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TermDefinition
- Sacrificial AnodeA zinc plate fastened to the hull to prevent corrosion of metal fittings on the hull Read more
- Safe Water MarkSee Fairway mark. Read more
- Safety of Life at Sea An international maritime treaty laid down by the IMO which sets minimum safety standards in the construction, equipment and operation(...) Read more
- SOLAS An international maritime treaty laid down by the IMO which sets minimum safety standards in the construction, equipment and operation(...) Read more
- Weather (Meteorology) SSHWS The Saffir-Simpson Scale is a classification system that categorises hurricanes based on their wind speed and potential for damage. It ranges(...) Read more
- Weather (Meteorology) Saffir–Simpson Hurricane Wind Scale The Saffir-Simpson Scale is a classification system that categorises hurricanes based on their wind speed and potential for damage. It ranges(...) Read more
- Sail LockerPlace where sails are stowed Read more
- Sail TiesLines used to lash a lowered sail to the boom or guardrails to prevent it blowing about Read more
- 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(...) Read more
- Sailing directions Sailing Directions (Pilots) provide essential information to support port entry and coastal navigation for all classes of ships at sea. Sailing(...) Read more
- 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(...) Read more
- SaloonThe main cabin of a vessel Read more
- SOSInternational distress signal made by light, sound or radio Read more
- Save our SolesInternational distress signal made by light, sound or radio Read more
- ScopeAmount of cable or 'rode' which is let out when anchoring or laying a cable. Read more
- ScupperDrain hole in the toe-rail Read more
- 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 Read more
- Sea BreezeA daytime wind blowing across a coastline from the sea caused by the rising air from land heated by the sun Read more
- SeacockA stop-cock next to the hull to prevent accidental entry of water Read more
- SealegsThe ability to keep one’s feet in spite of the motion of the boat Read more