1959: Carrying the achievement system, she rolled

After knowing that armor-piercing bullets are composed of several components, the next step is to understand what materials each component is made of.

First of all, the wind cap of the armor-piercing projectile. After repeated tests, we learned that its function is to reduce resistance during flight, improve stability, and reduce the chance of ricocheting.

After step-by-step testing, soft materials were used that could be easily destroyed or even melted, which would help the armor-piercing projectile to better complete its armor-piercing task.

The cap of an armored round, however, requires a material with good toughness and a flat surface. Its function is to increase the straightening and reduce the chance of ricocheting.

This kind of cap is welded on the outside of the pointed head of the projectile.

Moreover, the tough material can adapt to the impact and deformation that may be encountered in combat, and can also maintain the stability and penetration of the projectile.

The hood made of soft material covers the quilt.

As for the fabrics such as canvas used for the ammunition belt, the purpose of the canvas ammunition belt is to make the armored bullet more reliable.

Of course, there are also disadvantages. It is easy to get damp and moldy. Once the parts of the armored projectile are moldy, you can imagine what the consequences will be.

However, this is not a problem that needs to be considered for the time being. Since it has not been produced yet, there is no need to consider the storage issue.

The material of the projectile was repeatedly tested and calculated, and finally high-carbon steel alloy was selected.

The material of the projectile must not only consider high strength and high density, but also cost.

If the cost is too high, even if it is developed, they will not be willing to use it, which goes against their original intention of developing armored shells.

High carbon steel is steel with a relatively high carbon content, generally between 0.6% and 1.7%, and has higher hardness and strength.

Of course, there are also disadvantages, that is, the plasticity and toughness are relatively poor.

Nowadays, some molds, bearings, etc. use this high-carbon steel alloy, which is not a rare material.

Finally, the explosive in the bomb body is TNT, which is trinitrotoluene.

Its advantages include not only its hygroscopicity, but also its ability to withstand shock and friction. Most importantly, it can explode when suddenly heated.

This type of explosive is very common and has been around since World War II.

Initially, fine powder was used as a substitute for the explosive filling to prevent the situation where the explosive could not be fired.

The reason for being so careful is to prevent the barrel from exploding. At this time, only the Type 100 tank and the Type 59 59mm anti-aircraft gun can fire 100mm armor-piercing shells.

The cost of an anti-aircraft gun is even higher than that of a Type 59 tank, and it is impossible to borrow it, let alone blow up the other party's gun barrel.

Although that is just speculation, if it really happens, it would not be a big deal to become a mortal enemy, but the main thing is that they cannot afford to pay compensation.

Finally, Director Song gritted his teeth and pulled out his own Type 59 tank.

After a year of research and repeated testing, it was finally time to test how much explosives needed to be filled.

For a whole year, the three teachers and students worked almost non-stop, with a minimum working time of ten hours a day, with no upper limit.

Some problems that cannot be solved require support from other engineers in the institute. For example, problems related to dynamics require Wen Yan's help.

"Old Qin, are you okay?" Director Song's voice was shaking when he asked this question. If his precious baby was blown up, his heart would not be able to bear it.

"There are only 30 grams of explosives filled in, so it shouldn't be a big problem." Qin Chulong's eyes were always on the Type 59 tank thirty meters away. Regardless of whether there was a problem or not, no one was willing to stop after the research was done.

Before this, Du Yimeng had already entered the tank with the freshly-made armor-piercing bullet. He originally wanted to go there himself, but Du Yimeng refused to let him.

She said that his knowledge of armor-piercing rounds was not as good as hers, so it would be useless to go. At that moment, he felt that this student was being a bit rebellious. Should he tell the truth?

He actually wanted Wan Ping to go, but unfortunately Wan Ping was not as good as him. She was indeed more suitable to be the tester than them.

Just as he said, at his age, when it comes to new things, he obviously doesn't learn as fast as young people.

After this incident, it was further proved that what he said was true.

It was clear that when researching armor-piercing bullets, the three people were standing on the same starting line, but unexpectedly, the person who knew the most about armor-piercing bullets was Du Yimeng.

Du Yimeng: Let’s learn about the cheats…

Wan Ping, who was beside Qin Chulong, clenched his hands tightly together, his nerves tense.

"What do you mean by should? Didn't they all fire during the previous test firing?" Director Song was anxious.

"There is no ammunition before." Before Qin Chulong could speak, Political Commissar Yang spoke.

"Old Yang, don't talk..." Political Commissar Yang's words made Director Song's heart skip a beat.

Political Commissar Yang: ...

On the other side, Du Yimeng in the tank was also very nervous. At this time, her neat short hair and two shiny black braids were sacrificed.

If anyone dared to cut her braids in the past, she would cut off that person's life in return. Ever since she started researching armor-piercing bullets, she has been busy doing experiments every day.

Her long hair, which was once her most precious, had become a burden, so she simply cut it off. She thought she would burst into tears and be heartbroken, but the opposite happened.

A neat short hair, especially when you don’t want to take care of your hair, a military cap looks very comfortable.

There were only her and an operator, Huang Yamin, in the tank. The Type 59 tank has a crew of four people. The space is small to begin with, and they also have to take protective measures. Any one more person coming in would be a burden.

So Yu Lang was left outside by her, why did she let him in?

Make her a meat wall?

She calculated that as long as they were well prepared for protection, there would basically be no problem with the people, the problem would be with the tank's launcher.

"Prepare……"

"emission……"

"Hit it out..."

As the operator standing by with a small red flag gave the order, all eyes fell on the tank, and he murmured three words: "Fire out."

Director Song, in particular, yelled at the top of his lungs, "Kill them!", and everyone else did the same.

"boom……"

Everyone looked at the white smoke coming out of the barrel, their faces filled with disappointment. Fortunately, everything was taken into consideration, and the first test shot failed.

Before everyone could react, several figures climbed onto the tank and opened the lid. Among them was Yu Lang.

The first one to come out was Du Yimeng, whose face looked grim. However, she climbed out at a fast pace, followed by Huang Yamin.

"Where are you injured?" Yu Lang was about to speak when he was pulled away by the military doctor beside him.

Now it's time for him to take the stage, and all outsiders should move aside.

"No one was hurt." Du Yimeng and Huang Yamin said in unison. It was the transmitter that was damaged. I wonder if Director Song was mentally prepared?

Fortunately, they had made protective preparations at the beginning, and with little ammunition, there were no casualties.

The others were relieved to see that the two were fine.