In the 1960s and 1970s, the international situation was extremely tense. In addition to having a big killer like the atomic bomb to deter the enemy, China's equipment development was not good. In particular, the whole system was copied from the former Soviet Union, and its technological development was very slow. China's founding leaders were worried about large-scale war at any time. Therefore, in the hinterland of the southwest, Secretly became many top secret research projects.

These projects are basically deep in the mountains and deep underground.

Like the ninth court, Lian Yun doesn't think he knows the secrets of Daba Mountain.

Now there is a huge secret research center at the foot of Chengdu 132 factory, which is also the 810 research institute that studies the engine most urgently needed in China. In addition to being surprised, he is not shocked at all. Perhaps this was once an integral part of China's underground nuclear Great Wall.

China's underground nuclear Great Wall has always been a hidden legend, but no one knows the specific location and specific situation. Even the legend only vaguely points out that the project is very huge. No one knows where the project is, who is responsible for it, and how large it is. The only thing I know is that China's nuclear power is hidden deep underground.

This involves state secrets, and cloud will not ask about it because it can kill the cat.

Huang qiaosong also saved the trouble of explaining to Yun Fei.

"Lao Huang, can this thing really be installed on my plane and let my plane fly? Are you kidding? " Yun Fei is still very uncertain about this matter.

China is very backward in the research of aeroengine. It is not that Yun Fei doesn't believe it, but that he has always measured the world with everything in the world where he originally lived. Moreover, there is no big difference in the development trajectory of most things in the world.

At the beginning, he pinned his hopes on Ukraine, which has been suppressed by Europe, America and old maozi. After all, their aircraft technology and engine technology are recognized by the whole world. The whole world has opened a special aviation university in their country, only studying aircraft, not aerospace.

However, due to international pressure, this country with powerful technology has not made much manufacturing in this area because it has no capital investment. The GDP of the whole aviation industry ranks only 90th in the world

Cloud Holdings has so much capital. Especially now, the old man's meaning of not letting cloud non loan is very clear, that is, to let him invest his money in domestic projects rather than Ukraine. If 810 Institute's research can't meet his requirements, it's not so easy to do.

At that time, the whole large aircraft project may come to a standstill because there is no engine.

"Just put a hundred and twenty hearts into it. Without the diamond, who dares to do this porcelain work? " Huang qiaosong said helplessly to Yunfei.

If he hadn't always known the progress of 810 Research Institute, he wouldn't dare to guarantee Yun Fei like this, would he? After all, no one is 100% sure about the engine. What China lacks most is the high-precision and cutting-edge technology that tests the whole country's industrial system and scientific and technological system.

Once the engines of civil airliners are obtained, there will be no problem in requiring more sufficient power and military engines working in a worse environment.

"It's not that I don't believe it, but that I don't even see anything. How do you tell me to believe it. ARJ-21 is now short of engines. All parts of the aircraft are ready to place orders with major domestic machinery factories and material factories. If there is no supporting engine and propulsion system, it will not be able to fly at that time. Americans and Britons will speak again because of this. Don't I have to be silly? I bet my fortune on it... "Yun Fei sighed.

Huang qiaosong also sighed: "besides, there is really no problem with this project. This project has always focused on the top designers and technicians in our country. It can be completely successful within one year. If you have to provide the aircraft for the test... "

"Well, I'll ask Ma Fengshan and Cheng to come here from time to time, and then you can communicate again. If you can't, don't be brave. The country can afford these losses. I can't afford this loss now. If I lose, then I can only sell all my industries and beg along the street, and maybe I can support my huge family... "These words are not only said to Huang qiaosong, but also to Hou Mingrui, director of 810 Research Institute.

This research institute has always been the shadow of factory 132 and institute 611. The funds used for the project come from various research projects of factory 132 and the research funds of institute 611. The personnel are directly attached to these two factories.

