Glossary Archive

Goose-winged is a sailing term that refers to a sailing vessel with its mainsail set on one side of the boat and the headsail (jib or genoa) set on the opposite side. This configuration is used when sailing downwind, allowing the sails to catch the wind from both sides of the boat, resembling the outstretched...

To set the mainsail on one side of the vessel and the headsail on the other when running

The US-based system of satellites, able to determine the latitude and longitude of a receiver on Earth by calculating the time difference for signals from different satellites to reach the receiver. GPS is part of the GNSS solution for positioning used by chart plotters and other positioning devices.

Rails fitted above and below decks to grab at when the vessel heels

The mean solar time at the Prime Meridian in Greenwich, London, used as a global time standard. Greenwich Mean Time (GMT) is a timekeeping system that started at the Royal Observatory in Greenwich, London, and acts as a reference point for global time zones. It is based on the mean solar time at the Prime...

A general term for the anchors, cables and all the gear required when anchoring

A fibre reinforced polymer made of a plastic matrix reinforced by fine fibres of glass. GRP is a lightweight, extremely strong, and robust material.

Safety line fitted round the vessel to prevent the crew falling overboard

A safety barrier installed along the edges of a vessel’s deck to prevent crew or passengers from falling overboard. This essential feature on boats and ships usually consists of horizontal wires, ropes, or metal bars supported by stanchions along the deck’s perimeter. Its main purpose is to provide a physical barrier that helps prevent accidental...

The upper edge or rim of a boat's side, often serving as a structural reinforcement and a mounting point for fittings or equipment. The term "gunwale" (pronounced "gunnel") originates from the days of sailing ships when this part of the vessel was reinforced to support the weight and recoil of mounted guns or cannons. Today,...