U.S. Customs' automated program under AMS. It allows for electronic reporting of inbound (foreign) cargoes in the U.S.

An abbreviation of forecastle.

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

Recapitulation of the terms and conditions agreed

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

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.

The country in which the vessel is registered.

A sailing ship with three to five masts, all of them square-rigged except the after mast, which is fore-and-aft rigged.

Direct current. A continuous, one directional flow of electricity

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 ...

To break loose from a mooring, anchor or docking.

Is a gas that follows the perfect gas laws without deviation. There is no such thing, however it is the basis from which calculations are made and corrections applied.

A bulkhead that will not let water pass from one side of it to the other.

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.

Small staysail located between the foremast and mainmast.

A barge equipped with tracks on which up to about 12 railroad cars are moved in harbors or inland waterways.

A sailor's trunk; the intake between the ship's side and a sea valve.

Ropes hung and used for assistance in ascending and descending.

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

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