Chapter 1128 Airbus, aiming for the future (xdm asking for monthly tickets)
The two test pilots in the cockpit have been waiting for a long time with the car hot.
After receiving the takeoff command, the captain immediately released the brake lever.
In the cabin, Jin Xu only felt a slight vibration, and then the plane began to accelerate.
Due to its relatively low thrust-to-weight ratio, the A340 has long been criticized in terms of take-off distance and climb speed.
Fortunately, this aircraft is just a test platform, and its dead weight is dozens of tons lighter than that of passenger transport, so the experience is similar to that of the 737 and A320 that we often fly on.
In fact, if the runway length limit is not considered, only one Trent 900 (equivalent to 2.5 CFM56-5C) is required to be fully turned on to propel this 200-ton aircraft to accelerate and take off.
Therefore, the main functions of the other three engines are actually to protect the bottom and trim.
After all, in the test, there is also a project to simulate a mid-air parking and then let the engine complete self-starting.
But we certainly can’t really make the plane unpowered.
Throughout the takeoff process, Jin Xu was staring at a screen not far away.
What is shown above is the speed and load of the rotors of the No. 2 engine at all stages, including the fan.
Until the climb reaches 8,500 meters and levels off, the entire curve appears to be quite smooth.
There were only two obvious fluctuations.
At the moment when the plane raised its head, and when it climbed to about 2,500 meters, it encountered a burst of violent irregular airflow——
Considering the severity of the air intake distortion, the working stability of the Trent 900 is obviously relatively optimistic.
As for more detailed data, we have to wait until it is implemented before analyzing it.
"Slowly rise to 10,500 meters, adjust the rotation speed to 40%, and prepare to connect the RS325 and HC402 probes..."
The test leader sitting not far away ordered in an orderly manner.
Hearing this, Jin Xu quickly turned his attention to the other party, and at the same time took out a notebook from his pocket——
After helping Rolls-Royce find out the cause of the accident, the Aerodynamics Group's position in the entire project also increased.
Otherwise, how could a second-tier supplier have the opportunity to follow us for aerial testing?
Originally, he even wanted to bring a camera and tape recorder.
But this is indeed a bit too outrageous.
In the end, the two parties reached a compromise plan, allowing him to move freely without affecting normal test work and flight safety, and use paper and pen to record.
The RS325 and HC402 are carbon oxide and nitrogen oxide detection devices installed under the wings respectively, used to test the pollutant emissions of the engine at different speeds.
This is also the top priority for Jin Xu to understand during this trip.
Chang Haonan plans to focus on ultra-low fuel consumption and ultra-low emissions to enter the international market for the AE1500, but China did not actually have a particularly complete aviation emission test standard before.
Since this model is preparing to obtain EASA certification in the future, it is obviously a good choice to take this opportunity to refer to the process of Trent 900...
...
At this time, the aircraft had climbed to an altitude of nearly 10,000 meters. It was impossible to directly see the flight conditions from the ground, so Champine and Bodi found a place with a bright sun and waited for the first flight test to be completed. .
Not long after he relaxed, the former saw a somewhat familiar face walking quickly in his direction.
"Hello, Director Champine!"
The person came up to him and said hello.
Until this moment, Champine remembered that before the No. 341 test platform took off, it seemed that a Falcon 2000 business jet had landed.
But at that time, his focus was all on the engine, and he didn't care about the plane.
Now that I think about it, it should be a charter flight from Dassault Group.
"Dr. Casore, long time no see."
Champine also shook hands with the other party warmly.
The aviation industry group in Toulouse may seem quite big, but in fact most places are airports.
The area really used for office and scientific research is not very big.
Both of them are executives of France's core aviation companies, and they can be said to have met each other without looking up.
We have known each other many years ago.
As the management of Rolls-Royce, Bodie actually doesn’t have much dealings with Dassault, which mainly deals in fighter jets and business jets.
For Kasore, at most I have heard the name, but certainly not as acquaintance.
So he originally wanted to find a reason to avoid it, and he could also take advantage of this time to take a nap.
However, just as he turned around to leave, he heard Champine continue:
"The last time I saw you was before Christmas last year...listen "You said you went on a business trip to China?"
For Casore, the cooperation between Dassault and China was not a secret at all, so he answered almost without thinking:
< br>"Yes, there is a cooperation project there, so I have been staying there until now...I came back because of an urgent mission."
