Zhang Zhugong and the three of them kept putting things out, especially one of the shelves seemed to be rockets. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Earlier, Yang He saw that there was an instrument for making arrow stalks in the hall, which contained a rotating knife and a handle, put a wooden strip into it, shake the handle, and an arrow stalk was born.

This kind of handmade instrument is considered advanced at this time.

Yang He walked to the front of the rack and took a rocket to see, a two-foot-long birch arrow shaft, the tip of the arrow is made of fine iron, a three-edged style, a nozzle is tied to the rod not far under the arrow, and there is an iron end behind the tail feathers, is this to maintain balance?

was looking at it, and Zhang Chuxun's voice next to him said: "Xiang Gong is also interested in rockets?" ”

Yang Hedao: "How many have you heard, is it difficult to make this rocket?" ”

Talking about his profession, Zhang Chuxun's shy expression is much less, he said: "Nothing else is difficult, mainly drilling." ”

He introduced to Yang He, according to what he said, rocket production can be divided into several parts, first of all, the arrow shaft, which can be made of wood, but if it is built well, more arrow bamboo is used.

But there are no arrows and bamboos here, so they use birch instead, and they have an arrow shaft machine, so it is easy to make arrow shafts.

Then there is the arrowhead, and the fine arrow is naturally made of fine iron, and the front length is about four inches, which needs to be finely made.

After the arrow is made, put on the arrow shaft, and then with the tail feathers, according to the different hardness and softness of the arrow shaft, how to match the tail feathers also have knowledge, in order to maintain the balance of the head and tail weight of the rocket, so that the rocket will not staggered after launching, and will also put the iron end at the tail end, used to maintain the weight.

Yang He nodded, it sounds like it's not easy to make a rocket.

According to Zhang Chuxun, at this time, the craftsman somewhat had some mechanical concepts, such as putting iron at the tail to maintain weight balance.

Zhang Chuxun finally said that the most critical part of the rocket is the nozzle tied to the arrow shaft.

The flamevent of this nozzle must be straight in order to bring stable power to the rocket.

"Snorkel?"

Yang He looked at this, is the most difficult part of the rocket to build here?

Zhang Chuxun said yes, he said that the production of the spray cylinder is not simple, roll it into a cylinder with paper, then fill it with gunpowder, and build it hard, and it must reach the point where it is as solid as iron.

Drill again, this hole is even more straight, drilling oblique rocket launch is oblique, the difference between a good rocket and an inferior rocket is mostly here.

Drilling is very difficult, drilling too much, the drill bit will be hot, and if the gunpowder is hot, it will burn, causing injury accidents.

Generally, the fire-breathing hole is drilled to two-thirds of the nozzle, and if it is drilled deep, it will vent the fire, and if it is shallow, the arrow will be weak.

Then the hole can hold three medicine wires, so that the rocket is almost ready.

Yang He listened to it with an eye-opening eye, and the people next to him were also impressed, interlaced like a mountain, Zhang Chuxun didn't say it, many people may not know this secret for the rest of their lives.

Zhang Chuxun also said that the spray cylinder construction method is not only to drill the line eye, but also to use the iron rod to make a natural line eye.

Although the driller is not as good as the puncher, the craftsman uses more drilling.

Drilling is relatively easy, and most of the people who use the method of beating are masters who have been skilled for many years.

Zhang Chuxun can only drill now.

And after the rocket is made, if it is excellent, the power is strong, and the enemy is fearful, and it is more than a bow and crossbow.

Yang He was impressed, this is the orthodox Ming Dynasty rocket production method.

He didn't know much about rockets in later generations, but thinking about the generation of military god Qi Jiguang, he admired rockets so much, it must be reasonable.

Qi Jiguang called the rocket an artifact, and the power is not under the bird's gun, but both north and south.

During the competition, it is more in the 80 steps to stand up, and those who can level the middle are fine, and those who are crooked and up and down and cannot enter the handle, they must govern their soldiers and sit on their long.

If the method is not refined, the craftsman will be blamed.

It can be seen that it attaches great importance to rockets.

In later generations, several foreigners made a show and tried to test the launch of the Ming Dynasty rocket, but Yang He just shook his head now.

These people profoundly expounded how inferior rockets were born, just roll a cylinder, put some medicine, and think it was a rocket?

This kind of performance is not as good as even ordinary firecracker workers.

A group of unprofessional people, an unprofessional show.

He took a rocket in his hand and said, "Can you test it?" ”

Zhang Chuxun said: "Let the villain come." ”

He took Yang He's rocket, took a wooden frame and walked out of the hall, and everyone followed, until they walked out of the temple gate.

