Boeing Company (BA)

[Jetmek_03052]

Just researched and found out many things about MCAS that I wasn’t aware of.

You were quite right. It wasn’t really designed as an anti-stall device.

It was designed as a “pilot-feel” device, to make it feel like the other “Next Generation” classic variants, with the CFM56 engines.

It was designed to make the MAX flying characteristics “feel” like previous models to the pilot.

The incorporation of MCAS would have the extra benefit of avoiding a need for different type rating in the aircraft and therefore more training for the pilot group.

But, the need for the system was driven by the fact that the higher and more forward position of the new LEAP engines made the aircraft more vulnerable to stall conditions in high angle of attack/lower airspeed conditions.

This is why the CEO originally called it an “anti-stall” system subsequent to the crashes.


https://en.m.wikipedia.org/wiki/Maneuvering_Characteristics_Augmentation_System