Good question. This is a 550 (Citation II). I don't see the lack of a stick shaker as being much of a detriment to safety. A properly trained and proficient Citation pilot is always so far away from the stall margins. If a pilot finds themselves in a situation where a stick shaker would activate, they are so far behind the plane that I'm not sure a stick shaker would save them at that point.
@@dabneyoffermein595 , yes, N66BK is a strange one indeed. Without any CVR/FDR we will probably never know with certainty what happened. It could have been a medical event, spatial disorientation, instrument failure, or any number of things.
@@citationpro -- Yea, that one is hard to figure. I know he flunked out of Atlanta's FlightSafety International for Citation certification and then paid someone local in Nashville to quality him or "type-rate" him on the accident Citation. FAA has since suspended the gentlemen who did that.