The cannon is nothing good. If a cast iron two-pound cannon is only used to hit a hundred rounds and not explode, the cannon body must be weighed to 200 pounds. The small cannon with a diameter of one inch is two inches thick. Lao Guan thought it was not suitable, so he simply didn't build it.

The copper cannon is light, with a caliber of one inch, a muzzle of two inches, a tail of three and a half inches, and a body of three and four feet, only ninety-six and a half pounds. It is strong and durable. Moreover, the copper cannon has another advantage. When it is about to explode the chamber, it will bulge first and then blow it up before it is blown away, which can avoid danger.

It’s expensive. One 2-jin cannon is counted as waste, and the material is thirteen taels of silver.

It’s okay to use the insurgent cannon. There is no need to use such expensive things in the ship cannon. The iron cannon with a capacity of more than 200 kilograms is only more than four taels, which is also suitable. The biggest problem is that the iron cannon cannot be made big, and even a big mule cannot be carried.

Lao Guan had another cannon for Chen Mu to inspect. It was an iron-core copper-shell cannon, which was heavier than a copper cannon and durable than an iron cannon. The same shape was 147 kilograms, the material cost was 6 taels, and the working hours were more than both, because the mud mold had to be made twice, one iron core, and one copper shell.

The new gun is lighter, and the shells they shoot are also smaller and powerful. They can hit 270 steps. The shells spread strongly outside 270 steps, and they are completely inaccurate outside 500 steps. However, their lightweight characteristics can also shine in the war on the way to the next road.

The new type of gun cart was also made. The gun cart dragged by a horse has two wheels. The extended anti-crank iron cannon stand can fall to the ground when placed, which can help the gun remove recoil well. It is equipped with a handle for spiral adjustment of the gun position of the light gun, which is extremely simple to use.

It includes a complete set of gun body and cleaning tools, twelve encapsulated shells and gunpowder, the copper cannon weighs 252 kilograms, the iron-core copper-shell cannon weighs 301 and a half kilograms, and the shells are ten solid iron cannons and two new shotgun barrels.

At the same time, due to Chen Mu's request, in order to cope with the worst road conditions or the dilemma of exhaustion of mules and horses, there are several removable parts on the cannon stand that only have a small amount of stability. The worst case is that they can be dragged hard by life and can also move.

After all, there are too many mountains, rivers and rivers in the south, and Chen Mu doesn't know if there is any road conditions that allow him to transport troops calmly when the war is approaching.

Artillery is power, and its army must have artillery support during wartime.

If each flag bears one two-jin cannon on his hand and one thousand household has five five-jin cannon on his hand, the enemy who fights the army will collapse on his own after being defeated by one round three hundred steps.

What surprised Chen Mu was that Guan Yuan casting cannon had already made his mind, thinking that every inch larger caliber, the cannon body was three feet and three inches long, so that the cannon can be shot in a straight line as much as possible, which made him very pleased.

The new cannon is still a thirty-three-caliber artillery. This measurement method is relatively simple, because Lao Guan calculates the full length of the gun, which includes both the medicine room and the tail of the gun.

In general, it is an innovation that can be customized for future artillery. The length of the ten-pound cannon can be calculated in turn, which will reach one zhang. Chen Mu feels that when his ship cannon is built, there will be no red barbarian cannons on this land.

"Wei Balang's baby soldiers will be stationed in the artillery factory in the future. No one is allowed to enter and exit when they are idle. Violators will be killed on the spot." When leaving the artillery factory, Chen Mu issued an order like this, "Use mud molds to test the artillery, and try it as a custom. You can use an iron mold to separate the iron molds and mortises together, brush the material that can separate the copper liquid and iron liquid, fill it with iron, and then hang it to another iron mold to fill it with copper water. The mud molds can be broken and then made, which can be much faster."

"As for what is suitable for brushing and how to do it, I don't know much about it. I have to rely on Guan Jiang to try it, and the furnace temperature is also the temperature." Chen Mu knocked on his head and said, "I'll go back and think about a blower. It seems that the temperature of the cannon is better when cooling. Guan Jiang should pay more attention."

Guan Yuangu brought several craftsmen to the outside, watched Chen Qianhu turn over and get down again, and asked, "Guan Jiang turned around and found a penman and compiled the procedures of making cannons into books, which can be passed down from generation to generation in the future."

On the way back to the yamen, Chen Mu always sighed that this era was not magical in training troops. A brand new Thousand House Office gradually developed into a Thousand House with elite soldiers. It was nothing special. What really made him sigh was the Xiangshan Military Weapons Bureau and the Xiangshan Shipyard.

