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tanker 
Ship with large reservoirs for transporting liquid petroleum products.
davit 
Winch that manipulates the anchors.
rudder 
Submerged component that pivots on a vertical axle and is used to steer the boat.
propeller 
Device with blades integrated onto a shaft that is driven by the engine to provide thrust and thus impel the ship.
radar mast 
Mast with a radio-wave detection device (radar set) used to prevent collisions when visibility is reduced.
guardrail 
Railing along a ship’s deck that protects crew from falling overboard.
separator 
Device that removes any water that might contaminate the oil tanks.
radio antenna 
Metal conductor that emits and receives radio waves for communications.
mooring winch 
Motorized spool around which a mooring cable is wound.
crossover cargo deck line 
Thick pipe that runs transversally and is used to fill and empty the tanks.
bitt 
Metal cylindrical fittings attached to the deck for fastening mooring ropes and tow lines.
air relief valve 
Device that allows air to escape as oil fills the tanks to displace it.
tank hatch cover 
Watertight door that provides access to a tank.
foremast 
Mast located near the bow of the deck that supports the navigation lights.
main deck 
Flat top that seals the hull and protects the cargo; it provides space for crew to circulate and for auxiliary equipment.
wall side 
Vertical part of the hull below the water line.
foam monitor 
Pressurized mechanism that produces foam for extinguishing fires.
derrick mast 
Short thick mast that supports the derrick.
derrick 
Device with pulleys that is mounted on a pivot for handling loads.
bulb 
Bulge in the bottom part of the stem that reduces the hull’s water resistance.