The forward-most part of a vessel's hull, designed to reduce the resistance of the hull cutting through water. Bow shape varies by vessel type and affects seakeeping and fuel efficiency.
Category: Navigation & Seamanship
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AsternBehind the vessel, or moving in a backward direction.BeamThe width of a vessel at its widest point, measured at the midship section.BearingThe horizontal direction of one point from another, measured clockwise from true north, magnetic north, or the heading of a vessel.Chart DatumThe reference level from which depths on a nautical chart are measured, typically the lowest astronomical tide (LAT).Compass RoseA graduated circle printed on nautical charts showing both true and magnetic north, used to determine bearings and courses.CourseThe intended horizontal direction of travel measured as an angle from north.
Back to DictionaryEntry updated May 2026