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FMTC Nautical Terms

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Term
Definition
Abaft   show
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Abaft the beam   show
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Abandon ship   show
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show when the force of the wind lessens.  
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show Directly off the side of the boat. At right angles to the fore and aft line  
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show On or in any vessel or boat. On board  
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show Side by side  
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show Floating free without propulsion. Floating on the tide unsecured.  
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show Towards, at, or near the stern.  
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show The state of a vessel part which is touching the bottom. Held fast on the bottom.  
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show Forward of, Advance. In the direction of the bows.  
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show The general nautical hailing term to attract attention.  
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show the letter "A" in the phonetic alphabet  
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Amidships   show
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Anchor   show
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show The place where a boat, or boats, may anchor  
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show The report from the bow that the anchor has been hove out of the ground, is off the bottom with its weight taken by the chain and rode.  
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Annual variation   show
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show Paint on the bottom of a boat that reduces marine growth.  
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Astern   show
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show A vessel riding by its anchor.  
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show Aids To Navigation  
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Avast   show
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Aweigh   show
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show The verbal acceptance of an order  
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show The keep of a boat.  
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show Used to prevent the ends of a rope from unlaying  
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Bail   show
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Ballast   show
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show An area of the seabed that raised above the surrounding ground  
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Bar   show
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show Instrument that measures atmospheric pressure which determines changes of weather  
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show Close openings and secure gear  
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Battery   show
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Beached   show
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Beacon   show
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Beam   show
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show A sea rolling in at right angles to the vessels course.  
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show A wind blowing in at right angles to the vessels course  
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Beamy   show
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Bearing   show
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Beaufort wind scale   show
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Belay   show
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Bell buoy   show
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Below   show
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show Any place in a harbor allotted for the accommodation of a vessel. Place a vessel in any allotted position. A sleeping space or specified cabin in any vessel.  
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show Lowest area inside the boat. Absolute nonsense  
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show Canvas canopy  
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Binnacle   show
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Blocks   show
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show Fans that remove dangerous vapors from the engine compartment  
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Boathook   show
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Boom   show
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show Front of the boat  
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Bow Eye   show
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show Rope that attaches the front of the boat to a dock  
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Bowline   show
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Bowsprit   show
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Bravo   show
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Breakwater   show
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show Cockpit (control station)  
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show Broadside to the waves  
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Broad On/Off   show
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Bulkhead   show
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show Floating navigation aids  
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Buoyancy   show
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show Flag identifying ownership or membership  
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show Green cylindrical buoy  
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Capsize   show
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show North, South, East, West  
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show Unfasten for departure  
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Catamaran   show
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show Any substance used for sealing between the seams of planking to make them watertight  
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show Turbulence caused by a propeller blade spinning too fast and creative low-pressure bubbles  
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show Angle conversion process from Compass to True Direction (+East)  
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show True direction as opposed to Magnetic or Compass  
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show Rub or wear away by constant use or friction  
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Chafing gear   show
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show Shop where nautical gear is sold  
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show The deepest part of a passage through which the main current flows.  
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show the letter "C" in the phonetic alphabet  
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Chart   show
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show Juncture of the side and the bottom of boat  
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Chop   show
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show Fitting with arms used to fasten lines  
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CO Monitor   show
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Cocked hat   show
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show Small line used for many handy purposes, such as lacings, ornamental knots, quick tie down of small items...etc.  
