Xue Yu is different from Yan Hua and others, he is also on duty as a golden gun, he is best at arrows, in the level of arrows, second only to Sun Ji, even in the face of Danmu, it seems so unbearable, but I have to say that in the entire Great Song Army, Xue Yu is the top ten powerful archers. Pen "Fun" Pavilion www.biquge.info

The archer's job is archery, Xue Yu was good at all bows and arrows before, even some crossbows and strong crossbows are no exception, the longbow is such a bow, it is destined to enter the bow of the Great Song Dynasty military sequence, it must be mastered, or it is flexibly mastered.

Zhao Xin said that the effect of the longbow is equivalent to the longbow of 4 stone hard bows, which is the most suitable longbow, taking into account the economic value and power, which is very important for elite archers, Xue Yu knows very well how important this is, unless the cost and manufacturing difficulty do not rise on a large scale, improve the power of the longbow, otherwise, some expensive promotions will reduce the competitiveness of the longbow.

In Zhao Xin's explanation, it is simply impossible, since it is impossible, why did Zhao Xin mention the method of raising the longbow, isn't it inconsistent.

Not only Xue Yu, but Yan Hua also became interested, and guessed randomly: "Could it be another kind of bow material, or a bowstring?" ”

The bowstring is the most important factor restricting the power of the longbow, because the elasticity of silk is limited, and if you use other materials, you should be able to support the increase in the power of the longbow.

What Yan Hua said is a solution, the material that is more suitable for the longbow is purple wood, and the material of the bowstring can be made of hemp fiber, both of which have a lifting effect on the longbow, which will bring about 30% improvement to the longbow, and the price will not be expensive there.

These two raw materials, one is trees, the difficulty of growth is not much higher than that of elm, and the other is fiber, as long as it is planted in large quantities, the speed of production is always guaranteed.

However, the core of this method is purple shirt, there is no purple shirt in China, and in order to obtain purple shirt, it must be transplanted from Europe to China, and it is successfully planted.

Not to mention how far away Europe is from Asia, for the Northern Song Dynasty, unless large-scale development of navigation, this is almost an impossible task, even if it is lucky to get the seeds of purple shirt wood from the hands of Arabia, from a seed to grow into a towering tree, it takes time, and from a tree, or a small piece, to grow into a large area, this takes more time, maybe, a hundred years, it will pass.

With a hundred years, to increase the effect by 30%, Zhao Xin will never do it, he has a card system, and he also knows that the future development is reversed, hot weapons are the best weapons to replace cold weapons, he will definitely not spend a huge amount of time on the longbow, with this effort, it is better to get some crops that are conducive to people's livelihood and economy, such as cabbage, carrots and cauliflowers.

Of course, the role of these vegetables is only to enrich the nutritional structure, especially carrots, which are healthier foods, and the real important thing is always food crops, higher yields, more suitable for China's food crops, native to the Americas, especially South America, sweet potatoes, potatoes, corn, the three basic grains, are almost the root of the rapid development of the Manchu Qing Dynasty.

Perhaps in the future, after the gradual investment in the navigation industry, Zhao Xin will be purposefully dispatched to find these crops, which is also the foundation for China's future.

China has a huge heritage, when there is no territory, the population will quickly reach the peak, under this premise, population pressure will become the biggest pressure of the dynasty, only to continue to increase grain production.

Another marijuana bar. The birth time can be repeated before the Yin Shang Dynasty, and it was the most important source of clothing for ordinary people, and Mai has always been the clothes of the poor because of its cheapness.

Compared with the cotton of later generations, the output of hemp is not too large, different from silk, silk as a bowstring, will not occupy the normal share, from the waste can be extracted, because the demand is quite small, hemp is not the same, in terms of weight, its weight, at least four or five times more than silk, in order to form a large-scale output, the production of hemp needs to be promoted to a certain extent.

