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Terms in this set (242)
Toward the rear of the boat relative to a point of reference.
A direction off the boat at right angles to the fore-and-aft line amidships.
On or within the boat.
On the deck.
Side by side; by the side of.
Loose, not on moorings or towline.
Toward the rear of the boat.
Touching or fast to the bottom.
In a forward direction.
Aids to Navigation
Markers on land or sea which are located to enable navigators to avoid danger and fix their position.
Away from the direction of the wind. Opposite of windward.
Above the deck of the boat.
In or toward the center of the boat.
A line used to hold a vessel fast to the anchor
A suitable place for anchoring in relation to the wind, seas and bottom.
Behind the boat.
Weight, usually iron or lead, carried inside the boat or outside on the keel for trim or for stability.
At right angles to the centerline of the boat.
Off the bottom of an anchor
Secure hatches and loose objects both within the hull and on deck.
The greatest width of the boat.
The direction of an object (vessel, buoy, etc.) from an observer; bearings can be visual, or by radio or radar.
To go to windward in a sailboat by sailing with the wind first on one side and then do the other
To secure a line usually to a cleat.
Beneath the deck.
Space allocated to a boat at the dock, mooring area or anchorage.
The part of the rope or line, between the end and the standing part, on which a knot is formed.
The lowest point of a vessel's interior hull usually located beneath floorboards.
The electric fan that blows gasoline fumes out of the bilge.
The extreme end of any line. The inboard end of the anchor rode.
Housing of the compass.
A wood or metal that encloses on or more sheaves, or pulleys, through which lines are led.
A device that blows fuel vapors trapped inside the vessel to the outside. Blowers should be run for about 5 minutes prior to starting a boat's inboard engine to reduce the risk of explosion.
A fairly indefinite term. A waterborne vehicle smaller than a ship. One definition is a small craft carried aboard a ship.
A short shaft with a fitting at one end shaped to facilitate use in putting a line over a piling, recovering an object dropped overboard, or in pushing or fending off.
A projected spars (longerons) used to hold down and extend the foot of a sail.
A painted line that indicates the designed waterline.
The forward part of a boat.
A docking line leading from the bow.
A knot used to form a temporary loop in the end of a line.
A triangular gusset between longitudinal stringers, abaft of the stem (forward most part of the bow).
The location from which a vessel is steered and its speed controlled. "Control Station" is really a more appropriate term for small craft.
A line or wire secured at both ends in order to distribute a strain between two points.
Varnished woodwork and/or polished metal.
A vertical partition separating compartments.
An anchored float used for marking a position on the water or a hazard or a shoal and for mooring.
That vessel which, according to the applicable Navigation Rules, must give way to the privileged vessel. The term has been superseded by the term "give-way".
A compartment for passengers or crew.
A placard permanently mounted on the stern describing the total weight limit allowed onboard. Includes people, engine, fuel & gear that can be safely carried.
To turn over.
Carburetor Back Flame Arrestor
A safety device made of a mesh construction to prevent explosion from engine exhaust backfire.
Undo mooring lines in preparation for departure.
A twin-hulled boat, with hulls side by side.
The weatherproofing material packed into the seams of a planked boat to make it watertight.
Planking found on the ribs or frames.
A long, narrow plate attached to side of the hull as a fastening point for shrouds and stays.
(1.) That part of a body of water deep enough for navigation through an are otherwise not suitable. It is usually marked by a single or double line of buoys and sometimes by range markers. (2.) The deepest part of a stream, bay, or strait, through which the main current flows.
Tubing or cloth wrapping used to protect a line from chafing on a rough surface.
A term applied to the hood and smoke pipe of a galley stove.
A sea going map for use by navigators.
A sharp-angled intersection between a boat's topsides and bottom. The intersection of the bottom and sides of a flat or v-bottomed boat.
A fitting through which anchor or mooring lines are led. Usually U-shaped to reduce chafe.
