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Boating Terms (A-Z) (flashcards)
Flashcards on Nautical Terms
Abeam: Off the boat at right angles to the center line.
A drift: Unattached to shore or bottom, floating out of control.
Aft: Near or toward the stern.
A ground: Touching or stuck on the bottom.
Ahead: 1. The direction towards the bow of the boat relative to the observer. 2. In front of the boat. 3. Moving in a forward direction.
Aids to navigation: Charted objects used to assist in determining position, safe course, or to warn of dangers (e.g., buoys, beacons).
All around light: A light showing an uninterrupted arc of 360° on the horizon.
Mid shift: In or near the middle of the boat.
Anchor: Device used to secure a boat to the bottom of a body of water.
Anchorage: Suitable or designated place where boats anchor.
Astern: 1. Direction toward the stern relative to the observer. 2. Behind a boat. 3. Moving in reverse.
Automatic Information System (AIS): An automatic tracking system used for collision avoidance on vessels.
Bail to remove water by scooping it out with a bucket
Beacon Anything that serves as a signal or indication for guidance or warning. A fixed non-floating aid to navigation
Beam 1 Maximum width of the boat 2.A horizontal athwartship support of the deck
Bearing 1 horizontal direction of an object from an observer, expressed as an angle from a reference direction, (example, compass bearing, true bearing, relative bearing) 2. a device for supporting a rotating shaft with minimum friction. May take the form of a metal sleeve (a bushing)a set of balls (ball bearing), or a set of pins around a shaft (a roller or needle bearing)
Berths, a bed or a place for mowing your boat in a harbor or port
Below Beneath the deck
Bend to make faster sale to a spa or stay or A not to secure a line to another line or object
Bilge lowest part of a boat
Boulder fatigue, exposure to noise, vibration, sun, glare, wind, and other motion on the water produces voters fatigue. Your action time is affected, almost as much as if you were legally drunk.
Boom, a horizontal spa used to hold the bottom of a
Bow forward, end of a boat
Bow line align used at the bow of a vessel
Bowline not used to form an eye or loop in the end of a line (pronounced “bo-lin”)
Braided rope rope fibers are interwoven and clockwise and counterclockwise directions along the length of the line braided rope generally has two parts, a hard, strong core and one or more braided layers
Bridge clearance, vertical clearance under a bridge at mean high water
Bridge communications used for lane shipped to ship navigation communication between large commercial vessels and do not normally involve recreational voters
Bridal a length of line or wire rope with both end secured or a secure loop to the middle of which another line is attached
Broach turn a boat broadside to wind, or wave subjecting it to possible capsizing
Buoy anchored floating device used as an aid to navigation. May carry a light, horn, whistle, bell, gong, or combination for identification. Also may be used to mark a Maureen.
Buoyancy the upward force exerted by a fluid on a body or object in that fluid the upward force that keeps a boat floating
Cabin, the enclosed or decked over living space of a boat
Canoe, a small paddle boat that usually has symmetrical halls with pointed bow like structures at each end, normally open on top
Capsize to turn over, upset
Carrying handle kayaks are normally equipped with carrying handles at each end to facilitate lift
Carrying yolk, a carrying yolk is a permanent strut located at mid ship. It is used in transporting the canoe in addition to providing structural rigidity.
Cast off to let go align, to set loose, unfastened, to undo all Maureen lines in preparation for departure.
Center board a pivoted board that can be lowered through a slot in the keel to reduce leeway
Center line 4 and aft line that runs along the exact center of a boat
Chines The length wise breaks in a holes shape are called chines. They can be easily spotted since they form a sharp bend in the Hall rather than the gradual turn of the round bottom
Chock. 1. A fitting to guide a line or cable 2. Wedge or block to keep an object from moving
Cleat fitting, usually with two projecting horns, to which lines are made fast
Cockpit well or sunken space in the deck
Coil to arrange a line in loops
Cold shock initial cold shock occurs in the first 3 to 5 minutes of cold water immersion. Your risk is an automated gasp, reflex action as soon as immersed in water under 50° F. If your head is underwater, you can ingest water, drown, or have a constricted windpipe and suffocate.
