Jack doesn't think there's anything noteworthy about this, there are people with motion sickness and airsickness, and it is definitely impossible for the plane to fly smoothly before the accident, isn't it normal for passengers to vomit?

Unexpectedly, Red's words caught the attention of Rillo Pocks, an NTSB official, who stepped forward to observe the carpet carefully, and nodded in agreement.

"It's an interesting discovery, I found similar traces of vomit in the rear fuselage section before, and I thought it was just an isolated case, it seems that the plane may have experienced an unusual longitudinal turbulence, and I will write this speculation in the report."

Seeing Jack's puzzled look, Red took the initiative to gesture and explain.

"It's like riding a roller coaster, going up and down."

Jack waved his hand repeatedly, he was not a fool, and the meaning of the word could certainly be understood.

"I mean, isn't it normal for planes to have this kind of turbulence, or in bad conditions?"

"So, do you throw up on a roller coaster?" Red looked at him like he was looking at a Muggle, which was very unpleasant.

Jack shook his head, resisting the urge to clean up the kid at once, it seemed that he had neglected him a little lately.

"Everyone's tolerance for longitudinal bumps is different, and it's like riding a roller coaster, and most normal people don't spit out in mid-air, otherwise," Red continued.

Jack hurriedly nodded in understanding, the picture is too beautiful, don't imagine it.

"You can think of this longitudinal bump as a frequency, and only when it reaches a certain frequency can a normal person have a vomiting response in a short period of time." Red finally got to the point.

"So under what circumstances does an airplane have longitudinal turbulence of this frequency?" Jack asked.

"Was caught in the wake of another large airliner, but there was no second plane near the radar at that time." Lillo Pox shrugged, self-denying the speculation.

"Or maybe the slats are opened in mid-air." Reid disagreed.

Lillo Pox shook his head in disagreement, "It's all too rare for a slat to open in flight, and there are multiple insurances to prevent this from happening. ”

"Crashes on large airliners are rare in themselves, aren't they?" Rhett retorted unconvinced.

"Stop, stop, who can explain, what is a slit? Shouldn't it be called flaps or ailerons? The more Muggle Jack listened, the more confused he became.

In his previous life, he was also a "War Thunder" (an air combat game made by Mao Zi), and the number of downs and downs was almost tens of thousands, so why did the two of them suddenly not understand what they were talking about.

"No, there are a lot of different surfaces on the wing, the ailerons are mounted at the rear of the wing, and the flaps have both leading edge flaps and trailing edge flaps, in addition to the leading edge slats, flight spoilers, ground spoilers."

Seeing that mosquito coils had appeared in Jack's eyes, Red simply turned over the aerial map of the scene in his hand, took out a pen and drew a schematic diagram of the wings on the back.

"The wing composition of large passenger aircraft is more complex, such as the leading edge slat, which is usually only opened when the aircraft takes off and lands, which is used to improve the critical angle of attack of the aircraft and reduce the possibility of stalling."

"But if it's suddenly opened in mid-air, it's a disaster."

Jack nodded his head to show that he understood, and the useless knowledge was +1 again.

"Oh damn it, there's trouble." Lilo Pocks stopped discussing with Red, suddenly looked not far away, and then burst out into a foul mouth.

I saw seven or eight news trucks driving into the scene in a row, with the logos of various TV stations printed on their bodies.

"It looks like I'm going to be out of company, and the biggest challenge of this kind of investigation is to get ahead of the media and the boring conspiracy theories."

Rilo Pox said goodbye to the two of them helplessly.

"Fortunately, this is a joint investigation, and there are special people to deal with these guys, otherwise I'm afraid Jiejie won't even have time to sleep at night."

Jack sighed, turned around and continued to search the scene with Red, of course, many of them could only be swept by in a flash.

Analyzing a large air crash is a painstaking task calculated in months, sometimes even for years, but fortunately, these are NTSB jobs, and what the FBI has to do is to rule out the possibility of a terrorist attack in as short a period of time as possible.

The post-911 federal federation was frightened by such air crashes, and conspiracy theories were taken very seriously, at least within the FBI.

Once some unfavorable conclusions are reached, the FBI should issue a warning at the first time, and leave it to the top management to decide whether it is necessary to suspend all flights in a short period of time until the possibility of a subsequent terrorist attack is ruled out.

In addition to the still smoking wreckage and mutilated corpses, there were also a lot of luggage and passenger belongings scattered around.

The two found some children's toys and even baby bottles and diapers, and although the NTSB has not sent a specific list of passengers, it is clear that more than one minor was among the innocent victims.

"Hopefully it was just a simple accident." Jack sighed, no matter how he killed the murderer, he could only comfort the family of the deceased to some extent, but the deceased had passed away after all.

Before dark, Jack and Red left the scene, and now they are rushing to the hospital to join Jay and Emily, who are staying at the hospital.

Hodchner and Rossi, who were at the Colorado Emergency Management Office's Emergency Command Center, called and confirmed that Flight 420 was not supposed to pass through Colorado and that the crash site and the actual course were 150 miles off.

The air traffic controller lost contact with the plane 13 minutes before the crash, which means that the plane yawed almost at the same time as it lost contact with the ground.

Ten minutes after the loss of contact, three minutes before the plane crashed, ACARS (Communications Addressing Reporting System) was shut down without knowing whether it was automatic or human.

The ACARS system can be thought of as an air-to-ground data link for the transfer of data between aircraft and ground stations.

For example, when the ACARS subsystem on the aircraft detects an engine abnormality, it automatically generates a message and sends it to the ground via a radio transceiver, so that ground maintenance personnel can obtain this data in real time.

So when ACARS was shut down, ground airfields were left with no idea what was happening in the air, and could only analyze it by analyzing the black box data afterwards.

Now Hodgner is interrogating a military commander from DHS (Department of Homeland Security) who reported to the police that he had seen the so-called "light belt."

The trouble is that the old man, Petosky, is a typical conspiracy theorist, full of confrontational feelings towards uniformed military representatives, and the situation is temporarily deadlocked.

(End of chapter)