Zhao Bing originally wanted to use this rare opportunity to convince Jiang Wanzai to help him complete his plan, but he gave up when he found that he was hesitant. He did not want to take the risk, because once the plan was leaked, he would have no room for maneuver.

.?? Almights to retire from the hall are also as a last resort. His design -based weapons have entered the final assembly stage. If everything goes smoothly, you can test it tonight.

"Your Highness, I really can't imagine how to tighten the bow string of this crossbow." As soon as Zhao Bing entered the garden, Zhou Xiang came up to him and said softly with a grimace.

"Well, this is not difficult. Let me take a look first." Zhao Bing nodded and walked quickly to the construction site. There were more than a dozen craftsmen gathered there, talking quietly around the bed crossbow standing in the open space, because this bed

The crossbow was very different from anything they had seen in the past. When the prince arrived, they quickly moved out of the way.

"That's really good!" Zhao Bing raised his head and looked at the big guy in front of him and couldn't help but sigh.

"Your Highness, even our veteran craftsmen who have been in the Ordnance Supervision for several generations have never seen this crossbow. We really can't figure out how to place the arms and strings of this crossbow. We can only ask Your Highness to give us some advice." Zhou Xiang

Seeing that His Highness was still satisfied, he breathed a sigh of relief. At least there was no need to worry that there was a manufacturing problem.

"Well, let me take a look first." Zhao Bing said casually, secretly happy that this bed crossbow is not that bed crossbow. Not to mention that they have never seen it before, it is also the first time he has seen a real thing other than pictures, but can he do it on his own?

I don't have any confidence in my heart either.

In fact, the official name of the six or seven-foot-tall big thing in front of you is a ballista. It is an imported item from the Eight Classics and was lost hundreds of years ago. Of course, the craftsmen of the Song Dynasty who were thousands of miles away did not know it, but it was just a ballista.

In order to deceive others, Zhao Bing still called him a crossbow. These two things have the word crossbow, but their shooting principles are different, and their power is naturally different. The crossbow can be said to be the pinnacle of projectile weapons in the cold weapon era.

Already.

In the fourth century BC, Western craftsmen discovered that with the development of armor and the emergence of fortifications, the role of individual bows and crossbows was correspondingly weakened. They could not penetrate bronze shields, and of course they could not destroy them.

A bunker made of masonry. ??????w?w?w?．

b?i q?u g?e?．

c?nAlthough people have tried to make huge crossbows, the shooting force generated by the elastic deformation of the crossbow arm has been close to the limit, and it is impossible to give more power to the belemnite or projectile. The craftsmen of Dionysus understood that

The latest crossbow gun adopts the latest achievement of mechanical research - torsion spring, which uses the torsion generated by two bundles of tensioned horse hair, leather ropes or animal tendons as power to drive the crossbow arm to drive the bow string to eject projectiles or arrowheads.

The crossbow designed by the Greeks has a strong bracket. The main beam is placed on the bracket. Two torsion spring groups are installed on both sides of the front end. Each spring group drives a crossbow arm. The end of the crossbow arm is connected to the bowstring, and the bowstring is in the middle.

It is a woven mesh bag that accommodates projectiles. There is a long dovetail groove on the upper side of the beam. A slider with a long guide rail can slide forward and backward along the long groove. The rear end of the slider is equipped with a set of exquisite firing mechanisms, which can be easily locked.

By releasing the bow string and setting different bullet slots, you can decide whether to shoot stone bullets or long arrows.

A winch is installed at the end of the beam, and the user can move the slider by pulling the handle or dragging the rope. When the bowstring is pulled back and is set by the firing mechanism, the weapon is in a ready state. In order to allow the operation of the winch without

As for being too laborious, metal racks are installed on both sides of the beam, which not only eliminates the need to open the bow in one go, but also ensures that the chute can stop at any point between the starting point and the full tension point of the crossbow string.

Settings adjust the projectile power of the weapon to obtain the desired range.

The ballistae has great power. A ballistae with good performance can throw a stone projectile weighing more than fifty kilograms three hundred meters away and a six-kilogram spherical stone projectile four to five hundred meters away. In order to give the ballistae flexibility

direction and elevation, the crossbow is also designed with a base that can rotate freely. In addition, the crossbow is equipped with a simple sight, but its accuracy is also breathtaking. It can even hit the same place repeatedly. There were once crossbows

There is a record that the spear fired by the cannon split the spear that had hit it into two pieces.

?b?i?q?u?g?e?．

?c?n?

If the Chinese bed crossbow at that time wanted to achieve the same power, the arm length of the crossbow should be more than two meters, and multiple bow arms needed to be strengthened, ranging from two bows to four bows. Since there was no ratchet stop device, multiple bows

The crossbow stringing needs to be completed at one time. This requires an increase in the number of people operating the winch. A small one requires five to seven people, and a large eight-oxen crossbow requires more than a hundred people. Of course, if you want to move it, it is not a labor-saving and time-saving job.

The ease of operation of the ballista is much inferior.

The significance of the ballista is not only reflected in conquering cities and territories. It shows the unlimited potential of engineering technology and changes the image of science in people's eyes for the first time. In turn, it greatly promotes the development of science and technology and changes the attitude of engineering and technical personnel.

The humble situation. Moreover, because of the emergence of artillery, the original parallel and equal relationship in the infantry queue was completely broken, which in turn affected the transformation of social relations. Many Western scholars even believe that the emergence of ballistae played an indispensable role in the collapse of the ancient Roman republic.

