In my mind for powered boats the 3 most likely things to cause a sudden end to an off shore trip, short or long, is fuel, and ummm, oh yeah, fuel, and lastly . . . FUEL.... Taking a marina queen offshore, say 80 miles to Bermuda, is sure to find the gunk that has been quietly lurking in the tanks for the past decade... Getting fuel in a foreign port is another likely source (See the current Passagemaker) Springing a fitting leak and getting bubbles is a frequent problem... And on, and on... If there were a way to calculate this I would guess that fuel problems would be more than half the percentage of the three top causes - whatever the other two are... denny --------------------------------- No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started.