Having no sails up. In heavy weather the windage of the mast and other spars can still be enough to move the boat.

Dining room facilities and kitchen for crew separate from the passenger dining room and kitchen.

The compression of an air actuator (air spring) below its design height.

The bridge used for taking observations, or directing the handling of the ship.

Nautical name for an anchor. Originally, was a stone used as an anchor.

The direction to which a compass points. Magnetic north differs from true north because the magnetic fields of the planet are not exactly in line with the north and south poles. Observed differences between magnetic and true north is known as magnetic var ...

a circular donut-shaped buoy designed to support a person in the water. It is attached to the vessel with a (floating) line so that the person can be hauled back to the boat.

To break loose from a mooring, anchor or docking.

Small staysail located between the foremast and mainmast.

(1) In good condition. (2) To adjust to proper shape or size.

Sea water used for ballast, let into the double bottom, or into a water-ballast tank, or trimming tanks.

A ton on which the shipment is freighted. If cargo is rated as weight or measure (W/M), whichever produces the highest revenue will be considered the revenue ton. Weights are based on metric tons and measures are based on cubic meters. RT=1 MT or 1 CBM.

A large foresail or jib that overlaps the mainsail. Also known as a genny. Can be expressed in percentages of overlap, e.g. 150 Genoa is 50% overlap of the mainsail.

Uncharted navigational danger that has been reported but has not been verified by survey.

The toal temperature at the intake flange of the compressor.

Broadly, insurance covering loss or damage of goods at sea. Marine insurance typically compensates the owner of merchandise for losses sustained from fire, shipwreck, etc., but excludes losses that can be recovered from the carrier.

Is the ratio of the computed isentropic temperature rise to the measured total temperature rise during compression.

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

The country in which the vessel is registered.

To haul in or bind something together in order to create more space.