A four sided sail bent onto a yard. Similar to a gaff sail, but with a wider throat.

Forward. The opposite of abaft.

A small bag for carrying or stowing all personal articles.

The ratio of the isothermal power consumption to shaft input.

The unofficial filtration industry description for filters designed to trap small size contaminants.

A U-shaped fitting closed with a pin across the open ends, the pin sometimes being threaded at one end and sometimes held in place with a cotter pin, and used to secure sails to lines or fittings, lines to fittings, fittings to fittings, anchors to chain, ...

The locker in which the bos'n keeps his deck gear.

Heavy weight,which gives a ship stability when the vessel is not carrying cargo.

A form of steam engine where a piston moves back and forth inside a cylinder, transmitting its motion to a driving shaft by a connecting rod and crank.

Heavy, linked chain secured to an anchor for mooring or anchoring.

A large heavy knot usually made in the end of a heaving line to aid in accurate throwing.

see Bream

A propulsion system for boats with an inboard engine operating an exterior drive, with drive shaft, gears, and propeller; also called stern-drive and inboard/outboard.

A gangway or gangplank. Used to cross from one ship to another, or from a ship to a pier.

The standard atmosphere is defined as the pressure exerted by a column of mercury 760 mm high with a density of 13,595 g/cm

Shipment of goods to a foreign country.

Chocks which hold and anchor in place either in a locker or on deck.

The use of a sound barrier separating the sound from the receiver.

(1) The transverse measurement of a boat at its widest point. Also called breadth. (2) One of the transverse members of a ship's frames on which the decks are laid.

Old seafaring term meaning something very difficult or awkward. see Devil