Black Corporation: Joseon - Chapter 56

Episode 56: New Weapons (4)

After praising the elite of the Fuhrer soldiers, King Sejong got to the point.

“Is the President they are carrying on their shoulders the newly created President?”

Hyang immediately answered King Sejong’s question.

“Yes, that’s right. I named him Gap-sikjangchongtong (甲式長統筒).”

In response to Hyang’s response, King Sejong stroked his beard and expressed his impressions.

“Chang Chong Tong… It’s a fitting name. But…”

King Sejong’s eyes were fixed on Jang Chong Tong’s shiny gun barrel. Sejong, looking at the silver-glittering barrel of General Jang’s gun, turned his head to Hyang.

“It’s not copper?”

“That’s right. It’s made of wrought iron.”

“Siusoe?”

Hwang Hee, who had been listening to the conversation between King Sejong and Hyang, immediately intervened.

‘Lower copper is expensive, but Siwoosoe is also expensive…”

King Sejong raised his hand to interrupt Hwang Hee.

“The Crown Prince must have used Siwoosoe because he had something on his mind. It’s not too late to talk about that later.”

“I will follow your

orders.” King Sejong, who interrupted Hwang Hee, gave an order to Choi Haesan.

“I want to see the power.”

“Yes, Your Highness.”

Choi Haesan, who received the order, was next to him. He gestured to the craftsmen standing there. Seeing Choi Hae-san’s hand gesture, the craftsmen immediately brought in a board the size of a human torso. The board was covered with red cloth and had rows of pins on it. Choi Hae-san pointed to the board with his baton. The explanation goes,

“Here comes the parietal plate to be used as a target. Compared to the double armor that is actually used, the thickness of the steel plate was increased by 1 ri and strengthened to 4 ri (approximately 1.3 mm).” ”

Is that so? ”

“Set up the target.”

“Yes, general.”

The craftsmen carried the target to the opposite side of the demonstration site. Seeing the sight of the target being set up a long way away from where the Fuhrer soldiers were stationed, King Sejong called General Choi Hae-san.

” General, how far is it? ”

“It’s about 250 steps (about 300 meters).”

“Hoo! ”

King Sejong’s eyes began to shine with admiration. Meanwhile, the craftsmen who had finished setting up the target made hand signals and ran to the side and jumped into the ditch made under the earthen wall. The

commander who saw the craftsmen’s hand signals told the Fuhrer soldiers He shouted,

“Put up the gun!” ”

At the command of the commander, the Fuhrer soldiers placed the Long Fuhrer they were carrying on their shoulders on the floor.

“Three guns! ”

“Lead gunpowder! ”

“Welfare! ”

“Songja (送子)! ”

“Yeonja (鉛子)! ”

After completing all procedures at the command of the commander, the riflemen returned to their upright shooting positions and the commander gave the command:

“Guns in front! Donghwamo (銅火權)! ”

The Führer soldiers raised their rifles and pulled the rack halfway, then inserted the copper hat filled with wide silver into the stone.

“Pull the rack! aiming! ”

The Führer soldiers fully pulled back the half-pulled racket, put their left foot forward, tilted their bodies, placed the butt on their shoulder, and aimed at a target standing in the distance.

“Fire! ”

Puff poop!

Instantly, a cloud of smoke and a firework came out and disappeared into thin air.

“Exactly! ”

After finishing shooting, the Fuhrer soldiers returned to their standing shooting positions, and the craftsmen who had hidden themselves in the ditch retrieved the target and returned.

“This is amazing! ”

“It’s amazing power! ”

King Sejong and the ministers could not hide their surprise at the recovered target board.

There were nine holes surrounding the target board.

Hyang and Choi Haesan’s faces were filled with pride as they saw King Sejong and the ministers examining the target board with surprised faces. .

“It’s truly amazing. Gwain knew that the power of the gun was strong, but its range was far short of that of a bow. However, this Jangchongtong’s range is similar to that of a bow and its power is incomparable, so it is truly the strongest weapon.” “The

craftsmen did a good job.”

Hyang humbly responded to King Sejong’s praise. Choi Haesan heard Hyang’s answer from the side. He nodded his head vigorously. There were small tears in Choi Hae-san’s eyes as he nodded. At Choi Hae-san’s

strong reaction, Sejong turned to look at Hyang. Sejong saw Hyang’s face smiling brightly. He sighed.

“How much trouble did you put your craftsmen through… General Choi. “Tell me about the process by which this Fuhrer was completed.”

