In the past few days, Zhang Yunfei arrested Zhang Yuxin and Zhang Chu and others and acted as his assistants. After all, one of the six of them studied civil engineering, Zhang Chu and the other two men studied mechanical majors, while Zhang Yuxin studied electronic communications.

Zhang Yuxin is used by Zhang Yunfei as a personal assistant. Except for sleeping at night, she always brings Zhang Yuxin. Now Zhang Yuxin is dressed in an Eighth Route Army dress, looking heroic and attractive...

During this period, Zhang Yunfei and Zhang Yuxin cooperated more and more tacitly. Sometimes, Zhang Yuxin knew what to do with a look on his face. Of course, Zhang Yunfei also used his work to take advantage of some oil, such as holding hands and hugging his waist, but it would not work further, which would cause Zhang Yuxin to roll his eyes.

A month later, the special forces team began to return to Xin'an County one after another, bringing back hundreds of technical workers and professional technicians. During these people, an old engineer who was nearly 60 years old attracted Zhang Yunfei's attention.

According to the special forces members, this old engineer who is nearly 60 years old is a national treasure-level figure in Taiyuan Arsenal. The old engineer is Xu Kaixian. He studied in the United States for many years in the late Qing Dynasty. After returning to China, he was poached by Yan Xishan to the Taiyuan Arsenal with a high salary and engaged in the design and development of weapons. He worked in the Taiyuan Arsenal for nearly 20 years. In the battle of Taiyuan, his family was killed by the Japanese aircraft. He is currently alone. Not long ago, he was found by the special forces in Taiyuan. He heard that he was here to work for the Eighth Route Army, so he agreed immediately.

With the addition of these skilled engineering and technical personnel, the construction of the Huanglongxia Arsenal, which was about to end, was completed in less than a week. Zhang Yunfei followed Xu Kaixian's advice and divided the factory into several large workshops. Each cave was a workshop, and a Weapon Design Institute was established. Mr. Xu was appointed as the director of the institute and chief engineer of the arsenal.

Zhang Yunfei has already thought about the products of Huanglongxia Arsenal. Based on the current actual situation, he mainly produces several products.

In terms of artillery, due to equipment restrictions, large-caliber artillery cannot be produced, so we decided to imitate the Japanese Type 92 infantry cannon.

Among the Japanese weapons, other weapons have design defects, and various defects. For example, the 38th cover has the disadvantage of low lethality. When hitting people, it often causes penetration injuries. If you don’t hit the key, it will be difficult to kill yourself with one shot. The crooked handle will often get stuck, and the 92 heavy machine gun fire rate is too low. Only the Japanese Japanese's 92 infantry cannon is a good weapon of this era.

The Type 92 Infantry Cannon is a very excellent weapon among the Japanese weapons and equipment, known as "one inch short, one inch dangerous". It is a "ideal" infantry battalion support weapon in the 1934th century. This is especially true for countries with extremely low mechanization.

In addition, it is very suitable for use on complex terrain. For example, it is very handy for infantry battalions in mountain warfare. Moreover, its mission range is wide and can almost cover all types of firepower support required by infantry battalions. In addition, the structure is simple, which is not only convenient for wartime production, but also easy to use and maintain.

The total weight of the Type 92 infantry cannon is only 0.212 tons, so the transportation requirements are very low. Without vehicles, untrained animal power or manpower can be towed forward. In addition, it can decompose transportation, and the requirements for road conditions in the war zone are almost reduced to the lowest point. It can be said that the Type 92 infantry cannon is an infantry cannon that can truly accompany the infantry battalion unconditionally.

In view of these, after repeated consideration, Zhang Yunfei decided to imitate the Japanese Type 92 infantry cannon and imitate them. Don’t redesign them yourself, as the production process will be much faster.

As for light weapons, Zhang Yunfei decided to pirate the AK-47 automatic rifle that had not yet appeared in this era. As an excellent special forces soldier in later generations, he knew very well about various weapons. The AK-47 automatic rifle was highly praised in later generations. Zhang Yunfei naturally paid attention to and understood it, and the real gun was disassembled and used many times.

The various individual indicators of the ak-47 automatic rifle are not outstanding, but the overall performance is very balanced, the structure is simple, sturdy and durable, with few failures, low cost and huge power.

The receiver and many accessories are produced by stamping technology. The advantage of using stamping technology is that it consumes less material and has high production efficiency, which allows a large amount of equipment to be produced. This is one of the reasons why Zhang Yunfei chose the AK-47 automatic rifle.