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show Course Over Ground, the course in the water adjusted for current and wind  
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Combined Seas   show
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Common whipping   show
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show Entrance between the deck and the cabin  
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show Direction finding instrument using the Earth's magnetic field  
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Compass bearing   show
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show A graduated circle printed on a chart for use as a reference for showing true and magnetic north  
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Complain   show
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show A bearing that remains the same, even though the ship is moving; If of another ship, it indicates a collision course  
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Course   show
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Cowl   show
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show Wave top  
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Cross bearings   show
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show A small cabin in the front of a boat  
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Current   show
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Danforth   show
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Davit   show
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Davy Jones   show
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Davy Jones locker   show
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Dayboard   show
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Dead calm   show
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show A contraction of deduced reckoning, being the estimated position of a ship based on time, speed, and distance calculations as opposed to plotting an observed position  
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show The minimum speed possible to retain steerageway  
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Deck   show
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Delta   show
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Deviation   show
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Dinghy   show
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Direction   show
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Displacement   show
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Distress   show
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show An instrument with two movable points, used in chart work  
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Dock   show
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show Boat registered with the USCG instead of a state  
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Dodger   show
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show A clip used for closing watertight door or hatches  
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show Depth of boat below waterline  
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show Removal of accumulated runoff in waterways  
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Drift   show
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show Legal or illegal release of garbage into the water  
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show Slacken a rope gradually. Loosing any tight fitting  
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Easting   show
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show The letter "E" in the phonetic alphabet  
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Eddy   show
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show The distinguishing flag used to indicate nationality, usually flown at or near the stern  
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show The shape of the forepart of a vessel  
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show The position on a chart at which a vessel may be estimated to be at any time after allowances have been made for ides, winds, and courses laid off  
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show Emergency Position Indicating Radio Beaconis a distress beacon used by mariners worldwide to alert Search and Rescue (SAR) forces that they are in distress.  
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show An imaginary circle around the middle of the earth. Zero degrees latitude  
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show Upright. Without a list. Drawing a similar depth of water fore and aft.  
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show Drop back. Reduce speed and get astern of another vessel  
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Fathom   show
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Fenders   show
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Fetch   show
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show to ascertain the position of the boat by the intersection of any two or more bearings taken at the same time  
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show Backfire Flame control devices requires on gasoline engines  
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show A pyrotechnic distress signal. The curve of the freeboard from the bows, upward and outward, providing additional rising surface to oncoming waves.  
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Fleur De Lys   show
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Flood Tide   show
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show Goods lost by shipwreck, or anything that has gone overboard and is later found floating at sea  
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Fluke   show
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Flying bridge   show
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show The phantom sailing ship that traditionally haunts the seas off the Cape of Good Hope  
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Fog   show
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Fog horn   show
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Following Sea   show
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Fore   show
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Foul   show
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show The term used when the anchor rode is entangled around the flukes of an anchor  
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Founder   show
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Fox-trot   show
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Freeboard   show
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show when the wind increases in strength  
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From stem to stern   show
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show Weather boundaries  
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show A strong wind between a stiff breeze and a hurricane  
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show Kitchen  
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show Walkway between a boat and the dock  
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Gear   show
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Generator   show
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Ghosting   show
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Gimbals   show
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show A vessel, whose duty it is to keep clear of another by taking necessary action  
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show The letter "G" in the phonetic alphabet  
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GPS   show
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show Anchoring equipment  
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show Juncture of the top and the side of boat  
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show Call to another vessel  
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show The mean level of the sea during springs or neaps; it is therefore a constant factor  
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show Fire extinguishing material using in engine compartments  
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Halyard   show
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show An area of water partially enclosed  
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Hard chine   show
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show Opening in deck to the area below  
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show Pull on a rope.  
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Hawespipe   show
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show An inlet from a coastline where ships may anchor and shelter  
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Head   show
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show Waves approaching from the front of the boat  
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Heading   show
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show A vessel is said to make headway when she advances, bows first, and begins to make way  
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show Vertical motion of the boat due to waves A command to lift or pull together  
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show Stop, trim sails, or work the engine so as to keep the vessel almost stationery.  
