Chapter 42

With a heart of inquiry, Zhuang Jianye searched the archives for a long time, but he did not find the reason why Yonghong factory did not continue to produce "Spey" turbofan engine.

He doesn't come here to make a factory history. Even if he knows clearly, he won't give any salary increase. Anyway, it's OK to know that Yonghong factory has the technical strength to produce the key components of "Spey" turbofan engine. Why do you care so much.

So Zhuang Jianye began to sort out his files again. As a result, a big guy came out. A meeting minutes was stored in cabinet 17, and the words "secret" were marked on the brown paper file bag.

At that time, Zhuang Jianye's heart beat wildly after seeing it. He had never seen such high-end things in his two lives. He wondered if he would report to the director first. After all, the documents with the word "secret" had a lot to do with each other.

But before he put the idea into practice, he saw a standard line of stamp writing in the lower right corner: "the confidentiality period has passed, please file it separately."

Check the files in 1971 again. The period of confidentiality is 10 years. It has been more than a year. I feel relieved and don't open them politely.

Take out the thick minutes of the meeting, and you can't pull them out any more.

It turns out that the above record is a little-known history. It happened in 1970. In this year, a large plane of a certain country crashed in frontier x, leaving only debris.

After negotiation through diplomatic channels, the country agreed to provide the factory technical data of the crashed aircraft. With the approval of the higher ministries and commissions, Yonghong factory was instructed 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 has long been the unprecedented luck of Yonghong factory, which made them have the luck to plan and survey the aeroengine of a large aircraft for the first time.

Therefore, the leading group of high-power turbofan engine was immediately established in the factory, under which the surveying and mapping design group was set up.

At that time, it was still a special period and the working class was very important to lead everything. So Xue Ronggui, the director of the second branch factory, was the leader of the surveying and mapping design group. Ren Qingxiang, the first chief engineer of Yonghong factory, was the deputy leader. Ning Zhishan, his father-in-law, was just the office director of the group and was responsible for the logistics work.

Today's chief engineer he Ming can't even be the Deputy group leader, so he 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 group at that time was full of talents, including almost all the elites of Yonghong factory at that time.

However, the establishment of a surveying and mapping design group with elites could not change the backward scientific research conditions at that time. There was no special surveying and mapping site in the factory at that time, so the finished product warehouse could only be used as a place for engine storage and surveying and mapping.

In order to keep secret, soldiers stood guard at the door day and night, the windows were not dare to open, the warehouse was stuffy and hot in summer, and the temperature exceeded 40 ℃.

Of course, the harsh environment is nothing. The key is the engine itself, which has more than 20000 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 situation, assembly process, processing alternative of supporting finished products, electronic system, oil system, bearing, etc.

In addition, these parts should be converted from English units to metric units.

In a word, the turbofan engine used in this kind of large aircraft is too complicated. An iron bird that flies steadily in the sky for several hours, an aircraft that must take off and land safely for countless times, takes steel as its muscle and fuel as its blood heart. Its complexity has reached the peak of human wisdom.

However, it is human beings, not gods, who design and manufacture it. The whole process of transforming energy into supersonic flight power is mysterious and worshipped.

There is only one set of samples, which is very valuable. It has to be reassembled for engine test run. It must not be damaged.

Dozens of people in the surveying and mapping design group are responsible according to the workshop of the branch plant, and more than ten professional groups are set up, including turbine, compressor shaft, disk, blade, combustion chamber, flame tube, casing, nozzle, complete set of finished parts, etc., to survey and map the parts and components respectively.

The metallurgical and chemical group is responsible for the analysis and testing of various metal and non-metallic materials, and the study of heat treatment and heat treatment processes.

In this way, it took more than a year to complete the mapping of the modified turbofan engine and the compilation of all technical data.

At that time, but in a special period, when the vast majority of industrial and mining enterprises were completely paralyzed, under such circumstances, it was a miracle that Yonghong factory could complete the technical surveying and mapping of the turbofan engine.

However, when Yonghong factory was preparing to prepare materials for the next specific development of turbofan engine according to the technical data, the central ministries and commissions at that time assigned the task of developing large passenger aircraft to H City, namely the national famous "Yun 10" project.

The project is under the command and coordination of the central ministries and commissions. 262 enterprises and units from 21 provinces and cities participate in the research and development. H city aircraft company is established and directly under the leadership of H city.

Ren Yongxiang, deputy leader of the surveying and mapping design group and chief engineer of Yonghong factory, received an urgent order from the Ministry, asking him to rush to H city to participate in the development of "Yun 10" project.

The high-power turbofan engine, which was regarded as a treasure by Yonghong factory, also set off from the railway freight station in the factory, and was escorted to H city with tens of thousands of parts drawings, tooling drawings, metallurgy, technology, final assembly and other information.The whole staff of Yonghong factory worked hard for a year, and the results were so forcefully taken away. Not to mention, the chief engineer of the technical core was also taken away. It was said that it was chicken flying eggs. It was not too bad to lose his wife and lose his army.

This incident has dealt a great blow to Yonghong factory. Many people were demoralized and transferred from Yonghong factory. From then on, cadres and workers were not interested in tackling key problems and scientific research. They felt that even if they did it, they would make wedding clothes for others.

These emotions are all in the minutes of the meeting. Although the words are obscure, Zhuang Jianye can still feel the grievance and resentment between the lines.

"Maybe that's why the factory is so focused on transforming civilian products."

Close the file, Zhuang Jianye sighed, vaguely understand why Yonghong factory did not become a "Spey" turbofan engine manufacturer. It is estimated that the situation is similar to that of large aircraft, but there is no such detailed record to confirm.

To tell you the truth, he would not be angry about who was picked peaches, including Zhuang Jianye. Because of this, Zhuang Jianye put down the minutes of the meeting and continued to rummage in cabinet 17, just to find some original information.

Even if they can't bear the heavy responsibility of large aircraft, we should let people know that the ancestors of Yonghong factory have struggled, worked hard and fought for the development of aircraft. Even if they are excluded, their contribution can't be obliterated.

I can't be the master of large aircraft development, but I still have the ability to show these files to the world.