My son A Fei has the appearance of a sword master

Chapter 128 Revolver and Mortar
"Tianxin, there seem to be many more buildings in the factory than in previous years?"

In the park, Li Tianxin accompanied Zhu Jianshen on the central main road, with neatly arranged factory buildings on both sides.

These factories are very spacious, often covering an area of ​​thousands or even thousands of square meters.

The factory buildings of the Daming Factory were first constructed of wooden houses with tile roofs.

However, such a factory building is relatively weak in fire protection and lighting, which is not conducive to production.

After several years of development, Daming's industrial level improved, and all factories in the park were gradually replaced with steel-frame structures.

The roof is also an iron roof, occasionally mixed with large pieces of transparent glass to increase lighting.

This kind of factory building has full fire protection function, because steel will not burn, and the lighting conditions have been greatly improved. There is not much difference between the factory building and the open air.

Hearing Zhu Jianshen's words, Li Tianxin nodded and said, "Yes, it was in its infancy. It was mainly about research and development and didn't need so many factories."

"After the advent of the steam engine, it gradually started to be put into production, and the factory building was not enough. In the past few years, it has been added one after another, and it is now like this."

Li Tianxin pointed to a factory and continued: "I set different factories as different 'workshops'. For example, this factory is a 'die-casting' workshop, which is mainly responsible for casting rough parts."

He pointed to each factory building one after another and introduced: "This is the 'machine tool' workshop, which mainly uses lathes, bench drills, milling machines, punches and other machine tool equipment to finish processing various parts."

"Over there is the assembly workshop, which is where various parts are assembled into complete machinery."

It is a pity that all kinds of machine tools in this era are manual. CNC machine tools are still far away from the Ming Dynasty. Otherwise, the production efficiency and precision would have to be raised to a higher level.

Li Tianxin only gave a general introduction to the functions of each workshop, without going into details about the various machines. Zhu Jianshen didn't understand them anyway.

He just accompanied Zhu Jianshen around the various workshops and let him see with his own eyes how a complete piece of machinery was manufactured step by step.

The first half of the industrial park is an ordinary production workshop, which mainly produces various mechanical tools.

The back half is surrounded by another wall, which houses the military production workshop.

"Currently, the weapons I produce for the Ming Dynasty's army are mainly rifles and mortars, as well as a short gun called a pistol, which is a close-combat self-defense weapon."

Li Tianxin took Zhu Jianshen to the shooting range of the factory, explained to him, and at the same time ordered someone to get the pistol.

The technical manifestation of the mortar is basically on the shell. The gun mount is very simple, it is a frame and a barrel with a firing pin at the bottom.

The firing method of mortar shells is the same as that of bullets. They are all designed in a single package. Once the propellant explodes, the entire shell is ejected without even shell ejection. The barrel is equivalent to the shell.

If you can make bullets, you can make artillery shells. The slightly more difficult part lies in the impact fuse on the top of the shell and the stability of the shell.

Because it must be ensured that the cannonball is shot out like an arrow, with the top pointing down when moving in a parabola. Only in this way can the impact fuse be pressed against the ground to detonate the cannonball.

This places extremely fine requirements on the shape and size of the projectile body, as well as the charge.

Therefore, the production efficiency of mortar shells is much slower than that of bullets, and only about two hundred qualified shells can be produced per month.

Today, the factory only has a reserve of more than 3000 pieces, which is enough to fight a few small-scale battles.

More than 1 rounds of bullets can be produced every month. Currently, there are about 15 rounds in reserve. Six hundred rifles are allocated, and each gun can be allocated 250 rounds, which is quite sufficient.

"So this time when fighting on the grasslands and southern Xinjiang, the army still uses 'flying thunder cannons' and grenades as its main firearms."

"Mortars and rifles can be assigned to the navy and used on warships. The shortest range of this thing is forty feet and the maximum range is five miles. It is an absolutely invincible artifact at sea."

After listening to Li Tianxin's words, Zhu Jianshen just thought about it briefly and realized that this arrangement was the most reasonable.

Because the naval operation involved a beach landing.

Large warships cannot dock, and naval troops need to land in small boats. They are living targets within this distance. The enemy's bows and arrows and trebuchets will cause huge casualties to the soldiers.

If there are mortars and rifles in the distance to suppress and cover the beach landing, the casualties during the beach landing can be greatly reduced.

Compared with mortars, the firing speed of thunder cannons is ultimately slower and cannot provide a good suppression and cover effect.

According to Li Tianxin, mortars can not only hit five miles away, but can also accurately strike targets within sight.

In this way, bombarding the enemy's trebuchet positions with mortars, and then shooting enemy archers with rifles can perfectly cover the landing of one's own soldiers.

