FWIW, I've understood 'settling with power' to be more of a reference to situations such as occur with the SA365 and similar helicopters, where the fixed collective stop prevents further power application, even when power is available, and ROD exceeds the pitch stop's ability to slow the beast down.. .. .The Victoria PAW had a prime example early in their ownership of their first 365C, which finished up punching the stbd oleo through the floor due to the hard landing. Power to slow the ROD was available, but couldn't be used because the collective was hard against the pitch stop.. .. .I had a 'firm' landing due to the same effect, plenty of Tq unused, but not available due to the pitch stop. In my case, I was following a practised approach for a film shot, which went wrong when we increased the AUW by 200kg with the actors on board, and power required exceeded that which the pitch stop would let me use. Absolutely no doubt in my mind that we were in controlled flight, but the artificial limit imposed by the 365C's design moved the goalposts <img border="0" title="" alt="[Frown]" src="frown.gif" /> . .. .Quite different to Vortex Ring, IMHO.