After visiting the ship-type schooner, Guan Yu and Ma Chao agreed that this magical artifact for transportation in the Gobi desert is obviously worthy of immediate large-scale construction and promotion.

Guan Yu was more cautious in his military management. He looked at the pool test to ensure that the car could drive slowly like a boat, but he always felt that he was still afraid of overturning. Li Su raised the wall of the car body panel a little higher.

Anyway, Li Su's calculation formula is already there: the carriage weighs 2,000 kilograms, the bottom is 6 feet wide and the side is 4 and a half feet high, which means that every step is increased by one foot along the long axis of the vehicle, the weight will be approximately 1.5%, which means that another 300 kilograms will be weighed.

Since the car can hold more than 15,000 kilograms of kilograms, it is a trivial matter to add more than 300 kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of kilograms of ki

After hearing this, Li Su couldn't help but persuade: "The rivers in the northwest are shallow and narrow, all of which are inward rivers. There is no wind and waves. It's more than half a foot to stay full of loads, and it can't be sunk. Besides, if you think the situation is wrong, you can just land on the shore and drive it to the shore directly.

Just now, you thought the wing board wasting weight, wasting wood, and increasing the physical consumption of loading and unloading goods. Now you are more aggressive than me. And a little taller, it is not convenient for soldiers to set up crossbows and shoot arrows in the carriage. Now, four and a half feet, people can expose their eyes to observe the enemy situation when they sit in the bottom of the car. They can make crossbows and shoot arrows when they kneel on one knee. If they are raised to more than five and a half feet, they will be too low to fire when they stand in front of their eyes, and they can only squat half a day. They are very tired, how can they fight?"

Guan Yu retorted: "The water flow is small, but when the wind is strong and the wind is strong, no matter how small the water is, it is possible to occasionally enter water. However, no matter how high it is, it is not conducive to combat, so add half a foot.

It is not comfortable to shoot crossbows on kneeling posture. There must be many food bags in the grain cart. When it comes to defending the enemy, blocking the food bags on both sides can set the defense higher and protect soldiers. It will be easier to pull two food bags underneath and sit on the food bags to shoot crossbows."

Li Su thought it was true that he really lacked the experience of practical command on the front line. After all, he was theoretical in design. He did not consider the issue of using grain bags as sand bags to block arrows in actual combat. He did not expect that the soldiers would sit on the grain bags and shoot arrows, adjusting the most comfortable height for himself.

Several people worked together to discuss some things, and Guan Yu and Ma Chao also provided many practical concerns, asking Li Su to find a solution (mainly Guan Yu proposed that, because Ma Chao didn't understand water battles either)

Li Su found that Guan Yu's opinion was really pertinent. For example, Guan Yu pointed out keenly that Li Su's design has a little danger in actual combat, that is, the center of gravity of loading is prone to unstable. Once one end is loaded more and the other end is loaded less, it is still easy to turn off.

Li Su also realized that his body shape is more considered and designed based on the stability of a car, and did not fully consider the natural stability of the ship design.

After the competition, Li Su slightly adjusted: the bottom of the carriage changed from the flat structure at the beginning to a slightly concave curve to the middle. Also, there are also a slightly concave curve to the middle on the left and right sides to ensure that the center is lower and lower. In this way, when loading, the goods will easily slide naturally to the middle of the carriage, and only when the center is full will stay around, ensuring the heaviest in the middle and overlap with the center of gravity, so that you will not be afraid of capsizing.

Amphibious things are indeed not so easy to create. Li Su passed the pool test by himself, which does not mean that he can actually drive it in the Tao River and the Yellow River.

After all adjustments, the car was finally more perfect. As for the problem of increasing the side plate and loading and unloading more laboriously, Li Su made the rear compartment plate into a switchable type, just like the unloading plate at the rear of the car truck in later generations that could be put down.

Of course, the stern of the boat was originally raised upwards, and there was a slope in the car, so that the unloading would be directly pushed up along the slope. Li Su also made some waterproof designs on the tailboard to ensure that there would not leak under normal circumstances. Even if water seeped, just let the soldiers scoop out or drive ashore.

The reason why this hole is opened at the rear of the car instead of the front of the car is that it is considered that when the front of the car is in the water, it has to break through the waves and bears a relatively large water pressure. The rear of the car is originally the place with the smallest water pressure, and the risk of slight leakage is also the least.

Finally and most importantly, Li Su learned from Guan Yu that everything should be done by experiments as the criterion, so he asked the craftsmen in the camp to spend two or three days to build dozens of experimental models according to the new design. After one was built, he would be taken to the Tao River for trial sailing. Each vehicle had to drive fifty miles downstream and then drive back fifty miles against the current, check the yield rate, confirm whether the design should be fine-tuned, and finally mass-produced on a large scale.

