Originally Posted by
crewmeal
I'm not a pilot in any shape or form but just watched Simon Calder on Sky News tell the world about what the software should do. So why didn't the software cut in on this demo flight at Farnborough or for that matter on the Lion Air and Ethopian flights?
737 Max demo
That example illustrates the difference between pitch and AOA. If an aircraft has sufficient speed, it can enter a very high pitch angle maneuver such as this one, while bleeding off speed, and then soon leveling off. At all points in this trajectory the AOA is within the normal range, and at no time is the aircraft approaching a stall. Neither stick shaker nor MCAS will activate, provided the pilot lowers the nose before the speed drops too much.