Qin Zhenhua chatted and laughed with these heavyweight leaders, and also received recognition and praise from the leaders. Everyone on the entire plane was watching. Maybe when they first got on the plane, everyone didn't think much of this young man and just thought he was just a guy.
They are just people who used special means to get a quota.
Who would have thought that he has real talent and knowledge and can satisfy both Commander Huang and Minister Zhu?
The first stop of the inspection is naturally the United Kingdom. No matter what differences there are on other imported items, when it comes to tank guns, there is nothing to say, it is the NATO standard L7 tank gun!
This tank gun was developed by the British. As for its origin, many versions have been spread, and one of them is quite interesting.
After World War II, the Soviet Union produced the classic T-54 medium tank. When this tank appeared, Western countries were very disapproving at first, thinking that it was just an upgraded version of the classic T-34 tank.
The existing artillery is more than enough to deal with it.
As a result, during the Hungarian incident in 1956, Britain got the opportunity to get back a T-54 tank equipped with the Hungarian army.
So, facing this tank, they began to make detailed measurements. After measuring like this, their faces changed. The armor of the front of this tank actually reached 120 mm, plus the inclination angle of 60 degrees. If you convert it, vertically, etc.
The effect actually reaches a thickness of 240 mm!
It was impossible for any Western tank gun to penetrate this kind of tank, so the T-54 crisis came.
After all, this is the main equipment of the Soviet Union on the opposite side. They can use the rolling torrent of armor to push it over at any time. By then, if no tank gun here can penetrate it, what a terrible thing it will be!
In fact, if we talk about the psychological pressure they faced at that time, it was probably the same as the T-62 crisis faced by the country after the battle on a certain island in the north.
The hands of Westerners are starting to tremble. They must have a new type of tank gun to deal with this crisis!
And such a glorious task was naturally handed over to the old industrial power, the United Kingdom.
The UK has a profound industrial heritage and has created a lot of brilliance. In recent years, the UK has made considerable contributions to engines. The jet engine was invented by the British. Up to now, they have
This kind of engine has even begun to be used on warships, which is far ahead of the world.
The British Royal Arsenal accepted this task, and then, they lived up to expectations. After three years of research, they finally built this gun in 1959. Since then, it has become a generation of famous guns in Europe, installed in many
It has become a standard tank gun on the country's tanks.
In fact, regardless of whether this statement is reliable or not, in short, this creative L7 tank gun finally allowed the West to get rid of the crisis of the T-54. Even, not only the T-54, but also the current T-72, this tank gun has
It can be easily penetrated. With the continuous development of new ammunition, in the later period, more advanced armor-piercing projectiles were used, which even allowed the penetration depth of this tank gun to exceed 400 mm, which was almost as powerful as the early 120 mm smoothbore tank gun.
Moreover, its benefits are not only high power, but also the light and small size and good adaptability brought about by the exquisite manufacturing process, which is deeply loved by tank designers.
If a tank gun wants to have high power, it must use more charges, and the tank gun must withstand greater bore pressure. The L7 tank gun is such a high-bore pressure tank gun. As the pressure in the bore increases, then
The pressure on the pipe wall will also increase.
Therefore, the solution cannot be solved by simply increasing the wall thickness of the gun barrel. This will not only increase the limit, but also bring additional weight.
The turret needs to rotate, and if the barrel is too heavy, there will be greater resistance to rotation. In this way, new materials and processes must be applied.
Electroslag remelting steel and self-tightening process of barrel are the key to achieving performance.
If we compare it specifically, the main gun of the T-54 series tank is the 100mm D10T gun. The tank gun transplanted from this kind of naval gun is not as good as the L7 gun in terms of barrel length, bore pressure, shell muzzle velocity and other performance. However,
In terms of weight, it is a full 1.95 tons. The barrel of the L7 tank gun is only 1.28 tons, which is 35% lighter.
In this way, the adaptability of this tank gun is very good. Countries have adopted this tank gun one after another. Naturally, they are attracted by the fact that it is easy to install and the breech is also small, so the space inside the tank turret can be more generous.
Now, this tank gun is still their main force. Even when the United States develops new tanks, it still temporarily installs this tank gun on it.
It can be said that this tank gun can be called a famous British gun.
We are determined to acquire this kind of tank gun this time. We not only need to purchase this kind of tank gun, but also have the technology to manufacture this kind of tank gun. With these technologies, we can manufacture larger caliber and high-bore pressure tank guns.
of.
However, it is not easy to get such a harvest!
Qin Zhenhua also put a lot of effort into this. Now, he showed his plan to the two team leaders and got their approval. However, it is still unclear whether it will succeed in the end.
It all depends on people, as long as you think of a way, you will definitely achieve your goal!
With this thought, Qin Zhenhua returned to his seat, only to find Wang Erzhu beside him, his face turned pale.
"Er Zhuzi, are you airsick?" Qin Zhenhua was stunned.
Civilian airliners do not do high-maneuvering maneuvers. Moreover, the flight of this kind of mainline airliner is very smooth without too many bumps. It is not at the same level as taking a boat. Moreover, Wang Erzhu usually rides in bumpy rides.
Tank, he didn’t faint either.
Is it because of the air pressure?
The passenger plane is flying at an altitude of 10,000 meters, and the air pressure outside is very low. Although the cockpit is pressurized, the pressure is still lower than the normal ground pressure. Is this the reason?
Wang Erzhu was still struggling to hold on. After all, this was his first time flying. This experience was really bad, but he must not be embarrassed!
"Unbutton it and breathe easier, maybe it will be fine." Qin Zhenhua said, unbuttoning his collar.
If the air pressure is low, then open your mouth and relax.
After the buttons were unbuttoned, Wang Erzhu tried to breathe twice. He felt a little better at first, but then he felt his stomach was turning upside down and he couldn't bear it anymore.
"No, I want to vomit." Wang Erzhu said, stumbling towards the bathroom.
Fortunately, I had lived in the guest house of the No. 1 Machinery Factory for a while, so I knew what was going on with the toilet. After entering, Wang Erzhu suddenly fell down on the toilet.
"Sorry." Qin Zhenhua followed and looked at the washstand aside, where a middle-aged woman was washing her hands. When she heard Wang Erzhu's vomiting, she immediately showed an expression of dissatisfaction. Qin Zhenhua quickly called to apologize. After all,
Those who can get on the plane must be capable and have a higher status than himself and Wang Erzhu.
The woman snorted dissatisfied and glanced at Wang Erzhu again. At this time, Wang Erzhu was lying there, looking very embarrassed. His collar had been untied. Lying like this, the back of his neck was exposed, and even a piece of his neck was exposed.
The special cyan birthmark was also exposed.
When the woman saw this birthmark, her heart suddenly trembled.