Originally Posted by Chronus
With it now comes an additional instrument, the AoA indicator wired into the whole system of automation. This piece of instrumentation did have its rightful place in the cockpit of a fighter jet, with its all moving horizontal stab, but does it really also have a place in a civil transport aircraft. Especially as a command function. After all to what is known so far about this particular event is that it was the stubborn stab that took the aircraft down despite all the crews efforts to encourage it away from its determined course.
The AoA vane (not an indicator) is not new with MCAS. All airliners use AoA vanes.