Chapter 576: Supersonic commercial airliner

Guan Yuqiang handed Wang Bu'an a business card. Mobile terminal
Suspiciously took it. I discovered that the name of the face actually belongs to him.
The following title is amazing-General Technical Advisor of China Aerospace and Aviation Industry Department (at the department level).
"what is this?"
"The latest part-time job."
"How many part-time jobs do I have now?"
"not much."
"How much is it?"
"Eighty seven."
"Sure enough.
"It's really not much."
Wang Buan curled his lips quietly.
Yes, not much. There are less than a hundred. There is not much Heshen of the past.
The issue is……
There is a bracket after it.
Hall-level...
This is a bit of a pull.
What is the concept of the main hall level? That's a great official.
Wang Buyan's own Laozi was only at the full-time level before he resigned. Then there are the deputy department level, the main department level, and the deputy department level... and then it is the main hall level!
How old is he now? Hall-level with a bracket? Isn't that inviting envy and hatred?
Don’t know who made the idea? It's totally hatred!
If it is made public, it will definitely arouse the national sentiment.
At that time, it is estimated that the whole world is speculating about which senior official surnamed Wang is Wang Bu'an's Laozi.
One is not good, maybe someone will throw an egg at him and end up like Bao Longxing. Maybe even worse.
Also, this position seems to be wrong!
There are many part-time jobs below.
One is the technical consultant for the commercial large aircraft project.
Why does the business of COMAC have something to do with him again?
As stated at the beginning, Tyrannosaurus Rex Industry is only responsible for providing engines. Not responsible for any other projects.
With COMAC's technical strength, Wang Bu'an does not need further intervention!
Just fix the engine.
The W270 engine serves COMAC.
Large transport aircraft, large bombers, large commercial aircraft...all are used. It is perfectly compatible.
Generally speaking, there is a big difference between commercial engines and military engines.
Commercial engines particularly emphasize reliability, stability, and economy. Emphasize the longest possible life.
In a word, it is to save energy and money.
Otherwise, the airline will lose money.
The military engine mainly emphasizes explosive power, maximum thrust and so on. Regarding economy and longevity, it can be temporarily put into the second consideration.
Lao Maozi’s military engine is the most typical example. In the past, life and economy were almost ignored. Pursue performance blindly.
MiG-25 and MiG-31 are the outstanding representatives of this kind of thinking.
For performance, everything else can be ignored.
"Who gave this to me?" Wang Bu'an asked.
"It's Minister Pei of the Ministry of Aerospace Industry." Guan Yuqiang replied in a low voice.
"Oh." Wang Bu'an nodded.
Yes, the background is very big.
Ministry of Aerospace Industry.
In charge of the production of all aircraft.
Whether it is commercial or civilian. All belong to its jurisdiction.
What Chengfei, Shenfei, Xifei, Nanfei, Hafei, Guifei, COMAC... etc. are all its subordinate industries.
"Commander, what am I going to catch first now?" Wang Bu'an was confused.
"The top priority now is to ask you to help deal with the domestic large aircraft project." Cheng Laifeng said.
"Isn't there already a C919 project team?"
"Do you think we will meet the regional aircraft with only more than 100 seats?"
"Ok!"
Wang Bu'an nodded.
Of course it's impossible!
The domestically produced large aircraft is the most important industrial symbol of a country.
In today's world, there are only two largest passenger aircraft manufacturers. One is Boeing. One is Airbus. They carve up the entire market.
The vast majority of airliners in the world are either Boeing series or Airbus series.
Others are all in the nature of petty troubles, and are not allowed on the table.
Including Polar Bear's own Il series.
Every year, Huaxia purchases a large number of commercial airliners from foreign countries.
Sometimes, an order is tens of billions of dollars. In one year, it may exceed 100 billion US dollars.
Obviously, this is a big expense.
Now, we have to make this money ourselves.
This matter has nothing to do with Cheng Laifeng.
However, the Ministry of Aerospace Industry made arrangements, and Wang Bu'an was temporarily in their charge.
According to the previous agreement, after Wang Buyan returned to China, the first thing to deal with was the two project teams. One is the C929 project team. One is the C939 project team.
"C929, a commercial airliner project. Two hundred to three hundred."
"C939, a large commercial airliner project. Three hundred to four hundred seats."
"In addition, there is a C969 project team that has not yet started. The main focus is 600-seat super-large passenger aircraft."
Guan Yuqiang handed Wang Bu'an detailed information.
These two projects are directly related to White Feather Whale Technology.
COMAC is responsible for the main research and development.
But the final decision was White Whale Technology.
Or, to be more precise, it needs Wang Bu'an to sign and confirm. Otherwise, it cannot pass.
