Open an aircraft carrier to fight against Japan

Inex shook his head while muttering something, he spoke German, and the translator was not available, so Lin Yuan couldn't understand at all, but Lin Yuan heard that what he said seemed to be a word, so he silently wrote it down That pronunciation - Moglixi.

Inex inspected all the steel sheets he had picked up, and left the room in a daze. It happened to be the noon break. Lin Yuan found an interpreter and asked, "What does 'Mugliesi' mean? "

The translator was stunned and said, "Impossible!"

Lin Yuan asked, "What's impossible?"

The interpreter smiled helplessly and said, "I mean, the word means 'impossible'."

The two looked at each other and smiled, Lin Yuan knew that it was a success!

Inex always believed that the steel used for the 1000mm armor had not been heat-treated, so it was relatively soft, and it was possible for the shell to penetrate it, but the result of the metallographic microscope was: the steel used for the armor had been heat-treated, and There is a lot of pearlite in the metallography, so the surface hardness of this steel plate must be very high!

This surprised Inex, he couldn't imagine what kind of shell could penetrate such a thick steel plate!So I walked out in a daze.

Did Lin Yuan use some advanced weapon?In fact, no, Lin Yuan also knew that the shells fired by the 152mm artillery could not penetrate the 1000mm high-quality steel armor anyway, so the steel on that board had not undergone heat treatment at all. There is a special treatment, that is: the inside of the steel plate is empty.

Of course, the steel plate wall still has a certain thickness, so when they knocked on the steel plate, they did not find the pattern inside the steel plate. Where the shell hit, the unburned gunpowder smoked the side of the bullet hole black, and the distance was far away. Can't see it's empty inside.

Strictly speaking, the hole formed by penetrating a solid steel plate and a hollow steel plate must be different, but the study of the damage effect of the shell on the target belongs to the category of terminal ballistics, and in this era, this discipline has just started, and the difference It was so small that it was almost imperceptible to the naked eye, so Lin Yuan was not worried at all that they would see the flaws.

Where did the steel pieces picked up by Inix come from?During the time when Lin Yuan made them wait, the people of the Beijing ship had already picked up the scattered debris on the ground, and then replaced them with heat-treated steel pieces. These steel pieces were picked up by Inex.

After this series of careful planning, this group of people has begun to believe in the myth that the Ryukyu naval guns are infinitely powerful. Lin Yuan did not directly proceed to the next step, but arranged a sightseeing tour for the foreign experts in the afternoon. The place to visit is the "China and Ryukyu, connected from generation to generation" theme museum. The museum exhibits the edicts of the Chinese emperors canonizing the Ryukyu kings, the tributes from the Chinese courts, etc., fully demonstrating that Ryukyu is an inseparable part of China.

That Inix couldn't bear it long ago, and wanted to ask how the naval guns were so powerful, but Lin Yuan deliberately ignored him, and at night, Inex dragged an Englishman to come to Lin Yuan , the Englishman said: "We want to have a good chat with you."

Lin Yuan picked up a piece of paper at hand and said with a smile, "No way, according to the schedule, we will show you the 'living cloth' in a while."

Inex couldn't understand Lin Yuan's words, the Englishman was confused when he heard the word "living cloth", and didn't know how to translate it, Lin Yuan stood up and said, "It's time, let's go. "After speaking, he took them to a big room.

The room is stepped, very similar to a modern movie theater. Other people have already been seated. Lin Yuan arranged the two of them, walked up to the front desk, and said with a smile: "We are about to show you the latest entertainment technology in Ryukyu. Please watch it. !"

At this moment, a piece of snow-white cloth was put down on the front desk, and then the black cloth on the window was also put down, and the room was pitch black. In the highest room, a ray of light shot out with a "snap", projecting on the cloth at the front desk. , everyone let out a burst of exclamation, but a few people whispered to the people around them: "Isn't this just a movie!"

The piece of cloth on the stage is actually the projector screen of the Beijing ship, and the bright light behind it is the projector of the Beijing ship. The original movie has already appeared at this time, and Edison has already shown the movie, but at this time The movie was still in its infancy, with no sound, no editing, and no special effects, so those few people only knew the principle, and hadn't seen too many movies, so they all watched them attentively.

At this moment, a cannon appeared on the screen, and then the other parts gradually disappeared, leaving only the barrel and the firing mechanism. At this time, the barrel seemed to be cut open by a knife, and the structure inside the barrel was clearly displayed Come out, a cannonball is placed in the medicine room, ready to go.

An expert looked at the doorway, but Inex saw something strange at this time, that is, the appearance of the shell was simply too strange. It was a slender rod. Two cylinders grew out, and the two cylinders supported the long rod in the barrel.

At this time, when the firing pin moved, a ball of fire was emitted from the cartridge, and the long rod flew out of the muzzle. In order to allow people to see clearly, the flying speed of the long rod was very slow. After the long rod flew out of the muzzle, the The cylinder fell off slowly, and after flying for a certain distance, the long rod penetrated a target board, and the movie ended.

This movie is only less than two minutes long, but everyone is not surprised, because compared with the original movie, 2 minutes is considered a feature film!At this time, the black cloth was raised, and oil lamps were lit on both sides of the wall. Lin Yuan walked up to the front desk and said with a smile: "The movie you saw is the demonstration diagram of the firing principle of the shells we used this morning. We call it Armor-piercing rod."

Then Lin Yuan said with a smile: "I hope the first day of the visit has left a good impression on everyone, everyone should have a good rest."

Suddenly a man stood up and asked in Russian: "Can you tell me more about this rod-type armor-piercing projectile?"

Lin Yuan said: "Okay, then I will talk more. I believe everyone knows that the greater the kinetic energy of the shell, the stronger the ability to penetrate armor. I wonder if you have considered that the shell with the same kinetic energy, if the mass and The speed is also the same, so what shape of the shell has the strongest armor-piercing ability?"

Seeing that no one answered, Lin Yuan said: "A piece of armor plate can be regarded as having the same characteristics of all parts, so the energy required to penetrate a hole per unit volume is also the same, so the smaller the head area of ​​the shell, the faster it can penetrate. The deeper the hole, the more slender the shell will be.”

"If the shell is made slender, the caliber will be smaller, and the barrel will be smaller accordingly, and the propellant capacity that can be loaded will also be smaller, so the shell cannot reach a high speed. In order to solve this problem, we design has the following structure."

After Lin Yuan finished speaking, he made a gesture to the back, the projector was turned on again, and it was frozen on a picture, on which the cylinder was falling. Lin Yuan picked up a long stick at hand. In fact, he was more accustomed to using a laser pointer. However, there were no laser generators in this era.

Lin Yuan pointed to the fallen cylinder and said: "We designed this structure, which can make the outer diameter of the shell consistent with the inner diameter of the barrel, and can seal the gas generated by the propellant behind the shell."

The Russian asked again: "Then how did the cylinder fall off after leaving the barrel?"