Glossary
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TermDefinition
- General Nautical Terminology, Navigation S-100 Universal Hydrographic Data Model
An international standard developed by the International Hydrographic Organization (IHO) for the management, exchange, and interoperability of...
More Details - General Nautical Terminology Sacrificial AnodeA zinc plate fastened to the hull to prevent corrosion of metal fittings on the hull
- Courses, RYA Safe and Fun SafeguardingThe RYA Safe and Fun Safeguarding course is an online program aimed at instructors, coaches, and volunteers working with children and vulnerable... More Details
- Courses, RYA Safety BoatThe RYA Safety Boat course is essential for those providing rescue and safety cover for water sports or racing events. Participants learn advanced... More Details
- General Nautical Terminology Safety of Life at Sea (SOLAS)
An international maritime treaty that sets minimum safety standards for ship construction, equipment, and operation. Its primary goal is to...
More Details - General Nautical Terminology Safe Water MarkSee Fairway mark.
- General Nautical Terminology, Weather (Meteorology) Saffir–Simpson Hurricane Wind Scale (SSHWS)
The Saffir-Simpson Scale is a classification system that categorises hurricanes based on their wind speed and potential for damage. It ranges...
More Details - General Nautical Terminology SaildriveA saildrive is a transmission system from the vessel's inboard engine. It closely resembles an outboard engine but is fixed in place and sticks... More Details
- General Nautical Terminology Sail Drive
A sail drive is a transmission system for a boat whose inboard engine has a horizontal output shaft. The sail drive's input shaft is, therefore,...
More Details - General Nautical Terminology, Navigation Sailing Directions
Sailing directions, also known as nautical directions or pilots, are publications that provide detailed information for navigating coastal and...
More Details - General Nautical Terminology Sail LockerPlace where sails are stowed
- General Nautical Terminology Sail TiesLines used to lash a lowered sail to the boom or guardrails to prevent it blowing about
- Weather (Meteorology) Salinity
Salinity is the concentration of dissolved salts in water, typically expressed in parts per thousand (ppt) or as a percentage. In marine...
More Details - General Nautical Terminology SaloonThe main cabin of a vessel
- General Nautical Terminology SAR
The coordinated efforts undertaken to locate and assist individuals in distress or imminent danger, typically at sea, and to bring them to...
More Details - Flag / Pennant, Signals & Communication Code Flag Sierra (S)
The International Maritime Signal Flag Sierra.
Meaning
I am operating astern propulsion.
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If appended with a Numeral Pennant, Speed... - General Nautical Terminology ScopeAmount of cable or 'rode' which is let out when anchoring or laying a cable.
- General Nautical Terminology ScupperDrain hole in the toe-rail
- General Nautical Terminology Sea AnchorA device, such as a conical canvas bag open at both ends, streamed from bow to stern to hold a boat bow or stern onto the wind or sea
- General Nautical Terminology Sea BreezeA daytime wind blowing across a coastline from the sea caused by the rising air from land heated by the sun