But the speaker has no intention, and the listener has the intention. Bodi, who was still a little tired, stopped feeling sleepy in an instant and stopped immediately.
He is now very curious about all the companies that cooperate with Huaxia.
Of course, we are not the same company... we are not even from the same country, so Bodi will not come up and ask about the details of cooperation.
I just took advantage of an opportunity to introduce myself:
"Hello, I'm Tim Purdy, deputy director of projects at Rolls-Royce. Nice to meet you."
"..."
A very normal topic Cut in, so Kasore didn't take it too seriously and just continued chatting with the two people about harmless topics.
But Bodi came with a purpose in mind, so naturally he couldn't stay here all the time doing oral gymnastics with him.
So after some pleasantries, he had no choice but to choose a slightly more radical approach:
"Dr. Casore, I think I just heard that you just came back from China?"
The latter has a background in military aircraft, so that's how sensitive he is.
I instantly realized that the other party’s topic change was a bit abrupt, and there must be a pitfall behind it.
Dassault has a cooperative relationship with China, which is almost a public matter.
But the specific details of cooperation cannot be disclosed casually.
So, he nodded:
"Yes, go over there and purchase some secondary aviation materials... You know, these things are not very demanding, and there is a cost advantage there."
< br>Hearing that the other party was also looking for Chinese people as secondary suppliers, Bodi was slightly relieved:
"Indeed..."
He nodded and continued:
"To be honest, they have developed rapidly in recent years, but it is a pity that there is no market suitable for us Rolls-Royce..."
As the deputy director of R&D of the Trent 900, Bodi said nothing The market, of course, refers to the fact that there is no aircraft in China that uses Rolls-Royce type engines.
Actually, this was completely unintentional and just ended the topic about China.
But Champine next to him obviously got the wrong idea. After hearing these words, he lowered his head, looking thoughtful.
Until Bodie left, he was still a little bit distracted.
"Tim."
After a period of silence, Champine suddenly raised his head and looked at Bodie:
"I wonder if you have any plans to develop a thrust system at 12 -A new engine of about 14 tons, suitable for short- and medium-range passenger aircraft?”
This sudden question made the latter a little confused. After thinking about it for a while, he asked:
“Are you? Say...for passenger aircraft like A320 and 737? ”
"Yes."
Podi's expression became even more confused:
"But... we already have the V2500 series?"
Strictly speaking, the V2500 engine is A model developed and produced by International Aero Engines (IAE).
Similar to the Engine Alliance Company that developed the GP7200, it is also for this plate of vinegar-wrapped dumplings.
The company is a joint venture between Pratt & Whitney, Rolls-Royce, MTU, Fiat and Japan Aerospace Engineering Corporation. Its only product is the V2500.
Although this means that many companies will take a share of the pie, judging from Rolls-Royce's business distribution, it is obviously impossible to independently develop a product with duplicate positioning.
But Champine shook his head mysteriously, leaned closer and lowered his voice:
“We are planning a new generation of A320 passenger aircraft for 2010 and beyond. The goal is to reduce fuel consumption by 15% and carbon and nitrogen oxide emissions by more than 20%... The V2500 is based on thirty years ago, and it is impossible to meet the requirements anyway, so it must require new power..."
Podi's eyes widened suddenly.
This is incredible news.
The 80-ton mainline passenger aircraft is conservatively estimated to be a trillion-dollar market.
Any piece of cake here can affect the pattern of the world aviation industry.
While the V2500 is determined to be eliminated early, Rolls-Royce has no experience in developing engines of the same level.
If we don’t get the news today, we will definitely fall behind the two main competitors in the future:
"I'm afraid I have to report this to the board of directors after I go back..."
Champi nodded in a subtle way, and then asked:
"Since I can Telling you this means that the demonstration stage is almost over, so you must act quickly... If it doesn't work, you can also find other companies to cooperate in research and development."
But Bodi on the other side was a little worried:< br>
“GE has the most experience in this level of engines, and coupled with the unhappiness caused during the previous cooperation with Snecma, there is a high probability that it will not accept any joint research and development plans... and Pratt & Whitney I have also made huge profits from the research and development of V2500, and I have long had the idea of going it alone..."
"It depends on how you decide..."
After all, Champine is not from Luoluo. For this reason, he has done his best:
"In short, If you miss this time, you may not have the opportunity to re-enter this level of market in the next 20 years..."
(End of Chapter)