Glossary Archive

Visibility reduced to less than 1000 metres (approximately 0.5 nautical miles)

Fog horns are used for sounding the appropriate sound signal whilst in restricted visibility

A propeller with folding blades, furling to reduce drag on a sailing vessel when not in use

Seas that are moving in the same direction as the vessel is heading

The lower edge of a sail, typically attached to the boom or deck of a sailing vessel. The term foot refers to the bottom edge of a sail. On a fore-and-aft rigged sail, such as a mainsail or jib, the foot is the edge that runs along the boom or, in the case of some...

Parallel line between the stem and stern

The forward part of a vessel's deck, located towards the bow and often used for anchoring, mooring, or storage. The foredeck is a critical area on a boat or ship, situated at the frontmost section of the vessel's deck, near the bow. Its size and configuration can vary significantly depending on the type and purpose...

A hatch, usually in the foredeck

The most forward compartment in the bows of the vessel

The headsail set on the forestay