Tianfeng Technology Company.

Two turbofan 16 engines will be produced and manufactured, which will be used for the test flight of the C919 passenger aircraft, and the production will start on the same day, however, the parts that will be put into production can not only be the amount of two engines, but the number of parts for ten turbofan 16 engines will be put into operation at one time.

This once again shows Li Tianfeng's courage and self-confidence.

Generally speaking, the number of prototypes of a new aero engine is generally six to eight, and small batches of parts are generally not manufactured until these prototypes have completed a series of tests and verifications.

The reason is very simple, that is, a series of problems may arise and expose during the process of testing and verification of the prototype, and in response to these exposed problems, the engine design may be changed, or even redesigned.

If the design is changed, the size or structure of some parts will be changed, and the parts manufactured according to the original design drawings cannot be used and can only be scrapped.

If it is put into small batch production before this, many parts may be scrapped, resulting in relatively large losses.

However, Li Tianfeng is very confident that the possibility of heavy design changes for the turbofan 16 engine is very low, and even if the design changes or refinements are to be made, it is a small change, and the loss to the parts is not large.

After receiving the production task of producing and manufacturing ten turbofan 16 engines, Sun Kangke was far from being as calm and confident as Li Tianfeng, and specially ran to Li Tianfeng's office.

Sun Kang said worriedly: "Tianfeng, investing in the production and manufacturing of ten engines at one time, this risk is a little too great, in case it ......."

Li Tianfeng smiled confidently and said, "Brother-in-law, do you remember the development of our turboshaft D engine?" At the beginning, we also invested in the production and manufacturing of ten engines at one time, otherwise. At the beginning, the development of the turboshaft D engine was not so fast. ”

Sun Kang thought about it for a moment and nodded, "Tianfeng, how sure are you about the turbofan 16 engine, after all." This is a turbofan engine with a large bypass ratio, and the technical content is extremely high. ”

Li Tianfeng said: "It's okay, according to what I said, arrange the production and manufacturing of ten turbofan engines, we will start to enter the production and manufacturing of small batches, and when the turbofan 16 engine completes the field flight test and obtains the production license, we will consider increasing the production and manufacturing batch again!" ”

There is also an increase in production and manufacturing batches!

Sun Kang glanced at Li Tianfeng in admiration, from Li Tianfeng's expression. Sun Kang also felt a strong sense of confidence, so Sun Kang said: "Tianfeng, then we will start small batch manufacturing." ”

Li Tianfeng nodded, and then reminded: "Brother-in-law, the two turbofan 16 engines we are going to hand over to COMAC are the fastest in terms of progress." ”

Sun Kang said: "I have already thought about this aspect, and I have already checked our inventory. The inventory of parts for the turbofan 16 engine was clarified, and priority was given to the production of the missing parts for the two turbofan 16 engines. ”

Because the difficulty of manufacturing parts is different. There are also certain discrepancies in the pass rate and scrap rate, some parts are more in quantity, some parts are less in quantity, some parts have been verified and tested for many times, and some parts may be done in one or two batches.

Thereupon. The parts in stock have a bit of a jagged feeling, some have more parts, enough to produce a few more turbofan 16 engines, some have few parts, and even the last production of two turbofan 16 engines are missing three parts.

See Sun Kang say this. Li Tianfeng nodded, thinking in his heart that his brother-in-law was really thoughtful about the problem, and the inventory of parts was clearly checked.

Li Tianfeng and Sun Kang, in the office, talked about the production and manufacturing of these two turbofan 16 engines, and also talked about the production and manufacturing of the ten turbofan 16 engines that will be put into production.

…………

COMAC, final assembly manufacturing center.

A C919 passenger aircraft has basically been fully completed, but on the wings, the engine position is empty, which is the temporary lack of turbofan 16 engine.

The C919 is the second domestic large passenger aircraft independently designed and developed by China after the Y-10.

The first "9" means eternity, and "19" represents China's first large passenger aircraft with a maximum passenger capacity of 190 seats.

C is the first letter of China, and it is also the first letter of COMAC, which may also mean that it is determined to enter the international large passenger aircraft market and form an ABC parallel pattern in the international wide-body large passenger aircraft manufacturing industry together with Airbus (Airbus) and Boeing (Boeing).

As early as June 2011, COMAC's C919 large passenger aircraft was unveiled at the 49th Paris Air Exhibition. In November 2012, it appeared at the Zhuhai Aerospace Exhibition, and won 15 Chinese and foreign users. Up to now, the number of orders has reached more than 300 aircraft.

The C919 was originally intended to use the LEAP-1C engine provided by CFM International, but with the advent of the Tianfeng Technology Turbofan 16 engine, it is not surprising that the C919 will be powered by the more powerful turbofan 16 engine.