The improvement of flax and hemp for bowstrings may be between 5% and 7%, and such an improvement is not as good as the use of silk, the process is more mature, and an ordinary woman can combine relatively short flax into a suitable, enough bowstring for the production of bows, and the effort consumed is much higher than that of silk.

Economy is the last word, the longbow in the future, almost inevitably, will enter the military sequence of the Northern Song Dynasty, when the time comes, at least one million level, hemp bowstring, the price increase is not too large, gathering sand into a tower, it is not a simple investment, so it brings an improvement in performance, it is not worth mentioning.

Yan Hua and Xue Yu and the others, the goal was to focus on the bow, and Sun Ji didn't speak, obviously, he was thinking, but obviously, he didn't get out of the forbidden area of thinking, they didn't think about it at all, the bow and arrow, the bow is only a part of the bow and arrow, since it is on the bow, there is no larger-scale promotion, so why not consider the arrow.

What Zhao Xin said, it is the arrow, this is a misunderstanding, relative to the bow, the promotion of the arrow is longer, from the Stone Age 30,000 years ago, the bow and arrow began to produce, at the beginning, the bow and arrow went on a long line, and even relative to the bow, the overall shape of the arrow has not changed much.

Aerodynamics, even in the future, is a very advanced science, at how much speed, the drag will increase, at how much speed, using another aerodynamic shape, you can reduce the drag, this is not determined by experience and experience.

Often a certain aerodynamic form, in a certain speed, the effect is very good, to another state, it will be very poor, the ancients did not understand these principles, and even in experience, the role of arrows, more is manifested in the lethality, as for how far you can fly out, it doesn't matter.

Actually, it's really important that the correct aerodynamic structure can reduce air resistance and increase the control and range of the bow and arrow.

There are only high-speed things, and some objective laws must be followed, for example, high-speed aerodynamics, air resistance, Zhao Xin, I don't know what the dynamic structure of the longbow is, but on the video of the great god, there is a simple description of the arrow, which strengthens the attack power, and there is also a strengthening of speed, Zhao Xin is a scholar, and the physics at the beginning of high school is just, and it is impossible to reach such a high-end thing as aerodynamics.

But these experiences, these arrows that have been tested by history, are definitely the most suitable, the previous experiment, because of the limitations of all aspects, Zhao Xin can only rely on the existing arrows, using the arrows of crossbow arrows, real longbow soldiers, it can't be so simple,.

According to the description above in the video, he needs to make ordinary arrows, that is, the most classic longbow, the slender kind of arrows, and Mitsubishi arrows, the former has the lowest air resistance, and with the tail, the flight speed and range of the longbow can be improved, the latter, it is simply powerful, Mitsubishi has a huge role in cold weapons such as bayonets in later generations, and the wounds formed cannot be stitched up, and the blood will not stop, this is also the case, the three-edged arrows made of stainless steel also have a strong armor-piercing ability, and shoot anyone, The power is enormous.

These two improvements, but Zhao Xin's source of confidence, in Sun Ji and others, how can not guess the premise, his straight to the point answer revealed, waiting for a greater difference, not to mention, is it really effective, a small bow, what changes can be made, is it difficult to remove the tail wing, or change the arrow, but these changes, can make the arrow shoot farther?

Zhao Xin didn't say a word, and instructed Sun Ji and the others to continue training, today, it doesn't matter how much it costs to let the longbowmen complete the salvo process, and he returned to the village, itself, for the standardized construction of the long arrow, it is already on the agenda, and now it is just a step to improve.

Looking at Zhao Xin, he didn't say anything, just left, everyone looked at each other, no one thought that the final result was like this, and after a long time, Yan Hua asked: "Brother Sun, you said Your Highness......"

"What, isn't it enough to underestimate the losses suffered by His Highness?" Sun Ji's words made Yan Hua shut up directly, and then Xue Yu next to him was a little puzzled, he looked at Zhao Xin, who left without hesitation, and opened his mouth, but he didn't know where to start.