Tianfeng Technology Company.

Li Tianfeng was also watching the military promotional video of "Into the Military Camp" on his computer in his office. Seeing Wu Zhishi's agile figure in the promotional video, seeing the new Y-8 formation flying, especially the close-up of the Y-8 engine part, Li Tianfeng was also excited.

All of this, in the final analysis, is mainly due to Tianfeng Technology. If there is no powerful turboshaft D engine and if there is no its own turbofan 16 engine, there will be no new Wuzhi 10 and new Yun-8 aircraft now.

Not only these two aircraft, but also the military's new transport helicopters, and the current H-6 long-range bomber.

Although the old long-range bomber, H-6, did not appear publicly in the promotional video of "Into the Military Camp", has completed a series of test flights, performed very well, and rejuvenated for the second time.

Li Tianfeng is naturally familiar with the new H-6 model. This bomber has begun to enter small-scale production. One H-6 equipped with two turbofan 16 engines will greatly increase in both range and bomb load.

From beginning to end, after watching the promotional videos of "Entering the Military Camp", Li Tianfeng couldn't calm down for a long time. Li Tianfeng thought to himself that if he had a lifetime, he could upgrade the military's aviation equipment and reach the world's top level, and there would be no regrets in his life.

After thinking about this for a long time, Li Tianfeng got up and prepared to go to Sun Xiaoping to take a look.

Walking into Sun Xiaoping's office, Sun Xiaoping was looking at the 3D color picture of the turbofan 20 engine drawn by Li Tianfeng with great enthusiasm.

Looking up at Li Tianfeng, Sun Xiaoping quickly got up and said happily: "Boss, our turbofan 20 engine is so beautiful. It makes people fall in love with it with just one glance."

Li Tianfeng smiled, "Mr. Sun, the design of an aircraft engine should not only fully consider the various performances of the engine and the production and manufacturing process of each component. It should also consider the beauty of the engine."

Li Tianfeng adheres to this in the design of each engine, whether it is the turboshaft d and turboshaft e engines, or the turbofan 16, turbofan 17 and turbofan 18 engines.

Each engine designed and developed by Tianfeng Technology Company not only has excellent performance, strong manufacturing technology, but also very beautiful, with the beauty of modern aviation engines.

Sun Xiaoping pointed out: "Boss, this is worth learning from. In the future aircraft engine design, we will definitely remember this."

Li Tianfeng nodded. Now Li Tianfeng is not only a technical leader, but also almost equivalent to the mentor of the entire aviation engine research and development team. Some design concepts, Li Tianfeng will instill in everyone from time to time, Sun Xiaoping, who is closer to Li Tianfeng, has gained the most.

Li Tianfeng said: "Mr. Sun, I have completed the panoramic 3D color picture of the turbofan 20 engine. In a few days, one-half and one-quarter of the cut pictures will be completed."

Sun Xiaoping was happy, "Boss, with these graphics, everyone's morale will be greatly encouraged and can also play a good guiding role in the design."

Li Tianfeng pointed a little. However, he still reminded: "The graphics are for reference only, so everyone must remember this."

"Yes." Sun Xiaoping nodded. Then he said, "Boss, you are here just right. The turbine rotor of our turbofan 20 engine has been designed."

"Oh." Li Tianfeng said: "Mr. Sun, it's progressing quite fast. How long has it been since the full design stage been entered."

Sun Xiaoping said: "Boss, the main reason is that the turbine part has very little design changes, which are basically the same as the turbine of the turbofan 16 engine."

Because the core engine of the turbofan 16 engine is adopted, the turbine part, combustion chamber part, compressor part, fan part of the turbofan 20 engine is highly similar to the turbofan 16 engine, but there are some modifications and improvements based on the engine of the small channel.

Among them, the turbine part has the smallest changes and the fastest progress, and the fan part has the largest changes. From the previous large channel to the current small channel, the design of the fan part will also take the longest time and workload.

Sun Xiaoping opened his computer and printed it into Li Tianfeng's eyes a 3D design drawing of the turbine rotor. It looks very similar to the turbine rotor of the turbofan 16 engine, but the size is a little smaller.

The blades are still third-generation single crystal hollow super-cooled turbine blades, and the turbine disk is also a powder metallurgical turbine disk with double-web plates. The structure and shape of the turbine shaft are basically similar to the turbine shaft of the turbofan 16 engine.

The turbine of the turbofan 16 engine is low-pressure first stage, high-pressure third stage, and the turbine of the turbofan 20 engine is also low-pressure first stage, but the high-pressure is changed from three stages to two stages.

In addition, the maximum thrust of the turbofan 16 engine is 50,000 pounds, while the maximum thrust of the turbofan 20 engine is 330,000 pounds. The thrust is different, and the load of the turbine part is also different. Based on this, there are some changes in the turbine part of the turbofan 20 engine, but the amount of changes is much smaller than that of the fan part.

