Originally Posted by Jabawocky
however is there a critical hover height and speed...
No more am I a fling-wing driver, but I believe the area in their performance envelope to which you refer is that known colloquially as the "
Dead-Man's Curve". For a definition of same you will
have to refer the query to someone that knows rotary wing PofF... or refer
here or
here for the Internet story thus far -nothing flash, just the 1st couple of links thrown up by a Google search.