"Hahaha…"

Liu Sandao laughed. He pulled Liu Bian who fell to the ground, then turned around and said to Cao Shu: "Young master, if the hemp rope was replaced with iron rope and the rope ring was replaced with iron, then the stability of the stirrup would definitely increase a lot... There would definitely be no situation of falling to the ground."

Speaking of this, Liu Sandao thought for a moment. "This is easy to forge. I can forge the iron stirrup on the drawings within three days."

"Then I'll trouble Uncle Sandao."

Cao Shu nodded, very satisfied.

"Xiao Shuo, you are not authentic!" Liu Bian muttered his little mouth, slapped the dust on his body, and said, "If I had known that there was such a convenient way, please tell me in advance, it made me practice for so long..."

hehe!

Cao Shu smiled slightly, you are a cute little mouse, you want to be an experimental subject. Don’t you practice? Who will practice?

Thinking of this in my heart, Cao Shu patted his back. "Brother Bian, am I not going to give you a surprise? Tell me? Are you surprised or not?"

"Surprise you, a big-headed ghost." Liu Bian still had a calm face, as if suddenly, he thought of something. "By the way, you have this idea to pass the two levels of "Yu" and "Shooting" in the Imperial Academy assessment? You must have a way to cheat in the other four items in the Six Arts. Hurry up, tell me...tell me!"

Uh…this?

Cao Shu was slightly stunned. He was a pure and upright person. How could he be misunderstood as an opportunist? Tell a joke. Before traveling through time, Cao Shu never brought cheats in his college exam.

While laughing, Cao Shu, Liu Bian, and Liu Sandao left quickly.

Cao Shu did not forget to instruct Liu Sandao to make iron stirrups and send the finished iron stirrups and drawings to Cao Cao, the father of the Logistics Department of the Northern Army of Hanting. I think he must need this more.

Liu Sandao agreed in full voice.

Cao Cao behind the big tree could no longer wait...

Three days? He wished he could make the iron stirrups in the next hour, and for a moment? He couldn't wait!

...

...

In the Hanting Northern Army's military camp, the lights in the logistics department's large tent did not go out overnight.

All night, Cao Cao recalled the conversation between Shuer and Liu Sandao, and also remembered that Liu Bian stepped on a hemp rope, lowered his plate with steady hands, liberated his hands, bent his bow and arrow.

Because of this stirrup? A six-year-old child can condense his strength into one place and shoot arrows far beyond this age, let alone the strong and powerful Hanting cavalry?

"Iron stirrup, iron stirrup!"

Cao Cao kept repeating these three words. For about an hour, he picked up his pen and ink and tried to draw stirrups on bamboo slips.

First there is the hemp rope stirrup, then the cloth stirrup, and finally the iron stirrup...

Thanks to Cao Cao's in the Logistics Department.

There are not many different types of logistics camps, and there are debris everywhere, including hemp ropes, leather, and iron tools. Whenever Cao Cao had doubts, he could immediately find the corresponding debris to try again and again...

For this reason, he even moved his horse into the tent, rode himself on it, and used simple hemp rope stirrups to test the stability of the lower plate. He broke his hands and ran around the logistics department. What's more, the logistics tent was shot into a sieve by Cao Cao's arrows, and air leaked everywhere.

Speaking of which, the stirrup is not complicated at all, and Cao Cao is very smart.

After several times, he has already understood the principles.

With the blessing of this stirrup, an additional force point will be added to each of the legs, which will double the force point under the cavalry. When stepping on the stirrup, the legs do not even need to deliberately clamp the horse's belly, and the stability of the lower plate will naturally expand equally.

Fortunately, Cao Cao learned the "Hundred-Tech" course in the Imperial Academy. He drew seven drawings of stirrups throughout the night, each of which was improved.

He even made three simple sets of cloth stirrups with existing tools. After repeated experiments, Cao Cao made up his mind and rushed to the arsenal in the west of the city, entrusting the arsenal to produce a large number of iron stirrups overnight!

Cao Cao's heart was extremely urgent...

Although he did not understand the stability of triangles, he could feel that the stirrup invented by his son Cao Shu would definitely be a "magic weapon" for cavalry to scatter the plains!

...

...

Cao Cao was crazy.

Early in the morning, this news came to the Central Army's tent.

This surprised coach Huangfu Song and Lu Zhi who came to visit him.

This time, Lu Zhi came with the emperor's order, and he had an edict in his arms. The meaning of the edict was very clear, either going to the battle or getting out!

Lu Zhi was also forced to do nothing.

From the emperor to the court officials, the public said that they were going to go to war. Huangfu Song was not in the court, so he could not feel the feeling that "smoky stars" could drown people.

This time, if Huangfu Song continues to be stubborn, Lu Zhi has to replace him as the commander of the Northern Expedition Army and go to Yanmen with a tough bullet!

But before Lu Zhi could even make a clear attitude, he first heard the news that "Calligraphy Commander Cao Cao was crazy."

"General Huangfu? This?"

Lu Zhi hurriedly asked, after all, the Cao family made great contributions to being able to gather so many armaments this time. Even if you look down on Cao Cao and want to suppress Cao Cao, you can't drive others crazy, right?

How did Lu Zhi explain this to the Cao family? How did he explain to Cao Shu? It turns out that you raised money for me, but I drove your father crazy? This is not kind enough.

"Nothing!" Huangfu Song waved his hand. "Mr. Lu, don't you know my character? It's fine in the court, but in the military camp, I can't rub a grain of sand in my eyes!"

"I think you made things difficult for Cao Cao because of his origin!" Lu Zhi retorted...

"So what?" Huangfu Song didn't hide it. "You and my party member? Are you still less oppressed by eunuchs over the years? Eunuch Cao Cao raised his grandson and the eunuchs? How could I give him a good face, let alone him... he is not a fuel-efficient lamp!"

"Where does this come from?" Lu Zhi asked anxiously...

Huangfu Song then told Lu Zhi all the two disputes with Cao Cao and the matter of sending him to the logistics department and not entrusting them to the utilities...

"You! You know how to observe your words and expressions in the court. Why is this military camp so stubborn?"

Lu Zhi stretched out his index finger and pointed at Huangfu Song and scolded... "If Cao Cao had any problems, it would be difficult for him to explain not only to the Cao family, but also to His Majesty!"

"I just talk in the court, but I'm going to be the ones on the battlefield!" Huangfu Song was still stubborn. "I am the commander of the three armies, just command the army, no matter what else!"

Lu Zhi simply stopped talking to Huangfu Song and turned around to ask the pawn.

"How is Cao Cao doing now? Why are he going crazy?"

"Report to Lord Lu." The young master bowed and said in a hurry. "Last night, the commander of the Cao Cavalry returned to the camp very late, but he didn't sleep all night after returning to the camp. He stayed in the big tent of the logistics department with his lights on his face. He smiled at the sky, frowned and roared, and even moved his horse to the big tent. What's more, he rode his horse out of his hands and ran away on his horse! Just like, the commander of the Cao Cavalry went crazy!"

……
Chapter completed!