APPENDIX
Topsides - 1. Te sides of the hull between the water- line and the deck. 2. Said of people or objects that are not below. See below. Transom - the vertical surface of the stern. Traveler - a track or bridle that controls sideways (athwartships) movement of the mainsail.
Trim - 1. - to pull in on a sheet. 2. - how a sail is set relative to the wind. Trimaran - a three-hulled sailing vessel. True wind - the actual speed and direction of the wind when standing still.
Tune - to adjust a boat’s standing rigging. Turnbuckle - a mechanical fitting attached to the lower ends of stays, allowing for the standing rigging to be adjusted.
U (Uniform) Underway - a vessel is underway when it is not at
anchor, not aground, and not made fast to a dock or a mooring.
Unrig - to stow sails and rigging when the boat is not in use. Upwind - toward the direction of the wind. USCG - abbreviation for U.S. Coast Guard.
V (Victor) Vang - see boom vang.
Vee-berth - a bunk in the bow of the boat that narrows as it goes forward.
Veer - a clockwise change of wind direction. Vessel - any sailboat, powerboat or ship. VHF- abbreviation for Very High Frequency, a two- way radio commonly used for boating.
W (Whiskey) Wake - waves caused by a boat moving through the
water.
Waterline - the horizontal line on the hull of a boat where the water surface should be. Weather helm - the boat’s tendency to head up toward the wind, which occurs when a sailboat is overpowered. Weather side - see windward side. Whip - to bind together the strands at the end of a line. Whisker pole - a pole, temporarily mounted between the mast and the clew of a jib, used to hold the jib out and keep it full when sailing downwind. White caps - waves with foam tops. Winch - a deck-mounted drum with a handle offering mechanical advantage used to trim sheets. Winches may also be mounted on the mast to assist in raising sails.
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Windage - the amount of surface area, including sails, rigging and hull, that’s presented to the wind. Windward - toward the wind. Windward side - the side of a boat or a sail closest to the wind.
Wing-and-wing - sailing downwind with the jib set on the opposite side of the mainsail. Working sails - the mainsail and standard jib. Working sheet - on a sail with two sheets, the sheet tensioned by the wind.
X (X-Ray)
Y (Yankee) Yawl - a two-masted boat with its mizzen (aſter) mast shorter than its mainmast and located aſt of the rudder post. Y-valve - a double valve used to redirect water flow.
Z (Zulu)
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