Originally Posted by chrisN
the “system” should know enough that it then stalled and stayed stalled, even when speed fell below 60 (it thought).
I wonder if the system knows enough. It is latched in Alternate law because it doesn't trust airspeed anymore.
Can it really trust AoA (one of the three is not functioning properly)? I would like to understand why, when the system reconfigures to Alternate law, the High-AoA protection reconfigures from an AoA reference to an airspeed reference. Is that because it doesn't trust AoA? Finally, the AoA value is zero when IAS<60kt.
The system also 'knows' attitude and vertical speed. Is that enough?