Chapter 1077 The goal is global airworthiness
Almost at the same time, Brown and McCann were worried about the F136 engine and even the entire natural cycle technology route.
China, Haojing.
Although it is almost nightfall, the headquarters building of Haofa Group is still brightly lit.
After finalizing several large cooperation orders with Europe, Haofa, or the entire aerospace power group, has finally completed all preparations before the establishment of the Turbofan 20 project.
Today is the day when project approval officially begins——
The complete project approval requires the inspection of a large number of technical and feasibility study documents. It is actually a quite boring job and cannot be completed in three or two days. .
Therefore, what is going on now is just a launching ceremony, with Chang Haonan briefly introducing the project situation and the overall technical plan.
Of course, the Turbofan 20 is the model that Chang Haonan personally took charge of after two years.
So it is not difficult to predict that the specifications will definitely be full.
At least it will be much higher than the QC300 a year ago.
But foresight is foresight.
When Chang Haonan really saw the list of experts and leaders attending today, he was still a little surprised.
Not to mention researchers related to aerodynamics, engineering control and materials science.
At the Industrial and Construction Committee level, Li Zhongyi, who had just officially taken office, attended in person.
In addition, higher-level leaders in charge of the development of high-tech industries were present.
Although the other party said that he would only listen and not express any opinions, he asked Chang Haonan and others not to put too much pressure on them.
But coming here to show up at this juncture itself represents the attention from the top.
Or support.
Correspondingly, the General Armament Department, which had more dealings with Chang Haonan in the past, only sent a delegation of average level and size this time.
It is not difficult to see that the military attributes of the Turbofan 20 are deliberately weakened.
But this is also a real hardship for the comrades in charge of arranging conference affairs.
When Chang Haonan checked the final plan the day before, he found that even several academicians were not assigned a seat next to the conference table...
In the list, Chang Haonan also saw A name came up that was completely unexpected.
His mentor, Du Yishan.
Although academicians, especially senior academicians, mostly retire unless they have physical reasons.
But maybe it’s because he did bring out a more up-to-date close disciple. In short, Du Yishan did live in seclusion after leaving the front line.
I rarely participate in such official level activities anymore.
Even Chang Haonan, Liu Hongbo and others are often turned down when requesting to visit them unless it is a holiday.
Now that I appear in Haojing, I am afraid that I was specially invited by my superiors.
"Teacher."
After welcoming the big boss, Chang Haonan looked around at the door for a long time before waiting for Du Yishan, who was surrounded by several staff members.
Then he quickly stepped forward to help the other person sit down.
But the latter raised his hand and refused:
"Okay, okay, I'm not too old to walk..."
As he spoke, he even sped up his pace.
Actually, what Du Yishan said was a bit modest -
After retiring, he looked much younger than before.
It can only be said that even at the level of an academician, the work is indeed quite torturous...
After some pleasantries with acquaintances present, Du Yishan finally sat in the seat assigned to him. superior.
Chang Haonan was also able to use the excuse of "accompanying the teacher" to take a break from his busy schedule and relax for a while.
"Teacher, to be honest, I didn't expect you to come out in person."
While placing the cup with tea in front of Du Yishan, he said with some emotion:
“Although it’s only been four years since I graduated, I still feel like I haven’t seen you in a venue like this for a long time.” You should have seen the list. I am actually not in the project review team. I am only present as an invited expert. In fact, I shouldn’t sit in such a front position..."
Du Yishan took a sip of water leisurely, and then said in a half-joking tone:
"I guess the higher-ups can't think of anyone else who can review your project... Back then, When the fan 10 project was established, your boy turned it into a live lecture."
"Before setting off from Beijing this time, Lao Ding also told me that he wanted to know what else the turbofan 20 could do. Here are some tricks..."
Chang Haonan was a little uncomfortable hearing Ding Gaoheng's name suddenly in this context.
But after thinking about it, it makes sense.
After handing over the director position to Li Zhongyi, Ding Gaoheng took up a casual position and waited for his retirement in two years.
Although I am an academician-level expert, I can find reasons to come if I really want to participate.
But this is after all a critical and sensitive stage of organizational reorganization, and Turbofan 20 is the first key project handled by the new unit of the Industrial and Construction Committee after its establishment. If he, the "old leader" who had just resigned, appeared at the same time as Li Zhongyi, there is no guarantee that he would not be overthought by interested people.
However, Chang Haonan still gave up:
"You should know later..."
...
At seven o'clock that night, the launching ceremony officially began.
