Small, steep disorderly waves at rapid intervals.

A support wire running from the upper part of the mast to the bow of the boat designed to pull the mast forward. A forestay that attaches slightly below the top of the mast can be used to help control the bend of the mast. The most forward stay on the boa ...

Used in meteorology to describe boundaries between hot and cold air masses. This is typically where bad weather is found.

The state of a vessel when she is so loosened as to droop at each end.

Straps to hook your feet under in cockpit when hiking out.

A certificate issued by the U.S. Department of Agriculture to satisfy import regulations of foreign countries; indicates that a U.S. shipment has been inspected and found free from harmful pests and plant diseases.

A stationary element that may be adjustable and which directs the flow medium to the inlet of an impeller.

The horsepower input to the compressor shaft, or more generally to any driven machine shaft.

An urgent message used on a radio regarding the safety of people or property. A PAN PAN message is not used when there is an immediate threat to life or property, instead the MAYDAY call is used. PAN PAN situations may develop into MAYDAY situations. As w ...

A call on the bo'sun's pipe at night for the hands to turn in, for silence in the messdecks, and for lights to be extinguished. Also a term used by a sailor to another to make them stop talking.

A harbor restriction placed on a ship which has an infectious disease on board, or which has arrived from a country where such a disease is prevalent. The crew may not go ashore until the ship is granted pratique.

To take a boat into water that is too shallow for it to float in, i.e: the bottom of the boat is resting on the ground.

The act of calling for freight by truck at the consignor's shipping platform.

See standard air.

An order to hold a vessel on the course she is heading.

Said of a boat which turns end over end in very rough seas.

A dust-collection chamber containing numerous permeable fabric filters through which the exhaust gases pass. Finer particulates entrained in the exhaust gas stream are collected in the filters for subsequent treatment/disposal.

Bank that opens a straight or negotiable letter of credit and assumes the obligation to pay the bank or beneficiary if the documents presented are in accordance with the terms of the letter of credit.

Thin sheets of copper applied to the hull of a wooden ship below the waterline to prevent the toredo worm eating the planks, and also to limit the growth of weed, barnacles or other marine life.

2,000 pounds.