Originally Posted by
VinRouge
Does anyone know whether the 737 Max MCAS is an aerodynamic crutch to a design issue discovered at flight test or was it designed in from the off to allow for increased aerodynamic/fuel efficiency reasons?
I don't know at what stage MCAS was added to the design, but it has nothing to do with increased efficiency. It's supposed to only operate on the fringes of flight envelope, near stall. Ideally it would never activate. So there's nothing to be gained by it.