" wings do not stall at a speed; they stall at an angle. So if AoA is uses it is to give the driver access to the prime information, not as a substitute for airspeed."
An aircraft stalls at Vs. that is a velocity, which infers angle of attack. It also infers, for practical purposes, separation of airflow? Flying can be done easily without any reported data at all, but instruments make flight ever so much safer? AF447 had no artificial horizon, as I recall, and certainly no AoA. Stalling is an event, not an indication. I thought the moderator has said it all:
"Falls in a heap if the aero plane is stalled and the pilot fails to recognize this...."
Recognition is the key to flying, and must precede any problem, "SA"....?
Instruments are important, but if they become critical to survival, something has gone very wrong....and the day UAS becomes unrecoverable, it isn't a condemnation of equipment.