The advisors have been discussing all day from yesterday to today, and everything that should be discussed has been discussed. The existing horses travel ninety miles a day, which can support Linzi, but they can't go any further. There is also a very serious consequence of traveling 90 miles a day: the loss of horses will increase, and in order to reduce the loss of horses, more concentrate will have to be fed, which will increase the logistical pressure.

Winter warfare is a disaster, which requires more corn, more dry firewood, more weed, more horses and cattle. If you don't fight in winter, you will face the front and rear attacks of the coalition warships - the big river flows eastward until the Gaotang is only 90 degrees north, and the Gaotang is one hundred and fifty miles north of the Pingyin fortress, once the coalition forces land from the Gaotang, they can directly go south to end the rear of the Qin army;

Laizhou Bay is 150 miles north of Linzi, and if the Qin army pulls out Linzi and continues to advance eastward towards Weishui and Muling Pass, the Chu army will also end the rear of the Qin army after landing from Laizhou Bay. Because of the existence of Mount Tai, the Qin army could not choose other paths, and must first pull out Linzi before advancing eastward.

In addition, there is also a road in Ludi that can be directly inserted into Linzi, that is, the Wenshui that starts from Mount Tai and flows to Ludi and the Zishui that starts from Mount Tai and flows to Linzi intersects the valley. In 684 B.C., the well-known Cao Di controversy, the Battle of the Long Spoon, took place on this road; In 500 B.C., with Confucius as a courtesy, the Luqi Jiagu Huimeng, which made Qi Jinggong return to Wenshang, also took place in Zhuqiyi on this road.

Fortunately, this is an ancient road built hundreds of years ago, and even if it is not damaged, it cannot support the logistics supply of more than 100,000 people. If the Qin army seals the pass in the Qi realm, compared to the first two, this ancient road that can go straight to Linzi is not very dangerous.

It is safe only in winter, but in winter the attack cannot be based on food to the enemy, and it is necessary to carry dry firewood by itself, which increases the logistical burden. 120,000 horses were not enough, so Wang Jian had to ask about the servant cow.

Wang Jian asked the servant ox, and Liu Chi had to answer honestly: "The servant ox can carry 6,000 catties per car, but if the servant ox is transported to Linzi, it will take 10,000 cars per day, and the servant ox will only travel 60 miles a day, so it will take 16 days to go back and forth......."

Speaking of this, Liu Chi couldn't go on. Since 10,000 ox carts are needed to arrive every day, 160,000 carts are required for 16 days round trip. One cart of four oxen requires 640,000 head of servant oxen. Considering the huge amount of food that the servant cow eats, this seems to be an astronomical amount.

"10,000 cars a day?" Wang Jian was also taken aback by this number. The horse-drawn cart only required 1,820 carts, but the ox-cart cost 10,000 carts.

"Yes, yes." Liu Chi said. "The servant ox eats a lot of food, and it only travels 60 miles a day, even if it is 6,000 catties in a car."

"Four servant oxen, carrying six thousand catties?" Wang Jian silently recited the number.

"Yes." This time, Liu Chi did not have a way to hand over the wood, and he repeatedly confirmed the transport of the servant ox. "There are oxen that are heavier than horses, and there are those who are not as heavy as horses. Although the ox is strong, the body is not strong, and there are not many horses. ”

The cattle of the pre-Qin Dynasty are mostly "Mu Qin" cattle, what kind of cattle is the "Mu Qin" cattle? This is a cattle breed in the northwest region, or can be called Qin cattle, Qinchuan cattle. The weight of Qinchuan cattle is generally about 300 kilograms, the weight determines the pulling force, the normal pulling output rate of the cow is about 5% higher than that of the horse, but the weight is similar, more than 5% is also limited, but it is more than 15 kilograms of pulling force.

A 300-kilogram horse has a pulling force of about 40 kilograms, and a four-horse pulling 1,000 kilograms; The pulling force of a cow is around 55 kilograms, and the four oxen are pulling 1,500 kilograms, with 1:6.25 = pulling force: pulling weight ratio, the four oxen should actually pull 1,375 kilograms, and the pulling of 1,500 kilograms is already overweight.

"Maybe, maybe......" When Liu Chi finished speaking, Wang Jian was silent, and a strategist wanted to speak but had some concerns.

"Words!" Wang Jian immediately stared at him, hoping that he would have another idea.

"The general, the villain Zhen Ping, the villain swam in Minshan when he was young, and he heard that there were local kui cattle. Its oxen weighed thousands of catties, and its body was like a cloud...... "As Zhen Ping spoke, the other strategists craned their necks to look at the curtain on the top of the shogunate. Ox, that is a mythical thing, even if there is, it is also in Minshan, Minshan is the land of Shu, and now it is owned by the Chu people.

The strategist is like this, Wang Jian is also a little anxious when he listens to it, "Where are there tens of thousands of oxen?" ”

"General Yu, although there are no oxen, but my Great Qin also has Qin cattle weighing thousands of catties, if the National Governor's Mansion can select Qin cattle weighing more than three thousand catties for transportation, it may not be lost to the calf." Zhen Ping is a young man, he mentioned the ox last night, and then was ridiculed by everyone, but he didn't expect that now he was mentioning the Qin cow weighing more than 3,000 catties.

"Does this work?" Wang Jian stroked his chin and thought.

