Term
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Definition
| The watertight floating body of the boat that gives it form and houses or supports every other part of the boat. |
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Term
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Definition
| Upper part of the hull on which one walks or stands. |
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Term
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Definition
| The more or less flat surface that closes the hull at the stern. |
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Term
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Definition
| A fixed appendage on the bottom of the hull that provides sideways resistance needed to counter the force of the wind. |
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Term
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Definition
| A fixed vertical spar that holds up a sail or sails. |
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Term
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Definition
| The spar that supports the foot of the mainsail. |
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Term
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Definition
| An articulated fitting that connects a boom to a mast. |
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Term
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Definition
| The forward part of the boat. |
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Term
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Definition
| The aft part of the boat. |
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Term
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Definition
| Part that is used to control the rudder angle. |
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Term
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Definition
| Fin-shaped attachment, attached beneath the boat toward the stern, which can rotate to change the angle at which water strikes it. |
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Term
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Definition
| Shrouds and stays that support spars like the mast and that remains in place when the boat is not sailing. |
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Term
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Definition
| A wires that provide sideways support for the mast. |
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Term
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Definition
| A strut sideways of the mast that holds a shroud away from the mast. |
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Term
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Definition
| Metal fitting attached to the hull to which a stay or shroud is connected. |
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Term
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Definition
| A wire support from the top of the mast to the bow. |
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Term
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Definition
| A wire support from the top of the mast to the stern. |
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Term
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Definition
| Post on the deck of the boat that supports the lifeline. |
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Term
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Definition
| A wire around the perimeter of the deck to prevent crew from falling overboard. |
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Term
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Definition
| A gear driven drum to provide mechanical advantage when hauling on a line. Can be operated with a handle. |
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Term
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Definition
| A fitting used to secure a line under load. |
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Term
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Definition
| A cushion placed between a boat and a dock. |
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Term
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Definition
| A line used to tie a boat to its dock. Stern line, Spring line, Bow line. |
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Term
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Definition
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Term
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Definition
| A fitting used to lead fair and at the correct angle to a winch, cleat, or other fitting. |
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Term
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Definition
| An area of a boat, usually recessed into the deck, from which the boat is steered and sailed. |
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Term
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Definition
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Term
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Definition
| A guardrail at the bow or stern of a boat. |
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Term
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Definition
| The sail that attaches on the aft side of the mainmast. |
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Term
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Definition
| A triangular sail set forward of the mainmast. |
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Term
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Definition
| A large jib that extends aft of the mast. |
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Term
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Definition
| The forward lower corner of a sail. |
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Term
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Definition
| To change course by turning the bow of the boat through the wind. |
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Term
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Definition
| A course designation at which the wind is blowing from the port side. |
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Term
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Definition
| A course designation at which the wind is blowing from the starboard side. |
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Term
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Definition
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Term
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Definition
| The aft lower corner of the sail. |
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Term
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Definition
| A line attached to the clew of a jib used to adjust its angle to the wind. |
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Term
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Definition
| A line system (block or tackle)used to exert downward force on the boom and thus control the shape of the sail. |
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Term
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Definition
| A line used to control the shape of the curve of the foot of the sail. It runs from the clew to the end of the boom. |
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Term
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Definition
| A line from the top of the mast to the aft end of the boom used to support the boom when the sail isn't set. |
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Term
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Definition
| A pocket sewn into the sail to hold a battan. |
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Term
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Definition
| A rope sewn into the edge of a sail, often used to attach it to the mast or boom. |
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Term
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Definition
| The adjustable lines used to raise and lower or trim the sails. |
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Term
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Definition
| A line used to raise or lower a sail. |
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Term
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Definition
| The line used to control the main boom and thus also trim the mainsail. |
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Term
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Definition
| A short length of light yarn attached to the sail to indicate the flow of air across it and thus the state of the sail's trim. |
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Term
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Definition
