Originally Posted by
Icarus2001
Your statement completely ignores the fact that if a pilot is pulling back (is there any other way to pull) on the control column and they find that it is getting heavier, then they would naturally and instinctively use rear trim (nose up) using the electric trim switch on the column, which would then inhibit MCAS operation.
Question, from an interface-design/engineering point of view, what is then the rationale for EFS? To make the control column get heavier because (assuming working AOA sensors) we are approaching stall, so the pilot then naturally and instinctively trims nose up? Really?
Subsidiary question: what is the pilot's natural and instinctive reaction to being pushed back into his/her seat by +ve g when trimming up?