APPENDIX
Jiffy reef - a quick reefing system allowing a section of the mainsail to be tied to the boom. Jury rig - an improvised, temporary repair.
K (Kilo) Kedge off - to use an anchor to pull a boat into deeper
water aſter it has run aground.
Keel - the heavy vertical fin beneath a boat that helps keep it upright and prevents it from slipping side- ways in the water.
Ketch - a two-masted boat with its mizzen (aſter) mast shorter than its mainmast and located forward of the rudder post. King spoke - a marker on the steering wheel which indicates when the rudder is centered. Knockdown - a boat heeled so far that one of its spreaders touches the water.
Knot - one nautical mile per hour.
L (Lima) Land breeze - a wind that blows over land and out to sea.
Lash - to tie down. Lay - to sail a course that will clear an obstacle without tacking. Lazarette - a storage compartment built into the deck. Lazy sheet - the windward side jib sheet that is not under strain.
Lead (LEED) - to pass a line through a fitting or a block. Lee helm - the boat’s tendency to turn away from the wind.
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.
Leech - the aſter edge of a sail. Leech line - an adjustable cord sewn into the back edge of a sail to prevent fluttering Leeward - (LEW-erd) - the direction away from the wind (where the wind is blowing to). Leeward side - the side of the boat or sail that is away from the wind. Leeway - sideways slippage of the boat in a direction away from the wind. Lifeline - plastic coated wire, supported by stanchions, around the outside of the deck to help prevent crew members from falling overboard. Lifesling - a floating device attached to the boat by a length of floating line that doubles as a hoisting sling to retrieve a PIW in the water.
Liſt - 1. - the force that results from air passing by a sail, or water past a keel, that moves the boat forward and sideways. 2. - a change in wind direction which lets the boat head up.
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Line - rope in use on a boat. Line stoppers - levered cleats which hold lines under load and can be released easily. Low side - the leeward side of the boat. Lubber’s line - a small post in a compass used to help determine a course or a bearing. Luff - 1. - the forward edge of a sail.
2. - the fluttering of a sail caused by aiming too close to the wind.
Lull - a decrease in wind speed for a short duration.
M (Mike) Magnetic - in reference to magnetic north rather than
true north. Mainmast - the taller of two masts on a boat. Mainsail (MAIN-sil) - the sail hoisted on the mast of a sloop or cutter or the sail hoisted on the mainmast of a ketch or yawl. Mainsheet - the controlling line for the mainsail. Marlinspike - a pointed tool used to loosen knots. Mast - the large aluminum or wooden pole in the middle of a boat from which the mainsail is set. Master switch - see battery switch. Masthead - the top of the mast. Masthead fly - a wind direction indicator on top of the mast. Mast step - the structure that the bottom of the mast sits on. Mayday - the internationally recognized distress signal for a life-threatening emergency. Mizzen - the small aſtermost sail on a ketch or yawl hoisted on the mizzen mast. Mooring - a permanently anchored ball or buoy to which a boat can be tied.
MSD - marine sanitation device, including toilet, hold- ing tank and connecting lines and valves.
N (November) Nautical mile - a distance of 6076 feet, equaling one
minute of the earth’s latitude. Navigation Rules - laws established to prevent collisions on the water. No-Go Zone - an area into the wind in which a boat cannot produce power to sail.
Nun - a red, even-numbered buoy, marking the right side of a channel as you return to port. Nuns are usually paired with cans.
O (Oscar) Offshore wind - wind blowing off (away from) the
land. Offshore - away from or out of sight of land.
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