Tianfeng Technology Company, assembly workshop.

The engine was transported from the test engineering center to the assembly workshop for the decomposition of the engine.

It is basically a common practice to carry out a disassembly check of the engine immediately after the verification test is completed. The engine was decomposed on the day it was transported to the assembly workshop, and the parts were not cleaned for the time being, because only one verification test was carried out, and the total test time was not one or two hours, and the parts were relatively clean.

The disassembly of the engine is very fast, much faster than assembling an engine, the decomposition is completed, the parts are neatly placed on several inspection tables, several inspectors are inspecting, several designers, and several technicians are also inspecting the site.

These technicians mainly took a look at the condition of the parts after the engine was tested, Li Tianfeng did not come in person, but Sun Xiaoping and Zeng Qinghai were inspecting the site.

The two of them personally looked at a lot of key and important parts, and after reading them, both of them were happy and had a pleasant conversation together.

Sun Xiaoping said: "Mr. Zeng, no wonder the boss didn't come in person, he knew it for a long time, and he knew that there must be no problem with these parts." ”

Zeng Qinghai said: "Yes, after the engine is tested, all parts are completely normal, especially the hot parts, such as flame cylinders, turbine blades, turbine discs and other parts look very good. ”

Sun Xiaoping nodded: "The condition of all parts is good, Mr. Zeng, our technology level is getting higher and higher, the quality of the processed parts is first-class, and the quality of this engine is also great." ”

Zeng Qinghai said with a smile: "Mr. Sun, our design level is also very good, and the comprehensive performance of the engine is excellent, in addition." The processing process of each part is very good, otherwise, the first test run is not so smooth.

The two chatted happily about the situation of this engine, and then, Zeng Qinghai asked: "Mr. Sun, our other 20,000-pound thrust 'TFWS002' turbofan engine." I guess it's time for the first test run in three or five months. ”

The "TFWS002" turbofan engine has already entered the full trial production and verification of parts, and by the way, it will only take three or five months to start the verification test of the first engine.

Zeng Qinghai said: "Mr. Sun, I really have to admire the development progress of our engine, and I don't want to spend three or five years on the verification test of the first engine for other domestic aviation industry enterprises, a new aero engine." ”

Sun Xiaoping nodded and said: "The strength of the domestic aviation industry is a little weaker, and those foreign aviation industry giants." The fastest time to develop a new aero engine is a few months, from the start of the design to the first engine verification test, the fastest is a few months. ”

Zeng Qinghai was secretly speechless.

Seeing this, Sun Xiaoping smiled and said: "Of course, a new aero engine has been successfully developed in a few months, which is still relatively rare." ”

Zeng Qinghai said: "Mr. Sun." Waiting for the successful development of our 'TFWS003' turbofan engine, we have three turbofan engines with different thrust. ”

Sun Xiaoping nodded. There was a sense of relief in my heart, and there was a strong sense of accomplishment invisibly, three turbofan engines were successfully developed, and they were all fourth-generation machines, which was enough for a lifetime.

It's just that Sun Xiaoping can think of it. This is the beginning of his career, and in the next few years, under the "guidance" of Li Tianfeng, he has successfully developed advanced aero engines one by one.

The two chatted for a long time, and then walked out of the assembly workshop together. Report to Li Tianfeng together.

In the office, Li Tianfeng listened carefully to the report of the two, and was more happy in his heart, the situation of the engine was completely within his expectations, Li Tianfeng couldn't help but nod a little: "The parts inspection is completed, the data is sorted out, and the test report is formed, in addition, we must also hurry up to carry out 30 hours and 150 hours of long-lasting test run." ”

Sun Xiaoping and Zeng Qinghai glanced at each other and nodded their heads, after 30 hours and 150 hours of successful test runs, it means that this engine has been basically developed.

………

A few days later.

The engine is disassembled and inspected after the first verification test, then final assembly, and then sent to the test engineering center for test run.

At this time, Li Tianfeng was in the office, thinking deeply, thinking about the "TFWS001" turbofan engine, while Xu Lilong had just finished reporting his work and had just walked out of Li Tianfeng's office.

Xu Lilong's report is naturally the "TFWS001" type of turbofan engine design finalization, the application materials have been submitted, the expert group will complete the engine after 150 hours of testing, arrived at Tianfeng Technology Company, the design of this engine for review.