However, considering the time issue, Li Su didn't have much time to delay, so he gave the project DEAD-LINE. On the first day of May, all carpenters in Longxi should concentrate on mass production of such vehicles and ships, and strive to build thousands of vehicles within half a month, so as not to delay the battle in mid-to-late May.

Of course, considering that the logistics of this car was not necessarily needed when fighting Jincheng at the beginning, the investment could actually be a little later.

...

"Boya, you should have taken out this thing early. You are still too young and unreliable to do things. Why do you think the things you took out can be mass-produced directly? Isn't this insufficient practical training? Now, by early May, most carpenters are idle, only the few who make samples have work to do. The army is imminent, and the craftsmen are in charge of corvee labor, so they must make full use of it."

Seeing the revised design plan being taken for trial production, Guan Yu felt a little regretful when he thought that the carpenters were unable to enter the full-time start-up state because they were temporarily unable to enter the full-time construction.

He felt that Li Su's IQ was nothing to say, but his practical experience was still insufficient, and he was a bit of a talk on paper. Everything Li Su said was far-sighted, and he still needed a pragmatic and down-to-earth colleague to help him make up for the details of the executive level.

Of course, this is already very good. If you have a specialty in your profession, no one can be omniscient and omnipotent. Strategic planners are originally imaginative and need an executive to implement them.

Unexpectedly, Li Su was not at all concerned about this accusation: "What Chief Yun said is that it does take time to run-in and try production of this thing, but I already have another allowance and will not let craftsmen and corvee labor stay idle - have you forgotten? I just said that there are several things that can be used during the Western Expedition, and coincidentally, these require a large number of woodcutters and carpenters. All the corvee labor collected this year have to be removed from ghost money, cut off the hillside of Qilian, Longxi for more than ten miles, and all the wood can be used."

The hard labor punishment in the Qin and Han dynasties was divided into five levels. The ghost rice was the second highest after Chengdan pounding (men Chengdan/construction migrant workers and ghost rice/cutting, women pound rice and Baican/sieving rice). When the people were collecting corvee labor, the labor intensity was also divided according to this. The higher the intensity, the shorter the service period.

For example, the average corvee service period is worth one day and a half, and the ghost salary is worth four days. The third-level military farming is normal for one day, and the Si Kou, who has the lowest labor intensity, can only be counted as a two-day corvee service period (Si Kou is standing guard as a security guard, and because he does not have strong physical labor, his salary is low)

Since Li Su became a local official, because he liked to build water conservancy and build machines, the city and ghost wages and labor service were all collected every year, and Shushan was left and Longshan.

Guan Yu has become accustomed to Li Su's rhythm. When he sees Li Su's expression, he knows that it will be impossible to get rid of the mountain this time.

"Tell me, what else? Let's listen to it at once."

Li Su clapped his hands, and several soldiers carried several machines up. Li Su pointed and said:

"It's not a new thing. It's been available two years ago. The wooden lathe built by Aliang six months before the Northern Expedition Li Jue. You may not have paid attention to it, but you have definitely used the weapons made by this thing. Any gun rods that our army concentrated on in large quantities since the previous year was produced by this thing.

However, if I dare to take it out and show it up again, it will definitely have a new magical use - not only the machine was invented, but also the method of use is invented. We cannot focus on objects and over people, but rather on machines and over ideas. First of all, I have improved the machine this time. The blade is smoother, the cutting edge is longer, and it is half oblique and half flat. Every time the pedal turns the shaft, the cutting speed is faster, and it is suitable for cutting things with finer and less resistance."

Li Su said this, other viewers did not see the real thing directly like Guan Yu, so of course it was not easy to understand.

But just one metaphor, everyone will understand it - Li Su's improved wooden lathe turning knife imitates the pencil sharpening blades that we used to sharpen pencils when we were young!

It is not difficult for people with a little common sense to imagine how much cutting a pencil sharpener is greater than that of a metal machining lathe. For small objects with thinner thickness and thinner poles, the processing speed will naturally surge.

Using this thing to build arrow shafts is naturally faster than Fa Zheng's camp at Wuzhangyuan, and building a Zhuge crossbow arrow.

More importantly, the structure of the pencil sharpener reduces the weight of the machine itself a lot, and the volume is smaller, making it easier to carry and transport it away. This is not important when Fa Zheng guarded Wuzhangyuan Camp, because Fa Zheng was fighting camp defense battles. The machine was placed on the plateau, and the trees were cut down on the spot and made into wooden sticks to make arrows. There was no problem with machine transportation.

