Reborn in 1976, teach him how to be an official

Liu Hongyi knew what he was worried about, but he was not in a hurry to say it out loud.

"Hongyi, do you know why we didn't copy the MK79?"

After a while, Tan Dexi asked.

The MK79 is a grenade launcher used by the infantry squads of the American Army, firing 40mm caliber grenades. After the American Army withdrew from Anlang, the Anlang Army captured a large number of these weapons, and we also obtained some samples.

Logically, our army, which suffers from "fear of insufficient firepower", should be in urgent need of this kind of individual grenade launcher that is convenient, applicable and powerful.

The country has also organized imitation research and development, but it has never been put into service on a large scale.

It can be seen that there must be technical difficulties that are difficult to overcome.

"why?"

Liu Hongyi asked the question even though he knew the answer.

He was very familiar with this "story".

Don’t ask why, the answer is what Tan Dexi told him himself.

"Many years ago", the county party secretary Liu Hongyi and the national treasure-level retired weapons expert Tan Dexi from Factory 576 were friends regardless of age. Tan Dexi and him got along particularly well. One was old, the other was middle-aged, and they had talked about many stories about the development of domestic army weapons.

"This MK79 is different from the howitzer you designed. The launch tube is very simple and easy to copy. The shells are not difficult to make either. The real difficulty is the mechanical fuse."

"This 40mm grenade from Eagle Sauce uses a mechanical fuse, is very safe, and is very sophisticated. We can't make it. Our manufacturing and material levels don't meet those requirements."

Tan Dexi said this and sighed, looking somewhat gloomy and annoyed.

"Teacher, is it completely impossible to figure it out?"

Liu Hongyi asked.

Tan Dexi said, "It's not completely impossible. We can make samples. However, we need to use more advanced materials and make them entirely by hand. The yield rate is also very low. Out of ten, only one or two will be qualified."

"The samples produced in this way are meaningless. They are too expensive and difficult to produce. They are impossible to be deployed on a large scale in the army."

"So, this is not a design problem, but a problem of basic industry."

Tan Dexi sighed deeply again.

He agreed immediately just now because he didn't want to dampen the enthusiasm of his "closed disciple", but now he told Liu Hongyi this to make him give up that "unrealistic" idea.

The principles of the rifle's under-slung grenade and the grenade machine gun designed by Liu Hongyi are different.

There is hope of developing a howitzer machine gun based on existing technology and materials, but it is impossible to develop a rifle with grenades hanging under it!

Tan Dexi and Factory 576 had tried this a long time ago, and facts proved that this approach did not work.

The problem is, Tan Dexi didn't know that the sixteen-year-old boy in front of him was actually a "cheat".

The problem Tan Dexi mentioned was unsolvable in the 1970s, not to mention the 1980s. It wasn't until the late 1990s that researchers pioneered a new approach and finally developed the first domestically produced under-barrel grenade launcher. However, its true practical application would not be realized until the 21st century.

The technology borrowed is not from the United States, but from Russia.

Compared with the Eagle Sauce's technology, the Russian one is relatively simple and crude, and its overall performance is not as good as the Eagle Sauce's under-slung grenade launcher.

But Li Yunlong said it well, a good plaster is one that can draw out pus.

First solve the problem from zero to one, and then the performance can be gradually improved.

If the troops have this thing and can use it, and if they don't have this thing and go to the battlefield, the results will be completely different.

"Teacher, mortar."

Liu Hongyi spoke.

"what?"

Tan Dexi was a little dazed.

I was talking to you about hanging grenades, why did you talk about mortars?

Liu Hongyi whispered, "Let's not think about Eagle Sauce's MK79, let alone its mechanical fuse. Let's just treat this thing as an ultra-light mortar."

"Use the high-low pressure principle. For low-pressure launch, the high-pressure chamber and the projectile are connected together. When launched, they are fired together!"