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A comment on Boeing Built Deadly Assumptions into 737 Max, Blind to a Late Design Change. Parent comment

Re:Boeing Built Deadly Assumptions into 737 Max, Blind to a ... by inferiorhuman on Saturday June 01, 2019 @07:51PM (#20072535)
There’s a big difference between a system which must work and a system which must not go wrong. For example, the fly by wire system in an Airbus must work. A failed sensor must not disable the system. Thus, you need at least triple redundancy to keep functioning in the event of a failure.

Fly-by-wire Boeings still only have two alpha vanes. Go ahead, take a look at the next 777 or 787 you come across.

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Re:Boeing Built Deadly Assumptions into 737 Max, Blind to a ... by mikeash on Saturday June 01, 2019 @09:29PM (#20072899)
Presumably the AoA sensors are not required for that system to function.
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Re:Boeing Built Deadly Assumptions into 737 Max, Blind to a ... by Xixi on Sunday June 02, 2019 @02:04PM (#20076994)
AoA sensors are not required for Airbus FBW systems to function either. But they are required for the flight enveloppe protection system to function.
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