For example, the bed crossbow seems to be the most powerful bed crossbow in history is the three-bow bed crossbow hundreds of years later, that is, in order to strengthen the power of the bed crossbow, three sets of bow arms are used, and the power of such a bed crossbow can even reach about 1500 meters, of course, this is only the range, and the effective range naturally cannot reach this distance.

However, the effective range of hundreds of meters has exceeded the advantages that can be dealt with in this era, and even this distance is farther than that of catapults, in fact, the number of times that catapults were used in ancient China was not too much.

And the number of times the crossbow arrow is used is far more than this, but Huo Gang has already thought about the next step of weapon development, the development of black powder is very simple, the firearms research institute has already researched black powder, their main practice now is to continue to research new propellants, Huo Gang is not ready to develop arquebuses, he is ready to go directly to smokeless gunpowder.

Of course, Huo Gang didn't care if it could be developed or not, the reason why gunpowder was developed was to prepare for the industrialization of three acids and two alkalis, and they had to be given a goal.

At present, they have been able to complete a small amount, mainly because their cognition of these things has not kept up, after all, the chemical knowledge of this era is equivalent to nothing, so those who can enter this institute are the top talents at present, they are all self-taught, and then self-corroborating research.

In this research process, it is actually very dangerous, but the improvement of black powder is also going on at the same time.

These are all understandings of chemistry, so Huo Gang didn't stop it, anyway, he didn't have much pressure now, and he was not in a hurry to develop the musket directly, so he could give them enough time to develop it.

But no matter how slow this time is, when these children who learn new basic education grow up, and the children who are educated in full accordance with modern methods, when they learn chemistry, there will always be some geniuses.

This is not too long, at most three or five years.

Because there are not many things to learn in this world, especially mathematics, which is still very basic, they have enough time to learn other knowledge, so the learning time is naturally much shorter than in later generations.

According to this time, in fact, bed crossbows can be made now, as for maple trees, it doesn't matter when the time comes, large-scale afforestation always has benefits and no harms, and it is not bad to put them there to see the scenery when the time comes, so this Huo Gang will not stop it.

"The bed crossbow can be made, and with the pulley, the bed crossbow should be easier to pull, right?" Huo Gang said.

"Is the chief going to see it?"

"Let's go." Huo Gang nodded.

The two of them turned over and went straight to the Weapons Research Institute with a team of guards, the Weapons Research Institute is some distance from the Industrial City, but it is not too far from the Industrial City, on the west side of the Industrial City, near the foot of Qilian Mountain, an area has been demarcated as a place for the Weapons Research Institute.

It has been defended by an army of five hundred tigers, and almost all roads into it have been blocked, and the level of secrecy here is even higher than that of the industrial city.

Entering the weapons research institute, it is divided into three areas, the leftmost area is the place where crossbow arrows and other engineering equipment are studied, such as some of the ideas that Huo Gang actually gave them before, how to quickly build bridges, and so on.

Of course, these are just to give them an idea to think about here, not afraid that they will waste money, because they will not waste much money, but it can make them use more brains to see if it can work wonders.

"Chief." It is Lu Mu who is responsible here, because of the training of many fitters and other technical jobs, so that carpentry is no longer needed in many places, and carpentry is actually the best to cultivate, and a large number of carpenters have been trained before making those spinning machines.

These carpenters dare not say that they have the level of Lu Mu, but there is no problem in helping to process some abrasives, so Lu Mu is no longer used for those small jobs.

"Show me your bed crossbow." Huo Gang nodded.

"Yes, Chief, please come with me." Lu Mu nodded, and walked directly to the weapon test site with Huo Gang.

This test site can be said to be a huge playground, and after coming up, Huo Gang saw a huge bed crossbow placed there, which was not much different from the three-bow bed crossbow that Huo Gang saw on the Internet in later generations.

The only difference is that the three crossbow arms are equipped with two movable pulleys, while the bowstrings of the three bed crossbows pass under the middle crossbow channel, to the point of saving power, in fact, the pulley crossbows of later generations are combined into three are linked together.

In this way, the winch used in this huge bed crossbow is much easier than the bed crossbow of this era, and according to historical records, the three-bow bed crossbow in the Song Dynasty is said to take thirty people to open.

Considering the volume of the bed crossbow, it is a bit unlikely that thirty people will pull it apart, but it is estimated that it will take at least a dozen people to use the winch, but there is no need for this now, the winch adopts a two-sided winch, and two soldiers on each side can easily pull the winch.