| A mechanism for furling a sail by rolling it around its stay. |
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Term
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Definition
| A fastening device used to connect lines or wire cables to an item of hardware. |
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Term
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Definition
| A line applying a downward force on a spar or sail, e.g. the cunningham on the mainsail that tightens the sail's luff. |
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Term
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Definition
| A line used to tension the luff of a sail. |
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Term
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Definition
| A car-and-track system that allows the mainsheet's attachment point on the deck to be moved athwardships. |
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Term
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Definition
| A metal clip or fabric tab used to attach a sail's luff to a stay. |
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Term
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Definition
| The forward edge of the sail. |
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Term
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Definition
| The bottom edge of the sail. |
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Term
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Definition
| The aft edge of the sail. |
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Term
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Definition
| A slat inserted in the leech of a sail to support the sailcloth. |
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Term
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Definition
| The fluttering of a sail when the boat is too close to the wind for the sail's trim. |
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Term
| to luff / luffing (steering) |
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Definition
| To head up so that the sails luff. |
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Term
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Definition
| The entrance from the cockpit or deck to the cabin. |
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Term
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Definition
| The left-hand side of the boat when looking forward. |
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Term
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Definition
| The right-hand side of the boat when looking forward. |
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Term
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Definition
| Toward the bow or in front of the boat. |
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Term
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Definition
| Toward the stern or behind the boat. |
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Term
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Definition
| The width of a boat at its widest point. |
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Term
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Definition
| To lean sideways under the pressure of the wind on the sails. |
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Term
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Definition
| The depth of the boat below the water. |
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Term
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Definition
| The height of the hull above the waterline. |
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Term
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Definition
| The person who has command of the boat. |
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Term
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Definition
| The person at the helm, steering the boat. |
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Term
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Definition
| All people on board that are not either passengers or the skipper. |
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Term
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Definition
| The tendency of a sailing boat to head up into the wind. |
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Term
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Definition
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Term
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Definition
| Behind the stern of the boat. |
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Term
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Definition
| The direction, or side of the boat, towards the wind. |
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Term
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Definition
| The direction, or side of the boat, away from the wind. |
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Term
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Definition
| Off the boat perpendicular to its center line. |
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Term
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Definition
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Term
| Beam (region on boat's side) |
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Definition
| The region of the boat's sides halfway between bow and stern. |
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Term
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Definition
| The zone in relation to the wind where the sails cannot generate power. |
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Term
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Definition
| A boat that's Head-to-Wind. Point of (no-)sail at 12 o'clock. |
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Term
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Definition
| Having the bow of a boat facing directly into the wind. |
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Term
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Definition
| Point of sail where a boat sails as close to the wind as possible(around 11 and 1 o'clock). |
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Term
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Definition
| The point of sail between Close Hauled and Beam Reach (around 10 and 2 o'clock). |
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Term
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Definition
| Point of sail where the wind is abeam of the boat (at 9 and 3 o'clock). |
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Term
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Definition
| The point of sail between a Beam Reach and Run (around 7:30 and 4:30 o'clock). |
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Term
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Definition
| The point of sail on which the wind is aft (at 6 o'clock). |
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Term
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Definition
| The vessel required to maintain course and speed to avoid a collision. |
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Term
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Definition
| The vessel required to take early and substantial action to avoid a collision by adjusting course and/or speed. |
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Term
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Definition
| Turning a boat so that its bow passes entirely through the no-sail-zone. |
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Term
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Definition
| Turning a boat away from the wind to change from a Port tack to a Starboard tack or vice versa. (Opposite of tacking) |
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Term
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Definition
| An indicator on top of the mast that points towards the direction the wind is coming from. |
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Term
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Definition
| Windward jib sheet (not under load). |
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Term
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Definition
| Leeward jib sheet (under load). |
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Term
| Commands used during tacking |
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Definition
"Prepare to tack!" / "Ready about!"
"Ready"
"Tacking" / "Helm's a-lee"
helmsman moves to new leeward side |
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Term
| Commands used during jibing |
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Definition
"Prepare to jibe!"
