Kermit 180,
There used to be a long-standing Australian Aeronautical Information Circular regarding wake turbulence which you may have seen, which had some information regarding helicopters as well as fixed wing.
It was removed some time ago, but probably became an advisory publication.
Nick Lappos' post hits the nail on the head pretty well anyway.
By the way, I like the way you started your post - 'Greetings Rotorheads'; sounds a little like something from a Gary Larson cartoon where the alien greets the earthlings (or should that be the other way around?)
