Chapter 1554: Old and strong

After leaving the aircraft factory, Qin Guan stayed in Huating City for another day, and exchanged the exchange. After everything was set up, he went to the 4430 factory without stopping. Up to now, it has been the biggest obstacle to his own aviation technology progress. , Is the third generation of turbofans!
After obtaining a batch of F110 engines from Eagle Country, it can temporarily maintain its own production. However, it is not easy to obtain subsequent engines. It must rely on its own engine technology to be mature.
After these few years, what is the progress of our advanced three-generation turbofan?
"Mr Qin, welcome to the 4430 factory." After learning of Qin Guan's arrival, Mr. Wu hurried to greet him.
Now, Mr. Wu’s hair is all gray, his face is full of wrinkles, and there are bloodshot eyes in his eyes, like candles, burning to the end. Seeing Mr. Wu like this, Qin Guan's heart is touched. Yes, for the sake of the strength of the motherland, how many scientific research workers, like Mr. Wu, are wearing stars and moon, working day and night.
Qin Guan and Wu are always acquainted with each other. Qin Guan has been involved in the technical negotiation of the Spey engine from the beginning. After that, the improvement of Spey and the development of advanced turbofan engines have continued to the present.
There was a rumbling roar behind him. When he heard this sound, Qin Guan understood: "Are our engines still being tested on the bench?"
In engine research and development, the first step is design, the second step is manufacturing, and the third step is test run. In the third step, there will be countless twists and turns during the test run.
In fact, the last time Qin Guan came here, he started a test run, but within a few minutes of starting, the engine blade broke. This big accident almost caused casualties.
now what? How's it going?
"Yes, a thousand-hour long test run is going on." Old Wu said. When this number came out, his face was confident.
One thousand hours! There are twenty-four hours in a day and seven to eight hundred hours in a month, and their engines have been running continuously for more than a month!
Previous engines, such as Turbojet-7, had a lifespan of only 200 hours, but the engine we are producing now has a design life of 1,000 hours. Of course, this is not the end.
After this long-term test run, the entire engine will be disassembled, and each blade will be inspected to see how much life is left, so that its life is finally determined.
At the same time, this also shows one thing. The current engine can work stably for a long time!
Wearing earmuffs, Qin Guan walked into the high-altitude test bench together. Now, it has all been done indoors. The flame sprayed by the engine is discharged to the outside through the pipe to reduce noise. On the high-altitude test bench, an engine is there. Roaring and looking at it, Qin Guan seemed to see the dragon soaring.
Next to the camera, there is also a full set of data. These data can be directly transmitted to the Gas Research Institute for simultaneous analysis. Therefore, it is impossible to cheat. Besides, with Wu’s personality, he absolutely disdains cheating. of.
A row of equipment, connected to the computer of Hanxin Technology, is conducting data analysis. Although it is driving all the time, the fuel consumption, the temperature of various parts, etc., need to be monitored and analyzed in real time. Those young Boy, they have grown up now.
Qin watched for a few minutes, but couldn't see anything. After all, the engine was on like this, and laymen could only watch the excitement. So Qin Guan came out, and in the meeting room, Mr. Wu began to introduce Qin Guan.
"This long test run is considered the last time. After finishing this experiment, we are planning to install the machine." Old Wu said, "I'm afraid you have to ask for your help."
How to install?
Just think about the Taihang in future generations. The Su-27 was used for testing. One side is the third uncle and the other is Taihang. In this test, of course, you have to call a Tomcat fighter to come over. It’s just that the air force or the navy They all looked at the Tomcat like a baby, they needed to coordinate, and Qin Guan would coordinate, that would be better.
After it completed the installation and test flight, it was also the first to change the Tomcat. After all, the Tomcat is a dual-engine. After flying on the Tomcat for a period of time, it will be replaced with a single-engine J-10.
Qin nodded his point of view: "During the installation and test flight, we must also act in accordance with the scientific laws. We must do all the projects well, don't shirk, and carefully look for the clues of various failures and the reasons."
Fortunately, we have completely imitated the F110. What we have to overcome is mainly the materials, processing and assembly. The design of others is already mature. Our bigger challenge comes from the turbofan-15.
This is different from Taihang. The original Taihang wanted to combine the advantages of F110 and Sanyifu, and combined the two together. As a result, there was always a mismatch.
"It seems that our fighters use their own heart, and it's just around the corner." Qin Guan said: "Now, our team should also start preparing for engine improvement projects."
Wu Jiongji is already old. This project is his last project. He has actually reached the age of retirement, but he has been fighting on the front line. Now, he heard Qin Guan say that he wanted to improve, so he got serious and watched The information Qin Guan took out.
"This is to take out the core engine of F110 separately and add a large fan outside to form a passenger aircraft engine with a thrust of about 100 kN. This is just an overall idea. The follow-up details will probably have a few cars. Shipped one after another."
The engine project of passenger aircraft can no longer be pushed. Compared with the engine of this kind of fighter aircraft, the passenger aircraft is easier. After all, the throttle of a fighter must constantly change. The engine is constantly impacted by stress, and the blades are prone to aging, while the throttle of a passenger aircraft There are very few changes. What it needs is low fuel consumption and long life. It can pass a long test run here, and it can actually meet the needs of the core aircraft of the passenger aircraft engine. Just add a large fan outside.
"This outside fan, handed over to the 4460 factory for processing, is the most suitable." Wu Lao took it and said seriously.
Qin Guan took the entire F404 engine production line to the 4460 factory. The diffusion bonding-superplastic forming equipment required for blade processing was also produced in the 4460 factory. After the workers and the equipment were run-in, the yield rate was very high. of.
Qin nodded his opinion: "Everything is up to you to coordinate. Our Yunxing is waiting for this engine. At the same time, there is also a technical data for a modified gas turbine."
When he took it out, Qin Guan hesitated for a while, and gave it all to Mr. Wu, would he be overwhelmed?
"Don't worry, I promise to complete the task!" Old Wu said, patting his chest, and his gaze was once again on the gas turbine plan in Qin Guan's hand.