thanks for that Jock, this topic of conversation arose over a few beers one night and there were various opinions about what you could and couldn't do.
A colleague was convinced that etops didn't apply to non scheduled traffic simply because Net Jets advertised direct one way trips to the Caribbean. I always thought that they could do that because they use 'N' reg. G V. However I understand they are now doing this flight in the CS (Portuguese?) reg. aircraft. So obviously there is either a loophole or no need for non schedule traffic to have ETOPS?
Surely if NetJets can do it other operators of the same aircraft must be doing it too? Or am I missing the point?