Entering Li Tianfeng's office, Liu Wei said happily: "Boss, Embraer has really sent a fax again, look."

After saying that, Liu Wei handed the fax he had just received to Li Tianfeng. This was an English fax. Li Tianfeng looked at it a little and was full of joy. Li Tianfeng said: "I can't tell that Embraer has a very sincere attitude."

Liu Wei smiled.

Li Tianfeng said: "Mr. Liu, for their good attitude, I will reply to them. Comrade Marceldo is welcome to come to our company for business inspection."

Upon hearing this, Liu Wei smiled again, and then happily left Li Tianfeng's office. Looking at Liu Wei's happy look, Li Tianfeng also smiled, and it was a turn of things!

There are no eternal friends, only eternal interests. Li Tianfeng has a deep understanding of this, especially in the shopping mall.

The little dissatisfaction with Embraer gradually disappeared after two days of hanging him out. At this moment, Li Tianfeng was thinking about the business inspection that Marceldo and his party were about to come.

………

Embraer.

Marceldo has been waiting for Tianfeng Technology's reply, and was left unwind by Tianfeng Technology for two days. Marceldo was really nervous, worried that Tianfeng Technology would turn to form a cooperative relationship with Bombardier.

In his office, Marceldo walked back and forth, looking anxious and uneasy.

Just when Marceldo wanted to ask about the situation in person, the door of his office was pushed open, saving even the knocking of the door. His assistant rushed in and said happily: "Boss, great news, Tianfeng Technology Company finally responded!"

Upon hearing this, Marceldo was overjoyed and didn't care about his assistant rushing in without knocking on the door. Marceldo snatched the reply fax from Tianfeng Technology Company. He glanced at him quickly, and then looked very happy!

"Joseph, hurry up, go and book the air ticket immediately, we will set out tomorrow!"

…………

Tianfeng Technology Company.

Li Tianfeng watched Liu Wei happily leave his office and smiled happily. At this moment, Xu Lilong called him on a long-distance phone.

Xu Lilong said: "Boss, great news. Bombardier has made it clear that when our turbofan 17 engine completes a series of verification and test flights, Mr. Smith will personally bring a group to our company to negotiate the engine ordering matters."

Upon hearing this, Li Tianfeng was overjoyed. Today is a good day, and the good news is really one after another.

Li Tianfeng said: "Mr. Xu, thank you for your hard work. We very much welcome Mr. Smith's visit. Mr. Xu, you have made an indelible contribution!"

Xu Lilong was also very happy, "Boss, this trip to Canada was quite smooth. Our turbofan 17 engine performed well in a series of test flights. I felt proud of my face in front of these foreigners. In two days, I will lead the team back."

Li Tianfeng said: "Mr. Xu, you can play in Canada for a few more days and relax."

Xu Lilong said: "Thank you, boss. I know that the company must have a big business, and I have wanted to come back long ago."

Li Tianfeng smiled and Xu Lilong's professionalism, Li Tianfeng felt very satisfied.

Xu Lilong will return to the company. Li Tianfeng will not be so busy, and will focus more on the research and development of the turbofan 20 engine. Since learning that Mr. Wu came out of the mountain and presided over the development of the turbofan 19 engine, Li Tianfeng has obviously felt pressure.

Li Tianfeng thought to himself that the turbofan 20 engine is the first small-halogen-match military turbofan engine of Tianfeng Technology. It is only allowed to succeed, not fail!

Thinking about the development of the turbofan 20 engine, Li Tianfeng got up, left his office, and went to the aviation engine research and development center.

Li Tianfeng listened to the reports of Sun Xiaoping and Qiu Wen'an, and went to the design rooms of his subordinates to check the design progress of the turbofan 20 engine.

In the current aviation engine R&D center, the design of the turbofan 20 engine is the top priority. Every time Li Tianfeng goes to a design room, he is busy.

A design room is generally mainly responsible for the design of a certain component of an aircraft engine, such as designing the fourth room is responsible for the design of the turbine part, designing the fifth room is responsible for the design of the combustion chamber part, etc.

There are nearly 3,000 technical personnel in the Aero Engine R&D Center, among which hundreds of senior professional titles are. This is a powerful design team. Li Tianfeng looked at it and was very satisfied.

In the second room of the design, Li Tianfeng saw several designers discussing the design of the fan receiver. Obviously, there is technical controversy.

It happened that Li Tianfeng and Sun Xiaoping walked into the second design room and happened to see these designers controversial and blushing. Seeing this, Li Tianfeng and Sun Xiaoping looked at each other and smiled. Such controversies in design technology are completely allowed by Tianfeng Technology Company.

The more you argue, the more you become clearer, and the same is true for the design of aircraft engines. The debate on aircraft engine design technology is basically a tradition for Tianfeng Technology.

