The distance from the surface of the water to the main deck or gunwale.

The frame of a container constructed to hold one or more thermally insulated tanks for liquids.

Two short pieces of timber fixed horizontally fore and aft on each side of the lower masthead of a square rigged vessel and used to support the topmast, the lower crosstrees, and the top.

The distance the ship's side falls in towards the center line above the load water line. Opposite of flare.

Under ICC and common law, the requirement that a rate not be higher than is necessary to reimburse the carrier for the actual cost of transporting the traffic and allow a fair profit.

Any point of sail with the wind coming from the side of the boat. If the wind is coming from directly over the side, it is a beam reach. If the wind is coming from forward of abeam it is a close reach. If the wind is coming from over the quarter, it is ca ...

Break; e.g., the line parted under strain

An anchor that is designed to bury itself into the ground by use of its plow shape. Also called a plow anchor.

A multihulled boat with three hulls.

A metal appliance consisting of a thread and screw capable of being set up or slacked back and used for setting up on rigging.

Vibration isolation mount. Provides reductions in vibration transmission.

A method of storing a sail, e.g., by rolling the jib around the headstay.

A course steered by the compass that has been corrected for variation and deviation

Cubic feet per minute (cfm) of air required at the inlet to the distribution system.

Electro-mechanical steering device; an instrument designed to control automatically a vessel's steering gear so that she follows a pre-determined track through the water.

Determination of the dutiable value of imported merchandise by a Customs official who follows procedures outlined in their country's tariff, such as the U.S. Tariff Act of 1930.

A traditional maritime saying to indicate that it is time for a morning drink, it was generally assumed that in northern latitudes the sun would show above the foreyard of a ship by 11.00 which was approximately the time in many ships of the forenoon "sta ...

Cargo delivered to/from the carrier where origin/destination of the cargo is in the local area.

A position based on estimations of a boat's position using estimated speed, currents, and the last known position/fix - of the boat.

In wooden ship construction, these were cylindrical pins of oak which were used to secure the planks to her timbers. Pronounced "trennels".