Rongcheng Aircraft Factory is one of the largest military aircraft factories in China and one of the factories with the highest level of national secrecy.

Rongcheng aircraft factory is very large, there are many workers, there are many branches, everyone knows that aircraft manufacturing is a system, not a factory can be completed, each aircraft is built with hundreds of thousands of parts, and located in the northwest of Rongcheng This huge factory, in fact, is a final assembly and testing base.

Today, the base ushered in a group of visitors, in fact, such visitors are every now and then, some are technical personnel of cooperative manufacturers, and some are managers of brother factories, they are here to learn from experience and learn from each other. Some are superior leaders, some are leaders in the R&D department, anyway, this form of visiting workers are used to it.

However, the deputy director and the director of the factory office in charge of the reception were a little confused this time, and they knew a few people who came to visit, and a few people who did not know each other, and in general, the people who came to visit this time were very young.

They have met He Zhixing, who studies engine materials, several times, and they have also met people from the general armament department, but these people do not seem to be the main body of this visit, and the people around them are actually a pair of young men and women.

The well-informed deputy factory director was a little confused, and the director of the factory office who had read countless people was also confused, but no matter how many questions they had in their hearts, they knew that they couldn't ask what they couldn't ask, and the humanoid air conditioners who followed them were not fun.

According to the usual reception process, the deputy director took these people around several major workshops, and went to the test flight site to watch a test flight of the product, and then. It should be a visit to the real yàn room. But. He Zhixing changed his itinerary and asked to go directly to the engine test bench.

According to He Zhixing, the test bench here is barely usable, and it is said that the test bench of the engine factory should be tested at the engine factory, but the test bench of the engine factory is busy, and this test run is just to replace some new materials, so it is not necessary to test on the highest-end test bench, and the test bench of the assembly plant has been able to meet the requirements.

Thereupon. The test run was arranged in the Rongcheng Aircraft Factory, but the deputy director did not know the reason, and the real room was highly confidential.

As for wasting half a day to visit, it is actually to make a show, and at the same time, it is also to meet the requirements of Fangshi, this goods wants to see how the airplane, the highest level of human industrial products, is made.

The test bench has been blocked, and the irrelevant personnel have been cleared, leaving only the necessary real personnel, in fact, the automation level of this test bench is quite high, and there are not many people at all. The people of the Security Bureau and the people of the security department in the venue followed one by one, and they would never let the number of people who were really yàn flow out this time.

This posture made the real people who were originally very curious about Fang Shi and Xia Yuxin nervous. There was no longer any time to guess what the hell was going on with these two young men.

According to He Zhixing, this is the most advanced high-power turbofan jet engine that China can independently mass-produce, and now China's heavy fighters are using this engine.

Fang Shi was curious: "Professor He, why do you want to be real on this kind of engine?" Shouldn't you start with a low-powered engine? ”

"Huh? Oh, Master Fang is wrong, only this kind of engine will use these new materials, how can other engines have such harsh use conditions? ”

Fang Shi knew that he was a little white, but he didn't feel embarrassed at all about this product, if he didn't understand, he didn't understand, so why pretend to understand or hide it.

"Oh, I see, but isn't this kind of engine already in mass production, what's the use of replacing it with these new materials?"

"Yes, it has great uses, the first is to further increase the operating temperature of the engine, which can bring greater output power, second, it can reduce the weight of the engine, and third, it can improve the life and reliability of the engine, which is to make the most important aspects of the engine have been greatly improved."

Fang Shi nodded slowly, it is indeed like a mountain across the rows.

He Zhixing was picked up by Fang Shi to talk about it, and continued to introduce excitedly: "This engine is actually our imitation of the Soviet Union's products, it has been introduced for more than 20 years, and it is only a few years to make qualified products, even so, this engine has actually lagged behind, even if compared with the same generation of rice products, we are much behind in terms of thrust-to-weight ratio, life and reliability of the engine, this engine can only be said to be usable." ”

"Oh, what if this time the real yàn succeeds?"

"We have thoroughly understood the principle of this engine, in fact, the current product has slightly exceeded the design capacity of the original factory, if this time the real yàn succeeds, it can be said that it is a completely different product, the thrust-to-weight ratio can even reach the level of the new engine under development, well, it is not an exaggeration to describe it as reborn."

