A common measurement of the internal volume of a ship with certain spaces excluded. One ton equals 100 cubic feet; the total of all the enclosed spaces within a ship expressed in tons each of which is equivalent to 100 cubic feet.

Sails that lie in the direction of the ship's length and whose luffs abut the masts or are attached to stays.

C The international temperature scale where water freezes at 0 (degrees) and boils at 100 (degrees). Also known as the centigrade scale.

First voyage of a ship.

A built in mechanical device to recover a portion of the power consumed by a constant speed centrifugal compressor when operating at reduced capacity or reduced pressure rise, or both.

Center point of all underwater area of the hull where the hull's lateral resistance can be said to be centered.

A ball shaped buoy marking a navigational hazard.

A device that indicates pressure differential above or below atmospheric pressure.

A bollard with horizontal arms, forming the shape of a cross, as a means of belaying lines.

(1) The flag traditionally flown by pirate ships. (2) The name given by sailors to the bubonic plague, whose victims were said to turn black.

A bend or hitch used to attach a line to a ring or spar so that by pulling the end of the line, the hitch will come free. This is done by passing a bight of the line under the other part so that when strain is applied the bight is jammed. A pull on the en ...

A power or sailing boat used by pi-lots (men who have local knowledge of navigation hazards of ports).

An organization established by the members of an ocean conference acts as a self-policing force with broad authority to investigate tariff violations, including authority to scrutinize all documents kept by the carriers and their personnel. Violations are ...

Small, circular sheets of newly-formed ice that do not impede navigation.

A machine used to pick up and move goods loaded on pallets or skids.

Heavy canvas used as a covering.

Light-weight foresail similar to a spinnaker but set without a pole.

A marine hardware store.

Port of initial Customs entry of a vessel to any country. Also known as First Port of Call.

The senior engineer officer responsible for the satisfactory working and upkeep of the main and auxiliary machinery and boiler plant on board ship.