The small triangular space found at the intersection of lines of position on a chart when a ship's position is determined by taking three bearings.

Warehouse Withdrawal for Transportation Immediate Exportation.Allows merchandise that has been withdrawn from a bonded warehouse at one U.S. port to be exported from the same port exported without paying duty.

Is a technique for predicting whether water will tend to dissolve or precipitate calcium carbonate. If the water precipitates calcium carbonate, scale forming may result. If the water dissolves calcium carbonate, it has a corrosive tendency.

A suitable beach, being steep and sandy, where ships could be careened for cleaning or repair.

The ability of a boat to keep from being moved sideways by the wind. Keels, daggerboards, centerboards, and leeboards are all used to improve a boat's lateral resistance.

see Gybe

Light, bulky articles.

Also VMG. Actual boat speed after adjusting for such factors as current and leeway.

A timber or rib of a ship running from the keel to the side rail; the transverse strengthening members in a ship's hull that extend from the keel to the deck or gunwale. The frames form the shape of the hull and act as a skeleton on which the hull plankin ...

Cargo thrown overboard in order to lighten the ship and washed ashore.

The principal sail that is set on the main mast.

The framework of timber, etc., on which a vessel is built, from which she is launched into the water.

On square-rigged ships, the lines which are lead from the masthead to the ends of the yards to support them.

A method of docking with a boat's stern to the dock.

A small rail on tables and counters used to keep objects from sliding off when the vessel rolls and pitches.

A platform with or without sides, on which a number of packages or pieces may be loaded to facilitate handling by a lift truck.

A compressor cooled by atmospheric air circulated around the cylinders or casing.

Annual publication of astronomical data for the use of navigators.

A sprocket wheel on the windlass for taking links of the chain cable.

A condition where the particles (dust) becomes embedded in the fabric filter over time and are not removed by the bag cleaning process.