A fitting to which lines are made fast. The classic cleat to which lines are belayed is approximately anvil-shaped.
The two lower corners of a square sail or the aft lower corner of a triangular sail.
A knot for temporarily fastening a line to a spar or piling.
A vertical piece around the edge of a cockpit, hatch, etc. to prevent water on deck from running below.
An opening in the deck from which the boat is handled.
To lay a line down in circular turns.
A passageway through which a ladder or stairs lead from the deck down to the cabin.
Navigation instrument, either magnetic (showing magnetic north) or gyroscopic (showing true north).
Stress generated by squeezing forces.
The underside of the overhanging part of the stern above the waterline.
The direction in which a boat is steered.
A small, enclosed space or cabin in a boat.
The horizontal movement of water.
A small boat with one mast stepped more than one third of the way aft, 2 or more sails ahead the mast.
A removable centerboard with no pivot pin.
The area encompassed from dead ahead of your boat to just abaft your starboard beam. You must stand clear of any boat in the "danger zone".
A fixed navigation structure used in shallow water upon which is placed one or more daymarks.
The navigational art of determining your position based on course steered and speed rather than through obtaining a position from other means. ( Using a chart or electronic device)
The angle at which the bottom rises from where it joins the keel to turn of the bilge, or chine.
A permanent covering over a compartment, hull or any part thereof.
A small open boat. A dinghy is often used as a tender for a larger craft.
The weight of water displaced by a floating vessel, thus, a vessel's weight.
A type of hull that plows through the water, displacing a weight of water equal to its own weight, even when more power is added.
A protected water area in which vessels are secured. The term is often used incorrectly to denote a pier or a wharf. The dock is the water adjacent to a pier or wharf.
A group of piles driven close together and bound with wire cables into a single structure.
Deck box that allows air but not water to enter in the cabin.
A direction leeward, with the wind.
The depth of the vessel that extends below the waterline.
Decay of wood caused by fungus that flourishes in a moist, unventilated environment.
A receding current.
An anomaly occasionally encountered in aluminum alloys.
Smooth, unfouled, favorable, as a fair hull or a fair wind.
A unit of measure. 1 fathom = 6 feet.
To prevent a moving boat from hitting a dock or other object.
A cushion, placed between boats, or between a boat and a pier, to prevent damage.
A cloth mat or roving of glass laminated with plastic resin: used extensively in boat construction.
Figure Eight Knot
A knot in the form of a figure eight, placed in the end of a line to prevent the line from passing through a grommet or a block.
A pyrotechnic device used to signal a distress. The outward curve of a vessel's sides near the bow.
Outward spread and upward curve of the topsides as they rise from the waterline, most noticeably in the bow section. Most pronounced curve of flare is called the flam.
A incoming current.
The surface of the cockpit on which the crew stand.
The part of an anchor that is designed to dig in to the bottom.
A raised platform that affords unobstructed vision for steering and navigation.
An overtaking sea that comes from astern.
Bottom edge of a sail.
In a line parallel to the keel, a boat's longitudinal axis.
The area where the stem joins the keel below the waterline.
A compartment in the bow of a small boat.
A supporting stay leading from the mast forward, part of the headstay.
On a sailboat, the triangle formed by the headstay, the front of the mast and the deck.
Toward the bow of the boat.
Any piece of equipment that is jammed or entangled, or dirtied.
A rig in which the headstay meets the mast at some distance below the masthead.
The minimum vertical distance from the surface of the water to the gunwale.
Individual sections of sawn (science) frames.
A spar to support and spread the head of a sail.
Any sailing vessel with sail, top attached to spar extending from main mast.
The kitchen area of a boat.
The area of a ship's side where people board and disembark.
The first plank, or strake, out from the keel.
A general term for ropes, blocks, tackle and other equipment.
The thin outer coat of a fiberglass hull often impregnated with color.
A large headsail set on the headstay and overlapping the mainsail.
A term used to describe the vessel which must yield in meeting, crossing, or overtaking situations.