Sun Xiaoping took the initiative to get out of the way, and Li Tianfeng sat on Sun Xiaoping's office chair, in front of the computer, watching the design of the turbine rotor seriously.

Because it is a special design software, the size, tolerance and technical conditions of the turbine rotor are clearly clear, Li Tianfeng looked at it very carefully. He not only looked at the overall turbine rotor, but also looked at the various parts that make up the turbine rotor, such as turbine blades, turbine discs, turbine shafts, turbine bolts and other main and key parts.

After careful reading, Li Tianfeng said: "Mr. Sun, look here, we need to continue to improve it. The cooling hole position of the turbine blades should be moved slightly, and the taper of the turbine spiral is also recommended to change from 1 to 48 to 1 to 50..."

Li Tianfeng's technical level is there, and he looked at it very carefully just now, and he still saw many problems. Although it is not a major problem, some problems are not small problems.

Seeing this, Sun Xiaoping quickly recorded it one by one, and would improve and improve it one by one according to the questions raised by Li Tianfeng.

Li Tianfeng said: "Mr. Sun, the turbo rotor will be improved and improved again, and then organized the design review. Notify me of participating during the review."

The turbine part is a very critical and important part of the engine, and there is no mistake at all. Li Tianfeng attaches great importance to it and will definitely participate in it in person.

Sun Xiaoping said: "Mr. Li. Give us a week to improve and perfect the design of the turbine rotor. After our internal review is completed, we will notify you to participate in the second review."

Li Tianfeng nodded, and then asked Sun Xiaoping a lot about the design and development of the turbofan 20 engine, and also explained a lot about the design.

When leaving the aviation engine R&D center, Li Tianfeng thought to himself that it is better to have a ready-made core engine, otherwise, the design of the turbofan 20 engine would not be so fast, and it would be impossible to design a turbine rotor so quickly.

………

Bombardier, Canada.

On the special airport for test flights, a branch passenger plane slowly landed and stopped. Then, a series of ground crew members, engineering and technical personnel, as well as Peng Jiangtao, who was from Tianfeng Technology's Canada office, walked quickly towards the plane in the distance.

This regional passenger plane equipped with two turbofan 17 engines has completed a series of test flights. It was the last project's test flight, and now the plane is stationary, which means that a series of test flights have been completed.

What Peng Jiangtao is most concerned about is the test flight situation. If this test flight is also perfect, it means that a series of test flights have been successfully completed, and it also means that the performance of these two turbofan 17 engines is very outstanding.

Peng Jiangtao took several of his subordinate technicians to carefully check the appearance of these two turbofan 17 engines, and everything was abnormal.

The fan air intake is clean, and each fan blade is very normal. Open the engine cover and the entire engine is also very normal.

Peng Jiangtao even pulled out the engine's lubricant filter and saw that the filter was clean. Just like the last test flight, this means that the engine has no wear at all, because if there is wear, the metal chips generated by the wear will rush over with the lubricant and eventually remain in the lubricant filter.

After some inspection, Peng Jiangtao nodded and said happily to his two subordinates: "Xiao Liu, Xiao Zhao, our turbofan 17 engine performed very well, and all inspections were completely normal."

Soon, Bombardier's engineering and technical personnel also completed a series of inspections, and one of the foreigners who looked like a leader gave Peng Jiangtao a thumbs up from afar.

"Peng, your engine is very good, and all the test flight data are completely normal."

Seeing this, Peng Jiangtao smiled happily and thought to himself that he would tell the good news in China as soon as possible so that everyone would be happy.

………

In the office.

Smith is looking at a thick report, compiled and sent by the technical department, which is a series of test flight reports for the turbofan 17 engine.

"I didn't think that Tianfeng Technology's turbofan 17 engine performs so well, it is a truly low fuel consumption, low noise and low emission fourth-generation large-halogen than turbofan engines."

"The only drawback is that the safety and reliability of the engine cannot be further verified for the time being. In this regard, it must be accumulated over a long period of time to reach millions of flight hours, or even millions of flight hours, before the final conclusion can be drawn."

"However, Tianfeng Technology Company mentioned in the description of the turbofan 17 engine that the turbofan 17 engine is a high-safety and high-reliability engine. I don't know if it is true."

"Maybe, this is probably true. As can be seen from a series of verification test flights of the turbofan 17 engine, this engine is likely to be a truly high-safety and high-reliability engine."

Looking at this report, Smith thought a lot in his mind, and at the same time, he fully recognized the turbofan 17 engine. Even Smith thought in his mind that perhaps he should purchase the turbofan 17 engine from Tianfeng Technology Company and install a variety of branch technologies produced by his company.

"Dong, dun, dun!"

There was a knock outside the door, and Smith withdrew his thoughts and said aloud: "Please come in!"

…………

Today's third update, the third update is here!
Chapter completed!