On wooden vessels, the frames or ribs of a ship, connected to the keel, which give shape and strength to the ship's hull.

A draft to which no documents are attached.

The power which is theoretically required to compress a gas under constant entropy from a given inlet pressure to a given discharge pressure. (calculated assuming ideal conditions).

Ice in an area containing several small pieces of floating ice, but with total water area exceeding total area of ice.

A certificate issued by an independent agent or firm attesting to the quality and/or quantity of the merchandise being shipped. Such a certificate is usually required in a letter of credit for commodity shipments.

Erecting the mast on the boat. The Mast Step is a fitting which supports the bottom end of the mast at the deck or keel.

This property is the ratio of the specific weight of air or gas to that of dry air at the same pressure and temperature.

A preparatory order (wait

The actual work required to compress and deliver a given gas quantity, including all thermodynamic, leakage and fluid friction losses. It does not include mechanical losses.

Insoluble material suspended in the lubricating oil. This material may come from contamination or oil degradation.

Sailing term used to indicate a sailing vessel underway with no headsails set.

A bunk which runs under the cockpit

An area of low barometric pressure. The wind circulates clockwise in the Southern Hemisphere and counter-clockwise in the Northern Hemisphere. Generally these are bad weather systems.(2)A severe recession over a lengthy.

Steady regular winds in a belt approximately 30

The space between any decks.

Reservation number used to secure equipment and act as a control number prior to completion of a B/L.

A person who arranges for transportation of loads for a percentage of the revenue from the load.

Maximum pressure a vessel, or air filter housing will withstand without bursting.

ACRONYM - Canadian Standards Association

1,728 cubic inches. A volume contained in a space measuring one foot high, one foot wide and one foot long.