(In the vast sea of people, it is a fate to meet, if you like it, please pay attention to Hua Yuhan)
Hua Yuhan | text
Continued from the previous text:
"We have always had some inertia in thinking, such as always feeling that in order to integrate with international standards, we must do what developed countries in Europe and the United States have, and we do not have the so-called gap, to fill the domestic gap." Make filling the gaps a goal to pursue. "Quote from Jack Ma.
This face is really crackling, when my last article was still about Qi Yuming in episode 37 of "Walking to the Wind".
In the next episode 38, Qi Yu slapped me hard like Jiang Tao, a painful slap.
As a preview of the finale, the first person in episode 38 can be described as both joy and sorrow.
Cheng Xiao finally accepted Gu Nanting, Song Song was going to marry Xia Solstice, and Li Yuheng seemed to have found the true son of fate Qiao Zhengyu.
Qi Yu's plan to "find a good man to marry" failed, and even turned over her past of framing Cheng Xiao.
As a result, he was not only complained by the wife of a good man, but also lost his job as a flight attendant because of several crimes and punishments.
The most surprising and gratifying thing is that "Walking to the Wind" not only made the domestic large aircraft "D919" officially appear in front of the audience.
I also moved such a glorious thing as the first flight from Shanghai to Fujian, and sure enough, bringing capital into the group has the right to speak.
In any case, "Walking to the Wind" can be regarded as keeping up with current events, in the context of the official flight of domestic large aircraft that is about to be seen today.
Such an ending and such a plot undoubtedly ensure that this drama can meet the audience on time and on time.
The most surprising thing is that when Cheng Xiao and Gu Nanting were driving "D919".
Through Cheng Xiao's question and Gu Nanting's answer, the topic of "domestic and non-domestic" has always been a stimulant of public opinion.
Although Gu Nanting did not answer this question positively in the end, he revealed to us through Ni Zhan's news that it may be really possible:
Within three years, every new "D919" can choose to have two domestic flight engines.
Before cheering for such exciting news, perhaps we should first make a real answer to the questions raised by Cheng Xiao.
Let's take a look at the degree of localization of "D919", and how much gold content Gu Nanting's "integration is great" has.
To this end, I would like to make a systematic explanation and explanation from 8 major aspects other than the engine.
1. Engine pod and thrust reverser
The two components are produced by Nexcelle, a joint venture between GE Aviation and Safran Nacelles.
Nyser is headquartered in Cincinnati, Ohio, USA, and is also one of the key players in the engine used in the D919.
2. Aircraft tires
The tires for the D919 are Michelin's Air X radial tires.
A specialist tire manufacturer based in Clermont-Ferrand, France, he is arguably the largest tire manufacturer in the world, although his Michelin Guide may be better known.
3. Integrated services of core avionics system, display system, airborne maintenance system and avionics system
This series of systems is provided by General Electric Aviation.
It is a subsidiary of General Electric and is headquartered in Avondale, Ohio.
GE Aviation is arguably the world's largest manufacturer of aircraft engines, and the engine on the D919 was produced by him in a joint venture with France's Safran Aero Engine.
4. Hydraulic system, main flight controller actuation system, fuel system and fuel tank inerting system
This series of systems is provided by Parker Hannifin Corporation.
It is a company specializing in motion and control technology and is headquartered in Greater Cleveland, Ohio, USA.
As one of the world's largest motion control technology companies, he excels in aerospace, climate control, mechatronics, filtration, fluid and gas handling, hydraulics, pneumatics, process control, and sealing and shielding.
(This article is an original article of "Hua Yuhan", and the non-"Hua Yuhan" account is all plagiarism and handling!) ）
5. Flight control system, wheel and brake system, auxiliary power unit and navigation system
This series of systems is provided by Honeywell International, Inc.
It is a consumer electronics manufacturing, engineering services and aerospace systems company headquartered in Charlotte, North Carolina, USA.
His specialty materials business dates back to the 1870s, and although the company is not very large and in good condition, its patents and technology cannot be underestimated.
6. Power supply system
This is a special part, supported and manufactured by Hansheng with R&D support.
It is a subsidiary of United Technologies and is headquartered in Windsor Rocks, Connecticut, USA.
The modern Hansheng company was formed in 1999 by the merger of Hansheng and Sunderstrand, which dates back to 1910 and 1905.
7. Integrated monitoring system, communication and navigation system and full-motion simulator
This series of systems is jointly developed and produced by Rockwell Collins and Home Domestic Company.
Rockwell Collins began as a radio services company and today provides avionics and information systems services.
Today, the company has changed its name to Collins Aerospace and is headquartered in Cedar Rapids, Iowa.
8. High lift system
This part is developed and manufactured by Moog AG.
It is a company specializing in electrical, electro-hydraulic and hydraulic motion and control systems, and Moog Corporation is headquartered in Elma, New York, USA.
The company has technology that can be applied to almost all industries, including aerospace, defense, industrial and medical devices.
Finally, there is the most important heart aircraft engine of the "D919".
Its official name or model name is "LEAP-1C", which is an engine customized by CFM International specifically for the "D919".
However, from the perspective of main model and manufacturing technology, "LEAP-1C" is a member of the LEAP series of engines, and it is the same technology and manufacturing process as the engines used by Airbus A320neo and Boeing 737MAX.
Although CFM International is headquartered in Paris, France, it is a 50% joint venture between General Electric Aviation of the United States and Safran of France.
From the source and origin of the above series of systems, it can be seen that although this is a large domestic aircraft, many of his internal systems and components do rely on global procurement to complete.
Of course, this method of production, design and assembly is also a common way for commercial aircraft at this stage.
Because commercial aircraft, such high-tech mass-produced commercial products, except for those domestic and non-domestic products that are noisy all day.
What is more important is how to integrate these products belonging to different companies and different design concepts organically and safely.
Just in this aspect, as Gu Nanting said, it is a very difficult and remarkable thing.
Of course, our domestic large aircraft are not all assembled by global procurement.
For example, the overall design and manufacturing plan is completely in our own hands.
There are also pneumatic shape designs and related tests, which are also done by ourselves.
In addition, in the design and manufacture of aircraft airframes, we also complete them entirely by ourselves.
At the same time, although many different vendors' systems are used, they are fully managed by ourselves.
Just like the domestic engine that came out three years later in Gu Nanting's mouth.
When these systems are applied to the new "D919", I believe that in the near future, we will gradually realize the replacement and new design of these systems.
By that time, domestic commercial large aircraft with truly 100% independent intellectual property rights will no longer be a slogan.
By then, we will have more civil aviation people like Cheng Xiao, Gu Nanting, Ni Zhan, and Xia Solstice.
The above is my understanding and perception of episode 38 of "Walking to the Wind", more wonderful analysis, see you next time!
(After reading it, remember to pay attention to "Hua Yuhan" Oh, the picture comes from the Internet)