Siheyuan starts from a better life

Chapter 268, design completed

Author: Flying Wooden Fish

Chapter 268, design completed

"Finally done." After finishing the drawing of the last part, Jiang Yan stretched.

Seeing the pile of drawings on his desk, Jiang Yan nodded with satisfaction. At first, Jiang Yan felt that he had the drawings of the AK-47 and SKS semi-automatic rifles, and added some of the drawings of the "August 1st" rifle to copy by himself.

It will be quite simple when you first come out, but when you actually start researching and developing it, you will realize that it is really not an easy thing.

An excellent firearm design requires comprehensive consideration of several aspects:

Shooting accuracy: Shooting accuracy is a measure of the performance of a firearm. Good firearm design can reduce the dispersion circle, improve ballistic stability, and make it easier for the shooter to hit the target.

Reliability: The reliability of firearms is directly related to the life safety of users. Excellent firearm design should ensure that the firearm can work normally in various harsh environments and reduce accidents and savings.

Safety: Safety is the first priority in firearm design. When designing, it is necessary to consider various misoperation situations and install safety devices to avoid accidental injuries.

Comfort: Whether comfort affects the user experience is an important factor. A good firearm design needs to consider the comfort of the shooting leg during use, including the grip, trigger, recoil, etc., to improve the stability and stability of shooting.

accuracy.

Ease of use: Ease of use is an important indicator to measure the quality of firearm design. Excellent firearm design should be easy for users to operate, maintain and clean to reduce the difficulty of use and maintenance costs.

Adaptability: The design of firearms should take into account the needs of different users and have a certain degree of adaptability. Through adjustable design, modular structure, etc., firearms can be adapted to different usage scenarios and user needs.

A mature firearm not only has a variety of necessary tactical accessories, such as additional grips, sights, etc.

When designing a gun, the most basic thing is whether it meets the user's conditions. In fact, it is very simple. It is "comfortable to hold, smooth to shoot, safe on the battlefield, and convenient for maintenance."

Although I have a series of drawings and information as a reference, I am very interested in solving problems such as firearm structure, fire control system, aiming device, etc., and I don’t even know some things at all.

Fortunately, there are many engineers who specialize in designing firearms in the 663 factory where he works. Jiang Yan often goes to ask them for advice. Even the library of the factory is not a place Jiang Yan often goes to.

I didn't expect that it would take me three full months to do that, but fortunately, I finally copied that firearm.

The shape of the "August 1" automatic rifle that Jiang Yan copied adopts the shape of the CS/LR14 automatic rifle that was later called the "ultimate modified version of the August 1st" by military fans. That shape is similar to the SL's AK-

47's appearance is completely different, closer to the appearance of Western firearms. Later, people from other countries called the "AK-47" the national version of AK-47.

The magazine was modified, a guide rail was added, and the gun stock became a foldable stock. The Type 81 designed by Jiang Yan is the same as the original Type 81. It uses a short-stroke piston gas guide system and retains the empty magazine hang-up mechanism. The advantages are almost the same.

Not a few, and Jiang Yan tried his best to correct his original shortcomings.

Considering that other countries in the future will adopt small-caliber automatic rifles with a caliber of 5.8mm, the Type 81 gun family was developed in two calibers: 7.62mm and 5.8mm.

The "August 1st" assault rifle copied by Jiang Yan has a total gun length of 955 mm, a barrel length of 455 mm, and an empty gun weight of 3.8 kg. There is room for a bayonet. The 8 rifle is equipped with a safety, and can choose single shot or triple shot.

Round or continuous fire, the muzzle velocity is 720 meters per second, the theoretical rate of fire is 650 rounds per minute, and the effective range is 400 meters.

As Jiang Yanji, who designed the "August 1st Type" assault rifle, designed a matching squad machine gun, the interchangeability of their two parts can reach 40%.

So, is the new "August 1st" copied by Jiang Yan a level better than the original version?

It has entered August now. Although the temperature in Bingcheng is lower than that in Sijiu City, the weather is still very hot at noon, making people feel out of breath.

The old-fashioned electric fan above his head was squeaking. Jiang Yan opened the drawer with his legs, took out a pack of cigarettes, took out one, lit it and took a puff.

"Boss, eat the watermelon quickly. The watermelon from Shajuan is particularly sweet."

After taking two puffs on a cigarette, Xu Damao pushed open the door and walked in with a few watermelons.

Jiang Yan's eyes lit up when he saw the watermelon that Xu Damao brought over. He stubbed out the cigarette that had only been in his lap for a few puffs. He took a bite of the watermelon that Xu Damao brought over. To be honest, the watermelon was really sweet.

Moreover, the watermelon he brought seemed to be very chilled. It was so hot in the summer, but a mouthful of iced watermelon was really worth a penny.

There was no so-called freedom to eat melons in that era. The varieties of watermelons abroad were limited and the planting area was not large. Is it a rare thing? If I remember correctly, Academician Wu, the mother of watermelons, should have just entered the Western Regions to study melons at this time.

As a result, it is estimated that it will take many years for the country to realize the freedom to eat melons.

"Where did the watermelon come from?" Jiang Yan took another bite before asking Xu Damao.

At this time, Xu Damao finished eating a piece of watermelon and then said: "We bought a batch of watermelon on the site, and every worker had a share. Through his connections, Lao Guo took my share of watermelon and put it in the refrigerator in the kitchen.

I chilled something and brought it to me when it felt almost ready."

"Does Lao Guo have it?" Jiang Yan asked after taking a bite of watermelon.

"Yes, of course."

After hearing that it was his fault, Jiang Yan felt relieved to eat the watermelon.

After eating the watermelon, Jiang Yancuo said to Xu Damao, who was cleaning up the watermelon rind: "After I finish cleaning up, I will call Master Sun Deshui into the office. He has something to do with him."

"Boss, if you've become popular, go and call him over." After packing his things, Xu Damao walked out of his office carrying the watermelon rind.

After about ten minutes, Xu Damao, sweating profusely, took Sun Deshui to Jiang Yan's office.

"Boss, he brought Master Sun here."

After hearing Xu Damao's words, Jiang Yan, who was sorting out information, looked up and saw Sun Deshui coming in and greeted him quickly.

"Master Sun is here. Let's go quickly. Damao will give Master Sun a glass of water."

After the two people came east, Sun Deshui said, "I wonder what Mr. Jiang wants to do with him."

When Sun Deshui asked, Jiang Yan stood up, took out a piece of drawings from the table, handed it to him and said, "He invented something small, let's see if you can produce it, Master Sun."

Hearing Jiang Yan's words, Sun Deshui took the drawing handed over by Jiang Yan without saying a word and looked at it carefully. After looking at something, Sun Deshui frowned lightly. That thing was a bit too simple. It was just pulled out from the factory.

A second-level worker can create it.

He looked at the drawings and Jiang Yan said, "No problem, it can be produced. That thing is not difficult."

(End of chapter)