Nautical Term: COG
Definition of COG
Course Over Ground, often abbreviated as COG, refers to the true direction a vessel is traveling, relative to its actual heading. For instance, if a ship is sailing due west but its compass is indicating a northerly heading, then the ship’s COG would be due west. In a single paragraph, you could use the term COG to describe the true direction of a ship’s movement, despite its compass heading. For example, ‘Despite the compass indicating a westerly heading, the ship’s true Course Over Ground was easterly.’
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