- Jul 18, 2008
The issue with the 737 Max is the size of the engine and the fact that the rest of the plane is effectively a bog standard 737. They had to mount the engine further forward on the wing and slightly higher to get the right ground clearance which creates the different center of gravity and aerodynamics. The anti-stall software is to counter the extra lift when banking at slow speed which creates the stall I believe.As I understand, no. Only on the 737 Max. Reason being the new CFM engines installed on it creates their own lift, and this can cause the nose to lift higher than intended and so, to counter this, Boeing came up with MCAS to neutralize that effect from the engines. This is a issue only on the 737 Max.
Other airliners including Airbus and Embraer and Bombardier have stall warning systems where they shake the stick pretty violently when a potential stall situation is detected by avionics.
I think Boeing are partly right when they say that standard emergency recovery procedures would have prevented both crashes. Given that the Lion air plane had behaved in the same way just the flight before the ill-fated one and the pilots managed to do a recovery procedure of flipping the auto off and trimming the tail wing manually using the cranks / buttons on the yoke, it makes one wonder why the other pilots didn't follow the same procedure. That doesn't excuse Boeing for the oversight that people should have been told of the changes.