Slowrotor asked "I should have asked : Will a power loss at 200ft and no airspeed result in death?
You are correct when you said "if you have speed then it really does not matter what height you are when you enter autorotation". But in that case you are not in the avoid zone of the height /velocity curve anyway".
I really don't think so although I haven't tried it. I would have thought that from 200' you could gain enough airspeed to make a reasonable touchdown out of it in the right helicopter. Bell 47/206 would be OK I think. I have certainly done vertical autos to touchdown but in a reasonable wind so I suppose you could argue they were not nil airspeed.
In any event I'm talking about an undamaged helicopter, I am confident that a quick auto from 200' would not result in death or injury.
Regards,
Chopperpilot47