typeface
large
in
Small
Turn off the lights
Previous bookshelf directory Bookmark Next

Chapter 1165 High and Low Voltage Principles

"Are you making a trade-off between launch range and recoil?" Although he knew the problem, Lin Mo still asked.

Wu Liangdong nodded and explained: "We have thought of many ways to solve this problem. For example, we found that semi-automatic can cushion part of the back seat, so we designed the semi-automatic next to it.

But after trying it, it is still not ideal. At most, within the range of the recoil that can be tolerated, the projectile distance can be increased to about 150 meters, which is still far from what you require.

We have also tried muzzle brakes, but due to the limited amount of gas and the large caliber, their effect is very little, almost non-existent.

We have also tried to reduce the caliber, but the range and recoil are still big problems. If we want to reduce the range to meet the standard, it will basically have no lethality.

Like the one modeled after a machine gun, it can withstand quite a lot of recoil. Although the current failure rate is extremely high, it can be gradually improved.

The problem is that its range is only the lower limit of two to three hundred meters set by you. Considering its size and weight, it has little practicality. It doesn't even have the limited utility of a shotgun for security purposes."

Lin Mo nodded and thought about it carefully. There should be no problem with the launcher. After all, it can withstand the chamber pressure and the weight is not at the limit.

Of course, except for the machine gun, after all, the tripod is used to bear the recoil force, not the weight of the barrel related to the chamber pressure.

There is no big problem with human physique. The recoil problem can be attributed to the structure of the gun and the ammunition. But even semi-automatics have been developed and tested, so the problem is obviously not in the structure of the gun.

What's more, there are successful examples in later generations that have proven that these structures are usable, and if there are any special structures on the launcher, it is impossible to be applied to so many types of weapons.

After all, it doesn’t seem like there is any mechanism that can be shared by the intermediate fold, runner, semi-automatic, etc., so the problem should be with the ammunition. After all, there are more common ammunition.

Realizing that the problem was with the ammunition, Lin Mo thought about it carefully. Unfortunately, after thinking for a long time, he still didn't realize where the problem was.

He turned around and saw everyone looking at him. He quickly waved his hands and said, "I'll think about the solution again. You guys can also help me test it and find other problems."

After hearing this, everyone stopped standing around, stepped forward to get the ammunition, and began to test it. Although the power of the weapon is relatively impressive at the moment, if the problem can be solved smoothly, everyone can still foresee the effectiveness of this type of weapon, so it is still

More proactive.

Listening to the thumping sound, Lin Mo never recalled what he missed. After thinking about it for a while, he decided to change direction and no longer bother to recall, but to think about solutions.

It's a pity that this is not easy to do. Lin Mo tried his best but was unable to do anything. However, he was not discouraged. If it was so easy to explain, Wu Liangdong didn't have to do the same.

However, most of that was caused by the unknown, not knowing whether there was such a solution, so he was confused and disappointed, but he was sure that there was a solution.

"Brother Fei, can I have a try with this thing?"

Zhuzhu stood aside, looking at the things on the ground, rubbing his hands, and asking Wang Shoufei eagerly. His words seemed to be mixed with pleas to please.

"...No, no, no, no..." Wang Shoufei shook his head like a wavy drum and said: "It's okay for you to play with it for a while, but we only have a few cannonballs left, so we can't use them anymore."

Zhuzi was unwilling to give in and said: "After using it, you can ask the institute to help you get the shells! Just like the training bombs, it shouldn't be too difficult, right? After all, there are no fuses and those miscellaneous ones. You can pick them up and reuse them.

How much does it cost?"

Wang Shoufei was also a little excited and said: "Okay! Go and ask, if you can really do it, when it is done, you will be addicted to it."

"...Uh..." Zhu Zhu looked helpless. Did he mean that? What he wanted to say was that since there was a way to get ammunition, the few rounds left should not be taken out and given to him as rewards? But he looked at Da Step looking for it.

With Wang Shoufei gone, Zhu Zhu had no choice but to follow him.

Lin Mo walked around and thought for a long time under the canopy on the wall of the shooting range, but could not come up with a solution. He happened to walk next to the two of them and saw and heard the scene clearly.

Watching Zhu Zhu's leaving figure, Lin Mo was filled with doubts. He had never seen him interested in cannons before! Is it possible? Did he open up the Ren Du Second Meridian by himself? Or is Zhu Zhu possessed?

However, Lin Mo's eyes were quickly attracted by the Taisho 11th-year-old flat-firing cannon on the ground. He was lost for a moment, and a smile appeared on Lin Mo's face.

Wu Liangdong was communicating with Wang Mingkun and Wang Shoufei, probably not only about ammunition, but also about this batch of weapons and the issues of previously distributed weapons.

"Captain Lin, have you thought of a solution?" Seeing Lin Mo approaching with a smile on his face, Wu Liangdong was stunned for a moment, and then spoke with joy on his face.

"...Well..." Lin Mo nodded slightly and replied with a smile: "Do you still remember the grenade I handed over in Shanghai for you to study? The solution lies in that."

Of the captured grenade launchers and flat-firing cannons, a copy should be kept at the training ground for training and proficiency. There must also be a copy at the repair shop for research.

