Chapter 1565 Its Name

Seeing that Kotin's expression was changing and he seemed to have understood something, Malashenko knew it was time to add fuel to the fire. He took advantage of the victory and spoke again when he felt that Kotin understood more than half of the truth.

"Just like the little story of throwing stones I just told, if we use the same propellant to convert it into combustion chemical energy, we can fire a smaller diameter projectile out of the barrel, and at the same time use some method to further reduce the wind resistance cross-section of the projectile and enhance its energy storage capacity during ballistic flight."

"What will this new armor-piercing projectile design mean? I don't think I need to say more, Comrade Kotin."

Kotin is not a stupid person. As the world-class heavy tank design master with the title of the father of the Red Army's heavy tanks, Kotin can lead his team to design a world-famous first-class heavy tank. That is a real skill.

Under the premise that Malashenko has said so much, it is almost impossible for Kotin to still not understand what Comrade Lao Ma wants to express.

"I see, you mean, sub-caliber armor-piercing projectiles! Yes, this name should be the most appropriate."

"We use the same amount of propellant to fire armor-piercing projectiles with a diameter smaller than the main gun caliber from the barrel. Because the projectile itself has a smaller diameter and wind resistance surface, and is lighter in mass, it has a higher muzzle velocity with the same amount of propellant, and will store more energy when it finally reaches the target. The kinetic energy lost on the ballistic flight trajectory will also be much lower, which will eventually lead to the ability to penetrate thicker armor, thereby greatly increasing the armor penetration depth of the projectile. Am I right?"

Malachenko originally thought that he would need to go through multiple rounds of narration and repeated explanations before Kotin could understand what he meant and understand it thoroughly.

Now it seems that Malachenko underestimated Comrade Kotin's ability to understand and ability.

Come to think of it, how could a world-class top heavy tank master, a legendary figure who can design the world's strongest heavy tank of the same era, not understand such a simple truth, or under the premise that it has been explained so clearly.

For Kotin, Malashenko now feels that this is just like an open-book exam, which basically puts the answer in front of Kotin and lets Kotin do "reading comprehension" by himself.

For Kotin's perfect answer, Malashenko simply nodded and said nothing more.

After getting a positive answer from Malashenko, Kotin, who no longer cares about picking up the food on the plate, completely entered a state of selflessness.

Without saying a word, he took out his notebook and pen. Such important details and flashes of inspiration must be recorded at the first moment and there must be no mistakes. Kotin dare not guarantee that he can understand it as clearly and thoroughly as he does now. After all, this is a new concept field that no one has ever set foot in. The slightest mistake may lead to a missed opportunity in the future.

Malashenko did not interfere with Kotin's ignoring him, but just reached out and pulled another plate of lamb chops that had been prepared and placed aside and started to eat it. Kotin knew that Malashenko's appetite would never be full, so he made sufficient preparations in advance. It's that simple.

About two minutes passed, and when Kokin raised his head again with a relieved expression, Malashenko, who noticed the change in Kokin's expression, knew that Kokin was finally going to say something.

"I never thought there was such a possibility! Theoretically, there is no problem. The only thing left is the difficulty of realizing this concept."

"We have to consider the stability of sub-caliber projectiles during the firing process in the barrel. The full-caliber rifling cannot limit sub-caliber projectiles and cannot stabilize the projectile spin, which will directly affect the shooting accuracy. It is impossible to use the traditional design. We must make enough innovations in the design to solve this problem. This will be a relatively complex task."

As soon as Kokin said this, Malashenko knew that Kokin was still a little short of fully understanding what he wanted to express.

Kokin only fully understood why sub-caliber projectiles have a higher armor penetration depth, but he did not understand the design and application principles of sub-caliber projectiles. At this time, Malashenko needed to add more fire to Kokin.

"This problem is not difficult to solve, Comrade Kokin."

"We can make such a design. This new type of armor-piercing projectile is still in full caliber state when in the barrel, and is covered by a hollow steel projectile shell. The real armor-piercing projectile is rigidly fixed in the hollow steel projectile shell, or it is a state of being clamped and temporarily fixed, at least it is absolutely stable and rigidly fixed when not fired."

"But this hollow steel projectile shell is temporary. It cannot fly forward in the air with the projectile itself. If so, it is still a full-caliber armor-piercing projectile, which loses our original conceptual meaning."

"What we have to do is to let this hollow steel projectile shell, in the process of being pushed out of the barrel by the propellant in the barrel, with the help of the rotation of the spiral rifling, give it a spin stability to ensure the shooting accuracy."

"After the shell is fired, this temporary hollow steel shell will automatically crack and fall like a withered petal. This design is not difficult and can be done when the shell is assembled. The hollow steel shell itself is a split structure, but it is temporarily fixed and clamped together by the propellant cartridge."

"To put it simply, this is a fake full-caliber projectile. The purpose is to allow the real sub-caliber projectile inside to obtain the spiral stability given by the rifling. This is the simplest way of description I can think of. If it still can't be explained clearly, I think we can get a piece of paper and draw a picture, which should be better."

Malachenko can only do his best. He is not sure whether his expression can make Kotin understand clearly, because even when he said it, he felt that this is actually a very complicated concept. It is really hard to say whether people can understand it thoroughly at the first time, let alone people who are exposed to this new concept for the first time.

But what Malashenko didn't expect was that Kotin's next expression didn't mean "I don't understand" at all. He just quietly spoke again and asked Malashenko.

"I think I know how to make this new type of armor-piercing projectile. Have you thought of a name for it?"

Malashenko was stunned at first, and then he smiled faintly at Kotin.

"Of course, its name is armor-piercing discarding sabot."