Cold water, immersion, cold water, immersion is dangerous and may kill you quickly before hypothermia sets in Canadian researchers found that people were dying long before the effects of hypothermia would have predicted due to the near instantaneous effect of cold water immersion
COLREGS demarcation line. Typically, the line appears about 3 miles off the continental coastline. When leaving or arriving, this is the imaginary line dividing in England, rules and international rules.
Compass course. The course by boat compass. The angle between the boats keel and the north point of the compass card when the boat is on course.
Compass error. Combined effect of variation and deviation.
Controlled area marks. Controlled area marks are regulatory marks with the type of control indicated on them, such as speed limit or no wake.
Cordage. A general term for all type
Course. The direction in which boat is steered through the water.
Course over ground. Actual direction of travel of a boat over the bottom. This is a term in common usage, although course is a misnomer.The path of a boat with respect to the bottom is track.
Course steered. The direction in which the bow of the boat is pointed when underway.
Crown. The point on an anchor where the shank joins the arms.
Cuddy. A shelter cabin in a small boat.
Current.1. The horizontal movement of water 2. The movement of electrons through a conductor
Dagger board. A sliding board that can be lowered through the keel to reduce
Dangerous area marks. Dangerous area marks are regulatory marks with orange diamonds and the word danger in black letters within the diamond.
Datum. The reference plane from which depths of water are measured and recorded on charts, as charted depths or soundings, and, in coastal waters to which height of tide is added algebraically to determine depth of water.
DayBeacon, Daymark. Unlighted fixed aid to navigation.
Dead rise. The design angle between the bottom of the boat and it’s widest part, beam.
Deck. The portion of the boat that covers the hall.
Deck hatch. Deck hatches are often provided for storage of gear and enclosed water tight compartments on boats.
Deck plate. When used on a canoe, a small deck plate is provided on both ends, provide structural integrity and a place to grip the canoe while lifting and moving it.
Deviation. Disturbing effect of boats magnetic field upon its compass.
Digital selective calling (DSC). an automated format for contacting other radios so equipped
dinghy. Small open boat used as a tender or lifeboat.
Displacement. The weight of water displaced by a floating vessel, hence, the weight of the vessel itself.
Displacement Hall. The hall that maintains its full displacement of water, whether it rests or moving at various speeds, as opposed to a plain hall, which generally decreases its displacement with increased speed.
Distress call. See Mayday.
Diver – below flag. Diver below flag, red square with white diagonal stripe, is usually flown from a boat, raft, float, or buoy to indicate the location of free swimming divers.
Doc. An area of water, within which of vessel can be made fast, between two landing, peers or wharf. Or to guide a vessel alongside a float, peer, or wharf.
Draft.1. Depth of water needed to float a boat.2. The fullness or belly of a sail
Entrapment. This occurs in flowing water when a paddler becomes snagged or fallen trees or debris, (referred to as a strainer), then goes under because of the severe hydraulics of the water.
exclusion area marks. Exclusion area marks are regulatory marks with orange diamonds that have a cross through them with an X explanation in black letters outside the diamond. You will find exclusion areas near dams, rapids, and swimming areas.
Eye. A fixed loop at the end of the line
Fast. Secure, to make something fast is to secure it.
Fathom. Nautical linear measurement equal to 6 feet.
Fender. Protective device between a boat and another object.
Fishing. Fishing is using lines or nets, but not trolling.
Fix. Relatively accurate position, determined without reference to any former position. Usually determined by nearness to unknown charted object or by crossed, intersecting, lines of position.
Flashing light a flashing light at regular intervals at a frequency of 120 flashes or more per minute
Flying bridge. A flying bridge is a raised steering position on a power boat, usually above an interior steering station.
Fog. My new water, droplets suspended in the atmosphere. Differs from a cloud only in that it is at the surface instead of a loft.
Fore-and-aft. Parallel to the center line or keel.
