Originally Posted by Nigel
To be precise, it does not pitch up to prevent overspeed, but minimise the extent when it has oversped. First the AP disconnects, then further into overspeed it pitches up a small amount (which you can override) until eventually even full forward stick will not counteract it. It does not reduce power - albeit if ATHR is on, that should have selected idle.
Say what?
Back to AF447 and the THS being full nose up. If the pilot would have just inputed a full nose down on the sidestick, wouldn’t the THS trimmed nose down too?
Originally Posted by Nigel
Unless that would have resulted in an overspeed situation, and hence the system would not have allowed it, yes. So maybe it would have required to throttle down or use the speed brake until the system would have accepted this input.
Overspeed? Correct me if I'm wrong, but when the sidestick was pushed forward the speed increased to above 60KIAS and then the Stall Warning came back on. What sort of feedback message does that send?
Autotrim when handflying is bad news; nice and geeky when all is well but precisely what you don't want when things go pear-shaped. Either you're fully flying it ie trimming as well or the AP is in.