Zhu Han looked at the report in his hand and frowned.
In the end, he simply slapped his forehead with one hand, covered his face and smiled bitterly.
It had been three days since the war started, and the weapon feedback reports were naturally gathered into his hands as quickly as possible.
Praise for recoilless rifles is densely packed between the lines.
Unabashedly praise this thing to the sky.
But the more this happens, the more embarrassed Zhu Han becomes.
He could not expect the effect of destroying a layer of Japs with one shot.
Perhaps when facing fortifications, many people will literally think of armor-piercing and armor-breaking projectiles.
But of these two things, one is made of solid steel, and the other is designed to shatter the armor and shoot it into the car body, killing the enemy through the fragmentation jet.
In other words, one of them deals with the car, and the other deals with the people in the car. Neither of them is used for fortification.
The impact fuses used by ordinary high-explosive bombs are used to kill infantry in open areas.
Once it hits the wall, it will explode immediately, which is also familiar to the Eighth Route Army soldiers.
Zhu Han was working on another thing that was beyond the awareness of grassroots soldiers - concrete destruction bombs.
The principle is actually quite simple.
That is to thicken the warhead steel, add propellant, and replace it with a delay fuse of about one and a half seconds.
In this way, the shell will be embedded in the concrete fortification and explode.
But Zhu Han ignored one thing. The thing he created was designed to deal with the standard concrete fortifications of the United States, the Soviet Union, and Germany on the European battlefield.
How can the devil have so many resources?
Even for the Jingxing Coal Mine, which is highly valued, the materials used for the fortifications are countless times more luxurious than those of those small blockhouses.
But it is still inevitable to "cut corners".
In this way, a concrete-destroying bomb actually felt like a ground-penetrating bomb.
But do you think I would feel guilty about not being able to win?
joke!
Anyway, your Japanese invasion of China is just to bully us because we are poor and weak and unable to resist.
This time I also let you have a small taste of the feeling of being crushed by equipment.
Come on, let’s hurt each other!
The Japanese thought he had nothing to do, but they had to let the commanders know the misunderstanding anyway to avoid problems.
Forget it, the commander-in-chief and the others definitely don’t have time to listen to these insignificant things.
Let’s wait until the battle is over.
"What are you doing? Are you so worried?"
As soon as Lao Liu entered the room, he saw Zhu Han with a helpless face.
"It's nothing. It's just that the recoilless gun showed power that it didn't belong to. It's just a bit helpless."
When Lao Liu heard this, he immediately looked like a black question mark:
"Director, have you begun to dislike the power of weapons now?"
Zhu Han: "If the soldiers believe that this is its original power, they will suffer a loss once they encounter real concrete fortifications."
"Oh, you underestimate our soldiers." Lao Liu disagreed. "From top to bottom, they fight with their heads, not their weapons."
Zhu Han nodded, obviously agreeing with this sentence.
"Tell me, what do you want from me?"
As soon as work was mentioned, Lao Liu immediately sat upright:
"The DPM (M means modernization in Russian, equivalent to K in German) machine gun has begun production. The machine gun mount you mentioned is under testing. I'm here to ask you about the next step for me."
"So fast?"
This news is really an unexpected surprise for Zhu Han.
He originally thought it would take a few days to build the production line, but now he is more confident about the next action.
"That's for sure." Old Liu was very excited when he mentioned this. "Ever since you gave Xiao Zhao the design drawings of the machine gun mount and the August 1st-style drum, he was as excited as if he had been injected with blood, and he shouted every day As if you are a genius."
"Although the other technicians didn't understand what it meant, seeing how excited someone of Xiao Zhao's level was, they must have been even more excited. They quickly built a sample gun mount. I didn't quite understand how a light machine gun could be built into a gun mount. What’s the use?”
Zhu Han smiled softly and answered the question with a question: "What do you think the range of the heavy machine gun is?"
Old Liu: "800-1000 meters."
"Then how far can Shui Lianzhu hit?"
Lao Liu: "I remember that the scale reached 2,000 meters."
"Then what kind of bullet did Maxim use?"
Lao Liu: "7.92 Mauser rifle bullet..."
Lao Liu: "!"
These questions may seem unrelated, but if you think about it carefully, you will understand the connection.
Light machine guns and heavy machine guns seem to be two different things, but in fact there is no essential difference at all.
Because when this thing first appeared, it had only one name: machine gun.
