Vocabulary Flashcards
Rhumb line
A straight course between two points
Fairway
A channel
Knockdown
A boat heeled so far that one of its spreaders touches the water
Mainsheet
The controlling line for the mainsail
Lazy sheet
The windward side jib sheet that is not under strain
Mast
The large aluminum or wooden pole in the middle of a boat from which the mainsail is set
Bearing
The direction from one object to another expressed in compass degrees
Bolt rope
The rope sewn into the foot and luff of some mainsails and the luff of some jibs by which the sails are attached to the boat
Masthead
The top of the mast
Coaming
The short protective wall surrounding the cockpit
Compass rose
The twin circles on a chart which indicate the direction of true north and magnetic north
Offshore
Away from or out of sight of land
“Ready to jibe”
The command given to the crew to prepare to jibe
By the lee
Sailing on a run with the wind coming over the same side of the boat as the boom
Below
The area of a boat beneath the deck
Shroud
Standing rigging at the side of the mast
Waterline
The horizontal line on the hull of a boat where the water surface should be
Hull speed
The theoretical maximum speed of a sailboat determined by the length of is waterline
Forepeak
A storage area in the bow (below the deck)
Give-way vessel
The vessel required to give way to another boat when they may be on a collision course
Magnetic
In reference to magnetic north rather than true north
Downhaul
A line used to pull down the movable gooseneck on some boats to tighten the luff of the mainsail. the Cunningham has the same function on other boats.
Charter
To rent a boat
Working sheet
Leeward jib sheet that is being used to trim the jib
Mizzen
The small aftermost sail on ketch or yawl hoisted on the mizzen mast
Rudder
The underwater fin that is controlled by the tiller to deflect water and steer the boat
Freeboard
The height of the hull above the water’s surface
Schooner
A two-masted boat whose foremast is usually shorter than its mainmast
Chop
Rough, short, steep waves
Companionway
The steps leading from the cockpit or deck to the cabin below
Luff groove
The slot into which the luff of a sail is inserted
Head
1) The top corner of a sail
2) The bathroom on a boat
3) The toilet on a boat
Sheave
The rotating wheel inside a block or fitting
Following sea
Waves hitting the boat from astern
Telltales
1) Pieces of yarn or sailcloth material attached to sails which indicate when the sail is properly trimmed
2) Wind direction indicators attached to the standing rigging
Course
The direction in which the boat is steered
Tune
To adjust a boat’s standing rigging
Furl
To fold or roll up a sail
“Hard a-lee”
The command given to the crew just prior to tacking
Secure
Make safe or cleat
Compass
The magnetic instrument which indicates the direction in which the boat is headed
Outhaul
The controlling line attached to the clew of a mainsail used to tension the foot of the sail
Hove-to
A boat that has completed the process of heaving-to, with its jib aback, its main loosely trimmed, and its rudder securely positioned to steer it close to the wind
Topping lift
A line used to hold the boom up when the mainsail is lowered or stowed
Centerline
The midline of a boat running from bow to stern
Point
To steer close to the wind
Splice
The joining of two lines together by interweaving their strands
Cast off
To release a line when leaving a dock of mooring
Roach
The sail area aft of a straight line running from the head to the clew of a sail
Full
Not luffing
Displacement
The weight of a boat; therefore the amount of water it displaces
Keel
The heavy vertical fin beneath a boat that helps keep it upright and prevents it from slipping sideways in the water
Broad Reach
Point of Sail: Sailing in a direction with the wind at the rear corner of the boat (~135 degrees from the bow)
Lead
(LEED): To pass a line through a fitting or a block
Fathom
A measurement of the depth of water. One fathom = 6’
Fast
Secured
Tide
The rise and fall of water level due to the gravitational pull of the sun and moon
Dead downwind
Sailing in a direction straight downwind
Rail
The outer edges of the deck
Lubber’s line
A small post in a compass used to help determine a course or a bearing
Toe rail
A short aluminum or wooden rail around the outer edges of the deck
Come about
Another phrase for “tack”
Overpowered
A boat that is heeling too far because it has too much sail up to the amount of wind
Lash
To tie down
Seacock
A valve which opens and closes a hole through the hull or saltwater needed on board or discharge
Leeward
(LEW-erd): The direction away from the wind (where the wind (where the wind is blowing to)
Pushpit
A stainless steel guardrail at the stern of some boats
Low side
The leeward side of the boat
Gudgeon
A fitting attached to the stern of a boat into which the pintles of a rudder are inserted
Beam
The width of a boat at its widest point
“Ready about”
The command given to the crew to prepare to tack
Nun
A red, even-numbered, cone-shaped buoy marking the right side of a channel as you return to port. Nuns are usually paired with cans.