"The villain thinks it's possible." Zhen Ping replied. "The villain looks at the iron horse of the Jing people, then looks at the iron horse of Daqin, and then looks at what the Jing people say in the Dachu news, and knows that the horse is not tall and can bear the armor, but the weight can bear the armor. In this way, the heavier the ox, the greater the force, if there are more than 3,000 catties of Qin cattle, a cart can be pulled by two oxen instead of four oxen, so, the cattle are less. ”

"This ......," Wang Ao also listened to Zhen Ping's words, "so the Governor's Mansion wants each county to select heavy cattle?" ”

"Yes. The weight is strong, although there is more food, it is less than four oxen. When Zhen Ping said this, he took out a piece of wood from his arms and said, "This villain has calculated the number, please take a look at the general." ”

"Every car eats ......" Wang Jian subconsciously took it, looking at the numbers on it, what surprised him the most was the last number: "...... Up to 5,500 cars a day? ”

"Yes." Zhen Ping said, Liu Chi and the others on the side were already staring. "More than 88,000 ox carts are enough. Two oxen per cart, 200,000 heavy cattle are enough. Although he eats 120 catties of herb every day, he is also less economical than the former. ”

"More than 3,000 catties of servant cattle, this cow needs 200,000 heads, and it is difficult." Liu Chi was unhappy, Zhen Ping didn't tell himself first, but directly told Wang Qian. "Yes, how can it be proved that two oxen can save 6,000 catties?"

"More than 3,000 catties of cattle are twice as strong as horses, and four-wheeled carriages come from Jing Kingdom, and Jing Guo pulls 1,000 catties from a horse, so four horses pull 4,000 catties. However, the Jing people are rarely dragged by servant oxen, not necessarily one ox can pull 1,500 catties, or one ox can pull more than two or three thousand catties......"

The four-wheeled carriage was transported from the Chu State, why the Chu people used four horses to pull four thousand catties, and the Qin State did not know the principle. Why did the Chu people drag 6,000 catties with four oxen, and the Qin State did not know the principle.

The principle and parameters of the pulling force, the pulling weight, and the coefficient of friction in the case of various roads (wheels) are known only to the Operations Department and the Armaments Department of the Great Sima Mansion. Although there were tests, this is what Xiong Jing asked for from the beginning - this is how the internal regulations of the PLA during the civil war were clearly stated, and then because of the controversial history of Chinese field artillery, it was posted. As for the cow's pulling strength, he basically sets the 15% body weight pulling formula.

Knowing how to do it, but not knowing why to do it, this is the situation that Qin Jun is facing at this time. Zhen Ping figured out some principles, so he suggested that two heavy oxen should be dragged instead of four.

"Father, whether you can do it or not, you can give it a try." Wang Ben was fearless and had no rules in his head, he was more inclined to accept Zhen Ping's suggestion, and the result of this was that 200,000 cattle and 12 horses could support the battle to destroy Qi.

"If that's the case, let's try it in the next few days." Liu Chi and Zhen Ping were still arguing about how much the servant cow could pull, and Wang Jian spoke.

"General, transportation is a matter of years and months, but this is only a few months away from Vaqi, how can you try it?" Liu Chi did not agree to the experiment, because it was too late. "Our military marquis, spy scouts, all say that the Jing people drag 6,000 catties with four oxen, and the Jing people are like this, there must be a way, how can they change it wantonly? If the weight of the war is too heavy and the servants and cattle die, what can I do? ”

"This matter should be taken seriously." Wang Ao originally supported Zhen Ping, but when he heard Liu Chi's words, he felt that what he said was not unreasonable. "Or first ask the Governor's Office to select cattle weighing more than 3,000 catties in each county, and then ......"

"If this is known to the Jing people...... I'm afraid of losing its secret. "There are also humanitarians, who are a few of the shogunate's military strategists. They don't think about logistics, they think about offensive battles. The large-scale selection of servant cattle weighing more than 3,000 catties in counties and counties across the country will inevitably be intercepted by Zhibisi. Once intercepted, the Jing people knew that the Qin army was preparing an offensive campaign.

The words of the strategist caused a quiet moment in the military curtain. Wang Jian did not say anything about the test, nor did he say that he would ask the Governor's Mansion to select heavy cattle in the counties and counties of the country first, but waved his hand to let the strategists retreat, leaving only Wang Ao, Liu Chi, Wang Ben and other three.

The map of the Qi Kingdom has been laid out on several cases in front of Wang Qian, and some important cities on it have become dirty because of too many touches. The mighty river flowed north in Gaotang, and Jishui went out of Dongjun to the east, dividing the entire Qi country into two halves, one large and one small.

The inability to use Jishui was the first reason for the logistical difficulties of the Qin army; It was impossible to invade the Qi State at the time of the corn harvest in September and October, because the supply of grain to the enemy was the second reason for the logistical difficulties of the Qin army. If it weren't for the threat of the Chu army's warboats, the Qi State would have been swept away by the Qin army long ago.

With five fingers on the map of Qi State, Wang Jian asked Wang Ao and Liu Chi, "Kill Qi in September, but what?" ”

Similar questions have been asked several times, and Liu Chi has not answered them every time. This time he wanted to answer but didn't answer, but Wang Ao replied: "If you can't go down to Pingyin quickly, you can't do it." ”

"But if I cut down in September, I will get corn, I will get dry firewood, and I will get weed!" Press the five fingers on the map to retract it, then wave it in the air. With the wave of his arm, Wang Jian's short beard under his jaw was also fluttering.

200,000 head of cattle and 120,000 horses, this is just logistics, there are 45,000 horses and 25,000 cattle in the army. He didn't study it in detail, but the amount of weed needed by so many cows and horses is massive, Dong County, Hanoi County, and Qinghe County, can these counties provide so much weed? He felt like he couldn't.

The warships of the Chu army threatened their own back routes, and also threatened the shipping routes of the counties to Puyang to transport grain and straw. Except for the neighboring counties, it is difficult for the rest of the counties to transport the grass here. If you don't have enough weed, what's the use of having cows and horses?

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