Nautical Glossary (OSS)

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The following glossary will familiarize Dungeon Masters with the basic terminology involved in sailing and naval combat. A working knowledge of such terms is necessary, as they are essential to many of the rules found within this book. In addition, the correct use of these terms by the DM during a campaign or adventure adds to the level of realism and excitement experienced by players.
Aft: The rearward direction or portion of a ship.
Ballast: Weight carried in the bottom of a ship to improve stability.
Bow: The front of a ship.
Bowsprit: A long pole projecting from the bow of a ship.
Capstan: A mechanical winch used for handling ropes.
Draft: The minimum depth of water necessary to float a ship.
Fleet: An organized force of ships.
Freeboard: The height of a ship's side above the water.
Heel: The action of tilting over to one side.
Keel: The wooden backbone of a ship.
Knots: The measure of a ship's speed in nautical miles per hour. One nautical mile is equal to 6,080 feet. A ship traveling at three knots is moving three nautical miles an hour.
Lanteen Sail: A triangular sail which hangs from a single yard.
Mast: A large vertical pole which supports the sail yard.
Rigging: The ropes which support and move the sails.
Rudder: The steering mechanism for ships.
Running: Sailing with the wind.
Square Sail: A rectangular sail hung from a single yard.
Stern: The back of a ship.
Sweeps: Large oars requiring two or more men to operate.
Tacking: Changing a ship's course by angling into the wind.
Yard: The horizontal pole on which the sail is hung.