Originally Posted by
Maverick2167
Hello,
looking for insight on the following flight control protection/Laws on the A320
1. with the auto thrust active and during cruise ,if we bring back the thrust lever all the way to IDLE, at some point of time will the HIGH AOA protection kick in- including alpha floor ?
2. Same scenario as 01, but with Autothrust Inoperative (disconnected) will the High AOA protection kick in, and will the speed remain at Alpha prot?
3. Autopilot limitation is 160ft AGL for ILS CAT 1 and 250ft AGL for the NON-precision approach, I understand that if we do not deactivate the pilot at the mentioned threshold, the FMA will display "Disconnect AP for Landing" will the vertical and lateral mode also revert to basic mode i.e. HDG & VS ?
Thanks
1, 2: My
understanding is Alpha Protection is
available if Auto Thrust is in a functional/operative state (not "broken" due to maintenance issue). Auto Thrust does not need to be ACTIVE or ENGAGED at the time
3: I have not seen that FMA, I always get AP off by 500 radar altitude at the latest.
Other folks could probably elaborate better than me.