Chapter 1065: Mr. Chang has figured everything out
After receiving the turbine blades delivered by China, Wilson began to organize manpower to prepare for accident simulation restoration.
Of course, it is impossible to go to the test bed and blow up another Trent 900.
Rolls-Royce, even though it has a big business, cannot withstand this kind of gameplay.
But it is carried out in a specialized laboratory.
The scope of the simulation is also limited to the timing, trajectory and destructive force of the blade itself being thrown out after the turbine over-rotates.
It is certainly impossible to directly find out the cause of the accident by this method, but it can at least prove whether the core machine of the Trent 900 itself has a fatal flaw.
In fact, this is exactly the core purpose of Wilson, or in other words, project director Panos Watson——
For Rolls-Royce, the top priority is to provide Trent 900 with Buy enough time and calm public opinion.
As long as the core aircraft is proven to be fine, Watson dares to let Bodi and Airbus restart negotiations.
By then, all rumors will naturally subside.
As for the accident itself...
There are still more than two years between now and the planned first flight of the A380.
Even in-flight testing using the A340 platform is still a year away.
As long as the problem does not involve the core machine, other problems can be corrected no matter what... right?
In short, even if it is not corrected, the problem can be delayed for one to two years.
It’s all worth it.
It is precisely because of this that starting from the day of the next day, Ren Bingda keenly discovered that the number of people working with them in the assembly workshop had actually decreased compared with that in the early morning.
More importantly, Wilson himself, who had previously vowed to "come to me if you have anything to do", is missing.
Although this is objectively more conducive to the next operation of the three people, he still cannot accept the feeling of being kept in the dark despite having multiple tasks.
The fundamental purpose of the group sending them here was not to provide Luo Luo with voluntary labor to solve the problem.
But take this opportunity to improve China's position in the international aviation industry.
Fortunately, for Ren Bingda’s generation of Chinese technicians, being “left aside by foreigners” is a perfectly normal experience.
So he skillfully took advantage of the opportunity of asking someone to help compare the production documents, and made some insinuations to several British engineers around him.
It was then that I was shocked to learn that the accident simulation restoration had begun.
One of the young people who came with him immediately became angry after hearing about this incident and said that he must seek an explanation from Wilson.
However, he was stopped by Ren Bingda.
"Mr. Ren..."
His eyes were full of confusion.
“The King of Hell is easy to meet, but the devil is difficult to deal with. This Wilson is intentional, making us frequently stop what we are doing to look for him, and we are unable to devote ourselves to work.”
As Ren Bingda explained, he turned around and returned to the pile of broken parts.
“We can’t just wait and see, right?”
The other party followed behind and asked:
“And I think that this accident simulation is very useful for us to understand. Rolls-Royce’s engine design and testing process should be helpful.”
At this time, another person who was calmer had already realized the new problem:
"But Mr. Ren, there are only three of us in total... Considering that we take turns to take breaks, there are only two working at the same time most of the time. If another one is assigned to participate in the accident simulation, wouldn't it mean that only one person is left to complete the task? The task assigned by Mr. Chang?”
For a while, the situation seemed to be at a deadlock.
Faced with this situation, Ren Bingda showed a smile that showed he was in control:
“Of course it’s impossible to just wait...”
“We have already solved the situation here. I have a general understanding. Bodi will be here in a while. We have another meeting with Panos Watson, the general manager of the Trent 900 project, before noon. Then we will directly connect with him and sort out these things. Just make it clear..."
Only then did the other two people react.
Wilson is not the easy-to-find King of Hell that Ren Bingda said.
But a difficult kid.
Ren Bingda took out a notebook from his pocket and slowly began to record the damage of the parts corresponding to each number. While writing, he continued:
"As for the manpower issue, …We don’t need to participate in their entire restoration experiment, as long as we can participate in the technical meeting after the experiment, which can take up to about two hours a day, and we can participate if we spare a little time.”
"Of course, when we meet with Watson later, we still have to ask for full participation, so as to facilitate bargaining later..."
...
Sure enough, everything was as he estimated.
As project directors, Watson and Purdy were unable to go back on their word regardless of their image like Wilson did.
After all, the agreement reached earlier clearly stated that the Chinese delegation was allowed to participate in the investigation throughout the entire process.
If the latter is excluded from key aspects such as accident simulation and restoration, then in the end there will be no way to even sign the investigation report.
However, Wilson, who was called to the conference room temporarily, was obviously well prepared and also moved out the contents of the agreement.
