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Chapter 42 The past of the big plane

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    With an inquiring heart, Zhuang Jianye searched in the files for a long time, but could not find the reason why Yonghong Factory did not continue to produce "Sibei" turbofan engines.

    He simply stopped looking for him. He was not here to do factory history. Even if he figured it out, he wouldn't give him a raise, so why bother? Anyway, he knew that Yonghong Factory had the technical strength to produce key components of the "Spei" turbofan engine.  That¡¯s it, why bother with so much.

    So Zhuang Jianye started sorting out his files again, and a big thing came out of it, a meeting minutes stored in filing cabinet No. 17. The kraft paper file bag was also marked "Secret".

    Zhuang Jianye¡¯s heart beat wildly when he saw it. He had never seen such a high-end thing in his two lifetimes. He thought about reporting it to the director first. After all, documents with the word "secret" are very relevant.

    But before he could put this idea into action, he saw a standard stamp in the lower right corner: "The confidentiality period has expired, please file it separately."

    I checked again and saw that it was a file from 1971. The confidentiality period was 10 years. More than a year had passed. Then I breathed a sigh of relief and opened it without being polite.

    I pulled out the thick meeting minutes inside, and once I looked at them I couldn¡¯t pull them out again.

    It turns out that what is recorded above is a little-known history. It happened in 1970. In this year, a large plane from a certain country crashed in the X border area. The plane was burned and only the wreckage was left.

    After negotiation through diplomatic channels, the country agreed to provide the factory technical data of the crashed aircraft. After approval by the superior ministries and commissions, the country instructed Yonghong Factory to organize a group of experts to rush to the X border area to remove the engine from the crashed aircraft and transport it back to the factory.  .

    An air crash brought unprecedented luck to Yonghong Factory, giving them the first chance to dissect and map a large aircraft aero engine.

    So the factory immediately established a high-power turbofan engine leadership group, with a surveying and mapping design group under it.

    At that time, it was still a special period, where the working class led everything, so Xue Ronggui, now the director of the second branch factory, was the leader of the surveying and mapping design team, and Ren Qingxiang, the first chief engineer of Yonghong Factory, was the deputy team leader. His father-in-law Ning Zhishan was then  He is just the office manager of the group and is responsible for the logistics.

    Today¡¯s chief engineer He Ming can¡¯t even become a deputy team leader and can only be the director of the surveying and mapping office. As for Qiao Chenyu, he is just a technician.

    It can be seen that the surveying and mapping design team at that time was full of talents, including almost all the elites of Yonghong Factory at that time.

    It¡¯s just that the elite surveying and mapping design team could not change the backward scientific research conditions at that time. The factory did not have a dedicated surveying and mapping site at the time, so it could only free up the finished product warehouse as a place for engine storage and surveying.

    In order to keep it secret, soldiers from the army stood guard at the door day and night, and the windows were not dared to be opened. In summer, the warehouse was stuffy and hot, with the temperature exceeding 40 degrees Celsius.

    Of course, the harsh environment is nothing. You can just grit your teeth and get through it. The key is the engine itself, which has more than 20,000 parts. Therefore, the people who set up the surveying and mapping design team must first understand the main structure of the engine, and then the material conditions.  , assembly processes, processing alternatives for supporting finished parts, electronic systems, lubricating oil systems, bearings, etc.

    In addition, these parts must be converted from imperial units to metric units.

    In a word, the turbofan engine used by such a large aircraft is too complicated. It is an iron bird that can fly steadily in the sky for several hours, and an aircraft that must take off and land safely countless times. It uses steel as its muscles.  The complexity of the heart, which uses fuel as its blood, reaches the pinnacle of human wisdom.

    But it was designed and manufactured by humans, not gods. The entire process of converting energy into supersonic flight power is so mysterious that people worship it.

    There is only one set of samples, which are very valuable. They have to be reassembled for engine testing and must not be destroyed.

    Dozens of people in the surveying and mapping design team were assigned to work in the branch factories and workshops, and more than a dozen professional groups were established, including turbines, compressor shafts, discs, blades, combustion chambers, flame tubes, casings, tail nozzles, and complete sets of finished parts, to survey and map parts respectively.  Parts.

    The metallurgical and chemical engineering team is responsible for analyzing and testing various metal and non-metallic materials, and researching heat treatment and performance treatment processes.

    It took more than a year to complete the surveying and mapping of the modified turbofan engine and the preparation of all technical data.

    You must know that it was a special period when most industrial and mining enterprises were completely paralyzed. Under such circumstances, it has to be said that it is a miracle that Yonghong Factory was able to complete the technical surveying and mapping work of the turbofan engine.

    However, just when the Yonghong Factory was preparing to prepare materials for the next step of specific development of turbofan engines based on the technical data, the then central ministries and commissions assigned City H the task of developing a large passenger aircraft, which is known throughout the country."Yunshi" project.

    The project is commanded and coordinated by the central ministries and commissions. 262 enterprises and units in 21 provinces and cities across the country participated in the development, and an H City Aircraft Company was established, directly under the leadership of H City.

    Ren Yongxiang, who is the deputy leader of the surveying and mapping design team and the chief engineer of Yonghong Factory, received an emergency transfer order from the ministry, requiring him to rush to City H to participate in the development of the "Yunshi" project.

    The high-power turbofan engine regarded as a treasure by Yonghong Factory also urgently set off from the factory's railway freight station, along with tens of thousands of parts drawings obtained from surveying and mapping, tooling drawings, metallurgy, technology, final assembly and other documents for armed escort.  To City H.

    The whole Yonghong factory had been working hard for a year, and the fruits of it were suddenly taken away. Not only was the chief engineer at the core of the technology also poached, it was said that it was a waste of money, and even the wife lost the money.  Soldiers are never an exaggeration.

    This incident had a huge impact on Yonghong Factory. Many people were transferred out of Yonghong Factory out of frustration. From then on, the cadres and employees were not interested in tackling key scientific research. They felt that even if they did it, they would just be making wedding dresses for others, so why be thankless?  .

    These emotions abound in the subsequent meeting minutes. Although the writing is relatively obscure, Zhuang Jianye can still feel the grievance and resentment between the lines.

    ¡°Perhaps this is the reason why the factory is focused on transforming itself into a civilian product.¡±

    Closing the file, Zhuang Jianye sighed, and he vaguely understood the reason why Yonghong Factory did not become a "Sibei" turbofan engine manufacturer. It is estimated that the situation is similar to that of large aircraft, but there are no such detailed records to confirm it.

    To be honest, no one would be angry if they had peaches picked on the stall, including Zhuang Jianye. Because of this, Zhuang Jianye put down the meeting minutes and continued to rummage in the filing cabinet No. 17, for no other reason than to be able to  Found some information left behind from the original.

    Even if they cannot bear the heavy responsibility of large aircraft, people must know that the ancestors of Yonghong Factory have struggled, worked hard and fought hard to develop aircraft. Even if they are excluded later, their contribution cannot be erased.

    ¡°I can¡¯t be the one to participate in the development of large aircraft, but I still have the ability to show these files to the world.

    If you like Soar My Aviation Age, please collect it: Soar My Aviation Age is updated the fastest.  (Remember the website address: www.hlnovel.com
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