This is the real thing from nothing. From Guan Yuangu, he fired the first bird gun from Guan Lao Er and made the first trunk bed. He originally said that Guan Zuner would take a small position in the Nanjing Ministry of Works, but now he has the Military Weapon Bureau in a blink of an eye, so there is no need to go out to work.

The development of the Military Weapon Bureau is really fast. It only requires technology and skilled craftsmen. Everything else can be provided in Guangdong. The Xiangshan Military Weapon Bureau has created a iron material consumed, compared with Foshan, the largest iron smelting distribution center in the south, which is just a drop in the bucket.

As soon as he returned to the yamen, Shao Tingda, a thousand-household family in Shunde, sat on the threshold of the yamen with a depressed look on his face. A few flag troops of Shunde yamen were standing timidly, and they were really asking for water with the soldiers guarding the yamen.

"Brother, you're back."

"Oh, isn't this Shao Qianhu?" Chen Muzhe smiled and walked around Shao Tingda, who was at a loss, and finally patted him on the shoulder and asked, "Is it beautiful to be a Qianhu?"

Throwing the armor and reins, the soldiers took the horses to the stables. Chen Mu held Shao Tingda and walked into the yamen, saying, "Go into the seat, even if you go to Shunde, it's my brother. Why are you sitting outside? You have your soldiers? Let's rest in the yamen. Zheng Yan went to ask someone to get some wine and food and treat them well."

When he sat in the main hall, Chen Mu still couldn't get down. No one in the Qianhu House of Xiangshan thought that Shao Tingda would be the first to become thousands of households. With their military achievements, it was reasonable that the first ten hundred households were promoted to deputy Qianhu House. The three hundred households in Haojing could be promoted to at most to the assistant positions of various offices.

"Brother Mu, have you done your hand?"

Chen Mu went to the plywood, looked down, moved his arms and smiled, "It's not all right yet, it's almost done - tell me what Shunde needs."

"Oh, it's not comfortable to be a thousand households at all." Shao Tingda sighed long, "Shunde Qianhu has no money, no food, and only after I went there I realized how difficult it was for you, Brother Xiangshan, and I don't have the ability to help you. I can only find Brother Mu to bring reinforcements."

As he said that, Shao Tingda pointed outside with a bitter face and said, "Look at my ragged flag army, this is the best soldier in it. There are more than 400 people in the station. Some old flag army think that I killed thousands of their families and are not convinced. Those new flag army cannot fight and nothing is easy to do."

"I want to borrow money, borrow food, borrow people, Brother Mu helps me."

Only Chen Mu can help with these things, and only Chen Mu is willing to help. He smiled and said, "Recruiting troops first. You have lived in Xiangshan these days, learn how Junyu weaves cloth. Lao Bai and the others are also learning. When the reward is given, they will definitely be sent to the thousand-household deputy-household households. I don't know how the Ministry of War arranged for Chen. If there is no accident, weave silk and wood, and transport them to Xiangshan. They will be collected every year."

"The silver is divided into military households, and the future guard warehouses. All guard officials in the office can only take two points, at least let the flag army eat and wear warmth, and the others enter the office. In the future, the Xiangshan Military Weapon Bureau and the shipyard clearly marked the price of military vessels and ships, and supplying each thousand households."

Chen Mu's words sounded nothing at first, but in fact he wanted the guards to make the supply of raw materials, cash out materials and then return to output, to form a complete industrial chain and a self-contained system in the future.

"Now the two institutes are different from each other, and the treasury cannot be moved. I will pay you a thousand taels of silver from the private treasury, and then transfer a hundred household office from Xiangshan to help you recruit soldiers and train other matters. I will talk about other matters after the imperial court rewards it."

The weight of the copper cannon is known to be 105cm in height and 4.7cm in radius, and the volume is 7286.77 cubic centimeters. It is known that the specific gravity of copper is 8.9g per cubic centimeter, and one kilogram in the Ming Dynasty was 594.6g, and the weight of the copper column was 109 kilograms. It is known that the diameter is 3.4 cm. According to the 85cn of the gun barrel, the same formula can obtain the drilling of the gun barrel. Under absolute ideal conditions, the weight of the gun is 97.5 kilograms. The actual copper is tin-zinc copper alloy, and the tin-zinc weight is lighter, and it may be lighter by another five kilograms.
Chapter completed!