"Ready"
helmsman moves to new leeward side
"Jibing" / "Jibe-ho" |
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Term
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Definition
| Sailing on a run with main and jib set on opposite sides. |
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Term
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Definition
| Running dead down wind, just at the point where the sail can catch wind from the "wrong" side, leading to an accidental jibe. |
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Term
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Definition
| Unplanned jibe caused by accidentally changing tacks while on a run. |
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Term
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Definition
| To turn upwind, i.e. the boat's bow towards the direction the wind is coming from. |
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Term
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Definition
| To turn downwind, i.e. the boat's bow away from the direction the wind is coming from. |
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Term
| COBRA sail tuning mnemonic |
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Definition
Cunningham (tension sail's luff)
Outhaul (shape sail's foot)
Boom vang (shape sail's leech by moving boom up or down)
Reefing (reduce sail area in high wind)
All other |
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Term
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Definition
| To lay in even, loose folds. |
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Term
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Definition
| To stow a sail on a spar or stay e.g. with sail ties. |
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Term
| USCG required on-board safety equipment |
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Definition
- PFD for each person on board
- >16ft: throw-able type IV PFD
- >16ft or sailboats >26ft: distress signaling device
- >39ft: sound producing device
- fire hazard: fire extinguisher
- >23ft: navigation lights |
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Term
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Definition
| A description of itinerary, route, vessel, souls on board, etc. left with a dependable person before the trip. |
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Term
| Navigation lights on a sailing vessel > 23ft under sail alone |
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Definition
- 112.5 degree green sidelight starboard
- 112.5 degree red sidelight port
- 135 degree white stern light |
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Term
| Navigation lights on a vessel under power < 39ft under sail alone |
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Definition
- 112.5 degree green sidelight starboard
- 112.5 degree red sidelight port
- 360 degree white light |
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Term
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Definition
| A 225 degree white light mounted partway up the mast and shining ahead, displayed by sailing ships under power (forms 360 degrees together with stern light) |
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Term
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Definition
| 360 degree white light on top of the mast (does not count as steaming light) |
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Term
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Definition
| 360 degree white light required for anchored boats >23 ft outside of designated areas. |
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Term
Quick Reference Rule #2
Right of way in an overtaking situation. |
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Definition
| The vessel overtaking is the give-way-vessel, the overtaken vessel the stand-on-vessel. |
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Term
Quick Reference Rule #1
Right of way of vessel with restricted maneuverability. |
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Definition
| A more maneuverable vessel must give way to a less maneuverable one, i.e. a ferry, fishing vessel, oil tanker, etc. |
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Term
Quick Reference Rule #3
Right of way of powered vessel. |
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Definition
| A power driven vessel is the give-way-vessel on a converging course with a sailing vessel which must give way to self-propelled vessels (e.g. row boats). |
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Term
Quick Reference Rule #4
Right of way two sailboats on different tacks. |
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Definition
| The port tack vessel must give way to the starboard tack vessel. |
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Term
Quick Reference Rule #5
Right of way two sailboats on the same tack. |
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Definition
| The windward vessel must give way to the leeward vessel. |
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Term
Quick Reference Rule #6
Right of way with head-on course. |
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Definition
| Turn starboard to pass port to port. |
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Term
| POW right of way mnemonic |
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Definition
| POWs have no rights - Port tack, Overtaking, and Windward vessels are give way sailing vessels. |
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Term
| Red, Right, Returning mnemonic |
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Definition
| Red (triangular) buoys mark the Right-hand side of a channel when Returning from the sea. |
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Term
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Definition
| A small motorboat, esp. one used for short trips. |
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Term
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Definition
| A crew overboard technique. |
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Term
| "Good Samaritan" provision in the Federal Boating Safety Act of 1971 |
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Definition
| A sailor must assist a vessel in danger to the best of his ability without endangering his vessel or passengers. He is protected from liability or civil damages as a result of his assistance. |
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Term
| Sound signal that indicates a dangerous situation |
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Definition
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Term
| Marine VHF radio channel 16 |
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Definition
| Radio frequency used to initiate contact between ships and/or shore stations and to place distress calls. |
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Term
| Safe water buoy (special) |
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Definition
| Buoy with vertical red and white stripes and white ball on top that indicate a safe approach from all sides. |
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Term
| Regulatory marker buoys (special) |
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Definition
| White, cylindrical buoys with orange stripes above and below a danger, Restricted operation, exclusion, or information symbol. |
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Term
| Junction marker buoy (special) |
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Definition
| Primary color (red or green) indicates preferred channel mark, while a horizontal waist indicates the secondary channel. |
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Term
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Definition
| Floating, anchored navigation aids. Regular buoys have either green color, square shape and odd numbers or red color, tapered shape and even numbers. |
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Term
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Definition
| Knot to form a temporary eye (loop), e.g. to attach the jib sheets to the jib. |
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Term
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Definition
| Tied at the bitter end of halyards and sheets to prevent them from slipping through a fairlead or block. |
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Term
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Definition
| Hitch used to attach a line to a horn or T cleat, e.g. to secure the boats stern line to the dock. |
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Term
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Definition
| Knot to temporary tie a line to a pole or ring. |
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Term
| Round turn and two half hitches |
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Definition
| Knot to tie a line to a pole or ring. |
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Term
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Definition
| Knot used to tie together two lines of equal diameter. |
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Term
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Definition
| Knot used to tie a line to the standing part of another line or to spar. |
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