my point exactly - in a light aircraft with a big rotor, the downwash speed is much slower as you need far less power to hover. Therefore much easier to get into VRS.
It's not about the size and gross weight of the helicopter, it is disc loading which is AUM vs size of the rotor.
I am just passing on information from the likes of Mr Lappos who generally seems to know his way round a helicopter
If you don't like or believe it, that is up to you but that doesn't make it not true.
I have great respect for Nick and don't for a minute think I know more than he does about aerodynamics, but all I'm saying is that the S61 can and does get into VRS with WAY less than 1000 ROD than you suggested, that is from personal experience and I will not attempt to explain that in aerodynamical terms, only underwear changing ones