This time, Li Su asked Guan Yu and Ma Chao to transport the cutting lathes in a caravan. The machine itself was reduced from 300 kilograms to 100 kilograms, and the optimization was obvious.

Li Su said, pointing to a Zhuge Crossbow that Guan Yu was already familiar with, and said, "When Li Ling brought 5,000 infantrymen to the frontier, and encountered 80,000 Xiongnu sieges. If he suffered a loss, he would suffer a loss because of the unfavorable logistics and could not be replenished. He would have 500,000 arrows in one day.

Now that we want to pursue Guo Si, we must make the worst plan. Even if we fail to kill Guo Si in the previous few battles in the future, we must be mentally prepared to chase Juyanhai like Huo Qubing.

If this is the case, Guo Si joined forces with other Qiang tribes who were afraid of the Han Dynasty and re-controlling the Western Regions to consume our army. I am afraid that when the arrows are gone, our army will be in danger! Therefore, the replenishment of arrows must be as important as military rations. If we bring arrows, it will not be enough. Then bring more Zhuge Crossbows and this kind of arrow-making machine, specializing in sharpened wooden sticks, without iron arrows, for the use of the big arrow-consuming customers like Zhuge Crossbow.

Although there are no trees in the Gobi Desert, until Jiuquan County and Jiuquan County, we marched on the left side against the Qilian Mountains, and there are a large number of suitable trees available at the foot of Qilian Mountains. No matter how many arrows we consumed during the attack on Wuwei, Zhangye and Jiuquan counties, we can make up for them on the front line."

Guan Yu quickly understood that Li Su's plan was based on the actual situation. Before he reached Jiuquan, he had to take the machine and cut down trees and cut them there to replenish arrows. But after arriving at Jiuquan, if Guo Si could still run, he would have to be slightly repaired.

At that time, I would probably stay in Jiuquan County for a few days, and make arrows and stuff the baggage, and then the lathes will be left in Jiuquan City. The subsequent army will go straight to Juyanhai without production equipment.

It's a really meticulous plan.

Just when Guan Yu thought all this was enough, Li Su followed the idea just now and brainstormed him.

"Since I decided to bring these wood-cutting lathes on the road, I thought of a small improvement that goes beyond the ordinary - after our army fought with Li Jue last year, didn't the enemy fully learn the design of our stirrups?

Even if Xiliang is poor and Guo Si can't afford metal stirrups, he will definitely suffer losses and try to make up for it. I think the cavalry in his army will definitely not lack wood-carved hard stirrups this year. As for the wooden saddles of Gaosan Bridge, it will definitely be fully popularized. At that time, the cavalry of the Xiliang cavalry will probably be no less powerful than our army.

I also said before that crossbows can only be used to guard against enemy cavalry shooting and fighting, so that the enemy dare not fight with us and force them to fight in close combat. However, after entering close combat, the cavalry who is good at sprinting at high bridge saddle spears is not easy to deal with. In previous years, the old Han army system, most of the cavalry rifles were eight inches to two inches, and the rifles of the array of broken cavalry were only six inches long. Now that the enemy's cavalry sprinting has become stronger, our best countermeasure is to lengthen the rods of the infantry gun array-"

Li Su's words involved a common sense, that is, Zhang Fei's "Zhangba Snake Spear", which is actually not 18 feet long. That one is too long and cannot be wielded at all. It is not fast enough to be flexible enough. The thing is actually 108 inches. Lu Bu's Fangtian Painted Ridge is only 12 feet long. That is actually not short. Zhang Fei's weapon is 2.5 meters tall, and Lu Bu's weapon is 2.8 meters tall.

It is precisely this confrontational environment that has prevented the infantry counter-cavalry spears from growing too much. The longest rifle is only 16 meters or less, only less than 3 meters or 5 meters, which is already very rare. More mainstream ones have just been above 3 meters.

In the earlier Western Macedonian phalanx, Greek spearmen were often four meters, four meters and five meters. It can be seen that the intensity of the cavalry of the East was not that high, so there was no "arms race escalating each other."

The Japanese who studied in China until China entered the late Song and early Ming dynasties, there were only "two guns" to "two and a half rooms". The Japanese "room" was about one square 1.6 meters, so the two rooms were only three meters and two guns, two and a half meters and four meters.

