In fact, the core part of this turbofan engine and the core engine of the turboshaft D engine have many similarities in design, and it is precisely because of the basis of the turboshaft D engine that the design of this turbofan engine is relatively smooth.

In the work computer of Li Tianfeng's office, there are many 3D design drawings of turboshaft D and turboshaft E engine parts, and of course, there are also 3D design drawings of many parts of this turbofan engine.

The 3D design of the core engine of the turboshaft D engine, the 3D design of the core engine of this turbofan engine, were all called up by Li Tianfeng, and at this moment, Li Tianfeng was in front of the computer, looking at the core of these two engines seriously.

After a closer look, there are really a lot of similarities in design, but the core of the turbofan engine is more advanced and more technological.

Such an advanced, such a high-tech core machine, and then develop the next turbofan engine in the future, there is a solid foundation, you know, an advanced core machine, can derive many types of aero engines.

This takes the core engine of a turbofan engine as an example, and on this basis, a variety of military and civilian turbofan engines can be developed in the future, and even military turbofans with small bypass ratios.

Full of interest and looking at it seriously for a long time, Xu Lilong knocked on the door and entered Li Tianfeng's office, seeing Xu Lilong's happy face, there must be something happy.

Sure enough, Xu Lilong said: "Boss, great news!" ”

Li Tianfeng smiled slightly and said, "Mr. Xu, is there any news from the Amazon?" ”

Xu Lilong said: "Boss, you are really like a god, the Amazon company has given us an official letter, and will negotiate on our turboshaft E engine, and is ready to purchase our turboshaft E engine." ”

Li Tianfeng said: "This Amazon aviation industry company needs a lot of turboshaft engines every year. Looks like we're going to have to produce at full capacity. ”

Xu Lilong said: "Boss, have you secretly made a lot of efforts, otherwise, how could they take the initiative to contact us and clearly negotiate with us about the turboshaft E engine." ”

Li Tianfeng smiled mysteriously and said, "I've done some hard work, but." The key this time is that God helped us, and we took advantage of the good luck. ”

Xu Lilong said: "Mr. Li, you mean the crash of a plane in a South American country. ”

Li Tianfeng nodded: "If it weren't for this crash, Amazonas Airlines wouldn't have acted so fast." ”

Xu Lilong knew about the crash, and the time of the crash had a great impact, a transport helicopter produced by the Amazon Aviation Industry Company crashed, and the defense minister of a certain country happened to be on the plane, up to the unfortunate defense minister below, including the crew. A total of more than a dozen people died, and many international media reported on it.

After the fact, it was an engine failure, and the power of this transport helicopter was the TV3-117 turboshaft engine.

The impact was great, and the top management of the Amazon Aviation Industries Company was also anxious. No, I immediately began to consider Tianfeng Technology's turboshaft E engine with excellent performance, and sent a formal business letter to Tianfeng Technology.

Last time, negotiations between the two sides were almost complete. Just waiting for the formal contract to be signed, but the company of Madasic disrupted it. That's how things went.

Afterwards, Li Tianfeng also investigated clearly, it was the Madasic Company that was stirring up the situation, and the key person was Ivanov, who had met once at the military's spring order meeting last time, and Li Tianfeng knew the truth to find out. The turboshaft E engine will compete with the TV3-117 turboshaft engine internationally.

After the last cooperation with Amazonas Airlines was lost, Li Tianfeng did not give up, and it was not Li Tianfeng's character to give up when encountering difficulties. As Li Tianfeng expected, there was finally movement on the part of the Amazon company.

Xu Lilong said: "Boss, the price of our turboshaft E engine, which was agreed with Miguel last time, was 15.8 million yuan per unit, and this time, are we taking the opportunity to add one or two million yuan." ”

This idea is very attractive, but Li Tianfeng thought about it and said: "Mr. Xu, forget it, the price of 15.8 million yuan is already very good, in addition, Amazon Aviation Industry Company may be our long-term partner in the future, the relationship between the two sides can not be too stiff, we take the opportunity to increase the price, and give a bad impression to the other party." ”

Xu Lilong nodded and said, "Boss, that's okay, I'll contact the Amazon Aviation Industry Company first, and I'll report to you when I have the results." ”

Li Tianfeng waved his hand and said, "Yes, the first thing in the early stage will be handed over to you." ”

Seeing Xu Lilong leave his office, Li Tianfeng felt inexplicably happy in his heart, this time, this matter should be a sure thing.

