An anchor is said to bite when the flukes dig themselves into the ground and hold firm without dragging.

The highest navigation bridge. It usually includes an added set of controls above the level of the normal control station for better visibility.

Running directly before wind and sea.

In sailboat racing, to take to opposite tack of the rest of the fleet when behind, hoping that the wind will shift to your benefit.

A common measurement of the internal volume of a ship with certain spaces excluded. One ton equals 100 cubic feet; the total of all the enclosed spaces within a ship expressed in tons each of which is equivalent to 100 cubic feet.

Also known as (U.S.) Federal Bill of Lading Act of 1916. U.S. federal law enacting conditions by which a B/L may be issued. Penalties for issuing B/L's containing false data include monetary fines and/or imprisonment.

BTU. The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit under set conditions of temperature and pressure.

Fluid cooling agent.

Fresh bread.

freezing of a piston ring in its groove in a piston engine or reciprocating compressor due to heavy deposits in the piston ring zone.

First voyage of a ship.

The speed needed for a boat to begin planing.

The basic unit of measurement for lumber. One board foot is equal to a oneinch board, 12 inches wide and one foot long. Thus, a board ten feet long, 12 inches wide, and one inch thick contains ten board feet.

PSI - Pounds per square inch.

Is the temperature at which oil begins to flow under prescribed conditions.

The highest unlicensed rating in the deck department who has immediate charge of all deck hands and who in turn comes under the direct orders of the master or chief mate or mate.

An object made with more than one type of material.

To move ahead swiftly. To move ahead of another vessel quickly when underway.

Achieved when the air compressor is running at full RPM with a fully opened inlet and discharge, delivering the maximum volume at the rated pressure.

Blocks of wood made to fit in the hawse-holes, or holes in the half-ports, when at sea. Those in the hawse-holes are sometimes called hawse-blocks.