A sail attached to the boom at the tack and clew, but not along the foot, or a fore-and-aft sail which is set without a boom.

A metal fitting on the mast that the stays attached to the mast; a fitting on the mast for securing rigging.

Clearance by the Health Authorities.

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

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.

Seaman's name for a reef knot tied upside down. also called a "granny" knot.

Transverse members fitted to the bottom side rails of a container, which support the floor.

To throw an oar out of the rowlock, and raise it perpendicularly on its end, and lay it down in the boat, with its blade forward.

The bearing which supports the propeller shaft where it emerges from the ship.

The power required at the compressor drive shaft. Losses in external transmissions such as gears and belt drives are not included.

The area of sea not under the sovereignty of nations with a seaboard.

2,240 pounds (1016.05 kilograms)

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

An ocean carrier company operating vessels not on regular runs or schedules. They call at any port where cargo may be available.

see Holystone

Wooden shoulders attached below the masthead to either side of a wooden mast which originally supported the trestle trees.

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 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.

Running ashore (hitting the bot-tom).

A device designed to enable accumulated liquids to be held for draining in a compressed air system.