So much so that in the glorious game "Nobunaga's Ambition", Nobunaga's father-in-law Saito Misan invented the "Three Guns" (4.8 meters), Nobunaga inherited and further extended it to "Three Guns and a half" (5.6 meters). It also made a special technology called a daimyo, claiming to have made the combat power of the long spear soar.

Of course, Guan Yu also knew that "the enemy cavalry lance sprinting is stronger because stirrups can also be replaced with a six-foot spear as long as infantry." Infants should be more "one inch long and one inch stronger", so that they can attack before being stabbed to death by a cavalry lance.

But the longer the gun rod, the heavier it is. If it is not thicker, it will easily break. The current metal gun head is not suitable for longer gun rods. Once the torque becomes larger, the gun head itself is easily deformed. (Of course, Guan Yu does not know any torque analysis, he just thinks so based on common sense of combat experience)

"The gun rod suddenly lengthens, it's too easy to break? It's not suitable for the gun head." Guan Yu said with concern.

Li Su took out a quadrangle spear head that he had tinkered with Zhang Yi, a left school student, when he returned to Yizhou last year. He proudly wanted to ask Guan Yu to observe, but after thinking about it, it seemed that Ma Chao knew better about the spear, and he temporarily handed it to Ma Chao.

Ma Chao knew the goods and noticed its value as soon as his eyes lit up: "The spear tip is made of four edges, and the cone tip is extremely sharp. If it is used to break armor, it is probably extremely sharp and extremely tough. He is not worried about deformation or breaking at all. Even if it is weakened, it can easily hurt the enemy of the skin and armor. The four edges are sunken and bleeding to prevent the spear tip from being stuck by the skin, flesh, muscles and bones. The resistance to further pricking deep after entering the flesh is smaller.

It’s just a pity that the damage of wielding and cutting is even lower, and we can’t kill the enemy by relying on the shaking spear flowers - but for ordinary soldiers with poor martial arts skills, we didn’t expect them to shake spear flowers well, just assassinate them. I don’t need it.”

For generals with high martial arts skills, there is no need for improvement in this regard. They value the flexibility and versatility of weapons, and their martial arts can fully utilize their functions.

Four-pyramid grab is used for novices who are disciplined and have no marksmanship.

After Ma Chao said this, Guan Yu suddenly came back and slapped his thigh: "What a wonderful thing! Since the gun tip can be pierced more easily than the old gun, and is not afraid of breaking and deformation. With the wooden poles that can be replaced, you are not afraid of being damaged at all - Boya, you must be counting on those wooden stick-cut machines. If you break any gun sticks, you will cut down trees along the way, and replace the intact steel gun tips on the new wooden handle, and treat the gun stick as a consumable."

Seeing that Guan Yu had seen through and solved the mystery, Li Su had nothing to keep in touch, so he did not hide his complacency: "That's right, that's what I mean. In this way, it doesn't matter if we lengthen the gun by five feet or even more.

Finally, I asked Zhang Yi to improve some logging saws to cut the trees from the direction along the longitudinal axis of the trunk, so as not to waste materials along the grains and reduce the processing yield rate. Of course, these are not worth mentioning, and the improvement is not very big."

Including Zhuge Bird's arrows, he currently creates good luck in Yizhou, and the tails are also slightly sunken and hollow. If necessary, he can put the steel arrows outside the sharpened wooden arrows and reuse them, and only use these high-destructive reserve arrows in the most intense battles. After fighting a battle, you can collect undamaged iron arrows and replace them with new arrow shafts.

Ma Chao, who was next to him, was attracted by Li Su's new gun head and new gun rod throughout the whole process, and was eager to try it out. Li Su brought mainly machine and machine drawings this time, but there were also some samples of ultra-long gun rods that had been processed, so Ma Chao could try it out directly.

He first took a conservative two-meter long spear rod and waved it to assassinate it. Li Su was amazed at the sight - Ma Chao could actually hold the tail end of the two-meter long spear rod with one hand, and then pushed it forward and stabbed it out fiercely, and shot it horizontally, and always stuck it on a height horizontal line. The center of gravity of the gun body seemed to not sway up and down.

"It's amazing, it's worthy of Ma Chao's marksmanship. This power is also stable and ruthless." Li Su secretly said that he had seen Zhao Yun's marksmanship. In comparison, Zhao Yun's martial arts are of course not inferior to Ma Chao, but Zhao Yun is good at being light and meticulous, while Ma Chao is more ruthless and decisive.

Li Su just admired it for a while, until Ma Chao tried to get a two-four-meter gun, he did not stably with one hand and swayed up and down. However, after Ma Chao changed his hands to hold the gun, he quickly stabilized again.
Chapter completed!