Forward. Toward the bow.
Foul. Jammed, entangled, not clear, being hindered or impeded.
FM – frequency modulation. Transmission of intelligence by varying a radio frequency about its center frequency or carrier.
Galley. Area where food is stored and cooked, nautical kitchen.
Gear. General name for all non-permanent nautical equipment, including cruise, clothing and personal
Give-way vessel. A term, from the navigation rules, used to describe the vessel that must yield in meeting, crossing, or overtaking situations. Compare to stand-on vessel.
Grounding. A slang term, sometimes used for having run a ground.
Head. Marine toilet and it’s compartment.Or the foremost, part of a boat, bow
Heading. Direction in which boat is pointing at a given moment.
Headway. Boats forward momentum.
Helm. The tiller or wheel and related steering gear.
Helmsman. The one who steers the boat with the tiller or wheel.
H. E. L. P. Acronym standing for heat, escape, lessening, posture.
Hi. I’m not used to secure a rope fast to another rope or object.
Hoist. To raise a sale or flag. Also, the length of a sales luff.
horsepower. A measure of the power produced by the engine.
Huddle. The huddle position is recommended when there is more than one victim in the water. Hug so that chests touch each other with legs and arms in intertwined.
Hole. Basic structure and shell of a boat.
Hybrid inflatable life preserver. These preservers combine inherently buoyant flotation material with an inflatable bladder for extra lift.
Hypothermia. The abnormal chlorine of the bodies, internal temperature, resulting from loss of heat from exposure to cold air, wind, or water and can lead to death.
Immersion hypothermia. Long-term immersion, hypothermia sets in 30 minutes after cold water immersion, depending on water temperature. Cold water, robs the body of heat 25 times faster than cold air.
Impeller. A rotor or wheel with blades used to pump water or other fluid fluids.
Inboard. Toward the center line of the boat, inside the boat.
Inboard–outboard (I/O). Propulsion system, consisting of an inboard engine connected through the transom to an outboard drive unit.
Inflatable life preserver. Inflatable life, preserver inflate, either manually or automatically, typically using a CO2 cartridge
Inherently buoyant PFD‘s. Inherently buoyant PFD‘s have buoyant material built-in, usually phone foam. They are the traditional rugged, low maintenance life preserves that are available in adult and child sizes.
Inland rules. Inland navigational rules, and the annex is there too, which govern the conduct of vessels and specify the lights, shapes, and sound signals that apply on inland waters.
Inland Waters. The navigable waters of the United States Shorewood of the navigational demarcation line, dividing the high seas from harbors, rivers and other inland waters of the United States and the waters of the great lakes on the United States side of the international boundary.
Internal combustion.Burning of fuel within an enclosed space
International code A flag. When vessels are engaged in diving with a diverse attached to the vessel, you must display a rigid blue and white international code A flag.
Jet drive. Jet drives using an impeller mounted in a shaft to pull water in from under the hall and propel it rearward to provide thrust. The nozzle on the drive is turned to steer the boat.
Kayak. A small paddle boat that usually has symmetrical holes with pointed bowel like structures at each end. Enclosed on top, except for an opening for the paddler.
Kedge. Move boat by pulling it up to its anchor. Also a type of anchor.
Keel. Main center line structural member, backbone, of a boat. Also, downward extension of hole to increase lateral resistance instability.
Knot. General term for securing align to an object, another line, or itself. Also unit of speed of one nautical mile per hour.
Lanyard.Short line used as a handle or to secure an object
Lanyard cut off switch. When fastened to your wrist if you fall off your personal watercraft, it will stop the engine.
Latitude. Latitude is an angular distance from the equator north or south expressed degrees from 0 to 90. The equator is 0° and the poles are 90° the horizontal lines shown running east to west on charts are latitude lines.
Lee, Lee side. Side away or opposite that from which the wind blows. Also, area, sheltered from the wind.
Length overall, LOA. The most common term used to describe the size of a boat. It is measured from the forward part of the bowel to the aft part of the stern. It does not include attachments that are not part of the Hall, although bow pulpit and swim platforms become part of the overall length of the boat.