Seeing Li Tianfeng, these technicians stopped immediately. Seeing this, Li Tianfeng said calmly: "It doesn't matter, you are discussing yours."

One of the designers seems to be not old, and Li Tianfeng has an impression. He is one of the chief designers of the second design room. He has a very good design level. His surname is Ye. He used to be a senior engineer at a domestic aero engine design institute. He joined Tianfeng Technology Company two years ago.

Mr. Ye said: "Mr. Li, we have controversy over the strength calculation of the fan shaft design. Come and take a look for it."

The fan shaft of the turbofan 20 engine is a key part and a main force-bearing part. The strength calculation is very important and critical. The fan shaft of the turbofan 20 engine is improved and designed based on the fan shaft of the turbofan 16 engine. The structure is basically similar, but there are certain changes.

Li Tianfeng did not refuse and walked over and asked, "Mr. Ye, how did you calculate?"

Mr. Ye said: "Mr. Li, I used manual methods to calculate it myself, while Mr. Zhang and others used stress-bearing software to analyze the conclusions."

Li Tianfeng carefully looked at the calculation methods and calculation results of Master Ye and Gong Zhang, and then said: "You both have some problems with calculations. Master Ye, there is a little problem with your calculation formula and method. Master Zhang, when you use the stress-bearing software to analyze, the parameters are input incorrectly."

After saying that, Li Tianfeng sat in front of the computer, entered the parameters on the force analysis software, and said: "Mr. Zhang, this is finite element analysis, the parameters should be like this. You see, this parameter 41.25 should be 41.15, and the outer diameter parameter must also be changed..."

Li Tianfeng personally modified the parameters slightly, and then the analysis results came out quickly, which was a little different from what Mr. Zhang just analyzed.

Mr. Zhang looked at it carefully. After looking at it, Mr. Zhang said admirably: "Mr. Li, this is true. I really have a problem with inputting these parameters just now."

Li Tianfeng nodded, then took a piece of white paper, and Sun Xiaoping quickly gave Li Tianfeng a pen. Li Tianfeng took the paper and pen and listed a long list of formulas on the white paper, and then said: "Mr. Ye, the force analysis should be carried out like this, you see..."

While talking, Li Tianfeng was calculating quickly. Even a designer next to him gave Li Tianfeng a calculator. Li Tianfeng gently pushed it away, and there was no need for a calculator at all.

It was very smooth, and a piece of white paper of A4 size was quickly filled by Li Tianfeng. While calculating, Li Tianfeng also said why is this? The result was calculated, which was consistent with the results of the computer analysis just now.

Looking at Li Tianfeng's calculations and listening to Li Tianfeng's explanation, Ye Gong finally understood and nodded quickly, "Mr. Li, this is true. My calculation just now is really a bit inappropriate."

Li Tianfeng gently patted Master Ye on the shoulder, "Mr. Ye must be used to using computers for analysis. Manual calculations will inevitably lead to errors. Try to use as little as possible."

Li Tianfeng could see that Master Ye was relatively old and definitely had no computer when he was in college. He was used to manual calculations. Li Tianfeng sometimes performed manual calculations, but he still used advanced tools such as computers.

Regarding the level of manual calculations, Li Tianfeng asked himself that no one in Tianfeng Technology Company could match it, but with advanced tools such as computers and the force analysis software is becoming more and more advanced, it is better to use this tool.

Worker Ye is in his forties and has been working hard to learn computers and use computers in recent years. After hearing Li Tianfeng's words, Worker Ye nodded: "Mr. Li, I will remember your words and try to use computer-aided design and computing as much as possible in the future."

"Yes." Li Tianfeng clicked a little bit satisfied, then took a quick look in the second room of the design, and left satisfied.

After Li Tianfeng left, many designers from the second room of the design room surrounded him, and some people even said, "Mr. Ye, our Mr. Li is so amazing. How complicated is the force analysis of the fan shaft? It can be calculated by hand."

"Our Mr. Li has a high technical calculation level, and you didn't notice how skilled Mr. Li was when he used computer software to perform stress analysis just now, and I admire him!"

"Sure enough, it's true. The rumor is that Mr. Li is very skilled. I have never believed it before, but now it seems that the rumor is not wrong at all."

“…”

Hearing the surprise and admiration of the designers around him, Mr. Ye took the A4 white paper that Li Tianfeng had just written the calculation formula, and thought to himself that it seemed that compared with Mr. Li, there was still a huge difference in technology, and he had to continue working hard.

For a long time, Mr. Ye asked himself that he had more than 20 years of experience in aviation engine design and was a senior engineer, and he was a bit proud of his technology. Now it seems that every mountain is higher than the other, and the technology is endless.

"Well, work hard in the future to improve your design business level and try to narrow the gap with Mr. Li." Ye Gong thought resolutely.

………
Chapter completed!