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.

Air or vapor given off or expelled as a byproduct or result of an operation or treatment process.

When the distance between the wave crests is less than normal.

Flapping (of sails)

Galley smokestack or chimney.

The turbulent effect of air on the lee side of a sail when trimmed in too far.

A legally binding agreement between two or more persons/organizations to carry out reciprocal obligations or value.

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

A rope sewn into the luff or foot of a sail for use in attaching to the mast or boom.

The point of equilibrium of the total weight of a containership, truck, train or a piece of cargo.

A valve which enables pressure to be reduced, or kept constant at a desired level.

Canvas or wood seat attached a halyard to raise and lower someone to work on the mast

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.

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.

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

A sudden squall of wind accompanied by lightning.

A board that can be raised and lowered by pivoting in a watertight box called the trunk or well to increase the draft and lateral area of the hull, preventing the boat from sliding sideways. Unlike a daggerboard, which lifts vertically, a centerboard pivo ...

A person or firm performing a consolidation service for others. The consolidator takes advantage of lower full carload (FCL) rates, and savings are passed on to shippers.

The speed needed for a boat to begin planing.

PSI - Pounds per square inch.