"The artillery art? What is this? How could it be heard before? How could it be called the fundamental principle of artillery in the Yangyi's tone? Our ancestors didn't know what artillery artillery technology was like before. Didn't we also build artillery? To be honest, the artillery artillery of the Yangyi was learned from our ancestors."

Zhang Hong muttered a few words in dissatisfaction, but before Zhu Ping'an could speak, he narrowed his one-eye again, and then nodded thoughtfully, "Yes, foreigners are good at calculating and always talk about Sainz. When I was stealing a master in the South China Sea, I always took out a ghost painting talisman before making artillery parts. I thought that foreigners believed in religion and had to chant spells before making artillery. Now I think it's probably the one who calculates the diameter of the artillery."

Zhu Ping'an nodded without comment and said softly, "Maybe, I have never met foreign craftsmen and don't know their habits, but according to the records of the foreign firearm classics, they do like to use public calculations to calculate."

"I'll also teach me how to multiply the artillery." Zhang Hong begged, "If it was indeed as the foreigners said, I would be able to create artillery that was not inferior to foreigners and not to embarrass my ancestors."

"Of course, the firearms originated from my China. I believe that Zhang Jiangshi, you will definitely be able to develop firearms that are not inferior to those of foreigners. I will do my best to know and tell them all. However, I have only a little understanding of the artillery diameter of the artillery, and I know it, but I don't know why. The so-called artillery diameter of the artillery refers to the thickness of the walls of the gun body, which mainly refers to the ratio of the length of the cannon body to the thickness of the gun mouth. I noticed in my latest and most advanced artillery classics of the Ming Dynasty, which contains: "The Yangyi casts cannon guns, and the length, size, thickness, and size, and the measurement of the length, size, thickness, and size. It is really careful.

Heavy, I dare not rely on my intelligence and creativity to make mistakes, so that things can be misleading. The method must be based on the degree of true transmission and comparison. The method does not take the size as the basis, but only the diameter of the gun is used, which is because the size of each gun is different.’ I read many classics and understand that only by designing the size of each part of the artillery in a scientific fixed proportion can the artillery achieve the best balance between weight and power. Otherwise, the gunpowder will either be too thick to increase the weight of the cannon, or the wall thickness is insufficient, which will easily cause the risk of explosion." Zhu Ping'an nodded and said slowly.

Zhang Hong looked serious and couldn't help but feel deeply moved when he heard this. He was inspired and asked quickly, "It turns out that there is such a saying in making cannons. No wonder I always thought that cannons were either too heavy or easily exploded. I didn't know the geometry of proportions as the best balance."

"I don't know how to calculate the diameter ratio of the artillery, and I didn't understand it at that time, so I can't remember it. However, I saw the summary in the book, saying that after countless tests, the diameter of the artillery body and the gun mouth is about 22 times, and the power range can reach a relatively ideal value. In addition, the latest and most advanced artillery book in the Ming Dynasty records that "the Western artillery has a ratio calculation method, and the diameter of the gun barrel is as follows. For example, if a gun is agreed to be a blank diameter of one inch, the gun wall should be one inch thick near the tail, seven inch thick near the ear, and five inch thick near the edge of the mouth, so from the outside, the gun mouth is sharp and the tail is full. The diameter of the ear and the length of the ear should be one inch, and the proportions are used as a fixed rate to push the steps." Zhu Ping'an said embarrassedly, there is no way that he was a liberal arts student, and he saw firearms online out of his modern times out of interest.

This is also a blessing for my good memory. I barely remember it, otherwise it would be even more embarrassing.

"The gun diameter of the gun body and the muzzle is about 22 times, and the power range reaches an ideal value. Sir, does the gun body here refer to the length of the barrel or the overall gun captain?"

Zhang Hong asked for advice.

I am really worthy of being a person who has secretly learned artillery technology from Hongmaoyi, and I am asking this question for my professionalism.

"It refers to the length of the barrel." Zhu Ping'an thought for a while and was sure that he had no wrong answer.

"Thank you. If the artillery diameter technique is accurate, it is really an amazing technology. The length of the cannon body and the power are required, and the key problems of these cannons will be solved. In the past, when we developed artillery, we always felt that the heavier the artillery, the thicker the gun mouth, the thicker the gun body, the more gunpowder it is installed, the greater the power of the cannon, so the cannon body is thicker and the gun mouth is thicker, but the length of the cannon body is ignored. No wonder, I used to think that although the cannon was heavy and thicker, the power was not satisfactory, and there were often blasting incidents. It turned out that the cannon was not as thick as possible, the better."

Zhang Hong said excitedly, and the more he spoke, he became more and more excited. "This artillery multiplication technology is amazing. No wonder Hongmaoyi and his artillery are better than us. No wonder they always feel that Hongmaoyi's artillery is of some size and length. It turns out that there is something. At present, my Ming Dynasty artillery is too bulky and has limited power. The city defense cannon needs great power, and the siege also needs flexibility and easy to carry. With the artillery multiplication technique, the grass-roots can find a balance between weight and power, reduce the weight of the artillery, improve the power of the artillery, and greatly improve the city defense cannon and field cannon."

Zhang Hong was excited and prepared to do something big to improve the city defense artillery and field artillery.

"Zhang Jiangshi, the main enemy at present is the Japanese pirates. I want Zhang Jiangshi to help me develop a light cannon suitable for the south of the Japanese Yangtze River, which is easy to carry and easy to carry. Although the current Fran cannon is powerful, it is too bulky. The range of the bowl gun is too short and its power is limited. At present, a new light cannon is urgently needed to attack the Japanese pirates."

Seeing that Zhang Jiangshi was ambitious, Zhu Ping'an wanted to develop and improve the city defense artillery, field artillery and other artillery, without sweating on his forehead. Even with the artillery diameter, improving artillery is not something that can be completed overnight. It will not be completed in ten or eight years.

At present, the Japanese pirates are urgent. The Japanese pirates are becoming increasingly corrupt and increasingly serious, and there is not so much time left.

So Zhu Ping'an directly pointed out the direction and asked Zhang Hong to develop a cannon suitable for the terrain of Jiangnan.

Instead of time-consuming, labor-intensive and expensive development of a wide variety of artillery, it is better to carefully develop an artillery. Most of the Jiangnan areas are hills, forests, paddy fields, etc., bulky city defense cannons and field cannons are not suitable, and only light cannons are suitable.

"I read the classics of the Western Arts such as Europa in the Hanlin Academy Library, and found that one of them recorded a sketch of the artillery, which was a light artillery developed by the Western Arts. In order to facilitate shooting, the artillery fire was placed in a fixed position, like a tiger squatting and firing at an elevation angle."

Zhu Ping'an briefly described the tiger squat cannon that Qi Jiguang invented in the future, and asked Zhang Hong to use more advanced artillery magnitude technology to improve and develop it. I believe he will not disappoint him.

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Chapter completed!