Li Yanqing and others looked carefully and found that twenty high-rise vehicles were approaching. Because they were a little far apart, they looked like weeds in the wilderness, and the details were not clear.
Song Army cavalry ran past from time to time, looking like an insect running past the weeds.
"This thing is very tall."
"Yeah, it's too far away, so it's hard to tell how high it is."
After waiting for a while, the high cart approached, and Li Yanqing and others could see a lot clearly. It was indeed very high and very large. It was pulled by more than a dozen cows and moved forward slowly. Behind the high cart, there were two or three hundred An ordinary car, with people sitting in it and full of things.
"Is it a car?"
"It's not like that. The car is indeed that high, but it's not that big."
"Linchong Lu Gongchao? The Song Dynasty actually built such a chariot? I heard that the last time they used this chariot was when they attacked Taiyuan and the Northern Han Dynasty in the early years of the founding of the People's Republic of China."
"Linchong Lu Gongche? It doesn't look like that." Li Yanqing shook his head slowly.
"I, Daxia, copied a copy of the "Seven Books of Martial Arts" from the Song Dynasty and kept it in the Privy Council. I was lucky enough to see it once when I was in Xingqing Mansion. There is a record in the book that Lu Gong's chariot is several feet high and long. It is dozens of feet long and has five levels. There are ladders on each level to go up and down. The vehicle can carry hundreds of soldiers. It is equipped with crossbows, guns, halberds, knives, spears and other soldiers, as well as wood-ramming and other equipment to destroy the city wall."
Li Yanqing pointed to the twenty cars in the distance, "Look, it's not like what's described in the book."
"Could it be a new siege tool made by Song craftsmen?"
"It's possible. The craftsmen of the Song Dynasty have exquisite minds and superb skills. It's possible."
"No matter what it is, it can't fly over this city wall. Let's stick to the city wall and give the Song army a good look!"
"As you command!"
The twenty cars were getting closer and closer, and Li Yanqing and others could see them clearly.
It is about three or four feet high, two or three feet long, and more than one foot wide. There is a long wooden pole about four or five feet long, which falls at the back like a tail. A large box is hung on a short pole in front. Like an enlarged scale.
At the back, there are two large wheels that are as tall as a person.
This behemoth had twelve high wheels and, pulled by more than a dozen cows, slowly walked into the gap between the Song army's formations.
Less than three hundred steps across the city wall, twenty cars stopped. Dozens of people gathered around each car and started busy.
The cow was taken away, and twelve symmetrical legs were attached to the car, which were grabbed directly from the body of the car to the ground. From a distance, it looked like a very large scorpion.
Li Yanqing and others began to guess what kind of weapon this was, and they started talking about it.
"Could it be a trebuchet?"
Finally someone came up with an answer that is very close to reality.
The scene became very quiet.
A general said sarcastically: "How can there be such a big trebuchet?"
The others looked at each other and nodded in agreement.
Everyone has seen the trebuchet. The Xia army once had a Poxi army, which was composed of hundreds of camels. The cyclone cannon carried by the camels was a small, steerable trebuchet.
However, its lethality was not ideal, and it was expensive to build. Therefore, the Xia Army, which was becoming more and more embarrassed, had already canceled this army.
"If it is really a trebuchet, its power must be amazing. Prepare all kinds of planks and stones immediately. If the city wall is knocked down by the trebuchet with huge rocks, the gap will be filled immediately."
2k
"Follow the order!"
Su Xie stood behind and watched the sergeants and craftsmen unfold the trebuchet.
These twenty trebuchets were developed by him, who was good at mechanical manufacturing, based on Zhao Si's sketches and finally finalized and manufactured.
Its full name is a counterweighted treadmill trebuchet. All the parameters are in his mind.
It is 12.6 meters high, 8.5 meters long and 4 meters wide.
The long pole is 14.2 meters long, and the short pole is 2.2 meters long. The counterweight box can hold twelve tons of counterweight. Now the soldiers are removing rocks weighing fifty kilograms each from the vehicle and putting them into the counterweight box.
Fill inside.
At the bottom is a 4.8-meter-long chute, and above it is a sloping plate with a low front and a high back, which is called the ammunition position. Below the ammunition position are two rows of rollers, installed on both sides of the chute.
There are soldiers cleaning and lubricating the chute. There are also other moving bearings, and soldiers are also lubricating them.
At the top of the long pole leaning against the ground, a soldier tied a standard long rope between the pole and the ammunition bag, checking its firmness back and forth.
"Brother Ji Sheng, the ammunition is here."
Su Xie turned around and saw Xu Lin directing everyone to slowly drive the ammunition truck over.
The car was loaded with dark round cans, separated from each other by soft haystacks. The round cans were more than one meter high and too thick for one person to hug.
Su Xie knew that there were two hundred kilograms of kerosene in it. The kerosene was distilled and refined from the black oil in Yanzhou. This black oil was exactly what Xu Lin's teacher Shen Mengxi wrote in "Mengxi Bi Tan"
"It's the kind of oil that comes out of the ground and can spontaneously ignite."
Su Xie didn't know what other things were mixed in the outer layer. That was Xu Lin's specialty, who was proficient in chemical engineering.
