Ketch, sloop
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Sorry, but a sloop has only one mast, a ketch only carries two.
Brigs, barques, brigantines, carracks and square-riggers are different types of traditionally-rigged three-masted ships.
Caravel.
caravel
A Xebec
Xebec
It is a comparatively large three to four masted sailing vessel created by the Portugese in the 15th Century that was the primary vessel used in sea exploration. It was a square rigged ship with a rounded stern, high aftercastle of the type used by Columbus and Magellan.
They would have been called a "ship of the line".
A galleon is a large, three-masted, square-rigged sailing ship with at least two decks.
A barque, a caravel, brig, a carrack, a clipper, a corvette, a frigate. These are some of the types of sailing vessels that can have three masts
The USS Merrimack was 275 feet long. It was a three masted sailing ship that was fitted for steam power.
Schooners and clippers have three or more masts...
A barque a sailing ship, typically with three masts, in which the foremast and mainmast are square-rigged and the mizzenmast is rigged fore-and-aft.
1157-1199 was when the three masted ship was invented