Hi
I'm getting very active in PPrune, lately…
In a case of, say, a flaps jammed situation, VMAX as displayed in the PFD is not correct. It reflects flaps lever position associated VMAX, Right?
Still, we can rely on the OVERSPEED warning because it is triggered at the correct actual VMO/MMO plus. Good.
Now, my question is: What happens if you deliberately fly (A/THR OFF) into PFD's VMAX and beyond? Will the AP trip off and/or the High Speed Protection kick in and pitch up to keep the airplane within the envelope (wrongly overriding me)? Or will it just fly until the real overspeed takes place and then the protection kicks in?
I can't find in the FCOMs which input the flight control computers (ELAC, PRIM) are using for that protection (the one that the PFD uses or the one that the OVERSPEED warning uses?) So I guess only an empirical experiment can solve my doubt, and It is till some time till my next sim.
Or some wise airman around here
can enlighten me
Thank you