Originally Posted by AZR
Is that an "Airbus" design or an "Industry" design, i.e. same situation or comparable airliners (Boeings, Bombardier, Embraer...) ?
This is, I think, a question that was never answered.
It is not a simple question to answer, because it does depend not only on the 'cutoff airspeed', but also on the behaviour of the airspeed measuring system at high angles of attack. The actual airspeed in AF447 probably never went below 100 kCAS. The indicated airspeed went below 60 kt and even to negative values because at extreme AoA the pressures from which it is derived differed so much from the true static and total pressures. That is hardly 'by design', and other airliners may well be different in that respect.