In addition, the effective range of the AK-47 automatic rifle reaches 300 meters, which is basically the same as the range of the rifle of this era. The infantry squad basically does not need to be equipped with a crooked machine gun, of course, unless there are more advanced and better machine guns.

After several nights and repeated modifications, Zhang Yunfei finally drew out the basic drawings of the AK-47 automatic rifle. Why is it called the basic drawing? Because Zhang Yunfei could only draw out the basic mechanism and basic principles of the AK-47 automatic rifle. As for some specific details, such as some key sizes, coordination and tolerances, he was helpless. However, I believe that Xu Kaixian would wait for a group of professionals and spend a certain amount of time to tinker with them.

When Zhang Yunfei placed the drawings in front of Xu Kaixian, Xu Kaixian was extremely shocked. He had been engaged in weapon research and development and design for almost his whole life. This was the first time he saw such a clever weapon. He felt that this kind of gun was definitely a big killer. Such an excellent weapon was made in his hands, and he would have no regrets in this life.

Seeing Xu Kaixian's face turned red with excitement, and his hands holding the drawings were shaking slightly, Zhang Yuxin also knew that this must be an epoch-making weapon. His eyes began to look different when they saw Zhang Yunfei, and his eyes were full of small stars.

Originally, for several nights in a row, Zhang Yunfei asked Zhang Yuxin to cooperate with the drawings of this rifle. Zhang Yuxin complained. Every time he got it after 12 o'clock in the evening, Zhang Yuxin had not had a good sleep these days, and she almost had dark circles. This guy didn't know how to be polite at all. He didn't know whether sleep is very important to women, especially to beauties?

In fact, when Zhang Yunfei was drawing pictures at night, Zhang Yuxin couldn't help much. She just poured some tea, spread paper, and handed a pencil ruler.

Seeing Xu Kaixian's excited look, Zhang Yunfei's heart finally fell down. It seemed that this AK-47 automatic rifle should be able to be built. But Zhang Yunfei still asked: "Old Xu, are you sure to make this gun?"

Xu Kaixian calmed down his excitement and said affirmatively: "I am sure to make it. This drawing clearly draws the basic mechanism and basic principles. We can calculate and make up for the missing sizes. We can draw it overtime. In about half a month, the sample gun of this gun can be made and mass-produced in one month."

Seeing Xu Kaixian so confident, Zhang Yunfei was also very happy and said solemnly: "Then please, I'll wait for your good news."

Afterwards, Zhang Yunfei and Xu Kaixian exchanged some opinions and visited the entire Huanglongxia Industrial Zone. Now the entire industrial zone is roaring and the scene is in full swing. The workers are working hard. Several Type 92 infantry cannons in the artillery workshop have begun to take shape.

It took Zhang Yunfei almost two hours to return to the Xin'an New City Command from the industrial zone. This was the result of Zhang Yunfei riding a tricycle. It would probably take one day to walk.

At present, a 5-6-meter-wide sand and earth road has been repaired. It directly leads to Huanglongxia Industrial Zone from Xin'an New City. Five checkpoints have been set up on the road. Regardless of entering and leaving, they will be inspected layer by layer. Zhang Yunfei near the industrial zone even sent a battalion of troops to guard it.

Time always passes quickly when people are busy. During this period, Zhang Yunfei is mainly busy with soldiers' training, and sometimes goes to the recruit battalion to guide training. Now Zhang Yunfei has recruited about 2,000 people and established two recruit battalions. Now, there are almost 5,000 new and veterans of the 719th Regiment.

The current training of live-fire shooting has increased the training intensity. Each soldier can fire 20 bullets a day, and everyone's shooting level has improved very quickly.

With the successive production of various workshops in the Huanglongxia Arsenal, the troops' ammunition is also sufficient. The ammunition production workshop can reach hundreds of thousands of rounds per month, and the artillery shells can produce 3,000 rounds per month. According to Xu Kaixian, the production of ammunition production workshop will double in three months.

The first batch of six cannons in the Type 92 infantry cannons were also manufactured two days ago. Through test firing, the performance was comparable to that of the Type 92 infantry cannons produced by Xiaogui.

Today, there was even greater good news. The sample gun of the ak-47 automatic rifle has been manufactured. Through test firing, it basically met Zhang Yunfei's expected requirements. Then through improvement, it can be mass-produced.

The two updates today are over, and there is a third update to thank everyone for their support.


Chapter completed!