I'm pretty sure I have seen the engines spooling down to avoid overspeeding the flaps maximum speed when levelling off but I guess the flaps lever was not yet set at zero. From what I understand, Let's assume you level off at 2000 feet, aircraft reach ALT* and speed target is 250kt but you don't retract the flaps. In that case the Auto thrust will automatically limit the speed to 230 kt ( VFE flaps 1 on A320) and no overspeed should occur. But in the case you retract the flaps, no more protection at VFE and if the aircraft accelerate too fast and exceed 230 kt before the flaps are at zero then you will overspeed. Am I correct?
Last edited by pineteam; 22nd Feb 2021 at 06:03.
Reason: added one sentence