Chapter 753

The words of the old craftsman immediately made Li forget his worries.

A sword body that can bend indicates that the metal used to make the sword has high toughness and elasticity, otherwise it will easily break.

"Oh? Seriously? Where's the sword you forged? Show it to me." Li Qieyou hurriedly asked.

The old craftsman was embarrassed and rubbed his calloused palms uneasily again: "That sword is a waste sword. Because it is unqualified, it has been refined again. However, the villain remembers that at that time, the villain made a mistake in quenching and tempering and made a mistake in the steps, which led to the problem of the sword body. If huxianbo needs a villain to make it again, he is willing to try, for fear that he will not meet huxianbo's requirements."

Li forgets to worry and rejoices. As far as he knows, spring steel is indeed quenched and tempered. It is different from ordinary steel. Murphy's craftsman made elastic spring steel by mistake. If it is true, his new crossbow will be more promising.

He hurriedly said, "OK, OK, you try again immediately. I need to make the crossbow arm with fine steel. If you can make it, I will reward you a hundred liang of gold!"

Hearing that huxianbo was willing to reward one hundred liang of gold, the eyes of several other craftsmen suddenly turned red and looked at the talking craftsmen with envy.

They all know that the old craftsman made a waste sword before. Because the body of the long sword he made was distorted when it was waved due to quenching error.

In the eyes of the Tang people, it was naturally a waste sword. For this reason, the old craftsman was severely punished by the manager of the workshop.

Who could have imagined that the old craftsman would be blessed by misfortune. It was obviously a mistake, but he was favored by such a noble man as huxianbo.

This is not a small sum of money. How can they not be jealous.

The old craftsman was even more excited and repeatedly bowed to Li Qieyou: "Huxian uncle, don't worry, if you dare not pay attention, you will make the crossbow arm."

"Well, if you need anything, just tell young supervisor Yan, how long will it take you to make this fine steel crossbow arm?"

"Five days, no, three days, the villain will be able to make it." with the stimulation of gold, the old craftsman was ready to fight.

Li forgot to worry and nodded with satisfaction: "well, in that case, I'll wait for your news."

If the metal crossbow arm can be solved, the rest is easy to do.

Although Yan Liben has never seen the shape of the modern composite crossbow, it is not complicated. Find a skilled craftsman and you can make it in a day.

On the contrary, Yan Liben didn't understand the meaning of the eccentric wheel group and lever assisted upper stringer, so he had to ask Li forget you for its purpose and structure in detail.

After listening to Li's explanation, Yan Liben's head suddenly shook like a rattle drum with only a small force to string the crossbow.

"How could this be possible, sir? If the crossbow you designed was made of refined steel, the tension would be amazing. The string force of the crossbow used in the army now ranges from two stones to two stones and four, but I estimate that the crossbow must have at least three stones, or even higher. How can such a strong crossbow be tensioned by manpower alone? The disciple estimates that such a strong crossbow is impossible Single person use. "

Li forget worry can only be patient and tell Yan Liben what is pulley block, eccentric wheel and lever principle.

Fortunately, although he was a scum, he still remembered his junior high school physics knowledge, and was barely able to cope with Yan Liben's problems.

As for what he couldn't remember clearly, naturally, he had to prevaricate and let Yan Liben think of a way to do the experiment himself.

Yan Li himself was the general's supervisor. Although he had not learned any physical and chemical knowledge, he was also proficient in the mechanism structure. After listening to Li forgetful's general explanation, he also understood the beauty of the design of this crossbow.

After thinking about Li forgetful's intention to make a crossbow, Yan Liben couldn't help but gasp: "Sir, if such a powerful crossbow can be made, it's a great magic weapon. The disciple estimates that even if it's direct, the crossbow can easily hit the target hundreds of steps away."

There are several kinds of military crossbows in the Tang Dynasty. The range of Fuyuan crossbow is 300 steps, that of breaking crossbow is 230 steps, and that of angle crossbow is 200 steps.

It sounds like a terrible range. You know, one step of the Tang Dynasty is about one meter and five meters in later generations. Even if the range is recent, the angle bow and crossbow used by cavalry has a range of 300 meters.

The assault rifles of later generations usually have an effective range of only more than 200 meters.

Naturally, this is not the power of the crossbow of the Tang Dynasty, which surpasses the firearms of later generations, but the range refers to throwing.

Whether bow or crossbow, the main mode of operation in war is not direct fire, but projectile.

Launch a crossbow into the sky at a certain angle, and use the gravitational acceleration and parabola principle to improve the range and killing power of the crossbow. Similar to the principle of later artillery, it has been calculated for a long time that the number of angles at which the crossbow will be fired will roughly fall into what area. During combat, the crossbow man will follow the command and cover the fire area at different distances at different angles enemy.

Therefore, the ancient Chinese bow and crossbow often said that the range was hundreds of steps, which referred to the throwing distance. However, if it was used for hunting or hunting individual targets, it could only be directed, and its effective killing distance was quite short.

For example, the crossbow used by the soldiers of the Tang Dynasty can shoot 230 steps, and the direct shot can only have a range of 70 steps at most, that is, about 100 meters.

No matter how far, even if you hit the target, there is no lethality.

Li Qieyou believes that even if the direct range of the new crossbow he asked Yan Liben to build for him could not reach the range of 200 meters of those modern composite crossbows in later generations, 150 meters should still be no problem. It can be called the best crossbow in the world.

Yan Liben carefully took the crossbow drawing drawn by Li Qieyou into his arms as a treasure.

"Don't worry, sir. The disciples will be able to make this crossbow!"

"Ha ha, that's good. I'm a teacher, but I bet with Chumo and they. After ten days, I'll take this crossbow and go hunting with them. Li Ben, you have to work hard and help me make this crossbow in ten days. Hey hey, when I win the bet, I'll make those bastards look good!"

Yan Liben could not help twitching a few times when he heard the speech.

My division commander is really unreliable. Such a powerful weapon is not made to equip the forbidden army of the Tang Dynasty, but to bet with the dandies

If it weren't for Li forgetful worry and his teacher, he would break out on the spot.

Can such a powerful weapon be used for children's play?

Yan Liben's face turned red, but he really didn't know what to say. He just gave Li forgetful a salute. Out of sight and out of mind, he hurried away to find a craftsman and began to prepare to make a crossbow.

Li forgot to worry, but didn't notice his disciple's expression. After leaving the crossbow making to Yan Liben, he began to think about it again. Since he was going to hunt, should he make another set of powerful armor to wear?