A board-shaped swinging vane, controlled by a tiller or wheel, and attached to the rudderpost or stern for steering and maneuvering a vessel.

To stow or secure in a safe place. A top-mast is housed by lowering it and securing it to a lowermast.

An imaginary sphere surrounding the globe that contains the sun, moon, stars and planets.

Water service between two coasts; in the U.S., this usually refers to water service between the Atlantic and Pacific or Gulf Coasts.

Making a ship just as it is about to sail.

A bridge that swings away from the waterway so that boats may pass beside it.

The weight of water vapor in the air vapor mixture per pound of dry air.

A sail placed forward of the mast, such as a jib; the sail set from the foremast on a schooner; the lowest square sail on the foremast of Square Riggers.

Sailing too close to the wind

An arc of a circle in which certain types of navigational lights known as sector lights are visible.

A contract term meaning both parties agree to provide something for the other.

The pressure encountered on the return side of a system.

Single tariff item, established to move multiple commodities needed for a specified project, usually construction.

Shanties are the work songs that were used on the square-rigged ships of the Age of Sail. Their rhythms coordinated the efforts of many sailors hauling on lines.

The recognition of a person by his recognizable characteristics (originally, the shape of the nose)

Compressor controls will run the compressor at varying loads to accommodate demand variations. Running a compressor at less than full load results in a drop in compressor efficiency and thus an increase in operating costs.

A moment of time which could be measured by the shaking of a sail as a sailing ship comes into the wind.

The removal of heat from the air or gas between stages.

Still, seaworthy, able.

Goods from a captured ship which was permitted to be distributed among the captors at once.