"The wooden wheel in the middle of this stone cart is equipped with a mechanism, which can pull the gun tip while turning the wheel, and at the same time, it can increase the weight of the stone projectile and turn it into a more powerful stone cart."

Although Cao Cao didn't understand, he still pretended to be suddenly enlightened, anyway, the last sentence that left manpower to increase the power was still heard, "Ziyang's wisdom is no less than that of Gongyi Ban and Mozi!" Then the wheels under this stone cart must have been made for easy transportation. ”

Liu Ye was so praised by Cao Cao, and he was also smiling, and immediately arched his hand and said: "The lord is wise!" The trebuchets of the ancients were cumbersome and could not be carried, and it was too time-consuming and wasteful to dismantle them once they were used. Therefore, Chen and his colleagues at the Xuchang Institute of Science and Technology installed four wheels under the trebuchet, which could not only be easily transported, but also used as an ordnance reserve. ”

"Your lord, you think that the ancients could only build it temporarily because trebuchets could not be moved, so they were used as one-time siege tools. Transportable trebuchets do not have to be destroyed, but can be transported to other places, either for the next siege, or for future use! Also, if you encounter an enemy surprise attack on the Catapult formation, you can also withdraw it under the cover of friendly troops! ”

In Cao Cao's eyes, Liu Ye's image at this time instantly rose a few feet, he really couldn't imagine that a small wheel could play so many tricks, and it could turn the trebuchet into an ordnance hoard like a weapon armor.

However, Cao Cao also raised another question: "Ziyang, can this wheel withstand such a heavy trebuchet when it is launched?" ”

"Don't worry, lord! The minister has already tested, if it is a stone bullet under 30 catties, the wheel can definitely withstand it. For stone bullets of more than 30 catties, you only need to pull out these wooden poles at the bottom of the stone cart and support them on the ground, which can increase the stability of the ground of the stone cart, and it is not a problem to launch stone bullets below 60 catties! ”

Cao Cao looked up to the sky and laughed: "God help me!" Breaking the enemy's canopy is just a few days away! ”

Subsequently, Cao Cao asked Liu Ye to lead the craftsmen in the camp to start building stone carts, and Liu Ye personally supervised them, so the craftsmen naturally did not dare to be sloppy. Ten days later, Cao Jun built dozens of stone carts.

On that day, the crossbowmen of the Yuan army changed shifts as in the past, and boarded the oars to prepare to release arrows at the Guandu camp of the Cao army, when they suddenly saw dozens of chariot-like things in the Cao army's camp. The Yuan soldiers at the bottom were not educated, and they didn't know that this thing was a bit like a trebuchet.

"Two dogs! Look at what Cao Jun is in this barracks? ”

"I don't know, but this thing looks a bit like a chariot."

"Ergou, look, the pole on the door of this thing can still move!"

"Damn, what's wrong with this thing on us? There's a stone on it! ”

The Yuan soldier called Ergou looked at Cao Jun's stone cart, and for some reason, he suddenly felt a chill behind him. He had heard from the storyteller in the village that the ancients had a kind of 。。。。。。 Throwing stones or something, you can throw dozens of pounds of stones out of hundreds of steps, but it has been lost. What the hell is this。。。。。。 No......

Before he could finish thinking about it, dozens of Cao Jun's stone carts fired dozens of stone bullets at them, and they were all forty jin level stone bullets, and the range was guaranteed to be enough to attack Yuan Jun, and the power should not be underestimated.

Listening to a few loud bangs, several of the wooden oars made of earth and stone were collapsed by these stone bullets, and one stone bullet fell directly into the oars, smashing several of the crossbowmen into a blur of flesh and blood, and bursting their brains.

The Yuan soldier, known as Ergou, swallowed a mouthful of saliva as if he were in a dream, and then quickly began to climb down the canopy, while most of the Yuan soldiers were still in shock.

"Shoot the arrows! Shoot the arrows! Shoot these Cao Jun thieves! ”

A man who appeared to be a lieutenant commanded the soldiers to fire arrows to stop the next wave of Cao's stone carts. However, there were two large planks on Cao's stone cart that were specially designed for the soldiers who used the stone cart to defend against arrows, not to mention the thousands of Cao soldiers in front of them with shields to block arrows for them. Only a few stray arrows hit the Cao soldiers who were using the stone carts, and they were not fatal.

"Adjust the angle, turn it up!"

"Reload!"

"Put!"

"That's it! Keep loading! ”

"Put!"

Under the command of Liu Ye, Cao Jun's team of stone trucks shot in an orderly manner, and soon destroyed the several zhang high stalks, and the 3,000 crossbowmen inside were all killed.

Yuan Shao was shocked, because the stone cart fired a stone bullet with a loud sound, Yuan Jun called it "Thunderbolt". At the same time, Cao Cao sent sergeants out of the camp every day to pick up stones, and then handed them over to stonemasons to polish into stone bullets, and every day a hundred stone bullets could fall in Yuan's military camp. However, these stone bullets are no longer forty-pound stone bullets, but twenty-pound stone bullets, because there are many stone bullets of this level, which is easy to replenish.

Cao Jun's stone cart dropped hundreds of stone bullets every day, which made Yuan Jun also feel the torture that Cao Jun suffered some time ago. Moreover, the power of stone projectiles is greater than that of arrows, and the shield may not be able to defend against it, and if it is prevented, it can hurt your arm.

As a last resort, Yuan Shao ordered the battalion to retreat ten miles back to avoid Cao's army's stone carts. However, Yuan Shao's retreat did not give up the purpose of conquering Officer Cao's camp.

Feng Ji made another suggestion to Yuan Shao, set up a "digging army", and sent them to use shovels to secretly dig tunnels and penetrate through Cao's camp from Yuan's army camp. As long as the tunnel is completed, the Yuan army can send elites to raid the Cao army from the tunnel, open the gate of the wall, and receive the entry of Yuan Shao's army.

Yuan Shao was overjoyed when he heard this, so he adopted Feng Ji's suggestion.

And the matter of Yuan Jun's digging of the pit was detected by Mingjingwei and reported to Cao Cao.

When Cao Cao learned about it, he laughed.

"Hahaha! Even this kind of little trick has been used, and he Yuan Benchu really did everything! ”

The generals were a little puzzled, and after Cao Cao explained Yuan Shao's intentions to them, they also laughed.

"Since Yuan Benchu made a move, then Lone should also teach him a lesson!"

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PS: It's finally finished, and I'm busy signing up for learning to drive this morning, and I'm going to get it from eight o'clock in the morning to half past eleven. In the afternoon, I went to the gym to exercise for more than two hours, and when I came back, I took a shower and rested for a while before I went to sleep, so the update was late, so everyone was more responsible.

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