> But at the same time that trim system is, by design, not strong enough to overpower pilot input to the other control surfaces.
No this is not true. In near stall situations for which the MCAS is designed, a full deflection of the elevators is not enough to counter the stabiliser effects. I'm not sure about the entire flight envelope, but I guarantee there are other situations where the elevator cannot counter the stabiliser.
The right way to "regain control" isn't to overpower the stabiliser by inputs to other flight control surfaces, but to disable automatic stabiliser trim and manually trim the aircraft.
No this is not true. In near stall situations for which the MCAS is designed, a full deflection of the elevators is not enough to counter the stabiliser effects. I'm not sure about the entire flight envelope, but I guarantee there are other situations where the elevator cannot counter the stabiliser.
The right way to "regain control" isn't to overpower the stabiliser by inputs to other flight control surfaces, but to disable automatic stabiliser trim and manually trim the aircraft.