Sas
I was once on the UK run Robbo safety course, we talked about autos and energy in the rotors, I asked if it was better to overspeed the rotors at the last minute to gain energy near to the ground, would they fall off I asked, no but the tail will come off first... Apparenetly the R44 (which I was learning on then before the 47) only has one bearing half way down the tail, the shaft tends to "whip" about at speeds other than 100% RRPM and can whip about so much at higher speeds that it can detatch from the bearing and cut the tail boom off. I'm not too convinced my self, think I would still go for the highest RRPM to gain the most energy for the last few feet - after all in the woods a overspeed on the engine/gearbox is the least of your worries...
The examiner that did my initial LP Check on the 47 said much the same as the article above about landing in trees, "come down on the tail first, else the tail and engine will come down on you"
Kev.