Whether it’s Maxim, the Great Merciful One, or Gatlin, who saves all sentient beings.
The ancestors of these two machine guns have a common problem, that is, they are too heavy and need two wheels to push them around.
In order to allow automatic weapons to follow the troops.
Designers in various countries have generally begun to think about how to reduce the weight of automatic weapons.
So "lighter" machine guns appeared.
It is said that reducing the weight of a weapon is the normal evolutionary direction of a weapon.
But soon during use, an essential problem was discovered that completely separated the machine gun - recoil.
In fact, there is no essential difference in the recoil of weapons using the same bullet. (What we are talking about here is the overall recoil, not the felt recoil, don’t get confused.)
As we all know, when a bullet is ejected it is not a straight line, but a parabola.
Anyway, the same bullets are used, so it can be understood that as long as the muzzle is raised, the range of the machine gun can be increased.
But two problems arise.
First, in order to allow people to carry the light machine gun while walking, it uses a folding bipod.
The structure of this type of bipod makes it impossible to make it too long, so the light machine gun does not have such a large elevation angle at all when shooting.
The second problem is recoil.
It is common sense that the triangle has stability. The light machine gun is equivalent to treating the shooter as a third tripod to prop up the gun.
This means that almost all of the recoil needs to be carried by the shooter.
After all, the human body is soft, so the muzzle jump will be very large.
It's okay within 800 meters. If you use a light machine gun to fire continuously beyond 800 meters, except for the first bullet, it is a waste of ammunition.
The heavy machine gun can use its large weight and tripod to greatly consume the recoil and reduce the muzzle jump, thereby ensuring long-distance shooting accuracy.
This is why there are still a large number of heavy machine guns in the 1930s and 1940s when light machine guns have made great progress.
Santoku, who was restricted by the Versailles Contract, was restricted from developing heavy weapons, including heavy machine guns.
Their designers began to think about recoil.
Heavy weight can consume recoil, and the shooter's shoulder can also reduce perceived recoil.
If I adopt a firearm design that reduces the perceived recoil as much as possible, and at the same time let the shooter help withstand part of the recoil, will I be able to achieve the effect of a heavy machine gun with a large weight?
At that time, adding a tripod will not only increase the elevation angle, but also further lower the rear seat. Can a light machine gun also achieve the effect of a heavy machine gun?
As a result, a concept of a machine gun that was light but had a bipod, a detachable tripod, and a shoulder stock was born - a universal machine gun.
Santoku's MG42 is an extremely successful product of this kind of thinking.
The original recoil spring of the DP-28 (Big Pan Chicken) is placed under the barrel. Long-term shooting will cause the spring to become soft due to heat.
In order to solve this problem, Mr. Degogarev moved it to the recoil reed behind the receiver.
As a blessing in disguise, the recoil spring can be made longer, and the recoil seat can be greatly reduced, which perfectly fits the concept of a general-purpose machine gun.
So in 1944, DPM's matching tripod came into being.
Now, apart from poor ergonomics, the only shortcoming of this gun is the annoying ammunition supply.
The processing is cumbersome, not very durable, loading is particularly troublesome, and it is very inconvenient to carry.
But the boss also designed a detachable kit for him, which allows it to use a bullet belt to feed ammunition.
Moreover, Zhu Han also developed a special loader for the bullet disc.
Just like a gripper, you only need to clip it on and squeeze it to load a bullet.
There is no need to turn the movable surface of the bullet plate at a certain angle to load a bullet, as before.
Especially when it comes to the last few bullets, loading the bullet against the huge elastic force of the coil spring is really a physical job.
By the way, the inventor of this magazine loader is also somewhat famous, his name is Dragunov (yes, the Dragunov you are thinking of).
As a result, the fully patched DPM light machine gun has only two words left - perfect for the Eighth Route Army's current operations and future development.
Lao Liu has worked with Zhu Han for such a long time, and he has become a weapons expert through what he has seen and heard.
He quickly understood what Zhu Han meant.
No wonder Zhao Sizhe is so excited. I am more excited than him now, okay?
If it weren't for the lame leg, I would have jumped up long ago.
This is equivalent to solving the problems of light and heavy machine guns at the same time.
As long as the production line is expanded, there will be as many light machine guns as we need.
There are as many heavy machine guns as there are tripods.
Our Eighth Route Army is going to take off from the same place!
