TC
Wouldn't you be talking about total rotor stall rather than VRS then?
I am no aerodynamics guru but doesn't VRS by definition still require the rotor to be creating downwash which is then 'recirculated'?
If it was VRS couldn't you recover by entering autorotation and removing all downwash? Or is the ROD so huge that the angle of attack on the blades with no pitch angle will still be beyond the stalling angle?
I have had ROD's well beyond 2000fpm on the R22, no amount of power will arrest it, and recovered by entering autorotation and then getting airspeed. Entering autorotation will stabilise the aircraft, give you back more cyclic control making it easier to recover airspeed. And this was in the training environment by the way.
MOSTAFA
In my opinion, no amount of discussion can replace the experience of it and recovery (with regard to training) whether its incipient VRS or not. Surely rotary flight training must involve aerodynamic recovery of the wing, just like stalls in fixed wings?