Autorotation, Ground Effect and Settling w/ Power
A question regarding a full autorotation to the ground.
The flare during a landing reduces the forward airspeed and, with the help of ground effect, reduces the rate of descent.
The initial rate of descent was the craft's Autorotative rate of descent.
Would it therefore be correct to believe that at landing this craft has the advantage of ground effect, but it also has the simultaneous disadvantage of attempting to pass through the vortex ring state, in the reverse direction?
Thanks,
Dave