“Yes, Your Highness. So….“

* * *

The process of making a Jangchongtong began with making a tool specifically for making the iron body of the Jangchongtong.

“In order to make a gun barrel with scrap metal, you must also use a special anvil.”

In accordance with the protest order, craftsmen made a special anvil using mulberry iron (high carbon steel). While a typical anvil had a flat top, the special anvil had a long groove in the shape of a semicylindrical pillar whose thickness gradually tapered from a large semicylindrical pillar to a semicylindrical pillar slightly larger than the thickness of the target barrel.

After the anvil was completed, what Hyang ordered was an iron core made of mulberry iron slightly thicker than the thickness of the President.

After the dedicated tools were created, Hyang guided the next process.

Following the guidance of the head, the head of the military, including the late head, began rolling siwooseopan of appropriate sizes.

After the iron plate was properly dried, the iron core was inserted in the center and the steel plate was hammered and rolled on a special anvil. As the iron plate dried and the two ends came into contact with each other, the craftsmen sprinkled a mixture of iron powder and charcoal powder on the touching area and placed it in the kiln. The iron powder mixed with charcoal powder melted in the hot heat of the kiln, filling the wrinkles in the rounded iron plate.

Once the gap was completely filled, the field leaders smoothed it out with a file and at the same time checked whether it was properly filled. Once it was filled without any problems, the round column was beaten to make it appropriately angular.

This was to make work easier by fixing the barrel during the subsequent processing process.

Finally, after heating it in a kiln and cooling it by burying it in ashes, the inside was straightened and smoothed with a drill designed by Hyang.

Once the inside was smooth and it was confirmed that both the outside and inside of the barrel were straight without bending, the craftsmen filed the barrel to give it an octagonal cross-section. Afterwards, I dug out a female screw in the back and inserted a stopper with a male screw – there was a part for inserting the copper hat into this part.

The work didn’t end there. A wooden body made by a wooden craftsman is combined with a trigger and a barrel with a diaphragm. The trigger and sights are made by a craftsman. The spout at the end of the beak is made of solid iron and covered with parts with protruding protrusions on both sides. lost. The hardships began from then on. The barrel of the gun in the drawing produced by Hyang did not have rifling lines. This was the intention of the scent.

“In the future, the number of things to be made, tested, and tested will increase, but I can’t do all of them, right?”

Once the five prototypes were completed, Hyang began full-scale performance testing with Haesan Choi and Icheon.

“First, let’s find out how much gunpowder it can withstand.”

“Yes sir.”

“The previous President Lee put in one nyang. Should we start with half a nyang?”

“It seems appropriate.”

Choi Haesan, Icheon and the craftsmen began the test by filling half a nyang of gunpowder and bullets.

For safety, the barrel was fixed to a fixture, a string was attached to the trigger, and the people hid behind the protective wall.

“Bangpo! Bangpo! Bangpo!”

Bang!

The test, which filled Area 51 with heavy drinking, ended with the person enduring up to one and a half taels of gunpowder.

“Considering the purpose of using this Fuhrer, I don’t think it’s necessary to spend 2 nyang.”

“That’s right.”

“Then let’s try it with explosives.”

In the subsequent test, President Jang withstood up to one and a half taels of silver-type gunpowder. After confirming the results, Hyang changed the test items.

“Then, let’s check what the optimal amount of gunpowder is. It is said that the distance at which Lee Chung-tong killed the Jurchen tribe wearing two-pack armor was 40 paces (approximately 50 meters), so let’s use that as a standard.”

“Yes sir.”

This time, the plan was to reduce the amount of gunpowder. The result of the test was 2 dongs (approximately 7.5 g) of explosives. The bullet fired from the long gun barrel cleanly penetrated the 4-ri-thick steel plate used as the target.

After checking the results, Hyang looked back at Choi Hae-san and Icheon.

“Looking at the power, it seems like it can be killed from a longer distance. The farther away, the better, right?” “

Of course.”

“Then, shall we see if it can be done at 50 steps?”

“Yes, sir.”

Choi Haesan answered excitedly. In the test conducted in this way, a long gun loaded with 2 bucks of gunpowder penetrated the target up to 70 paces (approximately 85 meters). At longer distances, the bullets reached the target, but none of them hit the target even though more than 20 rounds were fired.

’70s is unexpected, isn’t it? Now, I guess I should throw some rice cakes about Kang Seon, right? ‘

Although the score was better than expected, Hyang had no intention of stopping.

And from then on, Choi Haesan and Icheon craftsmen began to find their work no longer enjoyable.

