Originally Posted by
safetypee
td #1815
So if the thrust has not changed and the revised engine mount might not contribute a significant pitching moment, then why introduce MCAS. Perhaps higher engine wt and changed location - the cg effect messed with the long stab, particularly approaching the stall; thus ‘augmentation’ was required. If this is not the issue, then the MAX handling would be essentially the same as previous models.
Or did someone think that MCAS was a good idea given previous accident history.
I only know that the max thrust didn't change significantly on the MAX (no pun intended) - others have postulated that the positioning and size (diameter)/weight of the engine made things worse but I'm not in a position to comment. I wasn't close enough to the MAX program to know what drove the requirement for MCAS - my involvement on the MAX was basically limited to participating in some propulsion design reviews.
All that being said, my educated guess is that your comment about it being '
a good idea given previous accident history' is probably pretty close to the mark.