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Old 14th Nov 2018, 05:33
  #1144 (permalink)  
BuzzBox
 
Join Date: Mar 2002
Location: Here & there
Posts: 743
The B737 FCOM states:

As airspeed decreases towards stall speed, the speed trim system trims the stabilizer nose down and enables trim above stickshaker AOA. With this trim schedule the pilot must pull more aft column to stall the airplane.
How does that differ from the operation of MCAS when approaching a stall? MCAS seems to be based on AOA while STS is based on IAS, but is there any other major difference, such as trim rate, duration, range of trim operation, etc? Would a pilot of a MAX aircraft who knew about MCAS handle the JT610 scenario any differently to one who did not?
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