[SV650rules]

Originally Posted by Talking Heads

Saying that pilots don't know how to fly is just silly.
They all know how, but some are far better at it than others.

Stall warning/control sensors sense the angle at which air meets the airframe.
They usually have vanes projecting out from the aircraft either on the fuselage or on the leading edge of the wing.

I used to watch quite a few air crash documentaries and it turns out that a good number of planes that crash are perfectly airworthy but once the autopilot disconnects itself because it does not have all the inputs it needs then basic flying skills are sadly lacking... I went for a flying lesson a few years ago and the instructor was fairly young ( about 35 ) and although he was qualified to fly heavies he much preferred light planes and that is why he was teaching at a small airfield.