Seen a video of this in a 206; here it is in a Cabri:

https://www.youtube.com/watch?v=DuAiIquEcWw

for posting something about a helicopter

Here's an outside view of an R44 doing it

https://www.youtube.com/watch?v=qttJfbVT3Fc

This is the craziest zero airspeed in the descent, truly no-flare landing I've ever seen (from 1000ft STRAIGHT DOWN)

https://www.youtube.com/watch?v=cpHMqvoD4j0&t=1s

Interesting but seems like there is several reasons this type of auto is not very useful. First of all an engine failure in flight that requires no maneuvering is exceptionally rare. Next, the rotor speed has to be clearly in the mid green to insure enough rotor inertia for the landing. Finally, there is no room for any mistake at the bottom of the auto. Rotor rpm must be good, landing spot good, and final pitch pull must be perfect.

All in all, it just seems the usefulness is overshadowed by the drawbacks.

Unless, one was flying lowe level with low airspeed and was forced to auto then this is aplicable.

Belive it or not but some of us don't  fly point A to B in a twin. ya know we use helicopters for what they were made for.

interesting.

Having had to autorotate twice I can assure you there will be no notice, there will be a conscious denial that you are in the situation (at least there was in both instances for me), an immediate need to maintain and optimize Rrpm and glide path to whatever becomes your touchdown point, and an absolute need to fly the machine any way necessary to survive.

Don't forget the backup auto, but not so fast the horizontal stabilizer setup works against maintaining a relatively flat attitude, and, start your forward movement recovery by 500 - 700' AGL.

If your AUW is notable do not expect your rotor rpm will extinguish all your ROD - you'll need some flare effect and hopefully some ground slide area in front of the machine.

Good luck.