Lifeline. When referring to PWC’s, it’s the lanyard cut off switch. In general, a lifeline is a rope thrown to a person who is in danger of drowning.
Light Lists. Light lists, describe all lights, buoys, and beacons maintained in the navigable waters of the United States.
Line. When a board boat, rope is called a line.
Line of site. Line of direct visual observation from one point to another.
Locker. A storage or stowage compartment.
Log. An instrument to measure distance or speed through the water. Or a book in which all matters pertaining to a vessel navigation are recorded.
Longitude. Longitude is the distance east or west of the prime meridian, 0 to 180°. Longitude lines are the vertical lines shown running north to south on charts 1° is 60 nautical miles.
Main mast. The tallest mast on a two master sailing vessel.
Mast. A vertical spar on a sailboat, on which sails may be set. Or a vertical spar on a power boat, from which may be flown a studying sail or flags and burgess, and which can be used with a boom to lift gear.
Masthead. The top of the mast
Masthead light. A white light Placed over the four and after center line of the vessel, showing an unbroken light over an arc of the horizon
Maximum capacities label. Required on boats less than 20 feet and length showing the number of people, total weight of those people; combined weight of the person’s motor and gear; the maximum horsepower.
Mayday. The term used to signify an urgent distress, communication under international radio telephone procedures. The highest priority transmission, indicating there is immediate danger to a vessel or to someone on board.
Meridian. A great circle of the Earth passing through both poles in the direction of true north or true south.
Mooring. Permanent ground tackle to which boat is attached or moored. A place where vessels are kept at anchor.
Nautical mile. A unit of distance equal to one minute of latitude and equal to approximately 6,076 feet, or 1.15 statute miles
Navigational lines of demarcation. International rules apply to all vessels on the high seas outside established navigational lines of demarcation.
Offshore. A direction away from the shore, offshore wind.
Outboard. Towards the outside of a boat.
Outboard motor. An engine with propeller attached, designed to be fastened to the transom of a boat.
Pan – pan.The term used to signify an urgent communication under international radio, telephone procedures. The second highest priority transmission, indicating that the safety of the vessel or someone on board is Involved, but the need for assistance is not immediate.
P. A. S. S. Acronym stands for pole, aim, squeeze, and sweep when using a fire extinguisher.
Pier. Structure extending into the water from the shoreline to provide dockage.
Pile. A pole or post driven vertically into the bottom, usually to support appear or float or to moor a boat.
Piling. A structure of piles often use to protect wharves and piers
Pitch pole. Capsize and over end.
Pivot point. If you look down on a boat, when it turns, you will discover that it turns about a point called the pivot point. This point is located along the keel at the centerline of the boat, but it may move for or after, depending on whether the boat is going forward or in reverse For most Power boats the point lies about 1/3 of the way from the bow to the stern when going forward
Planing hull. A hall designed to climb towards the surface of the water as sufficient power is applied and to skim along the water at a greatly reduced displacement attitude.
Plow anchor. An anchor shaped like a farmers plow.
Plug. A piece of wood fitted into a hole in a vessel, usually below the waterline.
Port. Left side of the boat when facing the bow. Or toward the boats left. Or an opening in a boat side as in port light or porthole.
Port communication. Port communication includes calls to shore, marines, boat yards, to get navigational information to arrange for such things as supplies, accommodations, and repair repairs.
Post immersion collapse. Post immersion collapse occurs during or after rescue from cold water immersion. Once rescued, after having been immersed in cold water, you are still in danger from collapse of arterial blood pressure leading to cardiac arrest.
Power driven vessel. Any vessel propel by machine machinery.
Prolonged blast. A blast of from 4 to 6 seconds duration.
Propeller. A multi bladed, rotating wheel that furnishes propulsion.
Pyrotechnic signals. Pyrotechnic sign signals resemble fireworks. They include red flames, orange smoke, handheld, or aerial, meteor, and parachute, flares.