Even the people in their labor and capital department don't know this very well, and Hou Mingrui is not only the director of 810 Research Institute, but also the deputy chief designer of 132 factory. He is mainly responsible for the design and research of fighter propulsion system. He also holds an important position in 611 Institute, responsible for aircraft engine research

"Does factory 132 have aeroengines? Boss, are you right? " For Yun Fei's statement, not only Ma Fengshan doesn't believe it, but Cheng doesn't believe it from time to time.

Yun Fei nodded seriously. At the same time, he lowered his voice and said to them, "do you know 810 Institute? It is said that the research team of this project not only took over the technology from Qin Fei to bass engine, but also took over the turbofan 8 technology of that year. It has been going on for nearly 20 years. If it is not successful, it should be successful... "

As soon as he heard Yunfei say 810 Institute, Ma Fengshan immediately looked at Cheng around him with a puzzled face.

From time to time, Cheng's face was suddenly enlightened: "well, I heard someone say 810 institute all the time, but no one knows what the institute does, and no one knows where the Institute is..."

"Lao Cheng, how do you know this?" Ma Fengshan immediately became confused.

Although he has not been responsible for aircraft design and research since 1980, and has been engaged in theory and taking sick leave, he still knows very well about the situation of China's entire aviation industry system.

China's 810 Research Institute has never heard of.

"In the 1980s, not many people clamored that our turbofan 8 and large aircraft projects were backward and could not obtain the technical equipment recognized by the market? At that time, many technicians who studied turbofan 8 either died of illness or went abroad, but no one knew where they would eventually go. The northeast is the heavy industry base of the whole country, especially some difficult precision manufacturing businesses. Most of the time, they are manufactured and processed there. I didn't go to the northeast after we got off the Yunshi project. At that time, I saw that the codes of these drawings all start with 810. No one knew this when I asked others. I had a drink with Lao Wan once, This guy undoubtedly said "810 Institute..." Cheng showed a look of memory from time to time.

Wan Zhiyong, Secretary of Hafei, came from technology, but his technology is not very good.

"Lao Wan knows this project?" Ma Fengshan was immediately surprised.

Cheng shook his head from time to time, smiled bitterly and said, "if he knew, I wouldn't say it. I vaguely heard someone say about this Institute..."

"Well, don't discuss this. Anyway, the research institute is right there. We can't run away. Let's go and see it. However, we can now get a clear position. This special charter flight connects you from Shanghai to Chengdu, but it is to evaluate whether their Yanhuang I engine meets the use of our ARJ-21... "Yun has to go deep into the source of this 810 Research Institute.

Anyway, he understands that there are countless secrets hidden in China.

Not to that extent, even if you have money, status and status, you can't know.

The government is very strict about the confidentiality of some super projects. Just like in Yunfei's original world, before they graduated, the Northeast Air Force recruited in their school, and the salary was very attractive, but it didn't say what kind of work to engage in, what type of work to do, and how long to rest.

The only thing is to offer some conditions: the minimum contract is signed for ten years. There are three home leave in ten years. The total is six months. The unit is responsible for solving personal problems

At that time, there were only three people in Yunfei's school, and something happened in the third month. A friend couldn't stand the life that there was no network and armed guards were watching when making calls. He only wrote content when writing letters, and had to be reviewed countless times

Finally, the man heard that he was sentenced to life service, and he was also in the unit where he signed the contract

Since then, Yunfei has been insensitive to some secret units

"Whether it is suitable for our aircraft project can't just listen to the parameters they report to us?" Cheng stared at Yun Fei suspiciously from time to time.

In this regard, Yunfei is not a professional.

Moreover, in order to obtain research funds, some national research project teams often like to use exaggerated rhetoric. In these areas, the consequences are even more serious if they are only so close.

"Of course, let's go to see the tests of those engines. If it's really like what they said, we'll spend money on producing an additional prototype. If not, we'd better go to Ukraine and finish it before we start. Anyway, the static pressure test of this thing also needs a prototype, and the wind tunnel test and structural design also needs constant time. We can't spend more money on the whole project in order to save... "