PPRuNe Forums - View Single Post - Boeing 737 Manual Stabiliser Trim - an Historical Fact
Old 2nd Jan 2020, 17:55
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hans brinker
 
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Originally Posted by TURIN
From what I can gather of the Ethiopian crash, the crew did attempt this but the MCAS kicked in again. My understanding of the MCAS is that it operates faster than normal trim.
While your understanding is mostly correct, it is not complete. Yes, mcas will add AND faster than the pilots can trim using manual electric trim, but if the pilots trim mcas will stop till 5 seconds after the manual electric trim input has stopped. As long as the pilots blip the trim every 4 seconds there should be no mcas input.
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