Before the soldiers disembark, they can summon a round of hand grenades. When they get closer, they will still have arrows in their sleeves. By the time the soldiers come into contact, the enemy may have been almost dead, with only a few people left.

Flying thunder cannons are also the so-called "heartless cannons".

The wall of the barrel is not very thick and is very light. One person can carry it and launch a round explosive package. The longest range is only more than 300 meters, and the killing range is three feet in radius.

Later generations of thunder cannons used gasoline barrels, which were just a layer of iron. They did not dare to put too much propellant, so the range was only about 200 to [-] meters.

The flying thunder cannon made by Li Tianxin is slightly thicker than a gasoline barrel, so it has a longer range.

It's not that it can't be farther, it's just that if you go farther, you need to add more gunpowder, which can easily cause the chamber to explode.

If you want to pursue range, there is no need to use flying thunder cannons. It's not like Li Tianxin can't build smoothbore artillery.

It's just completely unnecessary. A serious front-loading smoothbore cannon has a very thick barrel wall and consumes a lot of steel resources. In Li Tianxin's opinion, it is a waste.

The steel consumed by one artillery piece is enough to make five or six flying thunder cannons.

Moreover, in this day and age, apart from siege warfare, it is basically a battle between people, and there is no need for any offensive weapons at all.

However, at present, the main enemies of the Ming Dynasty are the nomads in the north and the Japanese pirates in the southeast sea. There are basically no cities to attack and no strongholds to break.

As a result, artillery is naturally useless, and flying thunder cannons are enough to dominate the cold weapon battlefield.

Li Tianxin's plan to attack southern Xinjiang was to advance by land and water simultaneously. The army would attack Annan from the Provincial Envoy Department in Guangxi, while the navy would go straight from Haikou to the Annan coast to conduct a pincer attack on both sides.

After defeating Annan and establishing a firm foothold, it will expand to Laos, Siam, Chenla, Champa Pura and other countries, and then go straight to the Kingdom of Malacca, and eventually annex the entire Southeast Asia.

As long as Southeast Asia is conquered and relevant resources are obtained, Ming Dynasty's industrial development process can move forward again and enter the electrical age.

After reaching this point, Ming Dynasty will need to settle down for a few years, and its focus can shift to "enlightening people's wisdom" and popularizing scientific knowledge to the people.

Before Li Tianxin was reborn, although he was a top student in science, the development of the entire country could not be attributed to him alone.

Then he has to work hard all his life, so how can he enjoy life and pursue martial arts?

So by teaching knowledge to others and letting more people work together to promote technological development, he can relax.

When the time comes to take a group of relatives and friends, take a boat trip around the world, and go to the American continent to buy some souvenirs, those days will be called comfortable.

……

When we arrived at the shooting range, the factory man arrived carrying a wooden box with six gleaming silver revolvers inside.

Li Tianxin picked up one, opened the magazine, and loaded bullets into it. He explained it to Zhu Jian again and again: "This is called a revolver. It has an effective range of ten feet. It can fire six bullets in a row. It is used for close self-defense."

After loading the bullet, Li Tianxin flicked his hand and the bullet box bounced back. Then he raised his hand and fired at the target 20 meters away.

"Bang bang bang bang bang bang" six shots in a row, all hitting the bullseye. Then he put down the pistol and smiled at Zhu Jianshen who started to load the bullets himself: "In the future, when walking around the world, you can let the guards carry one each."

Zhu Jianshen nodded happily when he heard this, turned around and said, six men and six women, twelve Xichang fanzi behind him: "You all can come up and give it a try later."

"Yes, son."

When the fans were out, they called Zhu Jianshen and Wan Zhen'er son and wife.

After Zhu Jianshen, Wan Zhen'er, and Huaien all tried the gun, Xichang Fanzi was divided into two batches and shot eighteen rounds each, and they were basically familiar with the operation of the pistol.

This thing is indeed more powerful than the sleeve arrows. They have another powerful weapon at their disposal, so they are very happy.

After walking around the factory, they went to the Yumen River behind the factory and saw some mortars.

The person in charge of operating the gun was a factory stall clerk. After Li Tianxin designated a target, the stall clerk immediately stretched out a thumb and narrowed one eye to look at the target, a small hill on the other side of the river.

Zhu Jianshen asked curiously: "Tianxin, what is he doing?"

Li Tianxin smiled and said: "Measuring the distance."

Zhu Jianshen asked: "He can measure the distance of that hill like this?"

Li Tianxin said calmly, "Just take a look."

The stall used the "jumping eye ranging method" passed down by Li Tianxin. When the Chinese army did not have measuring tools in later generations, the artillery used this method to measure distance.

The principle is: by estimating the size of the object to be measured and combining it with the similarity triangle principle, the approximate distance of the object to be measured from us can be calculated.

