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Old 18th Nov 2018, 17:24
  #1388 (permalink)  
Join Date: Jul 2008
Location: Dubai
Posts: 61
Originally Posted by gearlever View Post
Did MCAS replace STS on the max or is it another feature besides STS?
Both STS and MCAS are present in B737 MAX. STS is for speed stability of the aircraft as the Center of Pressure moves as aircraft speed increases. This moves the stab for an aircraft Nose Up direction.This operates on every flight as aircraft accelerates.
MCAS operates only if the AoA of aircraft is sensed as high and this moves the Stab for aircraft Nose down trim.
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