The driving role of neglect - a weapon that has changed the social structure, and technology has changed the world.

Just as no one can live for a hundred years, good things will be eliminated by the constant emergence of new things, and the ballista gradually disappears in the long river of history. But a classic is a classic after all, and in modern times it has been rediscovered by ancient weapon enthusiasts.

And they were copied according to scattered records in ancient books. Although later copyists tried their best to use ancient techniques and materials to make finished products, they often failed to achieve the effects recorded in the test firings. Therefore, some people thought it was the ancients bragging, and more people

But it is because the loss of ancient manufacturing techniques has affected the power of the crossbow.

Zhao Bing also obtained the secret from the exchanges and debates between enthusiasts. However, due to limited financial resources and energy, he was unable to trial-produce it himself. However, he did not expect that he would realize it after traveling through time. The one in front of him was created based on the data in his memory.

It is a medium-sized ballistae, but whether it can be used and achieve the desired effect is still unknown. Everything will have to wait until the test firing...

The manufacture of ballistae is an extremely precise work. Craftsmen distinguish the specifications of ballistae based on the size of torsion springs, which in turn rely on torsion springs. All components are designed around springs, which rely on

Two formulas summarized by craftsmen. These two simple formulas contain a precise understanding of the mechanical properties and ballistics of torsion springs, and are also the core secrets of manufacturing crossbows. Today, Zhao Bing is the only craftsman who has mastered this secret.

It’s not surprising that they are helpless.

Zhao Bing chose bow strings as the material for making torsion springs, and bow strings in this era were generally made from cow tendon. Zhao Bing ordered the craftsmen to weave ropes according to the thickness he required, then fixed them on the brackets, and then used the crossbow arms made of hardwood to

It is sandwiched between the ropes to apply force, and finally the cables and crossbow machine are installed accordingly, and the mountain is looked at. These are the same principles as the bed crossbow, and the craftsmen can complete them independently with only a little guidance.

"You can try it!" After the assembly was completed, it was already dark, and torches were lit around the place. Zhao Bing checked it up and down again and said.

"You two, Zhang Xian, hurry up!" Ni Liang's absence is a pain for Zhou Xiang. His Highness is small and can only be used as a human crane, holding it and looking up and down. However, the prince is not light, so he wiped

The sweat on his face pointed at the two sturdy craftsmen and said. The two craftsmen were a little hesitant. According to past experience, two people would never be able to turn the winch of such a large bed crossbow. But as soon as they hesitated, they were reprimanded and could only

They stepped forward bravely, but when they tried to turn, it was not as difficult as they imagined.

"Okay!" Zhao Bing listened to the 'squeak' of the torsion spring due to the added force and the two pawls on both sides of the end of the chute swept backwards along with the chute and the cogs fixed on both sides of the bracket.

There was a "click-click" sound, and he was very nervous, and his palms were sweaty. He was worried that the gun mount would not be able to withstand such a large force and fall apart. When the slider moved halfway, he ordered it to stop.

"Load the bomb, aim at the tree next to the wall and test-fire." After checking again and finding nothing unusual, Zhao Bing pointed to a large tree as thick as a bowl about forty steps away from them and said.

"Yes, Your Highness!" Zhou Xiang agreed. This was a good time to show off. He ordered a torch to be inserted in front of the tree, and then personally went into battle, picked up a pebble weighing about three kilograms, put it into the bullet slot, and adjusted the crossbow.

The angle of the gun.

"Your Highness, that's all." If it is said that the most skilled person to practice this kind of technical weapon is not the soldier who uses it, but the craftsman who makes the weapon, and Zhou Xiang has participated in the manufacturing from beginning to end and is familiar with the function of each component.

There was naturally no problem with the operation. After adjusting, he reported to His Highness.

"shoot!"

"Yes!" Zhou Xiang asked everyone to spread out, and struck hard with a short hammer. The rotary trigger rotated, and the hook holding the rope on the crossbow string was detached. Only a 'boom' sound was heard as the crossbow string relaxed.

I didn't even see clearly how the stone projectile flew out, I just heard the muffled sound of the stone projectile hitting the object, but the big tree as the target stood there perfectly, and it seemed that it didn't hit.

"Your Highness, I..." Seeing that he had failed, Zhou Xiang was about to apologize and was about to try again, but found that the tree suddenly fell down.

"It's a hit, let's go take a look!" Zhao Bing was overjoyed when he saw this. He yelled and jumped over to check it out first.

"Your Highness, slow down, don't fall." Zhou Xiang is really confused now. He said he is young, but His Highness has created this complicated big thing at a young age; said he is old, is he just a child with such a happy look?

He shook his head with a wry smile and chased after him!

"Your Highness, this crossbow is very powerful. With just half the power of the bow, it pierced the big tree, smashed a big hole in the wall, and the stone bullets turned into powder." Of course, everyone refused to let His Highness step forward. A craftsman

He stepped forward to inspect it and reported back.

"Okay, okay, it's successful. Let's cook meat and serve wine tonight to celebrate!" After hearing this, the last worry in Zhao Bing's heart disappeared, and he said loudly to everyone...

After drinking and eating that night, Zhao Bing allocated some money from his already tight pocket to reward the craftsmen who trial-produced the crossbow. Then he ordered Zhou Xiang to move the crossbow to an empty place behind the mountain outside the house and let them
Chapter completed!