Tianfeng Technology Company, assembly workshop.

Today's assembly workshop can be described as very warm, Li Tianfeng, Sun Kang, Xu Lilong, Sun Xiaoping, Qiu Wenan, Zeng Qinghai and so on are in the assembly workshop, the purpose of everyone here is to take a look at the turbofan 17 engine after completing 300 hours of sustained testing.

The engine has been disassembled, the parts have been cleaned, neatly placed on several large inspection tables, everyone is in front of the inspection table, looking at these parts with great interest.

Xu Lilong is an administrative cadre, good at business management, aero engine used to be a layman, after joining Tianfeng Technology Company, so long contact, ear and eye, coupled with his own learning, the engine is no longer a complete layman, more or less understanding.

Xu Lilong picked up a part, looked at it carefully, and said happily to Li Tianfeng: "Boss, look at this part, it looks very new, and you can't tell that this is the appearance of completing a 300-hour long-lasting test run." ”

Li Tianfeng couldn't help but smile when he saw the parts in Xu Lilong's hand, and couldn't help but say: "Mr. Xu, this is a turbine shaft, which belongs to the whole life parts, and naturally looks very new, even after 300 hours of testing, it must look almost like a brand new, what does the whole life parts mean, Mr. Xu should know it." ”

Xu Lilong also smiled and said: "What is the whole life cycle parts of an aero engine, I know this, that is, from the start of manufacturing to the end of the engine's life after three major overhauls, the parts are generally not replaced, and the life cycle of the parts is as long as the total life cycle of the engine." ”

Li Tianfeng said: "Basically, this is the meaning, this turbofan 17 engine, after 300 hours of sustained testing, we generally focus on inspecting non-life cycle parts, such as the turbine blades of the engine. ”

After speaking. Li Tianfeng picked up a turbine blade and looked at it seriously. Those life-cycle parts, generally there will be no problems, naturally by the inspector to check, each time after the engine test, Li Tianfeng wants to come to see the parts. It's usually very targeted, take a look at the blades, bearings, as well as some hot parts, some parts that are prone to wear and tear, and so on.

Everyone stayed in the assembly workshop for a long time, and Li Tianfeng personally looked at a lot of parts, and after reading these parts, Li Tianfeng nodded with satisfaction.

Sun Xiaoping even said: "Mr. Li, after 300 hours of long-lasting driving. It's very normal. ”

Li Tianfeng nodded and said: "The situation is very good, it seems that the design of our turbofan 17 engine, the process is very mature, the selection of materials is also very good, and the subsequent two turbofan 17 engines used for the test flight of the ARJ21 aircraft can be assembled immediately." ”

Sun Kang next to him said happily: "Then I will arrange it and immediately carry out the final assembly of these two engines, and strive to complete the final assembly within two days." ”

The two engines are assembled. It will be used for the test flight of the ARJ21 regional airliner, which will also be a relatively long process. If it doesn't go well, it will be impossible to complete a series of test flight projects before the end of this year, and it is already September, and the process must be hurried.

The assembly of these two turbofan 17 engines, under Li Tianfeng's attention, is progressing rapidly. The final assembly was completed within two days, and then the factory test run was completed smoothly, which could be delivered to COMAC for test flight on the ARJ21 regional airliner.

Li Tianfeng personally went to the commissioning engineering center. I personally watched the factory test run of these two turbofan 17 engines, and the test run was in good condition.

When Li Tianfeng came back from the test engineering center, he was full of joy, and as soon as he entered his office, he immediately picked up the phone and personally called Ma Delong of COMAC.

Li Tianfeng said: "Mr. Ma, your ARJ21 regional airliner has been waiting for a long time!" ”

In order to cooperate with the test flight of the turbofan 17 engine, COMAC specially built an ARJ21 regional airliner, because the ARJ21 regional airliner has entered mass production, this ARJ21 regional airliner directly from the mass-produced passenger aircraft one of the turbofan 17 engines, a slight modification can be installed turbofan 17 engine.

The amount of changes is very small and is based only on the engine changes, such as the engine compartment, engine mounting dimensions and related structures.

Because the amount of changes is not large, the progress of the commercial aviation company is very fast, and the aircraft has been prepared early, as soon as the two turbofan 17 engines used by Tianfeng Technology Company for test flights come out, they can be installed immediately, and then carry out a series of test flights.

