Glossary
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TermDefinition
- General Nautical Terminology SaloonThe main cabin of a vessel
- General Nautical Terminology, Safety 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 - General Nautical Terminology, Safety SART
An emergency device that responds to radar signals by transmitting a series of pulses to help rescuers locate a vessel or liferaft in...
More Details - General Nautical Terminology SBF
A German boating licence required for operating recreational motorboats and sailing vessels above certain power or length limits in German...
More Details - General Nautical Terminology SBF Binnen
A German boating licence required for operating recreational motorboats and sailing vessels on inland waterways.
The Sportbootführerschein...
More Details - General Nautical Terminology SBF See
A German boating licence required for operating recreational motorboats and sailing vessels with an engine of more than 15 horsepower in coastal...
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, Nautical Saying Scupper
An opening in the side of a ship or boat, designed to allow water on deck to drain overboard.
In maritime terminology, a scupper is an...
More Details - General Nautical Terminology Sea Anchor
A device, typically a canvas or synthetic fabric drogue, deployed in the water to stabilise a vessel by creating drag and reducing drift in rough...
More Details - General Nautical Terminology, Weather (Meteorology) Sea Breeze
A cooling wind that blows from the sea towards the land, typically occurring during the daytime due to temperature differences between the land...
More Details - General Nautical Terminology SeacockA stop-cock next to the hull to prevent accidental entry of water
- General Nautical Terminology Sealegs
The ability of a person to maintain balance and move steadily on a vessel in motion, particularly in rough seas.
Sealegs is a term deeply...
More Details - General Nautical Terminology, Safety Search and Rescue (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 - General Nautical Terminology, Safety Search and Rescue Transponder (SART)
An emergency device that responds to radar signals by transmitting a series of pulses to help rescuers locate a vessel or liferaft in...
More Details - General Nautical Terminology, Navigation Secondary Port
A location where tidal information is derived by applying corrections to data from a nearby Standard Port.
A secondary port is a coastal...
More Details - Flag / Pennant, Signals & Communication Second Substitute (ICS Flag)

Substitute or repeater flags allow messages with duplicate characters to be signalled without requiring multiple sets of flags.
- General Nautical Terminology Sector Light
Occasionally a light may not be visible through 360 degrees, or it may shine different colours depending on where it is viewed from. In this...
More Details - General Nautical Terminology, Safety, Signals & Communication Sécurité
A maritime safety message broadcast over radio to convey important but non-urgent navigational or weather-related information.
Sécurité is a...
More Details - Flag Semaphore, Morse Code, Signals & Communication Semaphore
A signalling system used to convey information at a distance by means of visual signals, typically using flags or lights.
Semaphore is a...
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