Originally Posted by
Rotorbee
I don't get it, what ch really wants to find out. Could it be, that he is looking for something similar like an accelerated stall in a FW? Well, in general, helicopters just don't do this. You would have to pull back on the cyclic in a turn and that would bleed of the speed faster then you can say gobbledygook, since there is nothing that keeps pushing forward like a propeller or jet engine. In a descending turn? I don't think so. Help me here. I can't find a combination of cyclic an collective, where one can increase the g without giving up something else. Mostly speed. Even diving and then pulling g's will not stall the rotor.
Ray Prouty wrote about this very thing. While it might be theoretically possible, you can't really stall a rotor disk because, as you said, the aircraft just slows down. But that doesn't mean that the individual blades can't stall.
A full stall of the rotor must be avoided at all cost. First sign will be a decay of the rotor RPM and if no action is taken, followed by an automatic folding of the blades upwards. This leads, depending on altitude, to a prolonged near death experience which will end in most cases in a full death experience.
True that! I don't believe that I have ever read anything on this forum that has made me (inappropriately) laugh out loud - until now. Well done, Rotorbee!