On the nearly seven-meter-long wreckage of the left wing, viewed from the tip of the wing to the root, there were initially half-meter-long, messy white scratches, followed by a gap about three meters long. And on both sides of this huge gap, along the cracked metal section, like a spider web, black cracks extend outward densely, like wrinkles on the ground.
If the plane crashes into the sea, it will inevitably cause fracture and damage to the fuselage.
At first glance, these injuries were very normal, but after Zhuo Huan's reminder, everyone realized something was wrong.
Old Joseph has many years of experience in air accident investigations. He sensed something was wrong, touched his chin and said, "Reid, you mean, this fracture line is wrong? It takes an instant for the plane to crash into the sea, even if the plane barely maintains the flight on the sea surface. A few seconds, from the moment it fell into the sea, it was destined to be destroyed by the powerful ocean power of the sea. This is a sea crash, not a forced landing on the river, and the Hudson miracle cannot occur."
The sea, not the river.
In 2009, US Airways Flight 1549 suffered a bird strike shortly after takeoff from LaGuardia Airport in New York, killing all four engines. As a last resort, the plane had to make an emergency landing immediately, and finally the captain chose to make an emergency landing on the Hudson River. The crash landing was very successful, with no victims and only a few injuries.
This forced landing is known as the Miracle on the Hudson.
But if this happened on the sea, the Hudson miracle would never happen.
During the movement of seawater, it will generate extremely large tidal energy, wave energy, ocean current energy, etc.
Landing on smooth water is no different from landing on concrete. Not to mention landing on rough seas. Powerful sea power is sure to tear this plane apart, without exception.
Old Joseph: "As far as the fracture surface is concerned, I can't see anything wrong with the naked eye. It is the tip of the wing entering the water, and the farther back, the bigger the gap is, which is also in line with common sense. Cracks will also grow bigger. These are in line with the fracture toughness of metals. Do you think there is something wrong?"
However, Old Joseph didn't expect that Zhuo Huan didn't give an answer immediately after he finished asking this question.
Both Fucheng and Old Joseph looked at him, but Zhuo Huan frowned slightly. He looked carefully at the fracture on the left wing for a long time, and finally raised his head: "I can't be sure, but this crack is full of cracks according to my intuition. Some kind of strangeness."
Fu Cheng: "What kind of strange feeling?"
"Is it supposed to be like this?"
Fucheng looked at him: "Teacher Zhuo?"
Zhuo Huan: "Calculate first."
***
Investigate headquarters, conference room.
Su Fei: "Is it a human?"
Fucheng: "..."
The punk boy turned his head dissatisfied and said, "Brother Fu, you should say 'it doesn't look like' now."
Fucheng: "..."
After a while, he was expressionless: "It doesn't look like it."
Su Fei nodded and sighed, "I'm afraid this is not a beast in human skin."
Zhuo Huan's tall back paused slightly, and after a cold snort of contempt, he said without raising his head: "Remove the room for him and change it to a standard room."
Even though she didn't mention her by name, Lina knew that it must have been said to herself. She smiled slightly and said, "Okay." Then, she picked up her phone and prepared to check out.
Su Fei ran over in horror, held down the hand she wanted to make a phone call, turned to Zhuo Huan and said angrily: "Everyone lives in a suite, why should I live in a standard room! It's not you who pays, NTSB pays for it!"
After hearing this, Uncle Zhuo didn't bow his head to write formulas and calculations. He raised his head, leaned back on the chair, and left Su Fei with an arrogant chin—not a double chin.
"Just because I'm the head of UAAG." Then he looked at Lina, "Book him a small hotel on the street."
Su Fei: "Is there any way for people to survive!"
Zhuohuan: "Chick."
The so-called cheap mouth is probably the case.
Su Fei burst into tears, regretting being so mean in front of Uncle Zhuo. He kept acting coquettishly at Lina, begging Lina not to return his suite: "It's more than 10,000 a night! I haven't lived enough! I'm exhausted every day, and when I go back, I lie in my comfortable jacuzzi Here, only by enjoying a SPA can I live like this."
Lina smiled softly: "Why do you have to say in front of Reid, silly boy, you are behind his back, you can say whatever you want."
Uncle Zhuo: "..."
"Humph."
In fact, this matter can't be completely blamed on Su Fei's cheap mouth.
Fucheng quietly looked at a certain man and the thing in front of him.
I saw countless A4 papers on a large conference table. Each piece of paper is written with a black ink pen, with complicated formulas and calculation processes. It is not complicated to measure the fracture data and various physical properties of the left wing of the aircraft. But it is as difficult as climbing the sky to find that trace of strangeness.
First, they didn't know what was wrong with the rip in the plane's left wing. Then every aspect has to be considered.
Could it be the inherent metal fatigue
Before the plane fell into the water, the left wing was broken, but because it fell into the sea later, the original fracture was covered by a new one
Could it be that the left wing of the plane was cut off by something
For example, when Fucheng flew from New York to Boston half a year ago, the wing of the plane was cut by engine debris.
There are many, many unforeseen possibilities.
So in order to find out that little difference, Zhuo Huan started a detailed calculation. Since the morning, he has been sitting at the desk, and now he has calculated for a full four hours. All kinds of physical formulas and mathematical announcements slide out smoothly from the pen without any sense of stagnation.