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Heel   show
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Helm   show
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High tide   show
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Hitch   show
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Hold   show
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show Storage tank for sewage  
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Holidays   show
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show The anchor  
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Hotel   show
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Hove to   show
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Hull   show
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show Said of a vessel beyond the horizon, with only its masts in view  
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show Inability to maintain sufficiently warm body temperature  
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India   show
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show Narrow waterway from the ocean to an inland bay  
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show A line drawn to link areas of equal barometric pressure  
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show Goods thrown overboard to lighten a vessel  
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show Structure projecting out from the shore  
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Jib   show
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show Sailing maneuver with the stern into the wind  
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Jonah   show
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Juliet   show
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Jury rig   show
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Keel   show
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Killick   show
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show The letter "K" in the phonetic alphabet  
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Knot   show
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show Pitch and roll in heavy seas, show signs of working  
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Lading   show
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Laid up   show
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Landfall   show
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Landlubber   show
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show A conspicuous spot onshore used as a navigational aid  
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Lanyard   show
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show System of red and green buoys that mark the edges of navigable channels  
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show Degrees :Minutes:Seconds (0-90) North/South of the Equator  
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Lay to   show
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show The shore facing the lee side of a ship, being that on to which the wind would driver her if she were unable to make an offing  
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show Downwind side, sheltered from the wind.  
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Let fly   show
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show the letter "L" in the phonetic alphabet  
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show Rope  
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show Continuous lean to one side  
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LOA   show
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Log   show
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show Degrees:Minutes:Seconds (0-180) East/West of the Greenwich Meridian  
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Lookout   show
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Mackerel sky   show
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show The bearing of an object in relation to the magnetic compass  
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show A ships standard compass  
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Magnetic course   show
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show The northern center of the earths magnetic influence, as opposed to True North. It is approximately located at 70 degrees North and 97 degrees 30 minutes west in arctic Canada  
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Maiden voyage   show
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Make fast   show
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show to advance through the water  
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Make way   show
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show The alarm called by anyone who sees someone fall over the side into the water.  
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Mare's tails   show
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show Docking area usually with services  
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show the term embracing knotting, splicing, seizing, etc...; the art of shaping and working ropes.  
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show Vertical post on sail boats  
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Mayday   show
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Meridian   show
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show auto pilot  
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show the letter "M" in the phonetic alphabet  
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show Mean Lower Low Water, reference level used for depth measurements on nautical charts in the USA  
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show Buoy used by boats to tie up  
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show Nearly obsolete means of nautical communication using "dots" and "dashes"  
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show one minute of latitude roughly equal to 1.15 statute miles  
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show those with smaller range than spring tides; not as high, low, or rapid  
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show National Oceanic and Atmospheric Administration, reports weather and tidal information  
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show the letter "N" in the phonetic alphabet  
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show A red, even-numbered, cylindrical shaped buoy marking the right side of a channel as you return to port. Cone top  
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show A vessels position plotted on a chart from the observation of objects, as opposed to dead reckoning  
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Occulting light   show
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On the beam   show
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On the bow   show
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show On a bearing midway between the beam and the stern  
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Oscar   show
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Out of trim   show
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Outboard   show
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Overboard   show
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Overtaking vessel   show
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show The rope at the bow of a small boat for making it fast.  
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Papa   show
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Passage   show
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Pay Out   show
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Pennant   show
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show personal flotation device (life jacket)  
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show system used to identify letters in verbal communications  
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show Structure extending into the water for tying a vessel to  
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Piling   show
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Pilot   show
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show Used by pilots for meeting ships  
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show The wheel house  
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show Navigating a boat by determining position and directing movement  
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show The depression of the bows plunging into a trough in the sea The theoretical distance a propeller travels in one revolution.  
