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Old 9th Apr 2019, 08:05
  #3709 (permalink)  
spornrad
 
Join Date: Jul 2009
Location: France
Age: 62
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Originally Posted by Rananim
We can't see the wood for the trees.
This one was just a faulty sensor(not even UAS)..
If MCAS would activate alone,any crew would simply
counter-trim and cut off its electrical supply without much thought.
But combine it with a "confusing" UAS scenario and shakers and
warnings and bingo..you get a smoking hole in the ground...
Pilots have to be trained more on these UAS scenarios before they kill again.
Aeroperu,birgenAF447 and the 2 MAXs,and others.....
Wise words. Seems to me that the entire concept of "artificial feel" and "artificial buffet" (AKA stickshaker) was envisioned many decades ago assuming pilots had stick and rudder skills ingrained and whose muscle instincts would guide them to do the right thing if their hands were provided with the correct aerodynamic, albeit artificial clues.
Today, the artificial manual feedback stuff is degrading the primary flight control ergonomics, and distracting and stressing the crew. Instead of providing clues, it may even make pilots loose the trim switch with their thumb as a result of a hydraulically shaken column with massive artificial pull on top.
MCAS could then be seen as the ultimate perversion of that concept. Abuse a secondary flight control to create artificial stick force, give it a delay of 5 s so the pilot will not intuitively get the message, and give it so much authority, that it effectively overrides the primary control.
2 ct

Last edited by spornrad; 9th Apr 2019 at 12:52.
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