afterglow

Chapter 79

The person who came was a well-dressed man in his thirties, with square-frame glasses and short hair. He looked like an engineer who was on the front line.

As far as hair growth and bundling are concerned, this was a way of distinguishing different races in the classical era. It can be said to be a manifestation of the distinction between Hua and Yi. disappeared.

However, the imperial court has not done too much coercive intervention in this regard, and the official document issued by the Ministry of Rites only stated that it is not appropriate to dishevel your hair in public.
Therefore, the current overall trend can be said to have evolved naturally in line with industrialization. The custom of tying hair in rural areas is still common; while in urban areas with developed economies and a faster pace of life, many workers choose to cut their hair short for convenience. , There are also young people who pursue fashion and freshness to try new hairstyles.

Young people with dyed and permed hair...Zhou Changfeng also met him on the road, but in his impression, he probably would have to be scolded by his family.

As for the capable engineer in front of him, he obviously belongs to the category of convenience.

"It's really Mr. Zhou. When I heard the name, I didn't think it was because it was the same name, but it turned out to be true." He cupped his hands and said with a smile: "I saw the sketch you drew, and it was very interesting. In addition, you also know weapons."

"Just...a little bit." Zhou Changfeng chose to tell the truth.

"Mr. Zhou, you are too modest. I am Wang Huan'an from the Public Works Department. Let's chat?"

"it is good."

So they both sat down, one on the left and one on the right, with a walnut square table in the middle, and a few pieces of draft paper on it.

"You have personally led troops to fight against tanks, and your opinion on this anti-tank vehicle must have weight. Do you think it is not enough except for grenades and grenades?" Wang Huanan asked straight to the point.

"That's for sure. Infantry is at a natural disadvantage against armored targets, just like infantry and cavalry in ancient times. Although there is a way to control cavalry by infantry, it is not efficient after all." Zhou Changfeng made a circle on the sketch and continued Said: "Therefore, the more anti-armor weapons the infantry has, the better."

Wang Huan'an thoughtfully nodded and said: "Nowadays, the hit rate of rifle grenades attacking moving chariots is too low, and the range is only a hundred meters; grenades are almost close to hand-to-hand combat, and a longer and more powerful type is indeed needed. Light weapons."

When all countries in the world are developing anti-tank ammunition based on the Monroe effect, Daming is naturally not idle. In order to keep secret and confuse the public, the name of the hollow-charge armor-piercing ammunition is called "special burner ammunition".

The Ordnance Bureau has officially issued research instructions to the major arsenals last year. The major military industrial bases such as Yingtian, Shuntian, Wuhan, and Chengdu all carry out research and development according to the given technical indicators, and then conduct unified evaluation after the deadline. Selected with the best overall performance.

The research instructions of the Ordnance Bureau are anti-tank grenades and anti-tank grenades. Although the Type [-] anti-tank guns have just been installed, it is necessary to plan ahead.

What's more, according to known information, the thickness of the frontal armor of Tsarist Russian medium tanks is more than one inch, and the thickness of the side armor is also more than half an inch.This is no longer what anti-war guns can effectively deal with, and infantry units urgently need weapons that can damage them.

Now a year has passed, Yingtian Armory has completed its own design, and has gone through many trials and improvements.

Therefore, Wang Huan'an didn't care about Zhou Changfeng's sketches of rifle grenades and grenades. What interested him was the tubular launcher.

He squinted slightly, and imagined the appearance and principle of this thing in his mind, "The recoilless gun is still a new thing now, Mr. Zhou, you can think of using its principle in other places, wonderful."

The prototype of the recoilless gun appeared more than [-] years ago, but so far there has not been a large-scale installation of the model.

In history, an engineer named Kurchevsky was extremely keen on recoilless guns, and designed a series of recoilless guns ranging from 37mm to 305mm, from small to large, but without exception they were tasteless.His most famous design is a giant 305 mm recoilless gun installed on a destroyer, but the test results were poor.

So during the cleaning period, due to the poor design of the weapon and being implicated in other cases at the same time, Kurchevsky was arrested and fed peanuts.

Zhou Changfeng spread his hands, "Theoretically, it should be feasible, but I'm only an amateur after all, and whether it works or not depends on the actual test."

"I am very optimistic about this design. Really, the so-called brainstorming is indeed reasonable. This thing is completely feasible and wonderful."

"So...then it's accepted?"

Wang Huan'an, who was holding a teacup, smiled and said, "At least this has given us a lot of inspiration, but the specific details need to be adjusted."

Zhou Changfeng nodded, and pondered: "This thing combined with hollow charge technology can destroy heavy armored targets at a distance of dozens of steps, not to mention today's thin iron cans, even the cutting-edge tanks in the next few years may not be able to destroy them." It cannot be effectively defended, and if there is a war, our army can have an advantage in this regard at the beginning."

"It is true. Compared with solid group charges, hollow-charge ammunition has a great ability to penetrate steel plates. A thing the size of a small orange can penetrate an inch-thick manganese steel with a soft iron cover." Wang Huan'an recalled Looking at the scene of a certain test some time ago, he said with emotion: "And it's just started now, and this kind of ammunition will definitely flourish in the future."

"Aha? Soft iron?" Zhou Changfeng was a little surprised. He blinked and asked, "Is it a slip of the tongue, soft steel? Use soft iron as a medicine mask?"

"It's just a casual remark. I tested them one by one a few days ago. I tried covers made of various metals, such as cast iron, soft iron, mild steel, hard steel, zinc-aluminum alloy, brass, copper, etc." Wang Huan'an waved his hand, "But it's inconvenient to disclose the specific situation, sorry."

Zhou Changfeng smiled slightly, and made a joke, "In theory, the higher the density, the better the effect, so have you applied for gold to do this?"

"Uh..." Wang Huan'an laughed dumbfounded, and then said seriously: "Mr. Zhou, we can't afford gold, but we have tried silver."

Regardless of other factors, if the variables are controlled, the higher the material density of the drug-type cover, the better. Zinc-aluminum alloy<steel<copper<silver<gold.

So... eat me a golden armor-piercing bullet!

However, considering the cost performance, people generally choose copper as the material of the drug-type cover. Of course, in order to reduce production costs, low-carbon steel is also used.

As for why not choose lead, which is both dense and cheap, as the medicine-shaped mask, because the texture of lead is too soft and the melting point is too low, it is easy to diverge and vaporize when forming a metal jet, and its armor-piercing efficiency is only two-thirds of that of copper.

(End of this chapter)