S-92 Power Off Landing
Nick is almost correct re the procedure: Power Levers stay back, out of governing, but forward of Idle. The reason is simple: if the flare doesn't look good, one wants power in a hurry and doesn't want to wait for the spin-up time from Idle.
Actually we made two landings that day. The first one came out Ok, but the telemetry boys noticed that there was a tweak of one of the power levers and a bit of torque got to one of the engines. Bob Spaulding had his hand on the power levers and was just keeping them in the mid to low 90's Np-wise. The amount of torque that we obtained out of one of the engines was tiny: a percent or two, but rather than have a very complicated meeting with the certification authorities, we decided on the spot to do another landing, went around the pattern and did the one on the video.
I like the comment re the EGPWS! Knowing where the tail and of course the tail rotor is, that is to say, their clearance from the ground plane, is tougher as the size, i.e., length, of the helicopter goes up. For the practice power recovery autorotations that just preceded the actual landings, we had an observer with a radio on the grass next to the runway who gave us a visual ground clearance value for each flare. After a few, one got a feel for where the back end was. Well, for the most part anyway.