Time passed quickly, and on the third day, while Yueyang was preparing to send troops, Yuan Shaojun's various ordnance was also urgently built.

Ma Qiang sat in a special seat on the city wall, ready to watch the battle, he looked opposite with a telescope, and found that Yuan Shao was also on a mound, looking at himself with the telescope he had sold him.

"Let's get started!"

Ma Qiang waved his hand to Yue Yang on the side, Yue Yang was wearing a special battle armor today, widening and fattening, otherwise he would not be able to stuff him.

Yue Yang lifted his stomach, picked up the horn in his hand, waved the battle flag in his hand and shouted, "Test firing calibration!" ”

More than ten steps away under the city wall, twenty trebuchets squeaked under the operation of the sergeant, and one by one the clay pots were placed in the leather pit, and then with the sound of the password, twenty clay pots flew into the sky, flew over the city wall, flew over the Qingshui River, and flew down seven or eight meters in front of Yuan Shaojun's mound position.

The clay pot was filled with colored lime, and when it fell to the ground, it suddenly became a clear mark.

Yuan Shaojun started with Yuan Shao, and everyone gasped.

What's the situation?

How can the throwing car on the opposite side shoot so far!

Yuan Shao felt that it was far away, and Ma Qiang felt that it was close.

He called Yue Yang and asked, "How did you get there?" If there is only this range, our trebuchets will not be able to cover the engineering troops at all! ”

Yue Yang patted his stomach and said with a smile, "Brother Xiaoma, don't worry, I just asked them to reduce the counterweight of the stones, and the rope was also shortened, so I shot closer, I'll see if I can test their firepower coverage." ”

Ahh

Also, when did you learn the word fire coverage from yourself ...

Sure enough, Yuan Shao over there felt that Ma Qiang was demonstrating, and thought that he couldn't show weakness like this, so he ordered Lu Kuang and Lu Xiang to fight back.

"Throw the car! Throw the car and test shoot!! Yuan Shao shouted loudly to the soldiers on the side, and Lu Kuang and Lu Xiang got the military order, and they were suddenly helpless.

It was impossible for them to shoot behind the opposite wall.

Originally, their design was to smash the pontoon bridge that might be built in the Qingshui River, don't look at it, there are twenty or thirty more steps, this range is not enough, and one more step can not be reached.

But the military order is like a mountain, and if you don't try, you have to try.

Yuan Shaojun's throwing car is a traditional Han army throwing car, fixed on the ground, one end of a long wooden stick is made into a spoon, one end is tied with a rope, put a projectile in the wooden spoon, and then the person pulls the rope hard, so that the stone flies to the enemy.

This kind of throwing car was not moved until Liu Ye under Cao Cao improved it, and it was renamed the Thunderbolt Car.

The biggest problem of traditional manpower throwing vehicles is that the range is not enough, there are too many people, and large throwing vehicles even need one or two hundred people to pull.

With Lu Kuang and Lu Xiang's order, hundreds of throwing cars set up on the edge of the mound were launched together, and the stone rain formed by hundreds of stones was still very deterrent, Yuan Shao nodded with satisfaction, such a stone rain, see if you Ma Qiang can be like .... What's going on?

When the stone rain reached the sky above the Qingshui River, there seemed to be something exciting in the river water, attracting those stones to fall one after another, only to see the water splashing in all directions, shaped like a lotus, but it was a scene.

"Hahaha!"

Seeing that the trebuchet on the opposite side couldn't hurt his side at all, the Qingzhou army on the city wall laughed in unison under the command of Yue Yang.

The laughter reached the other side, and Yuan Shao pinched the Zhaowu sword, his face turned red.

"Don't worry, Ming Gong, although the Qingzhou army's throwing car is better than our army, it is also limited, as long as they dare to cross the river, the range of our army's throwing car is enough to defeat it!"

Tian Feng's words calmed Yuan Shao's tense heart a little. sweet potato

yes, the other side can't hurt me.

Yue Yang on the other side, holding the data that had just been uploaded from the floating hot air balloon, and a group of backbone members of the engineering battalion were calculating rapidly.

"According to fundamental mechanics, if the air resistance and the height of the projectile from the ground at the time of launch are ignored, the throw distance S of the projectile should be equal to the square of the velocity at the time of launch and SIN twice the angle divided by the acceleration due to gravity.

The firing range of the first one just now...

Also take into account the impact of the current wind..."

If Yuan Shaojun's projectile is all about feeling and experience, then the Qingzhou Army is tested on physical principles and mathematical calculations.

Of course, this kind of calculation cannot be completely consistent with reality, after all, there are too many various influencing elements in reality, but it is definitely more reliable than feel and experience.

Soon, the calculation of each camera position was completed, Ma Qiang looked at the busy Yue Yang and others with satisfaction, and in the future, the thermal weapons became the protagonists, and this kind of artillery measurement technique that uses calculations to determine the opponent's gun position and his own shooting angle, and even the artillery measuring instrument and artillery radar developed later can make these ordnance exert the greatest power.

The eye-jumping method of aiming with your thumb is also fine, but it is not a royal technique after all.

"All cameras are in place! Ten shots in a row! Launch!! ”

"Bang!"

"Bang!!"

"Bang !!"

A round of stone bullets made of gravel and cement flew up with a whistling flight, flew straight over the city wall, and rushed towards Yuan Shaojun's position again.

This time, the stone projectile flew higher and farther.

Lu Kuang watched a stone bullet fly straight towards the place where he was throwing the car, and the whole person was so frightened that he couldn't move.

I was just a few steps away, and now if the wind helps, won't I be able to hit myself.

This is a stone of hundreds of pounds, and if it hits the body, it will be seriously injured if it does not die.

"General be careful!"

At the critical moment, the soldiers who had followed Lu Kuang since childhood pushed him away, and then Lu Kuang heard a snorting sound, and the whole earth shook.

This is not over, the stone bullets continue to fly up and down, fly up and down, Lu Kuang lay on the ground, and kept listening to the shaking of the earth, as if he was experiencing an earthquake, the sense of powerlessness and fear in the face of natural disasters is written in the genes of the ancestors of human beings since ancient times.

With the sound of a boulder falling like thunder, and the screams and wails of people, suddenly, Lu Kuang felt as if something had fallen in front of him, Lu Kuang opened his eyes tremblingly, only to see a stone bullet smashed out of a small pit and fell in front of him, less than a palm away from his head.

He could even smell the peculiar smell of cement on the stone bullets.

Compared with Lu Kuang, Lu Xiang is much happier.

Because all the stone bullets were smashed into the position guarded by Lu Kuang under the command of Yue Yang, the scenery on his side was unique for a while.

But looking at the tragic situation of his brother's position, Lu Xiang couldn't help but feel sad.

When the other side points the stone at you, you will have no power to fight back.

He stomped his feet, gritted his teeth, and asked the deputy general who was already crying on the side to guard his position, and under the pretext that he was going to report the battle situation to Yuan Shao, he turned around and ran to the mound piled up at the rear.

There is where Yuan Shao's home formation is located.