Originally Posted by
gums
Really good pilots will KNOW when something is not right. They might detect a different noise from the motors. They might feel a vibration that wasn't there a second ago. In other words, they are tuned to the aircraft, regardless of the flight control implementation.
Yeah, but you can't design airliner safety concepts around the assumption that the pilots will be "really good". Average ability must be assumed, alongside failsafes to catch pilots having a "below average" moment.
But seems to me that the 'bus ignores the AoA when the "system" determines that airspeed is invalid, or speed too low.
It doesn't "ignore" AoA during UAS, otherwise Stall Warning wouldn't work. It can't use AoA data for protections during UAS because the redundancy calculations are defeated. Low airspeed is a tough one. As was the case a while back, I'm prepared to bet that similar cut-off points are used on most modern airliners, not just Airbii.