The Armory - Guns, Knives, and Axes

[TheReal_ND]

No that's really it. They mounted the motors upside down and attempted to patch the software. When the pilots tried to fight it they would nose dive, because of course, the software is retarded and the commercial pilots have next to zero flight experience outside of auto pilot.

There are clips on YouTube that explain exactly how to override the flawed system they built into the retard aircraft and basically anyone with a few hours of flight time and a double digit IQ can figure out how to override the stupid system.

But alas, this is clown world and people piloting are diversity hires and skinnys that push buttons on screen

[Smitty-48]

When you have a plane like this, one that is not stable without the flight controls correcting it, if anything goes wrong with the FCS, it's not a gradual transition that the pilots can react to in an orderly fashion, instead the pitch effect comes on instantly, and they are fighting hard to recover. If they're too low, they just run out of room.

[TheReal_ND]

It's just telling how little they give a fuck about their customers tbh

Did I tell you about that time TSA pantsed me in front of everyone after telling me to take off my belt and shoes? Wild shit. He told me to hold my arms out at my side then pulled my pants down on purpose. Then he told me to hold my pants up.

[Smitty-48]

It is a profit over people situation.

They don't want to spend the money on a clean sheet design, they just want to milk the 737 cash cow.

[TheReal_ND]

That's what I was saying.

[Smitty-48]

My guess as to what happened in this last crash, based on it going straight in nose down, is that first it pitched up and stood on its tail, then it fell off and the nose came down fast, they were pulling hard to recover, but fully loaded right after take off, they were heavy, so they didn't have the lift to get the nose back up.

Takeoff is the most dangerous. Anything goes wrong when you're low and heavy, you're in big trouble.

[Smitty-48]

Generally I'm fatalistic about flying, I've never had a fear of it.

This plane is spooky tho.

That sudden pitch up pitch down effect is scary, because it is inherent to the design.

It's an embedded flaw, right in the DNA.

[Smitty-48]

In other words, it will never be corrected.

They will just patch the flight control software again.

They can never correct the embedded aerodynamic flaw.

But they will keep selling them and flying them, the FAA is not going to force them to design a new plane.

[The Conservative]

They figured out what happened to the Lion Air 737 Max.

https://www.bloomberg.com/news/articles ... -e0dbq22Rc

AOA probe was repaired by a contractor in Florida. Installed on the aircraft in Bali. Never worked from the time it was installed. Faulty AOA probe sent false signal to, I suppose, whatever you call an Air Data Computer on that thing. ADC would have sent bad angle of attack data to whatever they call a Flight Control Computer on the 737 Max. FCC then realizes (falsely) this thing is in trouble and took control, trying to correct for an angle of attack that was not the actual situation.

AOA probe should have been bench checked at the depot that allegedly repaired it. Looks like they did not. Maintenance guys in Bali should have ops checked it after they installed it. They obviously did not. Aircrew failed to realize what was happening in time when the automated flight control system kicked in and pitched down. Three fuck ups lead to a crash.

This is why I refuse to fly commercial. It's a terrible industry.

I’d check the records and see if the same Bali crew authorized flight of the other crashed plane too.

Here is the problem, if what you say is accurate, and Bloomberg isn’t just trying to make news without having all the facts... it’s still human error that caused this.

It may have been mechanical in nature per sey, but it was overlooked or ignored due to humans.

Why the Auto Pilot couldn’t be turned off while in flight still has not been answered either.

[Speaker to Animals]

They figured out what happened to the Lion Air 737 Max.

https://www.bloomberg.com/news/articles ... -e0dbq22Rc

AOA probe was repaired by a contractor in Florida. Installed on the aircraft in Bali. Never worked from the time it was installed. Faulty AOA probe sent false signal to, I suppose, whatever you call an Air Data Computer on that thing. ADC would have sent bad angle of attack data to whatever they call a Flight Control Computer on the 737 Max. FCC then realizes (falsely) this thing is in trouble and took control, trying to correct for an angle of attack that was not the actual situation.

AOA probe should have been bench checked at the depot that allegedly repaired it. Looks like they did not. Maintenance guys in Bali should have ops checked it after they installed it. They obviously did not. Aircrew failed to realize what was happening in time when the automated flight control system kicked in and pitched down. Three fuck ups lead to a crash.

This is why I refuse to fly commercial. It's a terrible industry.

I’d check the records and see if the same Bali crew authorized flight of the other crashed plane too.

Here is the problem, if what you say is accurate, and Bloomberg isn’t just trying to make news without having all the facts... it’s still human error that caused this.

It may have been mechanical in nature per sey, but it was overlooked or ignored due to humans.

Why the Auto Pilot couldn’t be turned off while in flight still has not been answered either.

They would be different crews. It is not known yet for certain if the Ethiopia aircraft crashed due to a bad AOA probe, since they have not yet found one of the two on the Ethiopian aircraft (each aircraft has two on each side of the forward fuselage).

Nor have they yet connected the Ethiopian AOA probes to the same Florida repair shop. It is possible the AOA probe went bad on its own, or a different repair shop essentially CnD'd an AOA probe without fixing it and shipped it off to the Ethiopian airline.

It is also quite plausible to me that maintenance crews installed bad AOA probes and ran an improper ops check, assuming they just work (I never saw an AOA probe go bad and the ops check for that sucks almost as much as testing the pitot probes).

The MCAS system is not autopilot in the sense that you are thinking (flying to waypoints), but an automated system that kicks in to save the plane before it is about to stall. This airframe is inherently unstable and needs CAS system to augment manual flight controls. Because this thing can potentially pitch up and stall, this MCAS system was designed to detect that high angle of attack and automatically pitch the nose down.

But if the AOA probe gives the Air Data Computer bad data, then the Air Data Computer sends the wrong angle of attack to the flight control computer. When the flight control computer thinks the plane will stall, it engages MCAS, which pitches the nose down. Since the aircraft was in a level flight, MCAS pitches the plane straight towards the ground.

Aside from the terrible maintenance failures, there are two obvious design failures here:

1) They did not account for the condition of a bad AOA probe when designing this "feature" (rather than a feature, it is a workaround for a poor design decision to make this aircraft unstable) in design. The air data computer must have received two different angle of attack readings from its two probes, and the flight control computer should not have automatically nose dived the jet when it should have had the conflicting data and known that pitching down could endanger the flight.

2) We now know that when MCAS pitches the nose down, it can be impossible for the crew to recover no matter what they do. This is perhaps the most frightening fact that has come out, since it indicates this entire airframe is inherently dangerous. There is no fixing that in an adequate way. Just more MCAS solutions like the one that just crashed two jets. This could be one of the biggest aerospace engineering fumbles if all time if the FAA declares that airframe inherently unsafe.


I could add a third meta design problem:

3) Do not fucking design passenger airliners like they are fighter jets, for fuck sake. An airliner should be stable. It should just want to fly in a straight line and not need complex technical solutions to maintain level flight.