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Pitch pole   show
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Planing   show
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show Power boat that eliminates the bow wake  
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Plastic boat   show
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show There are 32 points of a compass consisting of 4 cardinals (N,S,E,W), 4 half cardinals (NE,SE,SW,NW), 8 intermediates (NNE,ENE,ESE,SSE,SSW,WSW,WNW,NNW) and 16 by points  
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Pontoon   show
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show The raised deck on the after part of a ship  
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Pooped   show
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show Left side of a vessel. A seaport, that part of any place that is made available for shipping  
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Port Tack   show
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Porthole   show
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show The god of the sea in Greek mythology  
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Positive buoyancy   show
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Pram   show
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show Typical direction of the wind at a locale  
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show the meridian which passes through greenwich, and from which longitude east or west is reckoned  
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show An area marked on a chart, where anchoring, trawling, or fishing may be forbidden by authority  
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Prolonged blast   show
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show Sideways force created by a spinning propeller  
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show Engine that runs by compressed combustion  
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Propulsion - Gasoline   show
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show An elevated tubular metal guardrail set up at the bow or stern; typically extending from the bow  
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show A seining net which can be closed like a purse  
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Quarter   show
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Quartering   show
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Quartering wind   show
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Quay   show
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Quebec   show
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Race   show
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Radar   show
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Rake   show
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show Distance away of an object The difference between the depth of water at high and low tides  
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Reach   show
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show RED buoys on the RIGHT when RETURNING from the sea  
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show to reduce sail area by folding, rolling, or tying up part of the sails. A chain of rocks lying submerged near the surface  
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show A period during which repairs, reconstruction, and replacements are effected  
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show A program of sailing and rowing races arranged by an authority or club  
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show Those compartment above water level that may effectively be made watertight  
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show Sailing ropes and hardware  
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show A running tide, rising as it flows, and breaking in ripples  
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show Anchor rope and/or chain  
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Roll   show
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Romeo   show
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Rudder   show
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Rules of the Road   show
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show Red, Green, and White lights used by boats at night  
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show Anchoring length to depth ratio  
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show Propeller. A type of fastener, usually metal similar to a bolt.  
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show Holes cut in bulwarks for water to escape overboard from decks  
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Scuttle   show
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Sea anchor   show
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show Possessed by those who have the ability to walk about on a vessel pitching and tossing about in heavy seas  
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Sea room   show
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Sea State   show
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show Hole in hull with a valve to regulate the water flow  
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Set   show
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Sextant   show
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Shackle   show
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show Curve of the deck as viewed from the side  
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show Rope that controls a sail's horizontal movement  
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Ship   show
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show Place oars in crutches or oarlocks ready to use  
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Shoal   show
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show Electrical power (AC) via cables provided at the marina as opposed to the engines or a generator  
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show Wires that run to the side of the boat to support the sail mast  
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show The red and green navigation lights required by the Rules of the Road, fixed to show from right ahead to two points abaft the beam  
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show the letter "S" in the phonetic alphabet  
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Slack Water   show
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Sling   show
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show Berth with docks on 3 sides  
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Small Craft Advisory   show
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Snub   show
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SOG   show
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show A depth reading  
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show Poles used in sail rigging  
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show Spray whipped off and blown from the crests of waves  
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Splice   show
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Spring Line   show
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Spring Tide   show
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Squall   show
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show A fixed upright pillar support between decks or for guardrails, awnings, etc  
🗑
show that vessel which maintains course and speed  
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Starboard   show
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Starboard Tack   show
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Stateroom   show
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Stays   show
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Steerageway   show
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show The timber at the bow of a ship into which the planks are butted. The points at which both sides of the bow meet  
🗑
show Back of boat  
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show Rope that attaches the back of the boat to a dock  
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show Food and supplies  
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show Rising sea preceding a storm  
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show Damaged by anything breaking through into a ship  
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show TO put in its proper place  
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Superstructure   show
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show Waves coming into the boat  
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Sway   show
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show Long waves from a distance that do not crest  
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Swing   show
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Swing a compass   show
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show To maneuver toward the wind by continually altering course back and forth so as to take the wind at an angle rather than dead on  
🗑
show Assemblage of ropes and blocks  
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Taff rail   show
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Tango   show
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show Accommodate larger outboards.  