The first verification test, 30 hours of long-lasting test, and then 150 hours of long-term test, which is an important key to the design finalization review.

Imagine, if the test fails, if there is no guò many times, this design is very difficult, and it may even be yellow, because 30 hours of long-lasting test, or 150 hours of long-term test can not pass guò, how to finalize the design.

Li Tianfeng thought to himself, now, the engine has entered the 30-hour long-term test, according to the first verification test, there should be no problem with such a test run.

The 150-hour long-lasting test is slightly more difficult, but this is a long-term test run that must be carried out by the national competent authority to accept the new machine, and it must be smooth.

Li Tianfeng thought about it for a long time in his office, his heart was unusually firm, and he was very confident, according to Li Tianfeng, after 150 hours of long-term testing, it should not be a big problem.

Sure enough, the 30-hour long-lasting test run was smooth, and after the engine was disassembled, the inspection of all parts was also very normal, followed by another 150-hour long-term test run.

The 150-hour long-lasting test takes a long time, and during the test run, Li Tianfeng often goes to the test engineering center to take a look at the test run, and sees that the test has been going smoothly, and Li Tianfeng is more relieved.

……

Commissioning Engineering Center, Commissioning Workshop No. 2.

There are not only test drivers, test technicians, but also the chief designer of this engine, Li Tianfeng and Sun Xiaoping are personally at the scene, and everyone is witnessing the most critical things.

On the test control platform, one of the LCD screens shows the test time, and many people look at the beating number on it, and many people even count it silently in their hearts.

10, 9, 8, 7......

When the time jumped to 150 hours, the test commander shouted loudly, "The test is complete!" ”

On the test bench, the engine turned off and gradually stopped, which was completely different from the noise during the test just now, and the entire test control room fell into a short silence, very quiet, and it took several seconds for the test riders to come back to their senses.

After such a long time, days and nights, and such hard work, it was finally the harvest season, and many people were excited in their hearts.

"Engine back-spin is normal!"

"The engine noise, vibration has been completely normal!"

"Engine fuel consumption has been completely normal!"

“……”

One by one, it was normal, echoing in the quiet test control room, and soon, many people jumped up with cheers, seeing this, Li Tianfeng also smiled happily.

150 hours of long-lasting test run, for other domestic aviation industry enterprises, may be a difficult thing, but for Tianfeng Technology Company, it is still a one-time smooth pass.

This time, without Li Tianfeng's reminder, Xiao Guoqiang, the technical director of the second test workshop, ran out happily, and soon, there were bursts of loud salutes outside.

In order to celebrate the 150-hour long-lasting test run, the test engineering center prepared a bucket of ceremonial flowers early, and now, it is being set off at the gate of the test engineering center.

……

With the completion of the 150-hour long-lasting test run, the expert group also began to arrive in Songzhou, preparing to conduct a design review of this turbofan engine of Tianfeng Technology Company.

Li Tianfeng was far from thinking that it would be such a huge expert group, which was simply a rare high specification, which shows that the above attaches great importance to this turbowind engine.

The expert group not only reached the scale of more than 20 people, but also led the team by Wu Lao, the father of China's aero engine, who was already in his seventies, went out again to serve as the leader of the expert group.

Among the expert group of more than 20 people, Li Tianfeng also has a few acquaintances, Zhang Haiping and Zhang Hongzu are all members of the expert group, and the departments involved in this huge expert group also include the military, the Bureau of Science, Technology and Industry for National Defense, etc.

Although Li Tianfeng did not go to the airport to greet him in person, he led dozens of middle and high-level people from Tianfeng Technology Company to stand outside the gate of Tianfeng Technology Company in an early manner, and they were ready to greet him. Liu Wei took someone and a car to pick up people at the airport in person.

Xu Lilong stood next to Li Tianfeng, Xu Lilong said: "Boss, I didn't think that it would be such a huge expert group, no, this should not be called an expert group, but an expert group." ”

Li Tianfeng said: "Yes, I didn't think about it, Wu Lao actually led the team himself." ”

In the distance, on Songzhou Avenue, a convoy composed of several commercial vehicles was driving towards this side.

………

Today's two watches, the first one is sent! (To be continued......)