3 ms·
Except that AoA vanes are not perfect and are speed sensitive. > From the A330/A340 FCTM (Flight Crew Training Manual) section 8.110.4: > The ADRs provide a n
by thatswrong0 3y ago
Except that AoA vanes are not perfect and are speed sensitive.
> From the A330/A340 FCTM (Flight Crew Training Manual) section 8.110.4:
> The ADRs provide a number of outputs to many systems and a blockage of the pitot and/or static systems may also lead to the following:
> …
> Alpha floor activation (because AOA outputs from the sensors are corrected by speed inputs)
From what I can tell, these systems are all pretty complicated and have undergone significant real world testing to ensure that the expected protections actually work, assuming the flight computer is receiving accurate data. Which is precisely why they have Alternate Laws - if they can’t guarantee that these protections can work, then they won’t.