After receiving Li Tianfeng's call, Ma Delong was very happy: "Mr. Li, are your two turbofan 17 engines already ready to be sent." ”

Li Tianfeng said: "Mr. Ma, you are really like a god, our two turbofan 17 engines have just completed the factory test run and will be shipped immediately." ”

Ma Delong was very happy: "Mr. Li, this is great news, okay, as soon as the engine comes, we will immediately install the engine, and then start a series of test flights." ”

Li Tianfeng said: "As a civilian regional airliner, the ARJ21 regional airliner is very commercial. ”

Ma Delong said: "Of course, this is a free advertisement, we must take advantage of this to do a good job of publicity, the last C919 large passenger aircraft test flight, the effect is good, all at once won more than 100 new orders for aircraft." ”

Li Tianfeng was also happy, and said jokingly: "Mr. Ma, you eat meat, let's drink a little soup, it's not bad." ”

Ma Delong knew that Li Tianfeng was joking, and said with a smile: "Mr. Li, where is it, you are too modest, the engine is the core of an aircraft, and in the future, our ARJ21 regional airliner will all rely on your engine." ”

Li Tianfeng said: "Mr. Ma, that's right, our domestic aircraft must be equipped with domestic engines, what kind of GE engine, stand aside." ”

Maderón laughed......

Li Tianfeng took the opportunity to promote: "Mr. Ma, the third turbofan engine of our Tianfeng Technology Company, with a maximum thrust level of 10,000 pounds, the fourth-generation turbofan engine, ultra-low noise, ultra-low fuel consumption, ultra-low emissions, and super comfort ......"

After introducing the turbofan engine of the "TFES003" type, Li Tianfeng changed his words and said: "Mr. Ma, if you want to develop a forty or fifty-seat regional airliner, our engine is the best choice, and I can give you the lowest price at that time." ”

The ARJ21 regional airliner is a 90-seater, turbofan-powered, short- and medium-range regional jet with a full range of 2,000 nautical miles.

An ARJ21 regional airliner is equipped with two turbofan engines, which were previously mainly equipped with GE engines, and with the advent of the turbofan 17 engine, a large number of turbofan 17 engines may be installed in the future.

COMAC's products mainly include 150-seat C919 large passenger aircraft, 90-seat ARJ21 regional airliner, in Li Tianfeng's view, and then develop a 40-seater or 50-seat regional airliner, it will be more complete.

After listening to Li Tianfeng's words, Ma Delong naturally knew what he meant, and said with a smile: "Mr. Li, if we really develop such a regional airliner one day, we will prefer your engine." ”

Li Tianfeng said: "Mr. Ma, then it's decided." ”

…………

Capital.

Zhang Haiping said: "Mr. Li, I went to Minister Liu just now." ”

Li Tianfeng nodded, this time he came to the capital at the invitation of the military, to be precise, he received a call from Minister Liu of the General Assembly, Li Tianfeng came to the capital, and the first thing he did was go to Minister Liu.

In Minister Liu's office, Minister Liu and Li Tianfeng had a detailed conversation, and after the conversation, Li Tianfeng came to Zhang Haiping.

The two are friends, and Li Tianfeng did not hide it, nodded and said, "At Minister Liu's place, we talked for a long time. ”

Zhang Haiping said: "Mr. Li, not long ago, Mr. Wei pointed out at a high-level meeting of the military that for the J-10 and J-11 fighters, we must have follow-up power and require the development of a new engine. ”

Wei is always a military boss, ranking very high, Mr. Wei's words, everyone naturally dare not pay attention to it, no, Minister Liu, on behalf of the military, personally asked Li Tianfeng to come over and talk in detail for a long time.

Zhang Haiping, as a major general of the Armament Department of the General Staff Department, also knew a lot, and said to Li Tianfeng: "General Manager Li, you must be prepared, I estimate that at the end of the year at the earliest, at the latest at the beginning of next year, our military will issue you with research and development tasks. ”

Li Tianfeng nodded, just now in Minister Liu's office, Minister Liu had already talked very carefully, and Li Tianfeng knew it in his heart.

In a few months, it is estimated that his third turbofan engine, the "TFWS003" engine, will also be designed and finalized, and you will be completely free to carry out the development of this small signal ratio military turbofan that the military needs.

Zhang Haiping said: "The technical conditions for this new engine to be developed will be drawn up by our military immediately, and it should be issued to you along with the development task." ”

Li Tianfeng said: "Zhang Haiping, this is another challenge for us. ”

Zhang Haiping said with a smile: "Mr. Li, don't be modest in front of me, I know your technical strength, there must be no problem." ”

Hearing this, Li Tianfeng smiled easily.

Zhang Haiping reminded: "Mr. Li, however, the development task will definitely be issued to AVIC at the same time, and at that time, we will also compare your engine design schemes, who is better, and whose engine we use." ”

If the old US military wants to develop a certain engine, it will also require several companies to develop it at the same time, compare it, and finally choose the best one.

………

Today's three shifts, the second shift is complete. (To be continued......)