3 ms·
It brings up the question of what it means for the two sensors to disagree. How much do they have to disagree? For how long? How many times? The atmosphere is f
by upofadown 8y ago
It brings up the question of what it means for the two sensors to disagree. How much do they have to disagree? For how long? How many times? The atmosphere is full of weird effects that can transiently make the two sensors be different. How much and for how long do you get to disable the MCAS system until you can't claim it as a protection? If you can disable it whenever things get strange then why have it at all?
There is a tendency to fixate on the bug that caused a crash to the extent that you introduce new more new bugs than you had before.
- linuxftw 8y ago> There is a tendency to fixate on the bug that caused a crash to the extent that you introduce new more new bugs than you had before. Exactly this. It can't be both required for safe flight and disabled at a moments notice during the most dangerous portion of a flight (takeoff).
- tzs 8y agoI think the sensors are on the side of the nose, about as far forward as the pilots. It looks like one is on the left and one is on the right. These things are essentially just wind vanes that read the direction that the air is moving past them. Short of the plane flying obliquely into a tornado, I can't think of any atmospheric effect that could lead to a disagreement. You'd need an atmospheric effect that causes a significant difference in wind direction between two points that are maybe 3 m apart and the difference that atmospheric effect is trying to cause would have to be noticeable when superimposed on the wind vector due to the plane's velocity.