Media of heat transfer in a refrigeration unit. R12 and R22 are commonly used refrigerants.

A canvas canopy secured over the ship's deck as a protection from the weather (covering).

A halyard used to raise the spinnaker.

The Customs tariff used by most countries worldwide. It was formerly known as the Brussels Tariff Nomenclature and is the basis of the commodity coding system known as the Harmonized System.

Name given to the metal point or ram fixed on the bows of old war galleys and used to pierce the hulls, and thus sink or disable enemy ships.

The settings on a pressure switch used to either load or unload the air compressor on a constant speed application, or start or stop the compressor on a start/stop application. The cut out pressure is also known as the maximum pressure, or the point at wh ...

The dimensions of all parts which go into the construction of a ship's hull.

Remove a boat from the water.

A ship designed to carry all types of general cargo, or "dry cargo."

A smooth hard wood grown in the West Indies which had many maritime uses, such as deadeyes and the sheaves of blocks. Its hardness stood up well to wear, and its smoothness allowed lines to render through easily.

A tiller that is designed to be used in the event that wheel steering fails.

On a square-rigged ship, the area between the after end of the forecastle and the forward end of the booms where lines, blocks, and tackle were stored.

Columnar support for the steering wheel in the cockpit.

Supporting braces made into a right angle, used for strength when two parts are joined.

Deeper forward (front end deepest in water).

Describing a small or confined space. Originated from the time when a cat-o'-nine-tails was used to inflict punishment.

Any boat built to certain standards or rules so that is like all others in the same class.

Hauled out of the water for repairs or storage

A slang term for an open-top trailer or container with a tarpaulin cover.

Is the ratio of actual capacity to piston displacement, stated as a percentage.