Originally Posted by
safetypee
There may be clues in the references to the integrated MCAS within the exiting STS (NG).
you asked for it, so let's uncover the next feature:
Stall identification and control is enhanced by the yaw damper, the Elevator Feel
Shift (EFS) module and the speed trim system. These three systems work
together to help the pilot identify and prevent further movement into a stall
condition.
(...)
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 aircraft. With the
column aft, the amount of column force increases with the onset of EFS.
Oh, look at this (but not special to the Stall Identification feature):
Conditions for speed trim operation are:
...
5 seconds following release of TRIM switches.
...
Autopilot not engaged.
We're talking of the NG! MCAS 0.5? But at least they told the pilots back then.