Comment by xxs
5 years ago
Actually I wonder how having two sensors is a good idea, anyways. There is no quorum of two, if one of the sensors is off, what's the actual angle of attack?
I dont understand much of redundancy of sensors, yet '3' would allow to ignore the 'bogus' reading.
It seems such a weird thing to cut corners on.
The main new feature in a plane solving a problem that they knew was potentially dangerous which is why they had to install the auto-nose-down system in the first place.
How expensive could a couple of extra sensors even be compared to a whole plane?
Maybe the extra sensors added significant drag?
> Actually I wonder how having two sensors is a good idea, anyways. There is no quorum of two, if one of the sensors is off, what's the actual angle of attack?
Not knowing the angle of attack is miles better than not knowing that you don't know the angle of attack.
There’s usually guidelines based on the criticality of the equipment and the required reliability.