This means that the speed at which the bed crossbow is wound is extremely fast, and with the soldiers who specialize in placing giant arrows, their speed is several times faster than the current single-bow bed crossbow in Datang!

The power of such a bed crossbow on the battlefield can be said to be indestructible, and there are a total of five crossbows in the middle of the bed crossbow, of which the middle one is a very huge giant crossbow arrow, and smaller crossbow arrows can be placed in the two grooves on each side.

In this way, you can selectively use the different powers of the bed crossbow, and the only difference between this bed crossbow and the ancient bed crossbow is that it adds a scope, to be precise, through scientific calculation methods, its approximate trajectory is calculated, which means that its accuracy is much more perverted than the bed crossbow of this era.

If it is against two armies, such a bed crossbow can directly fire 5 arrows, and there is really nothing to stop its power from this thing, no big shield soldiers, no heavy cavalry.

"Boss, this is the bed crossbow we developed, according to our current improvements, its firing speed can be very fast, if well-trained, it can probably reach 10 breaths to fire a wave of crossbow arrows." Lu Mu said seriously.

10 breaths is about more than 10 seconds, but if you launch like this, you need to directly use manpower to pull it apart, instead of using a winch, which is a great physical drain on the soldier, almost twice to pull it apart, which is also thanks to the moving pulley, otherwise, don't even think about it.

If you use a winch, the speed is a little slower, but it can also reach the point where it can be completely pulled away at 15 breaths.

If this is Datang's bed crossbow, it is estimated that it will only be able to be fired once in a minute, and it is impossible to fire frequently.

"We used a wooden, stainless steel arrow to shoot the crossbow arrows, and if it was an ordinary brick and concrete city wall, we could shoot directly through the brick and concrete city wall about 50 centimeters thick at a distance of about 500 meters." As Lu Mu introduced, he motioned to the soldier next to him to start.

Huo Gang didn't speak, but looked at the total of eight Tiger Ben Army soldiers seriously, they showed the way of single-shot crossbow arrows, and at a distance of four or five hundred meters from here, a wall stood there.

"Let's go!" As another soldier next to him directly waved the flag in his hand, the four soldiers standing near the winches on both sides immediately began to rotate the winch at a frantic speed, and with the rotation of the winch, the bed crossbow bowstrings linked together in the middle were instantly pulled apart, and with a tooth-aching crunch, the three bed crossbow giant bows quickly bent.

And the person next to him was already waiting with a huge crossbow arrow.

As soon as the bowstring was put into place, one of the soldiers immediately shouted: "Take position!" ”

The soldier with the crossbow bolt quickly put the special crossbow arrow with the thick arm in his hand directly into the crossbow tunnel in the middle, and after putting it away, he also shouted directly: "Take position!" ”

Then the people below quickly began to operate the crossbow arrows and began to aim, a person on the left took a hammer and struck directly on the trigger of the bow and crossbow, and there was a dull loud sound of "boom", and the crossbow arrow in the middle of the bow and crossbow was directly and instantly stretched away by the huge force, only hitting the wall five hundred meters away.

With a loud roar and a dusty scene, a huge hole appeared directly on the brick wall standing in the distance, and it was obvious that the crossbow arrows had directly shot through the brick wall.

"Let's go over and see." Huo Gang was a little curious, to be honest, he really hadn't seen these scenes of large bed crossbow shooting.

"Yes!"

Following Lu Mu and the two of them, when they walked to the wall, Huo Gang couldn't help but gasp, this wall is made of fired red bricks and cement, a typical 37 wall, which is 37 centimeters thick, is stacked side by side with standard masonry one horizontal and one vertical.

Although there is no reinforcement in this, the strength of cement is much stronger than that of mud.

But such a wall was directly shot out of the middle of the hole with a diameter of about 60 centimeters, if it was not for the wall was large enough, it is estimated that it would have collapsed directly. And the crossbow bolts flew at least a few dozen meters after passing through this wall.

Based on this distance, it is estimated that even if there are people behind this wall, they will die.

Thinking about it, Huo Gang felt that if this thing was shot directly at a person, it was estimated to be much more terrifying than the sniper rifle bullets in later generations on a person.

"Chief, this is the reason why the walls are too thin, if it is a city wall, these crossbow arrows can directly penetrate the city wall for tens of centimeters, and our besieging soldiers can completely climb up directly along these crossbow arrows." Lu Mu said.

"Well, you can study these aspects, but you have to communicate more with the soldiers, and it is best to study a better way, after all, if we attack the city, we are easy to sacrifice, and all our soldiers' lives are precious." Huo Gang said seriously.