The 40mm grenade pattern drawn on the sketch is completely different from Lu Jiadong's previous bullet shape, not only beautiful and generous, but also very smooth, the arc of the streamline makes it full of modernity, not only that, Yang Limin also marked the theoretical basis of the bomb design on the sketch, as well as the results of aerodynamic calculations, just a glance at the value, Lu Jiadong knew that the shape of this ammunition is already the best state in aerodynamics.

Holding this sketch, Lu Jiadong couldn't help frowning, such an excellent aerodynamic design, even as a traverser, he may not have this skill, what kind of secret is hidden in this Yang Limin, but Lu Jiadong also understands that even if he chases after him and asks him face to face at this time, Yang Limin will not say, maybe only when the knot in his heart is untied, people will know the answer!

Lu Jiadong was right, and the next day, when he found Yang Limin with the sketch, he also tried to ask him face to face in order to solve the doubts in his heart, but Yang Limin just responded with a smile:

"As long as what I do works, nothing else matters!"

In the next few days, Lu Jiadong and Yang Limin submitted the feasibility report of the light automatic grenade launcher to the factory party committee, because the previous research and development of weapons and equipment led by Lu Jiadong has brought considerable benefits and reputation to the factory, so the report submitted by Lu Jiadong was unanimously approved by the factory party committee.

Of course, the development of new equipment still cannot avoid the problem of submitting for approval, but with the previous precedent of a gun-mounted grenade launcher, the Wanshan Factory was also much smarter in the application for approval of automatic grenade launchers, and soon formulated a plan to jointly improve the grenade launcher with the assault division.

The assault division was very satisfied with the gun-mounted grenade launcher of the Wanshan Factory, so when it received the plan for launching automatic grenades, it agreed without any hesitation; because it was jointly developed with the troops, the Provincial Department of Science, Technology and Industry for National Defense did not raise any objections, but demanded that normal military production must not be affected during the development process.

In this way, after a series of complicated procedures, the light automatic grenade launcher of the Wanshan Factory was finally approved by the superiors, but before that, Lu Jiadong and Yang Limin had already invested in the development of the race against time, as a weapon suitable for the combat characteristics of our army, Lu Jiadong put forward three core technical and tactical requirements for the light automatic grenade launcher:

That is, individual carrying, easy operation, and powerful firepower, the main reason for formulating these three core technical and tactical indicators is that our army's motorization and mechanization have not yet been realized, and the infantry battlefield mobility mode still relies on a pair of foot soles, and our army is very particular about large-scale mobility, rapid intersperse, and outflanking behind enemy lines.

Just like the classic work in our army's arsenal, the Type 63 107mm rocket launcher, which is known as the AK in the artillery, the target given by the army to the artillery development unit in those years was that the decomposed parts of the artillery should not be necked, hips or wide, and the center of gravity should be close to the body, in order to facilitate the disassembly and maneuvering of the artillery.

Based on this requirement, China's military industry department has designed a Type 63 107mm rocket launcher with a simple structure, simple operation and easy production, so that he can still be seen on the battlefield in the 21st century, and has become a rare classic in the world's arsenal.

Lu Jiadong's core mobile idea of developing a light automatic grenade launcher coincides with the 107 artillery, and although it does not have the luxury of becoming an immortal classic like the 107mm rocket launcher, it must conform to the actual situation of our army.

"Our light automatic grenade launcher uses an air-blown working principle!" Lu Jiadong held a small blackboard and explained the basic principles of light automatic grenade launchers to Qiao Junfeng, Liu Wei, Chen Zihao and other people in the room:

"What is the air blowing type, that is, when the ammunition is fired, the gunpowder gas enters the air chamber opposite to the frame and the bolt through the air guide hole and the air duct, and the gunpowder gas forces the frame to recoil through the partition of the frame, and walks the free stroke before unlocking, driving the bolt to unlock, the reason why we use this form of gas conduction is because of its compact structure"

Lu Jiadong said while drawing a schematic diagram on the small blackboard, although the development task is very arduous, and the work is also very busy on weekdays, but Lu Jiadong will still find time to explain some design and manufacturing principles to the workers in the factory, in his opinion, the development of the military industry still depends on talents, so Lu Jiadong realized this as early as the 78 type assault rifle.

Therefore, since he gave a lecture to the Type 78 firearms development team, Lu Jiadong has fixed this form, no matter how busy he is, as long as he is in the Wanshan factory, Lu Jiadong will find time to give lessons to the employees in the factory, and the factory is very supportive of Lu Jiadong's idea.

