On Mon, 20 Jul 2009 18:49:18 -0600, "SteveB"
wrote:

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

If you can pick it up with the cranes on a small freighter and carry
it as deck cargo, it is definitely a boat. If it is intended to be a
tender for a ship or large boat, and is launched and retrieved with
the usual davits or crane, it is a boat. Seventy five feet and fifty
tons is easily handled by most any crane equipped freighter. It is
possible to carry a battleship around, slowly, with a floating
drydock, but that doesn't make it a boat.

Casady