Global Positioning System (GPS)
A form of position finding using radio transmissions from satellites with sophisticated on-board automatic equipment.
A fitting which secures the hinged edge of a spar to the mast.
Hand-hold fittings mounted on cabin tops and sides for personal safety when moving around the boat.
A collective term for the anchor and its associated gear.
Bored lug projecting from the stren post to support rudder.
The upper edge of a boat's sides.
A line to hoist and lower a sail.
An abrupt intersection between the hull side and the hull bottom of a boat so constructed.
An opening in a boat's deck fitted with a watertight cover.
A heavy line or cable, five inches or more in circumference.
Head (Inside the boat)
A marine toilet. Also the upper corner of a triangular sail.
The top corner of a triangular sail.
Sails set within the foretriangle, forward of the mast and usually
The direction in which a vessel's bow points at any given time.
Foremost stay supporting the mast. The jig is set on the headstay.
The forward motion of a boat. Opposite of sternway.
A sideways leaning of a boat caused by the wind's force of sail.
The wheel or tiller controlling the rudder.
The person who steers the boat.
A knot used to secure a rope to another object or to another rope, or to form a loop or a noose in a rope.
A compartment below deck in a large vessel, used solely for carrying cargo.
The equivalent of a lift of 550 pounds one foot in one second.
The main body of a vessel, the basic structural shell of a boat.
The limit of a speed imposed on a displacement hull by the resistance of its own wave system.
(1.) More toward the center of a vessel; inside; (2.) A motor fitted inside a boat.
An engine permanently mounted inside a boat's hull.
Longitudinal parts of hull structure, in short lengths between traverse structural members.
Intracoastal Waterway (ICW)
bays, rivers, and canals along the coasts connected so that vessels may travel without going into the sea.
A rope ladder, lowered from the deck, as when pilots or passengers come aboard.
A structure, usually masonry, projecting out from the shore; a jetty may protect a harbor entrance.
A triangular sail set on the headstay.
A triangular sail supported by a halyard directly attached its head-as opposed to a sail that is gaff-headed.
The centerline of a boat running fore and aft; the backbone of a vessel.
(1.) A measure of speed equal to one nautical mile (6076 feet) per hour.(2.) A fastening made by interweaving rope to form a stopper, to enclose or bind an object, to form a loop or a noose, to tie a small rope to an object, or to tie the ends of two small ropes together.
The distance north or south of the equator measured and expressed in degrees.
A storage space in a boat's stern area.
The side sheltered from the wind.
The direction away from the wind. Opposite of windward.
The sideways movement of the boat caused by either wind or current.
Rope and cordage used aboard a vessel.
A structure having movable gates for ships and boats to pass up and down to different water levels in a canal, river, or tidal basin.
A record of courses or operation. Also, a device to measure speed.
The distance in degrees east or west of the meridian at Greenwich, England.
A mark or permanent line on a compass indicating the direction forward parallel to the keel when properly installed.
A tool for opening the strands of a rope while splicing.
Approximately in the location equally distant from the bow and stern.
Single hull boat in contrast to a multihull such as a catamaran or a trimaran.
(1)An arrangement for securing a boat to a mooring buoy attached to permanent ground tackle or (2) an area where vessels are kept at anchor.
Wire, manila, or nylon rope used to secure a boat to a fixed object such as a dock, seawall, pier, shoreline or mooring ball;
One minute of latitude; approximately 6076 feet - about 1/8 longer than the statute mile of 5280 feet.
The art and science of conducting a boat safely from one point to another.
The regulations governing the movement of vessels in relation to each other, generally called steering and sailing rules.
Toward or beyond the boat's sides. A detachable engine mounted on a boat's stern.
Over the side or out of the boat.
Said to happen when on vessel is passing another from behind.
A loading platform extending at an angle from the shore.
A wood, metal or concrete pole driven into the bottom. Craft may be made fast to a pile; it may be used to support a pier (see PILING) or a float.
