Thanks for the great topic Dave, and the user friendly explanation Nick (or is it "Nickii" <img src="wink.gif" border="0"> ?). Always wondered about the "Sikorsky shuffle". I thought it was to do with main rotor vorticey interacting with the tail rotor at that speed rather than the extra Nper vibration that most aircraft feel going through translational. The UH-60 certainly got that extra Nper feel, but it "shuffled" in yaw as well - or is my memory suspect?
Hovering in the wings: You have used my favourite word: irregardless. You said: "Either way, irrigardlesss of method of excitation".
Irrigardless. Does that mean:
"without regard to"
"without without regard to"
"without regardless to", or
"with regard to" (due to resolving the double negative)?
Sorry, at my grammatical level I cannot point ANY fingers, but I couldn't resist my favourite word.
Lu: I saw the Chopper film too, and it was mounted on a UH-1H in flight. No chopper pilot I know quit flying because of it, but it did give us a great story to impress the bar fraus with!!