On Fri, 3 Apr 2009 19:37:33 -0600, "SteveB"
wrote:

What's the difference between a boat and a ship?

Mostly size.

Traditionally boats are carried on the deck of a ship, or at least are
small enough to do so. 100 feet is a boat: 200+ is a ship. These
semisubmersibles that can carry a full sized ship, the Cole comes to
mind, blur the original distinction. Also traditionally, the crews of
US subs call their ships " boats ".The fact that the Electric Boat
Company built so many subs may have something to do with it, I don't
really know.

Casady