One shot per minute, no matter how powerful it is, there is no need to exist. The crossbows used in the army can be used for one to two months of training, but even so, Wei Feng is very dissatisfied!

A skilled archer, who plucks arrows, rafts arrows, and slaps a bow in one go. In addition, he does not aim deliberately, can shoot six arrows per minute. The crossbow must reach at least four shots per minute according to his ideal state, so that he can carry out continuous and uninterrupted saturated attacks. Because Wei Feng knew that in the future, due to his absolute number of disadvantages, cavalry could not be used as the main force in the early stage, and even more impossible to fight with the enemy cavalry to fight with the enemy. Only after capturing the horse farming land and then developing for several years can there be a possibility of fighting cavalry battles.

In other words, before the north had a foothold, the cavalry could only be used for assault, but not for head-on charge, and infantry was still the main force of combat, so the importance of a powerful and rapid-firing crossbow is self-evident!

However, there are only a few people in history who can drive a powerful crossbow like Wei Feng that can drive seven and a half stones with bare hands. One of the most popular ones is Li Guang. He can shoot arrows into stones. The other is Yue Fei, who can drive eight stone bows!

The so-called eight stones are calculated based on Han stone. If Song stone is used as the unit of measurement, then Yue Fei is not a human, but a superman! You should know that this strange-shaped divine arm crossbow is calculated based on Song stone, and the original divine arm bow, according to the records of "Mengxi Bitan", has a strength of four stones and six dou!

The arrows of the personal guards shot out by Wei Feng did not pay attention to them, but frowned. This made everyone around him feel so arrogant!

Perhaps because he noticed the abnormal atmosphere in the air, Wei Feng waved his hand and said, "Don't be nervous, come on, I will ask you, can I increase the rate of fire? It's possible to do it every eight breaths or even five breaths?"

He said he should not be nervous, but as Wei Feng finished speaking, the old craftsman knelt on the ground with a pounce, kowtowed repeatedly and said, "When opening a crossbow, you either use your hands to pull it or kick it, but the manpower will eventually become poor sometimes. Please forgive me. Let me do my best!"

Wei Feng stepped forward and helped the old craftsman up. He said helplessly: "Don't kneel down at any time. I would not have any intention of blame. How can the world be accomplished overnight? You have to explore step by step, when one direction cannot be done. Can you change the direction? For example, this divine arm crossbow. You have installed a torsion spring group to increase the power to seven and a half stones. Since ancient times, there have been such a strong crossbow? In fact, this crossbow is already shocking. You said, but?"

"I dare not, I dare not, thank you for your forgiveness, General!" Wei Feng's kindness made the craftsmen relax a little and kept giving in.

Wei Feng simply sat on the ground, patted his side, and called out, "Sit down. Since the divine arm crossbow has no clue for a moment, you might as well put it aside first and come up with a new idea. Now let me tell you about the crossbow cannon, how about it?"

The craftsmen sat around Wei Feng in a circle, and the old craftsman was still the old craftsman, and said boldly: "Go back to the general, because the space on the ship was limited, he only made a crossbow. The crossbow was not made, but we were not idle either. The principle of the crossbow was similar to combining the crossbow with the catapult. The key point was the torsion spring group. Oh, please wait a moment!"

Wei Feng turned his head and said: "There is a component called a spring. It deformations through external forces to store energy. After removing external forces, the energy is released and the spring can be restored to its original form..."

Wei Feng not only spoke but also made drawings to make craftsmen quickly understand the working principle and possible uses of springs, and his emotions suddenly became excited!

As soon as Wei Feng shut up, the old craftsman took it and said, "General, we can try to put the spring into the firing device. For about half a month, we should be able to make a sample of the crossbow. Please rest assured that everyone will do their best!"
Chapter completed!