"Carry it with care. This thing is flammable, explosive, and extremely fragile. Be careful!" Xu Lin shouted loudly from the side. He saw the soldiers taking down a cart of four cans of ammunition and putting it aside.
Just feel relieved.
"Brother Ziqi, how much ammunition did you bring this time?"
"Brother Ji Sheng, the officials have said that if you have the chance, you should have a real fight. So I brought all the stocks, a total of three thousand rounds."
"Three thousand rounds!" Su Xie exclaimed, "Brother Ziqi, you are really crazy."
"What is this crazy thing?"
"Do the math. We don't include the innermost explosive. One round of ammunition contains two hundred kilograms of kerosene. Three thousand rounds equals 600,000 kilograms of kerosene. According to the new weights and measures of Gokuyuan, that's a full three hundred tons of kerosene.
, how big is Liangzhou City..."
"No, brother Ji Sheng, we won't project these three hundred tons of kerosene to the entire Liangzhou City, and your trebuchet can't cover it. It's just this one area," Xu Lin pointed at the south gate tower of Liangzhou City and drew in the distance
Made a circle.
"In such a big place, your trebuchet can cover the whole area."
"Isn't this crazy enough?!" Su Xie shook his head and then said: "In order to maximize their power, I will ask them to place the center point of twenty trebuchets on the south gate of Liangzhou City. To ensure that the three
Two-thirds of the ammunition fell within thirty meters to the left and right of the south gate tower."
"Can!"
The officer standing behind and listening to the conversation between the two couldn't help but take two steps back. You two are so crazy!
Half an hour later, all twenty trebuchets were set up.
"Prepare for test firing!"
Several soldiers got into the treadwheels on both sides and began to turn the treadwheels with their feet. The treadwheels rotated and drove the scroll through a set of gears, winding the rope pulling the long pole in circles.
As the rope was rolled around and around, the long upturned pole was slowly pulled down.
The soldiers placed the 100-kilogram standard round stone bullet on the ammunition position, and then pushed it to the front of the chute. When the long rod reached the lowest point, the gear was jammed to keep it stationary, and then the ammunition bag was wrapped in
On the stone bullet.
"Pre-shooting check!"
"Inspection completed, everything is normal!"
"emission!"
The gunner pulled the wrench, and the gears of the tread wheel and the reel moved away from each other. Pulled by the potential energy of the several-ton counterweight box, the short rod pressed down.
Based on the lever principle, the long rod naturally tilts upward, thereby pulling the ammunition bag to make a long arc movement.
The ammunition bag is wrapped on the stone bullet, and the stone bullet presses on the ammunition position. The pressure and friction force pull the ammunition position to slide backward. The friction between the roller and the chute under the ammunition position is extremely small. When the ammunition bag is pulled,
Down, the ammunition position moves backward quickly along the chute.
Before it moved to the last part of the chute, the ammunition bag followed the curved movement of the long rod, carrying the stone bullets and hanging in the air. When the part of the ammunition position wrapped in animal skin hit the last part of the chute and stopped, the ammunition bag belt
The stone bullet drew an arc in the air and flew forward.
Pulled by the potential energy of the counterweight box, the long rod continued to tilt forward rapidly. When it was close to vertical, the potential energy of the counterweight box was exhausted, and its own weight prevented the long rod from continuing to move forward. At this time, the ammunition bag threw away the two hundred kilograms of stone bullets.
go out.
With this centrifugal force, the stone bullet flew through the air and crossed the Liangzhou city wall.
The noncommissioned officer who had been observing with a tripod and monocular telescope quickly calculated the ejection curve.
"Add 500 kilograms to the configuration and test-fire 300 kilograms of stone bullets." The sergeant major shouted loudly with the calculation results.
Su Xie and Xu Lin watched quietly from the side, filled with joy. Their knowledge of arithmetic and other objects could also be put to great use.
Seventeen rounds of 300-pound stone bullets hit the city wall firmly, with the south gate as the center, scattered on the left and right sides, and the farthest point was no more than 40 meters away.
Three more rounds flew over the city wall, and the men of the three catapult trucks began to make corrections again.
The stone bullets hit the city wall, smashing the wall bricks covering the outside into rubble and splattering, releasing huge clouds of dust.
Li Yanqing and others stood on the south gate tower and felt their feet shaking a few times.
Their faces turned pale, and one general cried out in panic: "Why is the Song Army's trebuchet so powerful?"
There was silence on the city tower. Everyone was thinking about this problem, but no one could figure it out. They just felt that in front of these twenty behemoths, the Liangzhou City, which they had always thought was as solid as gold, did not seem to be that strong.
In the silence, suddenly a general pointed into the distance and exclaimed: "What are they doing?"
The long sound of the horn sounded like a broom, sweeping away all the sounds outside the city. In the silence, tens of thousands of Song Army soldiers raised their swords, guns, bows and crossbows high, and shouted in unison.
"Wonderful victory! Ten thousand victory! Ten thousand victory!"
The overwhelming voice just enveloped Liangzhou City, and twenty trebuchets were launched one by one.
They shot twenty fireballs into the sky. These twenty fireballs, with their heads on fire and trailing long black smoke at their tails, roared and fell towards the south gate tower like meteorites flying from the sky.
Chapter 172 Liangzhou City (3) This chapter has been completed!