassroots.

Although Liu Bei is a member of the Han clan, there are too many Han clan members, so the identity of a Han clan member is worthless. If you don’t see that Liu Ye, who is a Han clan member, is also the guy who built the Thunderbolt Chariot.

Serving under Cao Cao.

The reason why Liu Bei became Liu Huangshu was because Liu Bei was strong enough and capable enough to become Liu Huangshu.

Being a clan member of the Han Dynasty provided Liu Bei with some conveniences, but it was not because he was a clan member of the Han Dynasty that Liu Bei stood out in the late Han Dynasty. The two have nothing to do with each other.

Except for Liu Bei, none of the other princes named Liu, including Liu Biao and Liu Zhang, were closer to the Han Dynasty than Liu Bei. However, except for Liu Bei, the rest were unbearable.

Taking a closer look at the princes of the late Han Dynasty, it seems that there was really only one Liu Xuande who knew how to weave hemp rope.

Not only Liu Xuande, but also Guan Yu knew how to weave hemp rope, and even Zhang Fei also knew how to weave hemp rope.

Compared with other princes in the late Han Dynasty, Liu Bei's side seems to be very special.

Li Mengxi didn't know how to weave hemp rope. Li Mengxi was quite familiar with hemp rope. He had never seen it in his previous life. Li Mengxi remembered that it was the arm-thick hemp rope used on construction sites. There seemed to be some thin ties in the hemp rope.

To provide the hemp rope with stronger pulling performance.

There is no need to think about tying wire. This kind of thin wire was impossible to produce under the conditions of the late Han Dynasty.

The hemp ropes in the Han Dynasty could only be pure hemp ropes.

Li Mengxi asked, is the hemp rope made of hemp?

Liu Bei and Guan Yu looked at each other and laughed loudly when they heard this. They asked, if the hemp rope is not made of hemp, what else can it be made of?

"No, I'm asking, we have no shortage of hemp in the army. Can we weave hemp ropes that are dozens of feet long?" Li Mengxi asked with a puzzled look on his face.

"Why not?" Liu Bei asked.

"Then... how to ensure quality... Well, the hemp rope is related to whether the pontoon bridge is strong. A hemp rope that is tens of feet long cannot be woven by one person.
To be continued...