Well the spreadsheet certainly makes you think... I wouldn't have thought to make it if I wasn't reading through this thread.
A little background, I've got about 4000 hours and about 700 longline mostly in BHT205/210, AS350 and 369/500. In any type of normal flying I have never had any issues with VRS. But longlining in mountainous terrain has definitely givin me a few thoughful moments. I think with that experience I have a pretty good feel/sense for when it's an issue and I have to agree that I don't think it's near as big an issue as many instructors teach, and yes SWP without VRS is a more common problem. But I have to say that mountain longlining really makes me fly more respectfully regarding VRS or SWP than when I'm doing any other type of mission.
Last edited by helisphere; 8th Feb 2011 at 03:24.