Originally Posted by
RR_NDB
The use of a "voting scheme" capable to "major a/c reconfig" using identical (sub heated) not adequate Pitotīs is a direct path to PROBLEMS!
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Who can tell me why they implemented this redundancy in respect to AS measurements? I would like to understand the reason.
What other a/c does it any other way ?
The 777 has exactly the same number of identical pitots, also feeding an airdata and FBW system that can go wrong in exactly the same way (pitch-up in cruise - uncommanded in this case - losing speed to point of stall) when fed bad air data.
There's been a lot of discussion about alternatives to pitots, but none of them are ready for production or without engineering problems.
When A and B and every other mfr are doing it exactly the same way, it is probably becuase there is (as yet) no other credible alternative.