Today, Ma Delong once again came to the assembly manufacturing center, and looked at this aircraft with satisfaction, which is the first prototype of the C919 aircraft, which not only completed the structural assembly stage, but also completed the avionics system, control system, and interior decoration.

Looking at this large plane, Maderon suddenly remembered a sentence, everything is ready, only the east wind is owed!

As a vice president of COMAC, Shen Wensheng accompanied Ma Delong, Shen Wensheng saw the first prototype, Shen Wensheng said happily: "Mr. Ma, it seems that it won't be long before our C919 aircraft will fly into the blue sky." ”

Ma Delong said: "This is a large aircraft project that gathers the strength of the whole country, and it must fly into the blue sky, which is the will of the country and the will of the people!" ”

Shen Wensheng said: "Our C919 large passenger aircraft, using advanced aerodynamic layout and a new generation of supercritical wings and other advanced aerodynamic design technology, to achieve better cruise aerodynamic efficiency than similar aircraft in service, and with the competition in the market ten years later has comparable cruising aerodynamic efficiency, I am very confident in the first flight." ”

Ma Delong said: "Our C919 passenger aircraft, its power is also very good, turbofan 16 engine comprehensive performance is super good, ultra-low fuel consumption, noise and emissions, Mr. Shen, our large passenger aircraft has such excellent power, you are indispensable!" ”

Hearing this, Shen Wensheng was happy in his heart, in the final analysis, if you chase the reason, the key is Shen Wensheng's credit at the beginning, at the beginning, if it wasn't for Shen Wensheng personally leading the team to Tianfeng Technology Company, perhaps, things would be a different situation.

The C919 airliner is still waiting for the turbofan 16 engine, and the improved Y-8, the Y-8K transport aircraft, has completed the assembly of the engine.

The two turbofan 16 engines have been smoothly installed on this Yun-8K transport aircraft, and many technicians and inspectors are undergoing final inspection and commissioning.

A few days later......

Under the traction of a tractor, the Yun-8K slowly walked out of the huge aircraft assembly plant and headed for the airport. The Y-8K will make a test flight two days later.

This is an airport belonging to a test flight institute, where many aircraft test flights are carried out, and after the Y-8K is towed to the airport, it is parked in a designated position.

Many people at the airport, including maintenance, ground staff, test pilots, etc., are very familiar with the Yun-8, and it just so happens that many people have seen the Yun-8K that was towed over.

"Wow, what kind of plane is that???"

"Yunba doesn't know either, Lao Zhang, you're not confused!"

"I'm confused, Lao Yuan, take a closer look, is this Yunba?"

Hearing this, Lao Yuan, who was preparing to conduct a routine inspection of a fighter plane, looked into the distance, at first glance, he really thought it was Yunba, but after a closer look, he soon found a lot of differences.

Two turbofan engines!

The fuselage also seems to be a bit wider and bigger!

"Lao Zhang, this is really not Yunba, Yunba is not like this, is this our newly developed new transport aircraft?"

"It's a newly developed transport plane, it's not like it at all, it's a Yunba, it doesn't seem to be it." Lao Zhang looked into the distance suspiciously.

Coincidentally, a test pilot passed by the two of them, and when he heard the words of the two, he couldn't help but smile, "You don't know this plane, this is the Yun-8K, a new type of transport aircraft, which has been improved and upgraded on the basis of the Y-8 aircraft." ”

"No wonder, it turned out to be Yun-8K, however, Yun-8 used to be four turboprop engines, but this time it was changed to two turbofan engines, this engine looks good, and that country imported it."

The test pilot smiled and said: "What is imported, this is a genuine domestic engine, turbofan 16 engine, have you heard of it!" ”

"Ahh This is the turbofan 16 engine, I have only heard of it before, I have never seen it, it turns out to be an engine like this, and it looks very good. ”

Like Lao Zhang and Lao Yuan, there are many people who see this Yun-8K being towed, and when they see this plane, those who know a little bit of it suddenly dance with their eyebrows, and they talk with relish, and there are many people who prick up their ears next to them.

Yun 8K stopped, stopped at the designated position, the tractor slowly left, seeing this, many people trotted all the way over, around this Yun 8K front, see with relish.

"It looks much better than the previous Yunhachi."

"Yes, at least it looks much prettier, two turbofan 16 engines, it's really amazing!"

"I heard that in two days, this plane will make its first flight."

"Ahh It's going to be the first flight! ”

When I heard that the first flight was about to take place, many people were immediately interested, and I thought in my heart, the first flight, I am really looking forward to it!

…………

Today's two watches, the second one will be sent.

In addition, to make an explanation, in reality, the first flight of the real C919 airliner is far from so fast, don't link it with reality, for the needs of the plot of this book, the C919 airliner will also make its first flight soon. (To be continued......)