Support, protection for wharves, piers etc.; constructed of piles (see PILE)
Navigation by use of visible references, the depth of the water, etc.
A boat is said to be planing when it is essentially moving over the top of the water rather than through the water.
A type of hull shaped to glide easily across the water at high speed.
(1) The left side of a boat looking forward. (2) A harbor.
A powered device on deck, on a spar or otherwise mounted which is used to haul a line.
A vessel which, according to the applicable Navigation Rule, has right-of-way (this term has been superseded by the term "stand-on").
The sides of a boat aft of amidships.
Sea coming on a boat's quarter.
The wire rope, rods, lines, hardware, and other equipment that support and control the spars and sails; standing rigging is semi-permanent once set up; running rigging is continually adjusted as the sails are hoisted, doused, trimmed, or reefed.
The anchor line and/or chain.
In general, cordage as it is purchased at the store. When it comes aboard a vessel and is put to use it becomes line.
A vertical plate or board for steering a boat.
To allow a line to feed freely.
Lights required to be shown on boats underway between sundown and sunup, and during periods of reduced visibility.
Technically, the ratio of length of anchor rode in use to the vertical distance from the bow of the vessel to the bottom of the water. Usually seven to one for calm weather, more scope in storm conditions.
A boat's propeller.
Drain holes on deck, in the toe rail, or in bulwarks or (with drain pipes) in the deck itself.
A through hull valve, a shut off on a plumbing or drain pipe between the vessel's interior and the sea.
All the arts and skills of boat handling, ranging from maintenance and repairs to piloting, sail handling, marlinespike work, and rigging.
A safe distance from the shore or other hazards.
A boat or a boat's gear able to meet the usual sea conditions.
To make fast.
Direction toward which the current is flowing.
A larger vessel usually thought of as being used for ocean travel. A vessel able to carry a "boat" on board.
Not fastened; loose. Also, to loosen.
Cabin or saloon floor. Timber extensions on the bottom of the rudder. Also the molded fiberglass deck of a cockpit.
A measurement of the depth of water.
A pivot line used in docking, undocking, or to prevent the boat from moving forward or astern while made fast to a dock.
A sudden, violent wind often accompanied by rain.
A knot used to join two lines of similar size. Also called a reef knot.
That part of a line which is made fast. The main part of a line as distinguished from the bight and the end.
That vessel which has right-of-way during a meeting, crossing, or overtaking situation.
The right side of a boat when looking forward.
The forward most part of the bow.
The back part of the boat.
A docking line leading from the stern.
To put an item in its proper place.
To fill with water, but not settle to the bottom.
(1) A small boat accompanying a yacht or other pleasure vessel, used to transport persons, gear, and supplies; sometimes called a dinghy. (2) Most commonly refers to one who tends to a drawbridge. Boaters contact the bridge tender to get the bridge raised so they can pass under.
Regulates the flow of fuel, and thus the speed, of an internal combustion engine.
At right angles to the centerline of the boat.
The periodic rise and fall of water level in the oceans.
A bar or handle for turning a boat's rudder or an outboard motor.
The sides of a vessel between the waterline and the deck; sometimes referring to onto or above the deck.
Assisting a vessel unable to maneuver by pulling, pushing or towing alongside.
The stern cross-section of a square sterned boat.
Fore and aft balance of a boat. To set and adjust sails.
Vessel in motion, i.e. when not moored, at anchor, or aground.
One of the chief testing organizations, helping to set US safety standards.
A hull with the bottom section in the shape of a "V".
Moving waves, track or path that a boat leaves behind it, when moving across the waters.
The imaginary line drawn on the hull by the water's surface where a boat settles when loaded normally.
Movement of a vessel through the water such as headway, sternway or leeway.
Toward the direction from which the wind is coming.
A pleasure vessel, a pleasure boat; in American usage the idea of size and luxury is conveyed, either sail or power.
To swing or steer off course, as when running with a quartering sea.
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