> These engines moving made the plane more vulnerable to a stall situation.
I don't think this is correct. A lot is being made about the engine move with regard to aerodynamic behavior, but it doesn't seem at all outside of the bounds of what is considered standard. Pilots report that a similar 'light stick feel' at high AoA is already present in aircraft like the 757.
It's not that the aerodynamic change was worse or better, it's simply that it was a change at all. MCAS was there to satisfy the type rating. MCAS is not anti-stall.
The crucial mistake appears to be the extreme failure mode of the system; it is permitted to input high stabilizer trim angles without limit. Without any kind of restriction, the failure goes from annoying (pull up on flight stick + fiddle with stab control until you solve it) to the deadly crashes we've seen where pilots are in extremely tricky situations.
The fix could be as simple as making MCAS cutout in the case of an AoA disagree (no real hardware changes here) as well as limiting the input of extreme trim angles.
I don't think this is correct. A lot is being made about the engine move with regard to aerodynamic behavior, but it doesn't seem at all outside of the bounds of what is considered standard. Pilots report that a similar 'light stick feel' at high AoA is already present in aircraft like the 757.
It's not that the aerodynamic change was worse or better, it's simply that it was a change at all. MCAS was there to satisfy the type rating. MCAS is not anti-stall.
The crucial mistake appears to be the extreme failure mode of the system; it is permitted to input high stabilizer trim angles without limit. Without any kind of restriction, the failure goes from annoying (pull up on flight stick + fiddle with stab control until you solve it) to the deadly crashes we've seen where pilots are in extremely tricky situations.
The fix could be as simple as making MCAS cutout in the case of an AoA disagree (no real hardware changes here) as well as limiting the input of extreme trim angles.