Dhow

A dhow was a small sailing ship with a single, triangular sail.

Description
They were commonly used in Calimshan by fishermen. Dhows are generally too small to be used as military vessels.

In Zakhara
All ships of Zakharan build were dhows - indeed "dhow" was the Midani term for ship. Various sizes of dhows, from 40 to 200 feet in length were employed in the Land of Fate. Five distinct types were recognized: The baghla, the barijah, the boom, the sambuk and the zaruq (or zarug).