After hearing this, Wu Liangdong frowned slightly and said a little disappointed: "You mean to refer to the design of the grenade. This should..."

Lin Mo waved his hand and said: "In terms of the design idea of ​​the launcher, there is no big problem with what you have done. The problem lies in the ammunition.

The grenade has two kinds of ammunition, one is used to launch grenades, and the range is the same, and the other is special grenades, and the range is increased several times.

Even if the design of the special grenade is more reasonable, it is impossible to improve the performance of the ammunition by simply pushing the gunpowder and gas, not to mention the chamber pressure limit.

The fact is that the range of special ammunition is not only doubled, but also heavier, and it can also share an ultra-light launcher.

In other words, the special thing is not in the launch tube, but in the ammunition, so we can refer to the design and principles of its special ammunition and use it here."

This chapter is not over yet, please click on the next page to continue reading! Xu Zhiyu on the side, after listening, asked: "Captain Lin, are you talking about the high and low pressure that you mentioned when you were inspecting and dismantling ammunition on the road?

principle."

Lin Mo nodded and introduced the principle of high and low voltage, but it was very superficial and general. It seemed that he didn't know much about it, he just knew that it existed!

Fortunately, when Lin Mo mentioned the grenade canister, Wang Mingkun sent someone to the weapons depot to fetch the grenade canister and ammunition, and everyone began to dismantle and inspect it on the spot.

There is naturally a reason why Wang Mingkun is so concerned. They are positioned as a small force and can only afford to carry a limited number of things, and this is something they can obviously use.

Before, his idea was a grenade. After all, it comes with a cannon! It can greatly increase the firepower, who wouldn't want that?

However, if you want to use the grenade, you need a lot of experience, and it can only shoot in a straight direction. I didn't think it was a problem before, but this launcher is obviously capable of direct fire, at least after the range is increased, so the grenade suddenly becomes less popular.

.

After taking it apart, the principle of high and low pressure is actually very simple. The gunpowder is first ignited in the cavity inside the projectile to form a high-pressure chamber, and then the gunpowder gas is transported out through the holes.

Due to the obstruction and restriction of the hole, the gas outflow time will be extended to a certain extent. When the gas flows out, it also pushes the projectile out of the chamber, and then vacates a larger space. Therefore, the projectile body and the barrel form a low pressure with lower chamber pressure.

room.

The recoil force mainly comes from the instantaneous explosion of gunpowder gas, and the holes hinder this process, so the recoil force is naturally greatly reduced.

Similarly, the gas explodes slowly, and the pressure on the gun barrel is naturally smaller. This is reflected in the fact that the pipe can be thinner and lighter or use materials with more ordinary and common properties.

After everyone conducted some research and exchanges, they thoroughly understood the principles. Wu Liangdong was so excited that his face turned red to the base of his ears, and he had obviously confirmed that this was the solution.

"The principle is easy to use, but in terms of the actual structure, I think it is necessary to change it, such as placing the high-pressure chamber part on the cartridge case, and then using the space between the cartridge case and the projectile body as its low-pressure chamber.

First, reduce the weight of the warhead, and the saved weight can be used to increase range, power, etc.; second, the cartridge case can also share part of the earlier larger chamber, thereby making the launcher lighter, or allowing the ammunition to be adapted to more types of launchers.

, like the runner model, the cartridge case is needed at the rear to share the chamber pressure.”

Wu Liangdong thought for a while and nodded in approval. This weight should not be added to the shell, but also to the body of the projectile. Wherever it is placed, it will not increase or decrease the total weight of the ammunition too much, which means it will not reduce the burden on the soldiers. In this way

Why not use it on the cartridge case and improve the performance of the ammunition instead.

Lin Mo thought for a moment and said: "In this case, the bullet case needs to be made of steel, but considering the difficulty of processing, we don't know the cost yet, so we need to make a detailed calculation.

In addition, ammunition with different chamber pressures can be developed by increasing or decreasing the propellant and hole size, such as high-pressure ammunition, which can be used on grenade machine guns to increase the range."

Wu Liangdong had already taken out his work notebook and wrote down Lin Mo's suggestions one by one. Lin Mo also made more suggestions for this one after another.

"By the way, we must also try to imitate the flat-fire cannons and grenade launchers that were captured previously. It is best to have them produced as soon as possible, and we must find ways to achieve large-scale mass production in the future."

After hearing this, Wu Liangdong raised his eyebrows slightly and said with some confusion: "The flat-firing cannon feels quite backward. As for the grenade, its tactical effect is almost the same as that of the grenade launcher. There should be no need to use it, right?"

"...Sigh..." Lin Mo sighed and said with some helplessness: "We cannot only consider the effectiveness of weapons, but also consider the cost! Both of these two models have lower technical difficulty, lower weapon cost, and lower usage cost.

It’s in line with national conditions!

Take the grenade launcher as an example. The key lies in the ammunition. It is smaller, which means that the ammunition parts must be smaller and more delicate. Whether you can mass-produce it is another matter, not to mention that compactness means high cost.

If it is actually made, whether it will be worth the money is another matter."


This chapter has been completed!
Previous Bookshelf directory Bookmark Next