In article . com, Denny says...

Why wouldn't it auto rotate?... The blades are no different than a
gyrocopter's fixed blades and they autorotate...
I can confidently predict that like Moeller's Skycar they will still be
pitching it to "investors" for years to come... PT Barnum was a
genius..

The gyrocopter is always in a state of autorotation, that is the flow goes thru
the rotor from the bottom to the top.A helicopter goes from the top thru the
bottom .So in order to change flow direction and autorotate the pitch must be
changed . In a fix pitch design this cant be done .So in the event of an engine
failure the royor(s) will slow down and lose lift.

Chuck (ex Scheutzow Helicopter employee) S