Quarter. After part of a Boat side, for example port quarter. Or direction 45° abaft the beam.
Radar. An electronic navigational system using reflected radio pulse signals to determine the relative bearing and distance of an object from the vessel.
Rail. A boat side above the deck line.
Range. 1. Two or more objects in line. 2. maximum distance at which an object may be seen. 3. distance between any two points, such as a radar range to a navigational aid. 4. difference in elevation (height), between any successive pair or high and low tides.
Reciprocal. In navigation, a bearing or direction 180° from another bearing or direction.
Regulatory mark. White and orange aided to navigation that shows controlled area areas, areas of danger, and wear boats are not allowed.
Restricted visibility. A condition when vessels are unable to see each other because of fog, haze, mist, rain, sleet, snow, or high seas.
Right of way. This term applies to vessels on the Great Lakes and western rivers. A power driven vessel in a narrow channel or fairway proceeding down bound with a following current shall have the right of way over and up bound vessel. Vessels, crossing rivers shall keep clear of vessels that are ascending or descending the river.
Risk of collision. The skipper and crew of every vessel must use all available, means appropriate to the prevailing conditions to determine if risk of collision exists. If you have any doubt, then the risk of collision exists, and you must take whatever evasive action is necessary to avoid collision
Rode. Anchor line or chain.
Rutter. A flat board or plate hung on the aft end of a boat and used to steer the boat.
Rutter post. The shaft to which a rudder blade is attached. The tiller or other steering apparatus is a fixed to the other end.
Running rigging. running rigging is composed of the lines used to raise, set, and trim sails
Sailing vessel. Any vessel under sail provided that propelling machinery, if fitted, is not being used.
Sails. Provide the boats propulsion through in power.
Screw. See propeller.
Sea. A system of wind waves that are still being blown by the wind force that created them. Usually irregular and choppy, unlike swell.
Seaworthy. Instead of a boat that is in fit condition to put to sea.
Secure. To cover openings and make movable objects, fast.
Security. The term used to signify a message, conveying the safety of navigation under international radio telephone procedures. The third priority transmission.
Shackle. Are used shaped metal device with removable pin, used to connect a sale, line, or fitting.
Shaft. A cylindrical rod. A rotating shaft is used to transmit power from the engine to the propeller
Shank. The part of an anchor that connects the fluke’s to the rode.
Short blast. A blast of about one second duration.
Shrouds. Wire cables that support the mast from side to side.
Side lights. A green light on the starboard side and a red light on the port side, each showing an unbroken light over an arc of the horizon.
Slack. Not carrying any load, loose. Or to ease or pay out a line.
snob. To stop a line running out by taking a turn around a bit or cleat.
Sole. The floor of the boat.
Sounding. A measured or charted depth of water, or the measurement of that depth.
Special flashing light. A yellow light flashing at regular intervals of 50 to 70 flashes per minute, placed as far forward and is nearly as practical on the floor and aft the centerline of the toe and showing an unbroken line over in ark of the ho
Speed. Rate of motion.
Stability. The ability of a boat to resist healing and overturning.
Stand on vessel. The term from the navigation rules, used to describe the vessel that continues its course in the same direction at the same speed during a crossing or over taking Situation, unless a collision appears imminent. Compare giveaway vessel.
Starboard. Side of a boat, or direction, to the right when facing toward the bow.
Stern. Aft end of a boat.
Stern light. A white light placed as nearly as practical at the Stern showing an unbroken light over in arc of the horizon.
Stock. The crossbar of an anchor. Also, a rudder shaft.
Stow. To put something in its proper place.
Strand. To drive a vessel assure or a ground. Or one of the lays of a rope, the wound yarns of fibers that are woven with other strands to make a rope.
Strainer. Fallen trees or debris that can cause a paddler to become in trapped.
Stranding. Running a ground.
Strut. A bracket that supports the propeller shaft; located outside of the hull.
Swamp. To fill with water, but not to founder.
Swell. A wave system that has outrun or is no longer being acted upon by the wind that created it. As well as characterized by regular, smooth, crested waveforms, usually of long wavelength.
