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the rear end of a vessel (boat).
The shape of the underwater part of the stern affects the resistance of the water to the movement of the vessel, maneuverability, and the working conditions of the driving mechanism, and the configuration of the above-water part determines the accommodation of the ship gear (steering, mooring, and towing equipment) and ship compartments (quarters). The cruiser stern is the most common for modern oceangoing transport vessels; the ice-breaker stern is a type of cruiser stern. The ordinary stern with a counter (stern overhang) is most often found on old ocean and river vessels; the transom stern is used on trailer ships, container ships, trawlers, and the like. The underwater part of the stern of modern seagoing vessels is usually made with an open sternpost.