Mainesail... the name Dotsea seems awful familiar. Is this one the culprit? I don't have the high-res version handy on this 'puter.

This was taken in 2009 at what should have been a very quiet anchorage/undisclosed location in Maine. She had that Honda running all morning. While you could tell when load was higher (it got more annoying), even when it was not under load, it was quite annoying.