In particular, Gao Xinghua, secretary of the party committee of the factory, greatly appreciated Lu Jiadong's practice of improving the knowledge and skills of the workers in the factory, not only gave Lu Jiadong a lot of convenience, but also posted the time and place of Lu Jiadong's lectures and other information on the propaganda board of the factory, and even went to listen to the lectures himself.

Not to mention the workers in the factory, the people in the factory all believe in the supremacy of technology, Lu Jiadong is now the most comprehensive technology in the factory, as long as he hears that Lu Jiadong is teaching, he will prepare in advance, the phenomenon of overcrowding occurs from time to time, and Lu Jiadong's lectures are also very targeted, and he will take out and talk about any new research and development projects in the factory, in order to let the factory workers understand the development, production and manufacturing of weapons and equipment in combination with actual projects, so as to better understand the truth.

Today, Lu Jiadong is talking about the light automatic grenade launcher that is being developed, mainly to introduce the principle of gas conduction of this equipment to everyone, just when Lu Jiadong finished drawing a simple air guide map on the blackboard, Yang Limin held a stack of design drafts under his arm, pushed open the door of the office of the technical department, and when he came in, he saw a room full of people, and he couldn't help but be stunned!

Lu Jiadong watched Yang Limin, whose eyes were red, come in, and knew that something was wrong, so he smiled and said to the people present:

"Comrades, that's all for today's section, and we'll talk about the rest next time!"

The employees in the room who were listening with relish, hearing Lu Jiadong's words, all flashed disappointed expressions on their faces, wishing that such a class would end as late as possible, and it was best to never end it, but Lu Jiadong, as the keynote speaker, still has his own work to do, and these employees are very clear in their hearts, so even if they are disappointed, they don't have too many objections, and they all hurriedly copied the picture that Lu Jiadong just drew to the book in the notebook, and then left stupidly!

"Lao Yang, you are"

"It's still the same old problem!" Yang Limin rubbed his red eyes and pulled a chair and sat down.

Although Yang Limin is old, as long as he receives the research and development task, he is like going crazy and devoting himself to the research and development.

Therefore, it is inevitable that Yang Limin needs to undertake a lot of computing work, but with the deepening of Lu Jiadong's lectures, Wanshan Factory's computing power has increased a lot, and they are all young people in the prime of life, so it stands to reason that Yang Limin's work should be reduced a lot, but he took the initiative to undertake other classification projects, so that his workload has not decreased, but increased a lot.

Not only that, Yang Limin is very desperate in his work, as long as there are some problems, he often soaks in the job for a few days and nights until the problem is solved.

Looking at Yang Limin's pale face and red eyes, Lu Jiadong knew that he probably hadn't slept for a few nights, so Lu Jiadong poured a glass of water and handed it to him:

"Lao Yang, you must rest well, don't get tired!"

"Alas, I'm used to it!" Yang Limin took the teacup and showed a faint smile on his face: "Besides, aren't you also boiling, we're both the same!"

Lu Jiadong knew more about Yang Limin's temperament and knew that persuasion could not be persuaded, so he cut to the chase: "Is it still a matter of a closed institution?"

"That's right!" Speaking of business, Yang Limin immediately became serious, and then put the water cup he had just gotten on the table next to him, unfolded the drawing he had just taken, and pointed to the structure of the opening and closing station drawn on it:

"Our locking mechanism adopts the locking mechanism of the latest Type 77 anti-aircraft machine gun, although it has been improved, but the overall weight is still heavy, so that the recoil inertia is large, even if we add shock absorption measures on the butt, but there is still a certain distance from our design indicators!"

As he spoke, Yang Limin took out a few chapters of manuscript paper in his briefcase and handed it to Lu Jiadong: "In the past few days, I have deduced the force table from the nodes calculated by using the finite element mathematical model of the situation we designed, and the results have proved that the recoil is still on the high side!"

Lu Jiadong took this form, looked at it and frowned, in order to gain time, Lu Jiadong tried to use mature technology in the development of light grenade launchers, such as the opening and closing station on the launcher, and the locking plate offset locking mechanism of the Type 77 anti-aircraft machine gun that had just been installed in the troops.

Although Lu Jiadong and Yang Limin improved it to reduce the weight, from the results of Yang Limin's calculations, the effect of the improvement was not obvious due to the structural limitations of this closure.

So Lu Jiadong clasped his hands on his chest, lowered his head and slowly walked up in the office, while Yang Limin also sat on the seat and looked at the drawings and fell into thought, I don't know how long it took, the two looked at each other at the same time, and their voices were surprisingly unanimous:

"With a new type of locking mechanism!"

After the two said this, they looked at each other and couldn't help laughing

ps:Thank you book friends Tianhai Xiangyun、hzwangdd、Xuanyuan Wu、Secretly _ah、Xisai funeral smile for the reward,Thank you for your support!

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