Pilots can control the aircraft, which is not achieved by correcting the handlebars and stepping on their feet, just like riding a bicycle.

Aircraft are undisputed behemoths.

Even a small flap weighs dozens of kilograms, which is difficult for ordinary people to shake.

Then, the pilots rely on brute force to control the aircraft, of course, but a complete control system.

A hundred years ago, this system was realized by the simplest pulley and steel cable, and used the principle of leverage, which was called a mechanical system.

After that, it became a hydraulic system. Through a hydraulic pump, human power is amplified to achieve control of the aircraft. For example, the pilot only emits 1 Newton of force, but the hydraulic pump can amplify it to hundreds or thousands of times, so that this behemoth can be controlled.

Nowadays, with the development of computers, telex systems have gradually become the mainstream.

A telex system allows computers to control the aircraft.

This view is still controversial in the industry.

Whether to focus on pilots or computers, several major aircraft manufacturers have their own emphasis and debates.

But without objection, they all used the telex system on the new aircraft.

Maifei F435 uses a telex system.

The telex system includes all aspects of the aircraft. The computer can control the take-off and landing of the aircraft, the change of the rudder angle, and the engine size.

Since EASA confirmed the cause of the "four engine stalling" accident, they first ruled out the two reasons: fuel exhaustion and weather factors. What they suspected next was not human factors, but telex systems.

There will be errors in the computer.

The computer error and shut down four engines at the same time is the most likely cause of the accident.

However, Zhuo Huan now told him to check the engine.

Check engines related to the freight system, not the freight system related to the engine.

The engine is the main body, and the telex system is the secondary.

This decision is puzzling.

Just as Fucheng said, these four engines were shutting down together.

If there is really something wrong with the engine itself, how could the four units make a mistake together? But now Zhuo Huan asks them to start from the engine, and everyone finds it incredible, but they can do nothing, so they can only start from metal fatigue.

Metal fatigue.

After metal materials repeat the same work tasks for a long time, structural damage will occur.

Quantitative change results in qualitative change. When fine cracks and damage accumulate to a certain extent, fracture will occur.

Previous investigators did not conduct detailed inspections of the engine, so it is very likely that the damage to the engine parts caused by metal fatigue was mistakenly regarded as the explosion after the crash.

What everyone needs to do now is to find out every key part, check it in detail, and determine whether they were damaged before the crash or were damaged after the crash.

This is a physical job.

Everyone checked together for a whole day and only had one-twentieth of them.

At this time, the black box was sent over by Mai Fei Company.

The moment she saw the black box, Su Fei ran up excitedly with tears in her eyes: "Is this for me?"

Old Joseph was so amused and crying: "Look at it for you to have fun."

Su Fei was so happy that he followed the staff to send the black box upstairs, then ran down to Fucheng and said, "Brother, I'm sorry, I'm leaving you alone. I'm going to do another great cause. Don't worry, when I repair the black box, I can prove that what RIP said is wrong and save you from the sea of ​​suffering."

Fucheng smiled and said, "Okay, I'll wait for you."

Su Fei suddenly felt that he had the hope of the whole village to defeat the Great Demon King, and returned to the second floor with a lofty mood. When he left, he kicked Zhuo Huan in the direction, and Fucheng opened his eyes wide in surprise. After Su Fei left, he turned his head and looked in the direction where Su Fei had just kicked.

That man didn't look like a great devil at all.

Wearing a white T-shirt, he tied his black coat around his waist. The long hair was stroked by the owner a few times and a small pull. He held a flashlight in his right hand and a metal fatigue detector in his left hand. He sat inside the No. 1 engine with a high stool. The light beam of the flashlight hit upwards, carefully checking every part above the engine.

He was extremely focused, as if there was a water curtain, separating him from the noisy voices outside.

There seemed to be light in his eyes.

Fucheng looked away with a calm expression.

The repair of the black box is more difficult than Su Fei imagined.

In fact, if this black box is so easy to repair, Maifei Company wouldn't have taken several months and has not been repaired yet.

Twenty-three days later, the engine's metal fatigue identification was completed, and no metal fatigue was found.

On the other side, the black box has not been repaired yet.

It took a full twenty-three days to check all four engines from the inside to the outside, but nothing was found. Several UAAG people had no objections, but investigators from other institutions had some objections in private.

When Fucheng poured water out of the tea room, he heard an EASA investigator whispering to his companions: "Although Mr. Patrick is a recognized genius aircraft designer in the industry, this is an accident investigation, not a design aircraft. This is his second time participating in an aircraft accident investigation. He has no experience at all and has wasted more than 20 days."

