Little or no wind and flat seas

The tendency of the strands of a line to fray out at the ends.

Light, bulky articles.

Measuring point for compressor acceptance test. Pressure before an orifice or nozzle, downstream of compressor discharge.

A pump which is used to deliver air to the aquarium. The pump pushes air through silicon tubing and to air stones or other aquatic decor. They are also an essential for UGF's (undergravel filters). An air stone is placed in each clear tube. When the air b ...

A day for general ship cleaning.

Inlet butterfly valve. These are fitted on the inlet of most types of compressor and the valve opens and closes to throttle the air flow. However, the term IBV is usually associated with turbo compressors.

The ship's water closet (toilet or wash-room). The upper edge of a quadrilateral sail.

The fitting in the bottom of the boat in which the bottom or heel if the mast sits.

see Gybe

(Delivered Ex Quay, [Duty Paid]) (...Named Port of Destination):A Term of Sale which means the DDU term has been fulfilled when the goods have been available to the buyer on the quay (wharf) at the named port of destination, cleared for importation. The s ...

A pear-shaped, grooved metal fitting around which an eye splice is made

A grooved metal extrusion fitted on a forestay and used to secure the luff of a sail by holding its bolt rope in place.

The person who is in charge of a vessel and legally responsible for it and its occupants.

The line by which a boat is connected to a mooring buoy; a short rope hanging from a spar having at its free end a spliced thimble or a block. Sometimes called "Pennant".

Namely. Used in tariffs to specify commodities.

To bring to a sudden stop.

A suitable beach, being steep and sandy, where ships could be careened for cleaning or repair.

See Intracoastal Waterway.

A crack or hole that accidentally admits a gas or lets it escape.