Fang Shi felt very strange: "How can this be? According to you, you don't need to study the principle of the engine, you just need to study the material. ”

"Hehe, let's put it this way, as long as it is still a turbofan engine, in fact, it is comparing materials, the engine I just said is under development, in principle, it still belongs to the fifth generation engine, and the sixth generation is different, the principle is different, but in the end, it still depends on the material, so the material is king."

Fang Shi smiled secretly, of course, what you are doing is that materials are king, and those who are engaged in engine theory definitely don't think so, he will tell you that technological breakthroughs are king.

The two of them said this, the real yàn personnel have done all the preparations, and the inspection procedures before the real yàn are quite strict, after all, this thing is very valuable, plus the current scary posture of the real yàn room, of course, everyone is extra careful.

The person in charge of the real yàn room asked He Zhixing for instructions, and He Zhixing waved his hand, and the order to start was issued.

"Ignition!"

"Boom! ~”

After a dull thud, a puff of smoke erupted from behind the butt of the engine, followed by pale blue flames, which were not straight, but like a string of beads, which looked very good.

Half of the people in the real room are looking at the engine, half are looking at the display screen in front of them, looking at the engine are laymen, insiders will not look at the engine, they just need to listen to the engine to know that the working condition of the engine is very good.

"The working condition is stable and the output power is increased."

The sound of the engine began to change, it seemed to become lighter, Fang Shi squinted his eyes and looked around the engine, of course he wouldn't look at the number jù, anyway, he couldn't understand it, to the point that the change of yin and yang aura around the engine looked very interesting, the strong inhalation and jet of the engine actually made the surrounding yin and yang aura also violently disturbed, near the air intake, forming a bad aura field, in the rear, it was a fire attribute yang gang aura.

In other words, if a person stands near the air intake for a long time, the body will be damaged, which is a functional disorder, and if a person stands near the rear of the engine for a long time, it will cause hypermasculinity, which will cause excessive excitement or functional exhaustion.

Fang Shi thought of the structure of the aircraft he saw just now, it seems that the pilots are near the air intakes, so it seems that the pilots will be affected by the evil qi, of course, it is really difficult to say what the actual situation is, or you can inquire whether the physical functions of the fighter pilots tend to be disordered.

Fang Shi was distracted by the roaring engine, but He Zhixing, who was next to him, looked at the computer screen and his face was flushed with excitement, as if he had been beaten with a kilogram of chicken blood.

"Oh too, great, up, up the output."

"Professor He, the temperature before the vortex is almost 1700, and it will increase?"

"Plus, add to eighteen hundred."

"Professor He, our highest temperature is 1750."

"Are you sure?"

"Sure."

The roar of the engine changed a little again, and the flames seemed to be purer.

"Okay, good, very steady, now let's try to continue to improve, fifty at a time, let's start."

The person in charge of the real yàn room glanced at He Zhixing, who was a little crazy, anyway, he was in charge, and if something happened, it wouldn't be on his head, he turned around and gave an order to the operator, and the operator pushed the control rod up tremblingly.

"The rotational speed has exceeded the design maximum."

The responsible euphemism of the real yàn room reminded that now, the temperature before the vortex displayed on the comprehensive display has reached 1950, which is already the number of engines under development, and the person in charge of the real yàn room feels that the engine in the distance may explode to pieces at any time, of course, it is very safe here, but it's a pity that the engine, this is hundreds of millions of dollars.

He Zhixing waved his hand impatiently: "I know, continue to improve and see if I can get on 2200."

Lose your marbles! Everyone in the real yàn room came to this conclusion, they looked at each other, and then focused their eyes on the face of the person in charge of the real yàn room, the person in charge of the real yàn room looked around with a bitter face, it seemed that no one could give him an idea, if it was in normal times, he could still call the factory director, but now under this posture, he estimated that this was not allowed.

"Okay, okay, do what Professor He asks, raise it every five minutes, pay attention to the number of items at any time, and alert as soon as there is a change."

He Zhixing looked at the person in charge of the real yàn room playfully, he didn't say anything, the facts will speak, in the real yàn room, this material has withstood a high temperature of 2400, as well as a ninety ton of blade tip tensile test, the only thing to worry about now is whether the bearing part can work, but this bearing is made of materials used in the engine under development, it should be no problem, at most the life is limited.

It seems that the next direction is wear-resistant materials, which should be made of composite ceramics, and He Zhixing has begun to wander excitedly. (To be continued......)