Yawl

A yawl (from Dutch jol) is a two-masted sailing craft similar to a sloop or cutter but with an additional mast (mizzenmast or mizzen mast) located well aft of the main mast, often right on the transom, specifically aft of the rudder post. (A vessel with mizzenmast located forward of the rudderpost is called a ketch; see below: Yawl versus ketch.) The mizzen sail (smaller than the mainsail) is hoisted on the mizzen mast.