With Chang Haonan's current status in the world, there is no need to be overly polite.
Therefore, he just gave a brief welcome speech, and then quickly got to the point:
"Everyone, the turbofan 10 has been put into mass production for more than a year since it completed the production and finalization evaluation at the beginning of last year. Including the previous small batch trial production, a total of 127 units have been put into use, with a safe flight time of more than 100,000 hours, without causing any Third-class or above flight accidents have been well received by Party A and customers..."
"At the same time, our group has also cooperated with foreign companies in the past two years to successfully develop a medium bypass ratio The SeA650 turbofan engine has been equipped on the Falcon 8Z business jet for test flights, and is responsible for part of the production business of Rolls-Royce's Trent 900 engine turbine components and accessories, and has accumulated a certain amount of experience in civil engines. Experience..."
"In addition, it is worth mentioning that not long ago, we also helped to identify the cause of an accident related to the prospects of the Trent 900 project. Not only did we come into contact with many cutting-edge people in the process Design thinking has also further enhanced my country’s voice in the international aviation manufacturing industry.”
“…”
These words are not only a background introduction, but also an introduction to the establishment of the Aviation Power Group. Summary of past work.
Although everyone here is aware of and even participated in everything.
But when these results were summarized by Chang Haonan and listed together on the PPT, it still brought an immeasurable shock——
Unknowingly, China has been able to In some areas, it is on par with international aviation giants like Rolls-Royce.
So much so, when he finished speaking a long paragraph and paused to take a sip of water, the gasps of everyone could be heard quietly in the huge conference room.
It wasn't until Chang Haonan opened the lid of the cup and there was a clicking sound that the first person reacted and started applauding.
Then, it was like a switch was turned on.
Thundering applause resounded throughout the entire venue in an instant.
In the end, Chang Haonan had to raise his hand and press it down to cool down the atmosphere in the entire venue:
“Under this background, we believe that we are completely qualified. Relying on the relatively mature core engine of the Turbofan 10, we will develop a large bypass ratio turbofan engine with a thrust between 12-14 tons, mainly used for passenger aircraft and transport aircraft. It is temporarily named AE1500 at the group level..."
< br>Here, he specifically used the name he had discussed with Lan Xinzhi before.
Mainly for rigor.
In fact, names such as turbofan XX and turboshaft XX should be given to the equipment by the user, that is, the army.
However, because for a long time, China Aviation Manufacturing has been specialized in aviation, so these names have gradually been accepted by manufacturers.
Later, for models such as the Turbofan 10 and the Turbojet 14, even at the beginning of the project, the names were decided for the users.
Both parties don’t think there is any problem.
But with the development of the industry, it has become clear that China Aviation Development’s users are no longer only the military.
When establishing a project, there should also be a commercial model name assigned by the manufacturer.
As for the Turbofan 20, it should be formally determined after the aviation force passes the acceptance test.
Of course, in today's meeting, these parts can only be regarded as details.
Because when Chang Haonan announced the name of AE1500, the goal he set for this model was also projected on the curtain in front.
Suddenly there was a burst of exclamation in the scene.
The top one is naturally thrust.
The sea level thrust of the basic model is 13500kgf, which can be adjusted from 11500kgf to 14500kgf according to different sub-models.
For the target installation target, it is considered to be a satisfactory level.
However, the focus of large bypass ratio turbofans is not originally here.
What really exceeded the expectations of all the big guys was another form further down.
“Considering the difficulty of research and development, testing, mass production, and gaining market recognition, AE1500 should be benchmarked against similar products of the 2010s in advance to ensure that it does not fall behind in future competition.”
“Therefore, compared with the current benchmark model CFM56-7B engine, the AE1500 plans to reduce fuel consumption during cruising by 10%, reduce noise by 6dB, and reduce carbon dioxide and nitrogen oxide emissions by 25% and 40% respectively... …”
“…”
What is more surprising than the data itself is the focus of this model.
Seemingly seeing everyone’s confusion, Chang Haonan explained:
“As a model for the commercial market, in addition to the hard indicators we traditionally focus on, factors at the international aviation policy level must also be taken into consideration. "
"Since the end of the last century, Europe and the United States have gradually tightened regulations in the field of aircraft emissions. This is of course for environmental protection, but on the other hand, it is also for latecomers like us. Set up additional obstacles..."
When he said this, Du Yishan in the audience suddenly guessed his disciple's goal this time -
To win the global victory airworthiness certification!
(End of this chapter)