As if directing a grand and elegant symphony, every time he raises his hand, he strips the symbols from the score, and puts them on the paper forcefully with an undeniable ruthlessness. In this way, they converge into a majestic theoretical symphony.
No wonder this man was able to attend the World Physics Congress.
This thought suddenly flashed in his mind, and before Fu Cheng could recover, he heard Zhuo Huan say: "Pour me a cup of coffee."
Instantly awake, Fu Cheng looked around. At some point, Lina had already left the conference room, and Su Fei followed her of course, begging her not to change the room for herself.
As if taking it for granted, the black-haired young man stood up, walked to the tea room, poured a cup of coffee, and handed it to Zhuo Huan.
"Thank you." Slightly raised his head, his eyes paused on the hand holding the coffee cup. Finding that it wasn't Lina, Zhuo Huan raised his head and looked towards Fucheng. Their eyes met for a long time, Zhuo Huan raised his eyebrows and said, "Aren't you leaving?"
Fucheng pulled up a chair and sat down: "Just to read some materials. Will I bother you, Mr. Zhuo?"
He fixedly looked at the young man in front of him, his eyes resting on those beautiful eyebrows for a moment.
Zhuo Huan smiled: "No."
Although he has always been single-minded when working, he will never be disturbed by the outside world.
But it is not a bad thing to have a good-looking person around, at least it can purify the air and be pleasing to the eye.
Just sit for a whole day.
Fu Cheng rubbed his sore shoulder, raised his head, and found that Zhuo Huan was still calculating the fracture data of the left wing of the plane.
He casually took a piece of waste paper that Zhuo Huan crumpled into a ball and threw it into the wastebasket, opened it and read it.
"... Griffith energy relation?"
"you know?"
Fu Cheng raised his head: "Well, I saw it somewhere before, I should have seen it in the theory class before."
Flying a plane is not driving a car. Pilots not only have to learn how to fly a plane, but also learn various theoretical knowledge. From the most basic aerodynamics, electronic and electrical principles, to ergonomics, meteorology... everything.
Of course, the fracture mechanics of metals is definitely not included.
Which pilot would go to learn what to do if the plane breaks down without any trouble. In such a situation, it is more practical to learn how to skydive first.
While bowing his head to calculate, Zhuo Huan calmly said: "That is based on the assumption that the aircraft has metal fatigue, but the answer is wrong. Its left wing did not break in a static state, it was not a brittle fracture, but a plastic deformation."
Fucheng smiled slightly.
…pretend to understand.
Fucheng: "Teacher Zhuo, do you have any clues?"
Zhuohuan: "What do you think?"
Fu Cheng: "Do you want more coffee?"
"Um."
He went to pour another cup of coffee, and when Fu Cheng returned to the meeting room, he saw Zhuo Huan had already stood up. He held a piece of draft paper, stood under the bright incandescent lamp, raised his hand, and looked at the content on the paper through the light.
The bright light illuminates the white paper transparently. It passes through the thin paper and shines on the man's cool and elegant face. Zhuo Huan slightly narrowed his eyes, moved his thin lips, and let out a deep sigh.
At this time, he turned his head and saw Fucheng standing by the door.
Like the spring breeze blowing over the steep ice field, the confident and proud light converged into the starlight in his eyes, he raised his chin towards Fucheng, waved the draft paper in his hand, and the paper made a crisp sound in the air.
"Oh, I found it."
Fu Cheng looked at the man in front of him, his lips parted, but he didn't make a sound.
After a while.
Fu Cheng: "Congratulations."
***
Hearing that the investigation had made new progress, Lovins immediately went upstairs to the conference room.
As soon as he entered the room, he looked anxiously at Zhuo Huan: "Patrick, have you found any new clues?"
Zhuo Huan raised his eyes and glanced at him: "Don't worry, sit down."
Lovins hastily pulled up a chair.
Lina has already entered Zhuo Huan's previously calculated data into the computer and projected it on the screen.
Zhuo Huan stood up and began to explain the content on the screen.
"According to the amount of deformation and compression ratio of the metal, when American Airlines 4012 enters the water, the water surface tension of the ocean will be destroyed, and a reverse force will be exerted on the fuselage body..." The voice stopped abruptly, and Su Fei and others looked at it unclearly. With such an expression and Lina’s polite smile, Uncle Zhuo suddenly felt overwhelmed by the heights, sighed in his heart, skipped the process, and said: “In short, based on preliminary calculations, excluding the acceleration of gravity and the airspeed of the aircraft itself, American Airlines When 4012 crashed, the plane was in a state of acceleration and rushed into the sea. Moreover, the acceleration reached at least 7m/s."
As soon as this sentence came out, the meeting room fell silent.
Old Joseph said: "You mean, this plane... was actively accelerating into the sea?"
Uncle Zhuo raised his eyebrows: "I think I made it very clear."
Everyone was in an uproar.
Su Fei also felt unbelievable: "Speed into the sea, which means that the pilot kidnapped the plane and committed suicide?!"
Zhuo Huan glanced away, and was about to speak when Fu Cheng's voice sounded ahead of him: "Mr. Zhuo didn't mean that, but it's a possibility. What is known so far is that when this plane crashed into the sea... it was almost maximum acceleration."
The author has something to say:
Zhuo Anxi: Fucheng is staying beside me, purifying the air. so, Fucheng = air purifier.
Fu Chengcheng: Heh.