A line on the compass aligned with the centerline of the vessel that indicates the vessel's compass heading. Since it points to the vessel's bow, it enables a course to be steered by bringing the lubber's line to the point on the compass card which indica ...

The international carrier is obligated to make declarations of the ship's crew and contents at both the port of departure and arrival. The vessel manifest lists various details about each shipment by B/L number. Obviously, the B/L serves as the core sourc ...

Are any material with an affinity for moisture. These analyzers use sensing elements that contain moisture adsorbing material. A change in the moisture content of the element is detected by an electric network and is used as a measurement of dew point

A shifting of the wind direction, opposite of backing. Clockwise in the northern hemisphere, counter-clockwise in the southern hemisphere.

To revolve the drum of a capstan, winch or windlass. (Pulling with mechanical deck heaving gear).

Bar gauge (similar to the acronym "psig")

Generally speaking the word amidships means in the middle portion of a vessel.

The total gas pressure (static plus velocity).

Ship supplies.

The falling tide when the water recedes out to the sea and the water level lowers; a period or state of decline.

A deviation to move cargo on the return leg of a voyage for the purpose of minimizing ballast mileage and thereby reducing transportation costs.

(1) A sailing vessel common in the Far East. It's flat-bottomed, high sterned, has square bows, and has two or three masts carrying lugsails. (2) Old and condemned rope.

The situation of a vessel when listed over by the wind to such an extent that she does not recover.

Term for disabled vessel that had to fall out of a convoy and thus became easy prey for submarines.

A navigation instrument used to measure the apparent height of a landmark whose actual height is known, such as the top of a lighthouse. From this information, the ship's distance from that landmark can be calculated.

An old name for high waves when they break with a white crest.

A temporary repair or replacement using improvised materials and parts.

To remove water from the boat by hand, bucket, pump etc.

To let the sheet out slowly while maintaining control.

Term for a seaman's short leave from his ship, permitting him to go ashore for the day or night.