Frankly speaking, this rule is very overbearing. It is very unfair to COMAC. Why do others sweat and work hard, and finally have to be left to others to decide their own destiny?
Wang Buyan seems to have felt the hatred from all employees of COMAC.
He accepts such tasks every time.
The professional backer is definitely not a lie.
"Let's take a look at the modification of the C919 first." Wang Bu said calmly.
"Okay. This is all the information." Guan Yuqiang took out a lot of pieces.
Wang Bu'an began to study the data.
Now that I have taken over, I have to make a look.
In terms of overall performance, it is temporarily impossible to surpass Airbus and Boeing.
Wang Buyan has always been very self-aware. Don't dare to speak wild words.
How big is the head, and how big is the cap.
How big your mouth is and how much you eat.
After all, the salt that others have eaten requires more rice than he has eaten.
It is unrealistic to want to surpass Britain and catch up with the United States in a very short time.
However, it is still possible to make something unique in the engine and seize market segments.
According to data, the weakest point of the C919 domestically produced large aircraft is still the engine. We do not have domestically produced engines to use. Must be imported.
(Well, the independent intellectual property rights of domestically-produced large aircraft promoted to the outside world...Don't care about these details...)
The twin-engine turbofan CFM-LEAP-X1C engine equipped with C919 is a large jet airliner engine developed by CFM International, a joint venture between General Electric and French SNECMA (Safran Group). This engine is a modified product for a generation of aircraft, with better fuel economy and lower carbon dioxide emissions.
At present, my country has become the main market of CFM International. More than 3000 CFM engines in the entire China market are in use or are in reserve orders.
In fact, in addition to the imported CFM engine, there are two domestic engines as substitutes.
One is Changjiang 1000 and the other is Changjiang 2000, but there is no data.
"The other party has always refused to provide it." Guan Yuqiang said.
"Don't rush." ​​Wang Bu'an reminded.
"why?"
"We have offended people now."
"why?"
"We have robbed the fruits of other people's labor!"
"Oh."
Guan Yuqiang actually didn't understand.
What is meant by grabbing the fruits of other people's labor?
Wang Buan obviously didn't do anything! These things were stuffed to him by others.
To be honest, Guan Yuqiang still sympathized with Wang Bu'an very much. Almost all rushed to be the most industrious worker bee. Just getting off the plane and still at the airport, I have to start busy.
That's right, Wang Bu'an is still at the airport. Did not leave at all. It is estimated that for some time in the future, he will have to live here.
Cheng Kailong specially selected a building here as Wang Bu'an's office.
This is a military restricted zone, and security is relatively guaranteed.
During the entire air show, Wang Bu'an will live here.
If there are any technical problems during the air show, the first one is to ask Wang Bu'an to solve it.
In order to allow Wang Bu'an to concentrate on his work, the others were invited away.
Including Huang Ruoxi, Pei Lan, and Zhou Xiaoqi, they were all arranged to live in other places.
Now, C919 is ready to install two W125 engines.
Two W125 engines can provide approximately 120 tons of thrust.
For commercial aircraft, this thrust is already very good.
Its maximum take-off weight is about 73 tons.
The maximum landing weight is about 67 tons.
The thrust of the two W125 engines is enough to make it soar into the sky.
C919 large aircraft, in the passenger aircraft team, can only be said to be a regional passenger aircraft. The range is about 5500 kilometers.
Its target is Airbus's A320, or Boeing 737 regional airliner.
W125 is actually a military engine.
It is not impossible to install on a commercial airliner. Same compatible.
But ~EbookFREE.me~ If it is from a professional point of view, it is better to develop a new model engine.
According to the first draft of the design, after using the new engine, the model of C919 will become C929. This is the origin of the C929 project.
After installing a new engine, the layout of C929 is very different from C919.
No fuel tank is required. No need for a huge engine.
No need to consider the voyage.
No need to consider fuel costs.
The weight does not need to be cut particularly harshly.
Its body can become more spacious and can add more seats.
In the previous standard setting, the number of seats was between 158-168. But now, it can be increased to around 185-195 seats. The seats have also become spacious. Storage space is also more. There are more and more electromechanical equipment and various service facilities that can be installed. You can even consider installing a massage seat. I don't care about the weight anyway.
In general, it is the original slender streamline, which has become thick and fat, and its appearance has indeed decreased.
However, from an economic point of view, it has turned upside down.
The standard C919 flight speed is between 0.78-0.8 Mach.
The C929 with the modified W125 engine can fly at more than Mach 1.2.
In the event of danger, its limit temperature can even exceed Mach 1.5, which is almost twice the original C919 standard speed.
In other words, it will become a supersonic commercial airliner. It will fly at supersonic speeds.
This is why Wang Bu'an was arrested to take charge of this project.
Supersonic commercial airliner! Must be cautious!
This book comes from
This book is from https://