Swim failure. Short-term swim failure occurs 3 to 30 minutes following cold water immersion. Manual dexterity, hand, grip strength, and speed movement can all drop by 60 to 80%.
Tide. The vertical rise and fall of ocean water, most notably in coastal regions, resulting mainly from the gravitational attraction of the moon and sun
Tiller. A lever attached to the upper end of the Rutter stock, used by the helmsman to turn the Rutter.
Top side. On or above the weather deck, wholly exposed to the elements.
Towing light. A yellow light having the same characteristics as the stern light defined in this rule.
Track. The path of the vessel over ground.
Transceiver. A radio set that combines transmitting and receiving modes in one package. It may have circuits or components common to both.
Transmitter. Electronic unit, capable of generating a signal for propagation through a medium.
Transom. The portion of the Hall at the Stern that is at right angles to the centerline of the boat.
Trolling. Trolling is a form of commercial fishing that drags a net or scoop along the sea bottom
True course. The course, as plotted on the chart, measured from true north.
Turnbuckle. Attention adjusting device for tightening wire, rigging, or cable, composed of threaded rods, extending from within a threaded barrel.
Twin screw. Twin screw boats have two engines each with a propeller.
Under power. A boat being propelled by an engine, even though sale may be set.
Under the influence. Drugs and alcohol affect your judgment and keep you from thinking clearly. Operating a boat under the influence is illegal.
Underway. A vessel that is not at an anchor, or made fast to the shore, or a ground.
Variation. The angle between the geographic Meridian and the magnetic Meridian at a given locality. Variation is the easterly or Westerly, as the direction of the magnetic Meridian is toward the east or west of geographic north.
Vessel. Includes every description of watercraft, including non-displacement craft, and sea planes, used or capable of being used as a means of transporting on water.
Vessel constrained by her draft. A power driven vessel, which, because of her draft in relation to the available depth and width of the navigable water is severely restricted in her ability to deviate from the course she is following.
Vessel engaged in fishing. Any vessel with nets, lines, or other fishing apparatus which restrict maneuverability, but does not include a vessel trolling or other fishing apparatus which do not restrict maneuverability.
Vessel insight. Insight of one another, only when one can be visibly observed from the other.
Vessel not under command. A vessel which through some exceptional circumstance is unable to maneuver as required by these rules and is therefore unable to keep out of the way of another.
Vessel restricted in ability to maneuver. A vessel, which, from the nature of her work is restricted in her ability to maneuver as required by these rules, and is therefore unable to keep out of the way of another vessel.
Visibility. The greatest distance at which one can see and recognize prominent object objects.
Wake. Water surface turbulence left by a moving boat.
Warning. In weather, advisories, a bulletin, indicating that a hazardous condition, such as a tornado or a flash flood, is in existence and may threaten some portion of the warning area.
Watch. In weather, advisories, a bulletin, indicating that a hazardous condition such as a tornado or flash flood, may develop. Also a period of time during which a crew member is on duty.
Waterline. An imaginary line along the boat hall from the point where the bow touches the water to the point where the stern emerges from the water
Wave. In water, a series of undulations that move along the surface.
Way. Movement of a vessel through the water, such as headway, stern way, or leeway.
Weather. The condition of the atmosphere at any given time and place. Also the Winward side.
Wheel. A wheel may be used to steer a boat, usually connected to the Rutter post by means of gears and cables.
Whistle. Any sound signaling appliance capable of producing the prescribed blasts in which complies with a specifications to these rule.
Winch. A geared drum turned by a handle and used to pull lines such as sheets and halyards.
Wind. Horizontal motion of the air, reported in both speed and direction.
Working end. The outboard or free end of a line, chain, or cable, used to make knots, bends, and splices, and to attach to an anchor, cleat, or other vessel.
NoteStudied by 11 peopleNoteStudied by 135 peopleNoteStudied by 3 peopleNoteStudied by 12 peopleNoteStudied by 9 peopleNoteStudied by 10 people