It means that the accident restoration workflow involves the core parameters of the Trent 900 and the technical secrets of their test team, which is a part of the agreement that can be exempted.
After a stalemate, both parties had no choice but to take a step back.
China no longer insists on participating in the entire accident restoration process, but the final results report of the restoration and regularly held technical meetings must be conducted with the presence of at least one person from China.
In addition, Ren Bingda and the others also obtained permission to directly access the external accessories of the turbine and its production materials.
Anyway, for Rolls-Royce, since the core turbine part is produced in China, there seems to be no need to cover up the things outside the casing. However, for the targeted Chinese investigation team, this seemingly subtle change can have a qualitative impact on work efficiency.
In the half day before this, every time they found a suspicious part, they had to find the British engineer nearby to compare it with the production documents.
But others also have tasks, and are not specifically responsible for this.
I can only help in my free time.
Now that you can check it by yourself, it is equivalent to directly skipping the most time-consuming process in the middle.
Therefore, after taking turns to rest that afternoon, the progress of the remaining two people was an order of magnitude higher than before.
So much so that even Ren Bingda himself didn’t expect it.
Before Wilson even completed the first stage of accident restoration, they found what they were looking for...
On the morning of the third day, Ren Bingda, who was checking the turbine attachment group as usual, suddenly heard an excited but obviously deliberately suppressed voice:
“Mr. Ren, I seem to have found it!”
“ Huh? "
Ren Bingda stopped what he was doing and raised his head.
However, he was not as excited as the other party
First, this work is really boring and monotonous. After working for three consecutive days except for eating and sleeping, even Ren Bingda felt a little numb.
The second is that he himself has discovered highly suspicious parts several times before. After comparing them excitedly, he found that either they were originally designed this way, or they were obviously caused by secondary damage. damaged.
None of them have anything to do with the cause of the accident.
Therefore, at the beginning, he didn’t actually have high expectations.
It was just a routine matter to bring the notebook to the subordinate, preparing to find the corresponding technical information according to the number for comparison.
This time, however, it didn't even wait for him to write down the part number.
Just look in the direction the other person is pointing.
My eyes suddenly widened.
That's a short piece of pipe.
It should be used to transport lubricating oil or fuel.
Due to the combustion and subsequent explosion, it has been somewhat deformed in the middle.
At a quick glance, it seems to be no different from hundreds or thousands of other similar wrecks.
However, if you look closely at the cross section of this pipe, you will find it.
The thickness of its tube wall is inconsistent.
In other words, it is an eccentric tube.
Basically, such a design will only be made in some extremely special circumstances, or when it is necessary to fight against self-respect.
Turbine accessories for aircraft engines are obviously not included in this list.
In other words, this is almost impossible to be a design requirement.
There is a high probability that there is a problem during production!
In an instant, Ren Bingda felt ten years younger.
My legs no longer hurt, and my waist is no longer sore.
Standing up with a groan, resisting the dizziness caused by insufficient blood supply to the brain, he found the list of external accessories of the receiver and the production technical documents from the side.
After comparing them one by one, we quickly found the location of this short pipe -
High and medium pressure turbine bearing casings and oil delivery pipelines.
As expected, in the design file, here is a uniform short tube with a wall thickness of 0.91mm.
At the moment, although the two of them did not have precise measuring tools at hand, they could see with the naked eye that the thinnest part was not even half a millimeter.
“What a coward...”
Looking at the production technology documents in front of him, the young man next to him sighed with emotion, even speaking in dialect:
“Any Total... to be honest, I still can't believe it..."
This kind of quality problem that is so outrageous that it can be seen with the naked eye, for someone like him who only started working in the mid-1990s, It's simply unimaginable.
However, it just passed two inspections by the first-tier supplier and Rolls-Royce itself, and was installed on the Trent 900 used for testing.
Ren Bingda next to him looked calm on the surface, but his slightly trembling hands clearly revealed his inner shock:
"It's really a grease pipe..."
Before this trip, Chang Haonan specifically asked to focus on turbine accessories, especially the fuel and oil supply system.
Although he did as he was told, he was still a little bit murmuring in his heart.
After all, there are thousands of possibilities for external causes of shaft breakage, and it is difficult to smoothly deduce the real cause.
But now the iron-clad reality is before him, and he cannot help but not believe it.
At this time, Ren Bingda suddenly remembered that he seemed to have talked about the turbine attachment with Chang Haonan half a year ago.
"Check again which supplier produced this turbine attachment."
Then there was a clicking sound of the mouse wheel spinning next to it.
"It's... Kawasaki Heavy Industries."
(End of this chapter)