"Third brother, congratulations on being the groom again. This princess cannot forget us." Niu Jianhu and four surrounded Li Chao with a smile on his face.

"It's not about marrying a wife." Li Chao replied without raising his head while drawing the drawings. He would also have witnesses to take a concubine and register, but he is also a concubine, but he is just a higher level than an ordinary concubine, but he is still not a wife. Therefore, it is not as lively and grand as marrying a wife. If Li Chao pays attention to it, he will also go to welcome the bride. If the mother's family status is higher, she will also send someone to see her off, and relatives will also add makeup.

But some people took concubines, but they just carried them back in a sedan chair and held a few tables of wine.

The mother Li Chao wanted to accept was the illegitimate daughter of Zheng Shanguo, the minister of Dali Temple. The marriage between the two Dukes of Zhao and Duke Zheng, and the alliance between the newly-produced wealthy families and the old-fashioned families. Of course, the Zheng family wanted to do it more grandly. When they sent Wanrong into the palace, the scene was very big.

Li Shimin married Zheng Wanrong, and it is said that he also earned tens of thousands of dollars in dowry, and the wealthy families of major aristocratic families also gave many gifts, and Li Shimin earned tens of thousands of dollars. If it weren't for the Zheng family's concubine's daughter, several major aristocratic families would have to accompany a concubine's daughter or something as a mother.

Li Shimin ascended the throne and became emperor. Whether it was the wealthy family in Guanzhong or the aristocratic family in Guandong, they were still relatively supportive, at least on the surface.

"Sanlang, what are you painting?"

"cannon!"

"A cannon? What is it? A stone throwing cart? A crossbow cart?"

The Tang people also called stone throwing chariots, but they were just cannons next to the character "Stone", and even called crossbow chariots.

What Li Chao painted was indeed a cannon next to the character "Stone", not a cannon next to the character "Shot". In fact, it is okay to create cannons in an era, but Li Chao didn't want to make such cannons at all.

First, if you want to get a cannon, you need gunpowder. Although it is not difficult to prepare gunpowder, it is not easy to make powerful gunpowder. It is too easy. Second, it is actually not very powerful.

Think about it, in the Song Dynasty, gunpowder weapons were all kinds and advanced enough, but the effect was average when used. If you really want to produce power, it is not only the formula, but also the problem of scale production.

Li Chao doesn't want to work hard to get this kind of thing, at least he doesn't want to get it out now.

However, the troops were about to be sent to Lingwu. Li Shimin only gave Li Chao 20,000 people, and there were only two months of food and supplies. He was not allowed to win this battle, and Li Chao did not want to defeat the battle. In order to increase his chances of winning, Li Chao was preparing to make some black technology.

You don’t have to work hard to get gunpowder. After all, you can’t get so much sulfur and saltpeter for a while. To get gunpowder with more powerful power, it’s not just sulfur and saltpeter. It takes a lot of time to create a black technology tree for craft chain.

It is difficult to relieve thirst from far away water, so it is better to just get some other things.

Li Chao chose two things, one was a crossbow and the other was a stone throwing cart.

The crossbow and the stone throwing cart are both equipped with existing equipment. Li Chao is going to get some powerful versions and take out the powerful version of the Eight Niu Crossbow, which is the Three Bow Crossbow, and also get the Xiangyang Cannon on the stone throwing cart, which is the whirlwind cannon.

These two things are not individual weapons, but are considered weapons of mass destruction.

Three-bow crossbow is also a type of bed crossbow, also known as the Eight-Cow crossbow. If three large bows are combined and mounted on a crossbow bed, it takes thirty people or eight cows to be pulled apart, so it is also called the Eight-Cow crossbow.

This kind of crossbow uses hard wood as its arrow shaft and iron sheet as its feather, commonly known as one shot and three sword arrows.

It can fire spear-like crossbow guns, as well as seven smaller crossbow arrows.

The range of fire crossbow guns can reach a terrifying seven hundred steps. Arrows are like spears. If they are fired at close range, they can be nailed directly into the rammed earth city wall. When they are fired volleys, rows of pedal arrows are nailed firmly into the city wall, which can create a ladder on the city wall so that the siege soldiers can climb up.

If seven iron crossbow arrows are installed and rows of volleys are fired, then even the strongest cavalry will not be able to withstand such an attack.

This can almost be regarded as the Gatling machine gun from the Cold Weapon Age.

The three bows are all super strong bows that reach twelve stones.

The drawing that Li Chao took out is a strengthened and improved version of the Eight Niu Crossbow.

The ratchet and pulleys were added, so that the winch no longer needed thirty soldiers or eight cows to pull it, and two soldiers could directly twist the crossbow bed.

According to the introduction on Li Chao's drawing, this improved Eight-Nuo Crossbow has increased 300 steps to the original range of 700 steps, reaching a thousand steps, which means that the maximum range can reach 1,500 meters and shoot for three miles.

Even if you discount the effective range, you can still shoot one and a half miles.

If you use these Eight Niu Crossbow to launch rockets, you will be even more powerful than a tiger in dealing with the defenders in the city.

Xiangyang Cannon is a stone throwing car, but the difference between this stone throwing car and the stone throwing car at this time is that it is a counterweight stone throwing car that uses the principle of leverage.

At this time, most of the stone throwing cars are pulled by a pisock. The bigger the stone throwing cars, the more people need to pull the cables, and there are even those that require 200 people to pull the throwing cars.

