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Fight Computer Against Humans
4 months ago

After studying the previous information and statements about the two crashes of a Boeing 737 Max 8 and the characteristics of this airplane, I come to the result in a few words, here a fight took place between the computer of the airplane and the pilots.

That means, because of wrong information of sensors the computer put the plane in a dangerous position, the pilots tried to correct this, but the computer corrected the correction and put the plane in a dangerous position again.

This explains why the recorded flight profile goes up and down very erratically.
Finally, the plane crashed almost vertically into the ground at extremely high speed.

The first graph shows the speed of the 737 Max 8 of Lion Air that crashed into the sea on October 29, 2018 in Indonesia shortly after taking off from Jakarta.


All 189 people on board lost their lives.
Parsifal, March 14, 2019

Among this is the profile of Ethiopian Airlines 737 Max 8, which fell out of the sky last Sunday shortly after takeoff from Addis Ababa and crashed to the ground, killing all 157 passengers and crew.

What is noticeable is the up and down speed of the planes, where both planes lost hundreds of meters of height, a sign of very big problems.

Both planes were brand new, those of Lion Air three months and those of Ethiopian Airlines only four months in service.
Both pilots had a lot of flying experience.

Interruption: Just as I am writing these lines on Friday at late noon, the latest news reaches me, a Boeing 737-800 had to make an emergency landing in the north of Russia, this time due to engine failure.

On my long-haul flight, there was also the problem that the autopilot corrected the altitude up and down, the plane moved like on a roller coaster.

The only solution for the pilot was to switch off the autopilot, take over the control and continue flying manually.

But now the 737 Max 8 does not allow the pilot to switch off the computer, at least not the part of the software that should prevent the side-slip.

So what could have happened, the computer said during the climb after the takeoff by a defective angle of incidence sensor, the machine is side-slipping and therefore pressed the nose down to increase the speed.
The pilot noticed, however, that this is wrong and pulled the nose upwards.

Then the computer corrects again and pushes down.
The pilot did the counter manoeuvre again.
That repeated itself several times and the machine carried out this roller coaster movement, which rose bigger and bigger.

According to radio records, the Ethiopian Airlines pilot reported that he had difficulty controlling the plane and demanded an immediate return to the airport, which he was granted.

In this fight against the computer and the ups and downs, more and more altitude was lost, which is low anyway because of the takeoff shortly before, until it came to an impact with the ground.


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