There was a bow with a pulley on the table. Yuwen Wen picked it up, pulled the bow strings, made a bent bow and arrow-shaped, aiming at the bird cage hanging under the eaves outside the window. The bird cage was actually open, and the white parrot was pecking with rice in the cage.

Yuwen Wen "spread" the bowstring, and the invisible arrow "departs from the string" with the power of his mind, accurately "hits" the white parrot.

No, it was the Goguryeo general "XXX" who commanded the army to besiege Niuming Mountain City in Silla.

Yuwen Wen took back the pulley bow, gently stroked the bow body, and imagined the excitement of the enemy's chief general who shot an arrow to death in his mind.

According to the news from the Massachusetts, the Goguryeo general who was shot and killed was said to be very skilled in martial arts. At that time, in order to encourage the morale of the siege soldiers, he personally went to the front line to command.

In order to let the soldiers see him coming to the front line, they were dressed in a fancy way, fearing that others would not know that he was the main general, but they were shot to death by a Silla archer on the city of more than a hundred steps outside the mountain.

The distance of more than one hundred steps is nearly exceeding the effective killing range of ordinary bows and arrows, so this general certainly did not expect that he would be shot to death.

With his death, and the arrival of Silla reinforcements, the Goguryeo army had to retreat, and the besieged Niuming Mountain City finally escaped danger.

The encirclement of Niu Ming Mountain was resolved, and Goguryeo's southward offensive could not be sustained, so the entire army could only slowly retreat north. Without the flank restraint of the Goguryeo army, the Baekje army, which was full of energy to attack east, could only withdraw its camp and retreat and retreat into its own border.

In the sudden outbreak of Goguryeo and Baekje's Battle of Silla, which suddenly broke out this spring, ended in late summer. Both sides (three parties) had not suffered major losses yet, and the war ended.

The Silla envoy who ran thousands of miles to the Central Plaintiff for help had just arrived in Luoyang two days ago and had not even had time to submit the letter of the country.

The situation on the peninsula has returned to calm, and it seems that it can last for at least one or two years.

Yuwen retracted his thoughts, continued to look at the pulley bow in his hand, and wondered whether to sell more than a hundred pieces to Silla.

It is said that when the Silla Archer in Niumingshan City sniped the Goguryeo commander, he used a treasure bow (pulley bow) from the Central Plains. If the rumors are true, it would be useless to sell such a strong bow to Silla.

Yuwen Wen knew that the real pulley bow did not appear until "modern" in the original history, and it was extremely powerful. According to classification, it should be a "modern composite bow". Although the structure looks simple, it has condensed many modern scientific and technological achievements.

Therefore, an amateur like him could not "invent" a real pulley bow in this era.

The current pulley bow is not so much a inferior copy of the "modern composite bow", but rather a copy of the Northern Song Dynasty Divine Arm Bow in history.

The Northern Song Dynasty's Divine Arm Bow is famous, with an effective range of more than 200 steps, also known as the "Pinning Crossbow".

However, because there are no specific graphics passed down in later generations, there are many different opinions on what the Divine Arm Bow looks like, whether it is an alien crossbow or an alien bow.

Related debates are similar to whether African zebras are "white-patterned black horses" or "black-patterned white horses".

According to the adjective "slant" (not horizontally placed) in "slant crossbow", there is a view that the divine arm bow is a bow equipped with a pulley set or even an arrow table.

Regardless of whether this view is correct or not, the pulley set can indeed save effort, so even if Yu Wenwen is not an expert in bowing and archery, he believes that adding pulleys to the bow can save effort as long as the design is reasonable.

For the same person, under the premise that his strength remains unchanged, he can use the pulley to draw a bow with stronger strength. When aiming after the bow is drawn, he can also maintain his aiming state for a longer time with a labor-saving time.

The principle is definitely correct, but it is not easy to implement it. If adding pulleys to the bow cannot ensure reliability and effectively reduce costs, it is no different from adding to the snake.

After years of exploration, a few military weapons supervisors in Zhou State can make pulley bows similar to the effect of the Divine Arm Bow. Of course, although the effective range is increased, it cannot reach an exaggerated distance of more than 200 steps, and the effective range is about more than 100 steps.

Things are made, but the problem is that they have the advantage of dozens of steps more than ordinary bows and arrows, but in fact they can't even add icing on the cake in battle formations.

"There are only three arrows in the face of the battle." The pulley bow can allow the archer to shoot one or two more arrows at most, but the price of a bow is more than twice that of an ordinary bow. It is very troublesome to carry, store and maintain it every day.