"To be precise, this can be considered his first time. In the crash of Roger Airways four years ago, the black box has not been caught in the sea. After more than three years of investigation, no clues were found."

"It's not that I disrespect Mr. Patrick, but maybe he is more suitable for building aircraft than investigating air crashes...well..."

Fucheng walked past the two of them with a water cup.

One of them hurriedly said, "Fu, don't get me wrong, we don't mean that."

Stopped, Fucheng turned around, looked at them, and said word by word in a calm but firm voice: "He is Reid Irvin Patrick."

After the words were finished, he took a step away.

Behind him, two EASA investigators stood still without saying a word.

The young black-haired man held the water cup and took a few steps. He walked to the corner. Suddenly, he stopped.

After a long time, Fucheng's voice was calm: "Teacher Zhuo."

Zhuo Huan held a cup of coffee in his right hand, and leaned gently against the wall. He lowered his head and took a sip of coffee, turned his head and looked at Fucheng. "It seems that you always have this expression."

"Teacher Zhuo?"

"Calm down, calm, neither sad nor happy." Standing up straight, Zhuo Huan thought for a while, "When laughing, polite and distant, and when you don't smile, you're like a statue standing there. Oh yes, it's a bit like that."

Fucheng looked in the direction of his finger.

Lina is a standard Frenchman with a very romantic and ritual sense. Even if she temporarily works in a foreign country, she also has a SEEROSE immortal flower bear on her desk. The pink rose bear is treasured in a glass cover and is tied with a black gift knot.

Retracting his gaze, Fucheng: "I don't understand what you are talking about, Teacher Zhuo."

Zhuo Huan looked at him deeply.

for a long time.

The long-legged gentleman stepped away his legs and gave an order: "Let's go, go downstairs and take a look."

After nightfall, the staff returned to the second floor to sort out the metal fatigue information they had inspected before. One floor was empty and only four huge engines were placed.

There were confidential parts everywhere, and when the two went downstairs, they threw the disposable water cup in their hands into the trash can to prevent accidents.

Zhuo Huan said while walking: "Excluding weather reasons and human factors, do you think if the flight system is wrong, what is the most likely place to go wrong?"

"Feed-by-wire system."

"So firm?"

"Yes." Fucheng added: "You just said that it is most likely, not 100%.

"What if it must be an engine?"

Fu Cheng raised his head and looked at him, finally showing a puzzled look: "Why must it be an engine?"

Zhuo Huan pointed to his brain: "Intuition."

Fucheng: "The current monitoring result is that there is no partial damage to the engine. Except for damage caused by the explosion after the crash, it is intact."

Zhuo Huan said to himself: "On January 17, 2008, when British Airways Flight 38 landed at Heathrow Airport, four engines were shut down together and finally landed on the lawn in front of the runway. Fortunately, no one died. The subsequent investigation results showed that the reason was that the engine's heat exchanger was poorly designed. When the plane flew over Russia, the temperature was too low, and the moisture in the fuel condensed into ice. The ice slag blocked the oil pipeline. The engine had no oil, so it would naturally shut down. Does it sound familiar?"

Fucheng nodded.

He used to be a pilot, but after he was transferred to UAAG a month ago, he made up for many accident investigation materials. The accident on British Airways flight 38 was also within his reading range.

Fucheng: "Because this accident was caused by freezing, after the plane crash, all the ice melted into water and disappeared. This caused a huge obstacle to the investigation process. It took AAIB eight months to find out the truth."

Zhuo Huan: "Does it sound familiar?"

Fucheng was stunned.

Zhuo Huan laughed and his voice was dissipated: "It's very similar to this time. When you fly over the Arctic Circle, the water will disappear, so the murderer cannot be found. This time the murderer disappeared mysteriously."

A buzzing sound hit Fucheng's mind.

The face of this statue of the immortal flower finally changed colorfully. He said hurriedly: "You mean, this time it's also a problem with water?!"

"Have I said so?"

Fu Cheng was stunned: "Teacher Zhuo?"

Zhuo Huan did not answer, but suddenly asked: "What were you looking at when you were at the crash site and touching the scorched ground at the initial impact point?"

Fu Cheng opened his lips slightly.

"Or, what did you see?"

The eagle-like eyes shot straight towards him, pushing into the eyes of the black-haired young man.

Zhuo Huan had an invisible smile on his lips, but the smile did not reach his eyes. He looked at the black-haired young man in front of him with a sharp look. He couldn't tell what his eyes were, and Fu Cheng felt a hint of hope and wish from it.

This man seemed to be expecting something, looking forward to what kind of answer he would say, and then use his answer to prove something.

What is it?
Chapter completed!