Thwarts. The seats going across a boat, upon which the oarsmen sit.

Thwartships. (See Athwartships.)

Tide. To tide up or down a river or harbor, is to work up or down with a fair tide and head wind or calm, coming to anchor when the tide turns.

Tide-rode. The situation of a vessel, at anchor, when she swings by the force of the tide. In opposition to wind-rode.

Tier. A range of casks. Also, the range of the fakes of a cable or hawser.

The cable tier is the place in a hold or between decks where the cables are stowed.

Tiller. A bar of wood or iron, put into the head of the rudder, by which the rudder is moved.

Tiller-ropes. Ropes leading from the tiller-head round the barrel of the wheel, by which a vessel is steered.

Timber. A general term for all large pieces of wood used in ship-building. Also, more particularly, long pieces of wood in a curved form, bending outward, and running from the keel up, on each side, forming the ribs of a vessel. The keel, stem, stern-posts and timbers form a vessel's outer frame. (See Plate 3.)

Timber-heads. (See Plate 3.) The ends of the timbers that come above the decks. Used for belaying hawsers and large ropes.