Zhang Chuxun stopped outside the temple, his shelf was tied to the fire rope, he took out the fire fold from his waist and lit it, put the rocket on the shelf, and then aimed in one direction.

Yang He saw that there was a wooden target erected in that direction, about the size of a person's body, and he estimated that the distance was about seventy steps, that is, more than a hundred meters.

Everyone watched with bated breath, Zhang Chuxun aimed, slowly pulled the arrow back, and the lead got closer and closer to the burning fire.

Suddenly, the line of fire sneered and burned, and with a sharp arrow roared, a straight trajectory roared forward, wings swayed, and in just a moment, the rocket accurately hit the wooden target seventy paces away.

"Okay."

"Good Arrow......

"Sharp!"

Minister Yang and the others all clapped their hands vigorously, and Han Guan'er also showed a look of admiration on his face.

Yang He is also breathtaking, such a sharp rocket!

According to his estimates, the strength and distance of the arrow just now, if you change it to a bow and arrow, you need at least a medium-force bow to shoot, which will require almost a hundred pounds of strength.

And the rocket easily achieves this purpose, and it is simply effortless.

He groaned in his heart, the rocket fruit is an artifact, there is no need to make a strong bow, and it is easier to train than to train archers, which saves a lot of money and many years of work.

It often takes several years to make a good bow, and it is even more difficult to train an archer, with many years of training and strong arm strength.

Like Yang He himself, although he can drive a power bow, how many years has he been training?

He prides himself on opening a strong bow, but when placed on a rocket, he can easily shoot his arrows, as long as there are plenty of arrows.

After using rockets, the strength of the arrow is no longer related to the strength of the bow, but only to the size of the arrow and the power of the spray can.

Although it is not easy to manufacture rockets, it is not as difficult to build as birds, and there is no danger of exploding.

Yang He considered whether to replace the spearmen with palladium soldiers, the Qi family army widely used palladium soldiers, each palladium soldier was equipped with a rocket, far with rockets to kill the enemy, close to the use of palladium to engage the enemy, take the enemy's weapons, the palladium soldiers are known as the most advantageous in the army.

Even if the spearmen were not replaced by palladium soldiers, Yang He thought that the spearmen could be equipped with rockets.

Make a mounting groove in the shaft of the spear and tie it to the arquebus, so that you can launch the rocket first in battle.

But now there is a lack of rocket workers, not to mention masters like Zhang Chuxun, it is difficult to find workers with experience in fireworks production, let's talk about it later.

Minister Yang and the others even surrounded Zhang Chuxun and asked him to shoot another arrow, making Zhang Chugong and Zhang Chujing look at each other and smile.

However, Zhang Chuxun also said that although the rocket is sharp, it also has the same problems as other firearms, that is, it is not easy to preserve.

A good rocket spray barrel should be made of alum paper, with oil paper between them, so that it can not go nitrate, and the arrows made are best smeared with hemp oil, or fish oil to prevent rust, and then wrapped in oil paper and put in a wooden box, stored in a moisture-proof warehouse, which can be stored for two years.

But under various factors, it is difficult to say how long it can be saved.

In general, the military evaluates that this thing is the least durable to harvest.

Special rockets are consumables, and a single rocket is expensive to make, and it will only be cost-effective to manufacture in large quantities.

……

Lao Bainiu: Thank you for the reward from the leader of the alliance who "loves Zhao Zhongju the most", as well as the 30,000 Dharma protectors who "feed you a big watermelon", and other book friends, such as Wang Gonggong.

Zhao Zhongju is an old book friend.,Read with me from a thousand households.,Xiaobing constantly puts forward opinions on QQ.,Xu Nanming also often sends me information.,The name "Zhao Zhongju" is provided by him.,I still want this book.,I'll make him a woman.,Haha。

However, I know that Brother Zhao is financially well-off, and rewarding will not cause him a burden, and I am also pleased to see that the economic strength of the book friends of "Feed You Big Watermelon" has improved, and they have the ability to support their favorite books.

But I still say that, do what you can, reward is the heart, not too much, whether it is a reward of 100 points, or 10,000 points, I will thank you together. Of course, after entering the VIP in the future, readers and friends will want to watch the genuine version, that's for sure.

Also, I have posted some maps and other information on Weibo, you can search: the best old white cow, and the relevant maps will be updated in real time in the future, battlefield forms, etc.

Some book friends suggested that I open a WeChat public account, sweat, I keep brushing a Weibo, I want to look at it from time to time, and then make a WeChat public account, I don't have time and mind to write.

So what certification, what WeChat public account, what book friend group, all seven seven eighty-eight things, all are free.

Another: There is another chapter tomorrow morning at 8 o'clock.