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show Water Depth variations created by the gravitational forces of the Moon and the Sun  
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show The upper part of the hull above the waterline  
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Trade winds   show
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show Vertical partition at the back of the boat  
🗑
show The difference in draft between forward and aft. The set of a vessel on the water. The set of a sail used for best advantage  
🗑
show Adjustable planes at the stern that allow the pilot to adjust the trim of the boat  
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Trip Line   show
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Trough   show
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show To turn over completely  
🗑
show Angle conversion process from True to compass direction (+ West)  
🗑
Twin screw   show
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Underway   show
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show the letter "U" in the phonetic alphabet  
🗑
show United States Coast Guard  
🗑
Variation   show
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Veer   show
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Ventilation   show
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VHF   show
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show the letter "V" in the phonetic alphabet  
🗑
Voyage   show
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Wake   show
🗑
show The turbulent water left behind by any vessel passing through the water  
🗑
show The top edge of the bottom color paint where it meets the topside color. The line to where water rises  
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Wave Height   show
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show Position saved in a GPS receiver  
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show to raise an anchor or depart  
🗑
show Structure parallel to the shore  
🗑
Whiskey   show
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show Waves created locally by the wind  
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Windlass   show
🗑
show Upwind side  
🗑
X-ray   show
🗑
show Boat used for recreation with luxury features  
🗑
Yankee   show
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show Horizontal motion from side-to-side  
🗑
Zinc Anodes   show
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Zulu   show
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show Sea sickness  
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ABYC   show
🗑
show abbreviation for air conditioner  
🗑
AC   show
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show further aft; sternwards  
🗑
show a light that can be seen by another vessel from a 360 degree view, visible from at least 2 miles away  
🗑
show A device that measures wind speed.  
🗑
Appendage   show
🗑
Athwartship   show
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show Equipment used on ships and boats to maintain a chosen course without constant human action  
🗑
show A bend or curve in the shore of the sea or river.  
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Bitter End   show
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Boot top   show
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Catalyst   show
🗑
show Normally used to describe a twin hull power boat. Also a type of small sailing vessel  
🗑
show to form cavities or bubbles, usually in reference to a propeller or impeller  
🗑
show An imaginary line down the middle of the boat from the center of the bow to the center of the stern  
🗑
show A series of usually welded metal links or rings connected to or fitted into one another and used for various purposes.  
🗑
show Fitting through which anchor or mooring lined are led  
🗑
show Boat Size Classifications & Requirements Class A. Boats measuring less than 16 feet. Class 1. Boats measuring more than 16 feet but less than 26 feet. Class 2. Boats measuring more than 26 feet but less than 40 feet.  
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Carbon Monoxide (CO)   show
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show Commonly, in a boat, this refers to the outside working or seating area below the deck surface. Not below deck  
🗑
show Navigation line from point a to point b. Also a line tied to a vessel being lifted by a crane to help prevent unwanted movement.  
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Control Signals   show
🗑
show A cover for an outboard motor. Also includes the lower motor cover.  
🗑
Crew   show
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Direct Current (DC)   show
🗑
show A device that measures the depth of the water; as in  
🗑
show the removal of equipment or rigging. our customary derig of cables.  
🗑
Electric Hazards   show
🗑
show Being aware of your surroundings, and the affect your actions have on them  
🗑
show a reinforced plastic material composed of glass fibers embedded in a resin matrix.  
🗑
show separates starboard from port  
🗑
show Toward the bow; as in: Go forward to throw the bow line.  
🗑
Fouled Bottom   show
🗑
show The smooth, hard surface layer of polyester resin in a fiberglass structure.  
🗑
GMT   show
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Grab rail   show
🗑
Gust   show
🗑
show This is when you turn the steering wheel all the way over to the port or starboard.  
🗑
Helmsman   show
🗑
show Hull Identification Number  
🗑
Hull Speed   show
🗑
show Intracoastal Waterway  
🗑
show The rotating part of a centrifugal pump, compressor, or other machine designed to move a fluid by rotation.  
🗑
show An inboard motor is a marine propulsion system for boats. As an inboard motor is an engine enclosed within the hull of the boat, usually connected to a propulsion screw by a driveshaft.  