Last time, when the two sides negotiated, the turboshaft E engine has not yet obtained the airworthiness certificate, and now, the first turboshaft E engine has been certified along the way, and the current turboshaft E engine can be said to be complete with three certificates.

The 3,000-hour life test of the turboshaft E engine is also nearing the end, and the turboshaft E engine has basically completed all a series of verification tests.

Li Tianfeng thought in his heart: "Amazon Aviation Industry Co., Ltd. purchases its own vortex E, is it 100 units, 200 units, or 300 units?" ”

Thinking so in his heart, Li Tianfeng was slightly excited, and he really looked forward to the Amazon company.

…………

Tianfeng Technology Company, assembly workshop.

Ten more assembly benches have been added to the assembly area, from the previous ten assembly benches to the current twenty.

Considering the prospect of vortex E, Li Tianfeng made such a decision, the number of benches doubled, fortunately, the area of the assembly workshop is large enough, even if one or twenty more assembly benches are added, there is no problem.

However, the assembly bench of 20 turboshaft engines is sufficient, and the rest of the empty space should be reserved for the turbofan engine currently under development, this medium-sized civil turbofan engine, which is very technical and has excellent comprehensive performance, and is positioned in the civil regional airliner market, if nothing else, its prospects are also very good.

In the final assembly area, on the 20 final assembly benches, not only the turboshaft D engines are being assembled in an orderly manner, but even two or three turboshaft E engines are being assembled.

Shun lì obtained the airworthiness certificate, basically completed a series of verification tests, and the turboshaft E engine entered the stage of small batch production in accordance with Li Tianfeng's requirements.

The back door of the assembly workshop, which is also a huge logistics door, is enough for large trucks to enter and exit, and the engine of the assembly workshop completes the final assembly, and is sent to the test workshop to be transported out from here by truck, and occasionally, the engine transported from the test workshop is also transported from here.

A medium-sized truck, on the tooling frame of the carriage, a turboshaft E engine is being transported in from outside this gate, the huge logistics door, the outermost automatic control door slowly opens, the truck drives in, after coming in, the gate slowly closes.

Then, the door of the inner layer slowly opened, and the truck continued to drive in, which was regarded as entering the assembly workshop, using the overhead crane to hang the engine with the tooling frame, and then the engine was sent to the assembly area.

In the assembly area, Qiu Wen'an waited there early with several designers and technicians, looking at the engine that had been tested for 3,000 hours, Qiu Wen'an's eyes were slightly excited.

3000 hours of test, this is a very remarkable achievement, but also very golden, in the domestic aviation industry, there is rarely a new research and development of aero engine test run to 3000 hours, the last record is the turboshaft D engine zào, this time, the turboshaft E engine has also reached this achievement.

After 3,000 hours of test runs, this turboshaft E engine is still very normal, at least the number of test runs is very normal.

The final assembly area can be used for both the final assembly of the engine and of course the dismantling of the engine, where the engine will be disassembled immediately.

After several inspectors, technicians, and designers jointly conducted a basic inspection of the appearance of the engine, Qiu Wenan waved his hand, and the engine was immediately disassembled in accordance with the process requirements.

Disassembling an engine, naturally, is much faster than assembling one, several workers are skillful and methodical, and the turbine part of the engine is disassembled first, then the reducer and accessories part, and then the compressor......

A designer, holding a high-definition camera, kept taking pictures next to him, taking pictures of the internal parts of the engine after 3,000 hours of testing, and these photos will be archived as precious materials.

In just one or two hours, the engine was disassembled into a parts state, and the parts were transported to the inspection area, neatly sorted by parts, and placed on several inspection tables.

For example, the parts of the compressor part are placed together, and the parts of the turbine part are placed together, Qiu Wenan is not too dirty, holding a magnifying glass in one hand and parts in the other, taking it seriously and looking carefully.

After such a long time of test running of the engine, there must be carbon deposits, oil stains and other things on the parts, but Qiu Wenan really ignored these things, watched them with relish, and even nodded excitedly sometimes.

Li Tianfeng entered the assembly workshop, and when he came here, Qiu Wenan was watching it intently, and he didn't notice that Li Tianfeng had come over at all.

Li Tianfeng saw Qiu Wenan holding a part and looking at it so intently, Li Tianfeng couldn't help but smile slightly, and didn't bother Qiu Wenan, sat down in front of one of the inspection tables, picked up a part and looked at it seriously.

This engine has undergone 3,000 hours of test runs, and Li Tianfeng naturally wants to take a personal look at the situation of some key parts after such a long test run.

…………

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