Chapter 1565 Its name

Seeing that Kogin's expression was constantly changing, he seemed to have some ideas. Malashenko knew that it was time to add fuel to the fire, and pursued the victory. When he felt that Kogin understood more than half of the truth, he spoke again.

"Just like the stone-throwing story I just told, if we use the same propellant to convert into combustion chemical energy, we can launch smaller-diameter projectiles out of the barrel, and at the same time, somehow reduce the wind resistance of the projectiles. The cross-section is further reduced and its ability to store energy during ballistic flight is enhanced.”

"I don't think I need to say more about what this new armor-piercing projectile design will mean, Comrade Kogin."

Kogin is not a stupid person. As the number one world-class heavy tank designer with the title of the father of the Red Army's heavy tanks, Kogin can lead his team to design a world-famous first-class heavy tank. This is because he has real skills. of.

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

"I understand, you are referring to, um, sub-caliber armor-piercing bullets! Yes, this should be the most appropriate name."

"We use the same amount of propellant to launch armor-piercing projectiles with a diameter smaller than the caliber of the main gun from the barrel. Because the projectile itself has a smaller diameter and wind resistance surface, and is lighter in weight, under the same amount of propellant With a higher muzzle velocity, more energy will be stored when it finally reaches the target, and the kinetic energy lost on the ballistic flight trajectory will be much lower, which will ultimately lead to the ability to penetrate thicker armor, thereby greatly increasing the projectile's effectiveness. Armor penetration depth, am I right?”

Malashenko originally thought that he would need to go through many rounds of narration and repeated explanations before Kogin could understand what he meant and understand it thoroughly.

Now it seems that Malashenko has underestimated Comrade Kotin's understanding and ability.

Think about it, how could a world-class top heavy tank master, a legendary figure who can design the pinnacle of the world's most powerful heavy tanks of his generation, be unable to understand such a simple truth, under the premise that it has been explained so clearly? .

As far as Kotin is concerned, Malashenko now feels that this is almost like an open-book exam, basically putting the answers in front of Kotin and letting Kotin do the "reading comprehension" on his own.

Regarding the perfect answer given by Kogin, Malashenko simply nodded and said no more words.

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

Without saying a word, he took out the notepad and pen he carried with him. Such important details and flashes of inspiration must be recorded immediately without any mistakes. Ke Jin can't guarantee that he will be able to understand it as clearly and thoroughly as he does now. After all, this is a brand-new conceptual field that no one has ever set foot in. The slightest mistake may lead to missing the future.

Malashenko did not interfere with Kogin's behavior of ignoring him. He just reached out and took another plate of mutton chops that had been prepared and put aside and started to gnaw on it. Kogin had known for a long time that Malashenko's appetite was insatiable, and he had made enough preparations in advance. It was as simple as that.

About two minutes passed. When Kogin raised his head again with an expression that seemed relieved but worried, Malashenko, who noticed the change in Kogin's expression, knew that Kogin was finally going to say something. .

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

"We have to consider the stability of sub-caliber projectiles during firing in the barrel. The full-caliber rifling cannot limit the sub-caliber projectiles and cannot stabilize the spin of the projectiles. This will directly affect the shooting accuracy. Continue to use the traditional design It is impossible. Sufficient innovation must be made in design to solve this problem, which will be a relatively complicated task.”

As soon as Kogin's words came out of his mouth, Malashenko knew that Kogin was still a little short of fully understanding what he wanted to express.

Kotin only fully understands why sub-caliber projectiles have higher armor penetration depth, but he has not yet understood the design and application principles of sub-caliber projectiles. At this time, Malashenko is needed to add fuel to Kotin's fire.

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

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

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

“What we have to do is to make this hollow steel projectile shell, in the process of being pushed out of the barrel by the propellant, use the rotation of the spiral rifling to give it a real armor-piercing projectile wrapped in a rigid connection inside. , a spin stability to ensure shooting accuracy.”

"After the cannon is ejected from the chamber, this temporary hollow steel projectile shell will automatically crack and fall like withered petals. This design is not difficult and can be done during the assembly of the cannon. The hollow steel The projectile shell itself is a separate structure, which is only temporarily fixed and held together by the propellant barrel. "

"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 I can think of to describe it. If you can't explain it clearly yet , I think it would be better if we could get some paper and draw pictures.”

Malashenko could only do his best. He was not sure whether his explanation could be understood clearly by Kogin, because even when he said it, he felt that this was actually a quite complicated concept. It’s hard to say whether it can be understood thoroughly in the first place, let alone someone who is coming into contact with this new concept for the first time.

But what Malashenko didn't expect was that Kogin's subsequent expression didn't mean anything like "I don't understand." He just quietly spoke again and asked Malashenko aloud.

"I think I know what to do with this new type of armor-piercing bullet. Have you thought of a name for it?"

Malashenko was startled for a moment, then quickly faced Kogin with a faint smile.

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