TOW. To draw a vessel along by means of a rope. TRAIN-TACKLE. The tackle used for running guns in and out. TRANSOMS. (See PLATE 3.) Pieces of timber going across the stern-post, to which they are bolted. TRANSOM-KNEES. Knees bolted to the transoms and after timbers. TRAVELLER. An iron ring, fitted so as to slip up and down a rope. TREENAILS, or TRUNNELS. Long wooden pins, used for nailing a plank to a timber. TREND. The lower end of the shank of an anchor, being the same distance on the shank from the throat that the arm measures from the throat to the bill. TRESTLE-TREES. Two strong pieces of timber, placed horizontally and fore-and-aft on opposite sides of a mast-head, to support the cross-trees and top, and for the fid of the mast above to rest upon. TRIATIC STAY. A rope secured at each end to the heads of the fore and main masts, with thimbles spliced into its bight, to hook the stay tackles to. TRICE. To haul up by means of a rope. TRICK. The time allotted to a man to stand at the helm. TRIM. The condition of a vessel, with reference to her cargo and ballast. A vessel is _trimmed_ by the head or by the stern. _In ballast trim_, is when she has only ballast on board. Also, to arrange the sails by the braces with reference to the wind. TRIP. To raise an anchor clear of the bottom. TRIPPING LINE. A line used for tripping a topgallant or royal yard in sending it down. TRUCK. A circular piece of wood, placed at the head of the highest mast on a ship. It has small holes or sheaves in it for signal halyards to be rove through. Also, the wheel of a gun-carriage. TRUNNIONS. The arms on each side of a cannon by which it rests upon the carriage, and on which, as an axis, it is elevated or depressed. TRUSS. The rope by which the centre of a lower yard is kept in toward the mast. TRYSAIL. A fore-and-aft sail, set with a boom and gaff, and hoisting on a small mast abaft the lower mast, called a _trysail-mast_. This name is generally confined to the sail so carried at the mainmast of a full-rigged brig; those carried at the foremast and at the mainmast of a ship or bark being called _spencers_, and those that are at the mizzenmast of a ship or bark, _spankers_. TUMBLING HOME. Said of a ship's sides when they fall in above the bends. The opposite of _wall-sided_. TURN. Passing a rope once or twice round a pin or kevel, to keep it fast. Also, two crosses in a cable. _To turn in_ or _turn out_, nautical terms for going to rest in a berth or hammock, and getting up from them. _Turn up!_ The order given to send the men up from between decks. TYE. A rope connected with a yard, to the other end of which a tackle is attached for hoisting. UNBEND. To cast off or untie. (See BEND.) UNION. The upper inner corner of an ensign. The rest of the flag is called the _fly_. The _union_ of the U.S. ensign is a blue field with white stars, and the _fly_ is composed of alternate white and red stripes.