This method is based on the distance between the two pupils, which is about one-tenth of the length of one's arm. Multiply the width of the measured object on the ground by ten to get the distance from the standing point to the target.

The specific method is: raise your right arm horizontally, with the thumb pointing upward, the upper arm perpendicular to the body, close the left eye, and cover the object being measured with the thumb by rotating the waist.

At this time, the right eye, thumb, and the object being measured are on the same line.

Then open your left eye and close your right eye.

At this time, you will see the object being measured appear on the left side of the thumb, with a lateral distance.

This requires estimating the size of the object being measured, and judging the lateral distance from the object being measured to the position pointed by the thumb based on the size of the object being measured.

Multiply this lateral distance by ten to get the distance of the measured object from us.

There is a unique calculation method here. In addition to learning this calculation method, the gunner must also go through a lot of practice and accumulate a lot of experience in order to achieve accurate measurements.

The eye-tap method is a distance measurement method that relies heavily on experience.

After a while, the factory stall owner already knew the distance to the target. He immediately squatted down and began to turn the height and direction machine cranks on the mortar to adjust the shooting angle.

Seeing this, Zhu Jianshen asked curiously: "How far is the target?"

The stall owner kept moving his hands and said without looking back: "Back to the emperor, about 760 meters."

Zhu Jianshen looked at Li Tianxin blankly and asked, "How far is that?"

Li Tianxin smiled and said: "About 240 feet."

Zhu Jianshen said in shock: "Can the measurement be so accurate?"

Li Tianxin said: "The first shot may not be completely accurate, but by adjusting the impact point of the first shot and adjusting the second shot, it will basically be able to hit accurately."

After the gear head adjusted the angle of the mortar, he immediately took out a mortar from the ammunition box on the side and raised it to the muzzle, then let go and lowered his head.

"tom"

The barrel made a muffled sound, and Zhu Jianshen and the others all stared at the target hill.

More than two seconds later, a puff of smoke rose not far from the left front of the hill, and it took another two seconds for the explosion to be heard.

After seeing the impact point of the cannonball, the stall head immediately readjusted and then took out another cannonball.

"Boom...boom"

This time the shells were impartial and hit the hill accurately.

"Clap clap clap..."

Zhu Jian was so amazed that he couldn't help but applaud. Others also applauded when they saw this.

The stall owner couldn't help but blush when he showed his face in front of the emperor.

"It's so powerful. I, the Ming Dynasty, have this sharp weapon. I can definitely conquer the world and conquer the world."

Li Tianxin smiled and said: "Where is this? This mortar is just an entry-level artillery piece. Only when the rocket launcher is built in the future will you know what it means to be overwhelming."

"As soon as that thing came out, even a hundred thousand troops were wiped out in an instant."

"There are also howitzers that can hit dozens of miles away. We can level the enemy's city without even seeing the enemy's face."

Zhu Jian took a deep breath. A hundred thousand troops were destroyed in an instant, and a city dozens of miles away was destroyed. What a terrifying weapon that was?

Wan Zhen'er said in disbelief: "If it's hundreds of feet, it makes sense. After all, you can see the target. You can't even see the target from dozens of miles away. How can you hit the target?"

Li Tianxin explained: "This is why I want my eldest brother to attack southern Xinjiang. When our era advances further, it will no longer be difficult to transmit messages thousands of miles away."

"At that time, let the scouts touch the vicinity of the target, and then report the target's location information to the gunner, and the gunner can calculate the target location."

Wan Zhen'er didn't realize it, so she didn't argue any more. She just asked curiously: "Tianxin, why do you know so much? How can you be sure that something that has not been created yet can be created?"

Li Tianxin smiled and said: "Of course it is a calculation. As long as some things are started, we can use them as a basis to calculate backwards."

"This is the same as martial arts. In the earliest times, there was no such thing as martial arts in this world."

"But in the ancient times, when people were struggling to survive and fighting for their lives with the ancient ferocious beasts, they explored various martial arts methods to protect themselves and their lives, and gradually developed martial arts."

Zhu Jianshen said sincerely: "It's like you comprehend the unparalleled swordsmanship in the process of fighting with others."

Li Tianxin nodded and said, "That's exactly it."

Wan Zhen'er sighed: "But there are too few talents like you in this world. It is not an exaggeration to say that they are rare in a thousand years."

Zhu Jian said with a deep smile: "But if I meet such a talented person who is rare in a thousand years, and say that I am the emperor with the most luck throughout the ages, no one will object, right?"

Li Tianxin said proudly: "Not only is your luck the best, it's not an exaggeration to say that your luck is overwhelming."

"Ha ha ha ha……"

(End of this chapter)