Can
An odd-numbered, green, flat-topped buoy marking the left side of a channel as you return to port
Boat speed
The speed of a boat through the water
Grommet
A reinforcing metal ring set in a sail
Working sails
The mainsail and standard jib
Helm
The tiller
Snub
To hold a line under tension by wrapping it on a winch or cleat
Windward
Toward the wind
Spring line
A dockline running forward or aft from the boat to the dock to keep the boat from moving forward or aft
Mainsail
(MAIN-sil): The sail hoisted on the mast of a sloop or cutter of the sail hoisted on the mainmast of a ketch or yawl
Kedge off
To use an anchor to pull a boat into deeper water it has run aground
Holding ground
The bottom ground in an anchorage used to hold the anchor
Boom vang
A block and tackle system which pulls the boom down to assist sail control
Foot
The bottom edge of a sail
Cabin
The interior of a boat
Daysailer
A small sailboat
Vang
Short for “boom vang”
Bilge
The lowest part of the boat’s interior, where water on board will collect
Fend off
Push off
Stanchions
Stainless steel supports at the edge of the deck which hold the lifelines
Sole
The floor in a cockpit or cabin
Blanket
To use a sail or object to block the wind from filling a sail
Rake
The angle of the mast
Slow
To store properly
Bight
A loop in a line
Stay
A wire support for a mast, part of the standing rigging
Fender
A rubber bumper used to protect a boat by keeping it from hitting a dock.
Sail ties
Pieces of line or webbing used to tie the mainsail to the boom when reefing or storing the sail
Luff
1) The forward edge of a sail
2) The fluttering of a sail caused by aiming too close to the wind
Dockline
A line used to secure the boat to the dock
Whip
To bind together the strands at the end of a line
Push-pull principle
The explanation of how sails generate power
Outboard
1) Outside the rail of boat
2) A portable engine
Lee shore
Land which is on the leeward side of the boat. Because the wind is blowing in that direction, a lee shore could pose a danger.
Pulpit
A stainless steel guardrail at the bow and stern of some boats
Fairlead
A fitting that guides a jib sheet or other lines back to the cockpit or along the deck
Figure-8 knot
A knot designed to act as a stopper in the end of a line that takes the form of an 8
Stern
The aft part of the boat
Trimaran
A three-hulled sailing vessel
Knot
One nautical mile per hour
Windward side
The side of a boat or a sail closest to the wind
Roller furling
A mechanical system to roll up a headsail (jib) around the headstay
Jibe
To change direction of a boat by steering the stern through the wind
Standing rigging
The permanent rigging (usually wire) of a boat, including the forestay, backstay, and shrouds
Sea breeze
A wind that blows over the sea and onto the land
Cockpit
The lower area in which the steering controls and sails controls are located
Buckhead
A wall the runs athwartships on a boat, usually providing structural support to the hull
Rode
Line and chain attached from the boat to the anchor
Coil
To loop a line neatly so it can be stored
Sail cover
The protective cover used to preserve sails when they are not in use
Head down
To fall off or bear away, changing course away from the wind
“Jibe-ho”
The command given to the crew when starting a jibe
True wind
The actual speed and direction of the wind when standing still
No-Go Zone
An area into the wind in which a boat cannot produce power to sail
Tiller extension
A handle attached to the tiller which allows the helmsman to sit further out to the side
Staysail
(STAY-sil): On a cutter, a second small “inner jib”, attached between the bow and the mast
Reef
To reduce the size of a sail
Swamped
Filled with water
Tiller
A long handle, extending into the cockpit, which directly controls the rudder