The lightest one only needs to be pulled by two people, but it can only shoot half a pound of stone bullets, with a range not far.

A heavy stone thrower requires one or two hundred people to pull ropes and can shoot hundreds of kilograms of stone bullets.

However, this kind of stone throwing car is far worse than Li Chao's.

Not only do people need it, but it also has slow launch, short range and poor accuracy.

However, the one drawn by Li Chao is a counterweight stone thrower.

This kind of stone throwing car can already be regarded as a semi-automatic weapon.

The stone-pitting machine has a huge iron block or stone hanging on the back end of the lever, and is equipped with pulleys and ratchets. The lever is pulled down and hooked by pulleys and ratchets. After loading the stone bullet, the iron hook is opened when firing. The large iron block falls and throws the stone bullet.

This kind of stone throwing car can be built very huge, but it does not require much manpower after using pulley sets and ratchets, and can even be operated with just a few people.

Especially this kind of rock throwing car has a longer range and greater power.

A giant stone bomb that can shoot one or two hundred kilograms or even three or four hundred kilograms can even be destroyed by the city tower.

A huge pit more than two meters deep was smashed, a real giant cannon.

Li Chao did not get a giant cannon with a weight of 10,000 kilograms. In fact, the best ratio of the counterweight to the shell is about 100 to 100. If you fire ten kilograms of stone bullets, then the counterweight will be a thousand kilograms.

But it does not mean that the counterweight can be increased infinitely, because this not only allows you to fire larger stone bombs by increasing the counterweight, but also requires the extension of the counterweight arm.

A stone bullet of twenty kilograms was fired, with a counterweight of two thousand kilograms. The counterweight arm and the projectile arm were one to four. When the court was shot at a thirty-eight degree angle, the ideal effect could be achieved and the range could reach 400 meters.

A 20-pound stone bullet with a range of 400 meters is definitely a giant cannon far exceeding this era.

The biggest thing Li Chao planned is this kind of 20-pound cannon, and then get some ten, five, and two pounds.

When the Jin army attacked the Tokyo City of the Northern Song Dynasty, they launched 5,000 artillery overnight. When they attacked the city, they directly launched tens of thousands of artillery pieces, bombarded the defending troops and destroyed the Northern Song Dynasty.

Li Chao didn't expect there were five thousand cannons, but if there were hundreds of cannons, it would be quite powerful.

This is a giant cannon that operates easily, requires less manpower, but has greatly increased its power.

The improved version of the Eight Niu Crossbow and Xiangyang Cannon are both real military and national weapons, no weaker than primary gunpowder weapons. They are even far more than that. Most people have to dig out their eyes when they take a look at this kind of thing.

Wushumo and others are now all founding uncles and are also people trusted by Li Chao, so he did not hide it from many people.

"Are these two things so powerful?"

"The Eight Niu Crossbow with a range of 1,000 steps can be operated by just two people?" Niu Jianhu's mouth was so open that he could stuff his two fists.

Li Gan was also extremely shocked. They were all very familiar with armour, but the performance of these two weapons was beyond their understanding.

"A twenty-pound stone bullet with a range of 300 steps? It can be operated in just two or three people?"

"How is this possible?"

"It's impossible that what I said doesn't end. When I draw the drawings, I will take them to the military equipment supervision to manufacture them. When the production is done, you will know what its power is like once you try."

Drawing drawings is not difficult.

Li Chao actually copied the information stored on the hard drive in the computer, then added some annotations, size conversion and other things.

When Li Chao sent these drawings to Li Shimin and gave a detailed explanation, Li Shimin's eyes were as wide as bull's eyes, and his mouth was wide open and he forgot to close it.

"The Eight Niu Crossbow with a range of 1,000 steps, cannon trucks with a range of 300 steps can only operate it with two or three people?"

Li Shimin felt that Li Chao was joking with him.

"Your Majesty, I'm not kidding."

"You're not kidding, how is this possible?" Li Shimin shook his head. He had never seen such a powerful or perverted cannon cart.

"Call the generals to be the chief supervisor and the ordnance supervisor immediately!"

If there is such a powerful crossbow carriage, even if it is only half as powerful as Li Chao said, it would be shocking enough.

The chief officer who served as the supervisor and the ordnance supervisor arrived, looked at the drawings, and kept stunning.

“I’ve never seen such a design.”

Li Shimin asked anxiously, "Can this design really be that powerful?"

"Your Majesty, I dare not say it yet, but several of the designs, such as the pulley and ratchet, can indeed greatly reduce the manpower required. We also have similar bed crossbows for these eight ox crossbows, but they require dozens of people to start, but if these devices are used, two people can do it."

Li Shimin was overjoyed when he heard this. This alone was enough to surprise him. From thirty people to two people moving, this was not only a reduction of ten times the manpower, but it would be a qualitative leap on the battlefield.

"This kind of stone throwing cart does not use human power to pull up the rock throwing cart's arm, but uses this device to put down the huge stone and bounce the stone bullet. It's wonderful, very wonderful."

"Your Majesty, I wonder which master craftsman came up with such a design?"

"Hahaha!"

Li Shimin laughed, "You will draw the best craftsmen immediately and start trial production immediately. I will see the real thing as soon as possible. I am really too late. I really want to see the power of these two divine objects right away!"

Although the things were just drawings, Li Shimin's face was flushed with excitement.
Chapter completed!