🗑
Kilometer   show
🗑
show A small compartment below deck or chest used for storage  
🗑
show A lubber line is a fixed line on a compass pointing towards the front of the boat and corresponding to the craft's centerline  
🗑
Midships   show
🗑
show Type of knot, has the name because it looks like a bunched fist. To serve as a weight making it easier to throw the line.  
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Monohull   show
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show A boat is secured to a mooring by lines to prevent free movement of the boat on the water.  
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show A boat is moored by attaching it by cable or rope to the shore or to an anchor.  
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Multihull   show
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show A Marine Sanitation Device, commonly known as an “MSD” is a piece of machinery or a mechanical system that is dedicated to treat, process, and/or store raw, untreated sewage that can accumulate onboard water vessels.  
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show A set of lights shown by a ship or aircraft at night to indicate its position and orientation, especially with respect to other vessels.  
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show To give direction to vessels in order to set a standard that everyone could follow in order to prevent collisions of two or more vessels.  
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Negative Buoyancy   show
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Offshore   show
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show The part of an inboard/outboard motor that is outside the hull providing steering and propulsion.  
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show The base or support (usually used for seats on a boat) where a column is mounted.  
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Plug   show
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show A person engaged and qualified in a profession  
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Propeller   show
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show To empty your boats onboard sewage and waste tanks. Pump out stations are available at most marinas.  
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PWC   show
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show The act of letting current or flow of the water carry your watercraft.  
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Reciprocal   show
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Rig   show
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Right of Way   show
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Rope   show
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RPM   show
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show A metal/rubber rail to protect against rubbing on the docks to avoid damage to the boat.  
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show Code used by sailors on the water to communicate over radio waves and by other means. Also unwritten rules to follow while on the water.  
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Sea Conditions   show
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Secure   show
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Self Bailers   show
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show A one way valves that allow water to exit the boat but not enter.  
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show Reliance on one's own powers and resources rather than those of others.  
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show The act of being able to help or save yourself by being prepared and responsive in dangerous situations.  
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show A pin that is installed between the propeller and the propeller shaft designed to break in case of impact to protect the prop and drive components.  
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Skeg   show
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show The operator of the vessel  
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Statute Mile   show
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show boat's steering wheel is part of the helm that connects to a mechanical, electric, or hydraulic system to assist in turning the boat. consist of a wheel, helm, steering cable, and cable connections, all linking the wheel to the engine.  
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show AN INBOARD ENGINE CONNECTED TO AN OUTBOARD DRIVE UNIT AT THE REAR OF A POWERBOAT  
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show Are longitudinal ridges, Their purpose is usually to deflect spray, lift the hull, and sometimes to stiffen the hull.  
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show provide a watertight seal for the propeller shaft.  
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show An inspection of your boat for damage and condition.  
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show is a person who conducts inspections, surveys or examinations of marine vessels to assess, monitor and report on their condition and the products on them, as well as inspects damage caused to both vessels  
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Swim Platform   show
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Tachometer   show
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Tensile Strength   show
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show a metal ring with a concave groove on the outside, used to line the outside of a ring of rope forming an eye.  
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Thru Hull   show
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show THE WATER CURRENT CAUSED BY THE TIDES  
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Tiller   show
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show Stand while keeping a hand on the tiller,  
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Toe rail   show
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Transducer   show
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Tunnel Hull   show
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Unrig   show
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show a propulsion system for boats that consists of two drive shafts, a gearbox, and a propeller.  
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V Hull   show
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Water Ballast   show
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show A DRIVER ROTATES IN ORDER TO STEER A VEHICLE, ALSO ANOTHER NAME FOR A PROPELLER  
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show a hauling or lifting device consisting of a rope, cable, or chain winding around a horizontal rotating drum, turned by a crank or by motor or other power source; a windlass.  
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Created by: laineoconnor19
Popular Marine Sci Tech 1 sets