The cost doubles, the troubles increase, but the combat power does not double. Therefore, except for a small number of sharpshooters and performing precise sniper missions, the pulley bow can only show off when hunting, and it is not very useful.

In order to develop pulley bows, Yuwen Wen invested a lot of manpower, material resources and funds. Now the products have become useless and must make up for the loss. So he thought of "arms sales" and "returned to the capital" by selling pulley bows. The target of arms sales is Silla.

According to the established national policy, letting Goguryeo, Baekje and Silla on the Haidong Peninsula contain each other is the best choice for Zhou State. Because the Three Kingdoms are busy with melee, Zhou State can calmly develop Liaodong.

The idea is good, but the reality is not satisfactory. Goguryeo and Baekje have come together to deal with Silla. The Japanese country opposite the sea is originally an allies of Baekje, so it would be nice if they don’t join in.

The reality is that Silla has to face the enemy in the west and north, and if there is any slightest disturbance, he will send envoys to Chang'an for help. At this time, if the Zhou Kingdom does not act, the balance of the peninsula will be easily broken.

If Zhou State comes directly and sends troops to attack, the balance between the three countries will not be maintained, so it is a good solution to appropriately strengthen Silla's military so that it can resist the attacks of the two countries.

Firearms cannot be sold, so selling pulley bows gives Silla archers an advantage when shooting against the enemy, and can defend the city for several more months.

The technical difficulty of pulley bows lies in pulleys. The pulleys must be made of steel and must be processed into strange shapes. For this reason, special tools must be used. Therefore, if a buyer wants to imitate, it is difficult to make imitations of similar power at a low cost. It is better to buy them.

Now, pulley bows have performed well in actual combat. I think Silla will add orders, but arms sales are not enough to rely on the small Silla market and cannot bring considerable profits to related industries.

So we have to sell arrowheads and strive to sell one million arrowheads per month.

One million arrowheads sound exaggerated, but the monthly output of arrowheads is 100,000 just for Luoyang Military Artifacts Supervision.

Yuwen Wen turned out of the room, came to the next yard, and walked into the factory where the machines roared.

In the factory, there is a newly put into production of Luoyang Military Equipment Supervisor’s batch production machine. The cost is 100,000 jin, steam power, five people operated, and when they were fully started, there were more than 3,000 new armor-breaking arrows in Nissan.

The main military equipment supervises newly put into production have to pay back the capital before they can make profits for the court. They must accept large orders to sell new arrowheads, and the target market is the countries of India.

The shape of this armor-breaking arrowhead is a cylindrical base, triangular head (with blood groove), short but sharp, and is optimized by countless experiments. It specializes in the armor-breaking leaves. The armor-breaking effect is very good, and the killing power of shooting armor-free targets is also good. It is also suitable for batch production using machines, and each piece costs 20% off.

The ex-factory price is 5 cents per coin. After being shipped to Tianzhu, the discounted price is 35 cents per coin (deposited into copper coins).

In the turmoil and the princes attacked each other, the cost of making arrowheads by blacksmiths in the territories of each prince was converted into copper coins, and the minimum cost was 50 cents, and the armor-breaking effect was still poor.

The strong price contrast will make the princes understand what it means to buy it than to make it.

The princes bought arrowheads supplied by the Nanyang Trading Company, and asked the craftsmen to put them on the arrow shaft and then glued them on the arrow feathers, so that they could use them. They seized the time to save countless sinful people.

However, the shape of this arrowhead determines that the armor-breaking ability of mail armor is weak, and the ring-lock armor sold by Nanyang Trading Company is one of them.

Yuwen looked at the roaring machine, the arrows falling into the dustpan, and thought about the conversation:

"The enemy soldiers have ring lock armor to protect themselves, and they have more than ten arrows in their bodies, but they are still jumping around. What should I do?"

"It doesn't matter, there are armor-breaking arrows that specialize in breaking ring lock armor. Please find out?"

"So, what if the enemy soldiers pierce the ring-lock armor inside and the outer armor how to break it?"

"Armor-breaking weapon pulley bow, and special arrow-breaking arrowhead, please learn more about it?"

Thinking of this, Yuwen Wen raised his eyebrows, and Tianzhu was "the world was in chaos and many countries were in constant conflict". There were a large number of incense medicine in the territories of various princes, and cotton was produced and the purchasing power was very strong. It was simply the best market for arms sales.

In front of him, the sound of arrows falling into the dustpan, and the sound of each other colliding with each other seemed to him to be the sound of impact between copper coins.

Outside the factory, a "pinch of hair" of white parrot flew into the factory and landed on Yuwen Wen's shoulder. Hearing the crisp sound of "ding ding dangdang" and shouted at the top of his throat:
Chapter completed!