“Looking at the general’s loading process, it seems like too much time is wasted using three guns and firing. Let’s try it without using three guns and firing.”

“But if that process isn’t done, there’s a concern that the bullets will leak out…”

“Why not make the bullets custom-made for the barrel instead?”

Choi Hae-san, who thought about Hyang’s opinion for a moment, nodded.

“It seems worth testing.”

Hyang planned to force people to experience trial and error based on the content of videos they saw on the Internet. In the experiment conducted in this way, Jang Chong-tong fired five rounds and caused a problem.

“It’s difficult to prepare to fire again because the gunpowder residue is stuck.”

“okay.”

“As expected, we have to do King Sejong…”

But Hyang shook his head.

“Think about it, general. Can you afford to fire three guns when cavalrymen on horses that run faster than people are coming at you with all their

might ? ”

started looking for. However, people could not easily come up with the idea of steel wire.

‘Should I get involved in this again? ‘

One rainy day, when I was contemplating whether or not incense was involved, a craftsman who was staring blankly out the window suddenly got up from his seat.

“Ah!”

“What’s going on!”

“How about digging a groove?”

“Digging a groove?”

the craftsman explained, pointing to the ground with his finger.

“Look at that ditch. Doesn’t the stagnant water flow through that ditch? Wouldn’t the same thing be true for a spark of gunpowder? If you cut a long groove inside the barrel, wouldn’t the debris flow out along with the flow of flame? ”

At the father-in-law’s words, Choi Hae-san and Lee Cheon looked at the incense. Hyang nodded.

“It might be worth a try.”

According to the decision of the township, 7 additional rifles were produced.

“Let’s compare the number of grooves, 3, 6, 9, 12, and 15, with the grooves that are not dug, making 2 each.”

“yes.”

The order was received, but the craftsmen had new concerns.

‘How do I dig a groove? ‘ After staying up all night and thinking about it, a special tool was made and the craftsmen dug from 3 to 15 barrels in the long barrel.

In the tests that followed, Haesan Choi and the Icheon artisans faced a new problem. As the number of holes in the barrel increases, the power decreases.

“It’s only natural. The more grooves there are, the more force there will be to leak along those grooves.”

When Lee Cheon pointed out the cause, Choi Haesan muttered with an embarrassed expression.

“As expected, is Segun the only answer?”

“What is the exact result? ”

In response to Hyang’s question, Lee Cheon looked through the book where he wrote down the results and answered,

“Up to 6, the decrease in power was small, but a lot of residue was added. From 9, there was less and less waste, but the power began to drop sharply.”

Lee Cheon’s Everyone was puzzled by the answer.

“Should we go with 9 lines…”

“The problem is that from then on, the power drops to the point where it can be seen…” “

Then is 6 lines the only answer? There’s also the problem of debris…”

Just as Hyang was about to open his mouth, unable to bear to worry about problems that cannot be solved at the same time, Jang Yeong-sil opened his mouth.

“Then, how about twisting the groove? ”

” Braiding the groove? ”

Everyone’s eyes were focused on Jang Yeong-sil at Jang Yeong-sil’s remarks.

Hyang, who was watching from behind, clenched his fist under the desk.

‘Nice man!’

Hyang quickly adjusted his expression and ordered Jang Yeong-sil.

“Jang Byeol-seop properly. Please explain.”

“Yes sir. So… uh… wouldn’t the length increase if we rotate the groove like the screws we use? In that case, even if there were 6 toms, it would be long enough for the debris to escape, and wouldn’t the force of the gunpowder explosion not be able to escape immediately because it spins? ”

Jang Yeong-sil’s explanation fell silent in the conference room. While pondering for a while about what Jang Yeong-sil meant, Choi Hae-san and Lee Cheon shouted at the same time.

“That’s it! ”

“That’s it! I think the right answer would be to taunt the crown prince! ”

Hyang concluded with Choi Haesan and Lee Cheon’s words.

“Then let’s do it.”

As he went to bed that day, Hyang grumbled with a tired expression.

“Ah… the road to Gangseonchong is very long and arduous… The concept of surface area. To explain it at length… What is the understanding that allows you to understand it clearly… Are all humans living in this era monsters? ”

It was decided to twist the grooves inside the barrel, but another problem arose there.

“How many turns will it take? ”

As people were once again confused about this problem, the scent had to come out again.

“Make a prototype in half-turn increments, from half a turn to two turns! ”

“I obey your orders!”

And the craftsmen had to stay up all night again to make a new gun barrel.