Said of a vessel when caught between ice on both sides.

A comparison of a carrier's operating expense with its net sales. The most general measure of operating efficiency.

The vertical pole or spar that supports the boom and sails. a mast on a mechanically propelled vessel holds electronics antennas, lights, etc.

A compressed air coupling commonly used on European rail and road vehicles to connect one vehicle to the next.

A party responsible for the payment as evidenced by the given instrument. Under letters of credit, the payer is the party on whom the draft is drawn, usually the drawee bank.

Isolated rocky peak rising from a sheet of inland ice.

40 cubic feet.

To let go.

Foaming water that rises upward immediately before stem of any craft being propelled through water.

In charge of twelve to four watch. Ships navigation officer. Keeps charts (maps) up to date and monitors navigation equipment on bridge.

Unit of free air flow rate. Normal cubic meter per hour. The air in the following conditions:1.013 bar(a) of pressure; 0 degrees Celsius of temperature and 0% of relative humidity .

Shore crane with a wide span.

Surrounded by land.

The bottom of the mast, with a shape designed to fit into the mast step.

A bun-shaped cover placed over a radar scanner to prevent risk of fouling and to protect it from the weather.

The temperature of a body referred to the absolute zero, at which point the volume of an ideal gas theoretically becomes zero. (Fahrenheit scale is minus 459.67

ACRONYM - National Pipe Thread tapered. A description of a specific pipe thread

Cool air pulled ashore by rising thermal air currents caused by the air inland rising as the land heats up

Loaded with more cargo than a ship can safely navigate with. Drunk.