Rebirth of the 1980s: The Military Industry Empire

"Did you not think about how to modify it and go back to design it?" Old Zhu reacted, but then felt that Qin Yang didn't seem like that kind of person. No matter what he did, he would give people a feeling that he had arranged it in advance.

"Old Zhu, you only got it half right." Qin Yang said, "The design has already been made. I have to go back and make a few prototype shells in the factory. This technology needs to be kept secret, and it is easy to be leaked outside."

Old Huang nodded: "Don't worry, if there is such a shell, our troops will order it from you. Now, tell us, what is the principle of this shell that can increase the range without rocket propulsion?"

Old Huang's attitude was kind, but if Qin Yang refused to say it, he would probably get angry. How could he sleep without hearing the principle and solving the doubts?

Qin Yang nodded: "Let me ask a question first, after the shell leaves the barrel, what is the main reason that affects the range?"

"Air resistance, but we can't reduce air resistance."

"Why can't we?" Qin Yang said, "In the process of the shell flying, the warhead compresses the air forward, thus forming a high-pressure area at the warhead. At the same time, in the process of the shell flying forward, the air at the tail of the shell decreases, so a low-pressure area is formed at the tail. This high-pressure area and low-pressure area work together to generate huge air resistance. We can't reduce the high-pressure area of the warhead, but we can reduce the low-pressure area at the tail of the shell, or even make the low-pressure area disappear. The air pressure on the warhead and the tail is the same, which can greatly increase the flight distance of the shell."

Ordinary shells are cones, sharp in the front and flat in the back. In this way, when the shell flies forward, a low-pressure area is formed behind the shell's butt. If the shell is fast enough, it may even become a vacuum there. This principle is similar to the process of pulling up the air cylinder, so the air pressure difference between the front and rear can generate a strong resistance to the shell's flight, which is much greater than air resistance.

Therefore, reducing the low-pressure area at the tail of the shell is very important. The range improvement depends on this!

"How to eliminate this low-pressure area?" Old Zhu asked. Before being appointed as the chief designer of the third-generation tank, he was engaged in artillery. Naturally, he understood what Qin Yang said. The reason was found, but how to solve it? He was still at a loss!

Now, Dr. Bull has not come to the East to give lectures, nor has he brought his invention to the East, so now, no one in China knows about the jujube shell.

But, everyone can think about it.

"The front is sharp, and the back is also sharp. This shell is very similar to a jujube!" Old Huang said.

"Old Huang, you are right. Let's name this shell jujube shell according to what you said." Qin Yang gave Old Huang a special honor.

The train was still running, and the grassland gradually moved away. When entering the mountainous area, the east had already begun to show a fish-belly white.

Xu Jianshe slowly sat up from the bed. He felt that his head was as painful as if it had exploded. In his memory, there was only the scene of drinking, and then he didn't know anything. Looking at the surroundings, he should be in the staff dormitory.

How did I get here?

Xu Jianshe stood up, walked to the washbasin, washed his face a few times, sobered up a bit, and continued to walk outside.

The soft wind blew on his face, and he suddenly stopped. No, he was not in the dormitory of Harbin First Machine Tool Plant, he came to the grassland! He came to deliver the 321 chassis!

Where is General Qin?

"Where is General Qin?" Xu Jianshe grabbed a passerby. The man shook his head: "I don't know."

"Don't know?"

Xu Jianshe frowned. He was a leader, so he was alone in a dormitory, not with the others. The others were still drunk and hadn't woken up yet. Xu Jianshe didn't bother to call the others. He looked around and found the direction of the office building, and strode towards it.

The director's office! This is it! Go directly to their leader! Xu Jianshe pushed open the door and saw the people inside, feeling a little relieved.

"Director Fu, where is General Qin?"

"General Qin left last night."

Left?

"General Qin promised us to increase the range of the 152mm howitzer. How could he leave?"

"He should be researching it."

"What? He just started researching?" Xu Jianshe's face darkened. The research of a shell takes three to five years! Yesterday, General Qin looked so confident, and thought it was developed, but I didn't expect that it was just starting to be developed?

Was he tricked by General Qin?

"Achoo!" Qin Yang sneezed. What's going on? Is it because of the fluttering catkins? He looked at the factory close at hand and touched his nose.

He did not go to Institute 201 with Old Huang and others, but returned to the factory, after all, he needed to produce the jujube shell. With that Xu Jianshe's character, he would probably come to the capital to find him?

It's not a big deal, something that can be made in an hour or two.

Wait, why is there a familiar figure at the door?

"Chaozi, what are you doing here?"

"A group of Americans came, saying it was for the American Tiger project." Zhang Chao said anxiously, "Now, the factory leaders and Teacher Nie are accompanying this group of Americans in the factory for inspection. Teacher Nie asked me to wait for you here. As soon as you come back, take you there immediately."

American Tiger project? The Americans are really quick! Qin Yang nodded: "Okay, let's go over immediately."

When Qin Yang arrived at the destination, his face was a little ugly. What's wrong with his father? He actually led the Americans to the production workshop of the tank gun? Is this place something that Americans can just look at?

"Everyone, this is the rifling machine we developed, which can automatically pull the rifling, greatly saving the process of making guns. You should have used this technology a long time ago, right? Welcome to give some advice." Qin Baoguo said.

Qin Yang reacted: Dad doesn't know the level of foreign countries!

In the 1970s and 1980s, when the country opened up, the first group of people who came into contact with foreign countries felt that everything in foreign countries was tall and superior, and much more advanced than China. This thinking slowly solidified, making them feel that the West was tall and superior for the rest of their lives. This is like having to buy a Jetta in 2020, thinking that Jetta is the best.

Fortunately, Dad doesn't know foreign languages, and needs Nie Xiaoqian to translate. Just as Nie Xiaoqian was about to translate, fluent English came from outside.

"Everyone, what you see is our most advanced rifling machine, the world's first!"

Nie Xiaoqian was overjoyed, Brother Yang is finally back!

The structure of the rocket extended range shell