Sail Skills - ColRegs Free Guide to ColRegs (the International Regulations for Preventing Collisions at Sea, the IRPCS or Collision Regs). Guidance covers all aspects with animations, pictures and diagrams. Aimed at small vessel users but suitable for professional mariners. Especially recommended for RYA examination candidates.
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ColRegs Home>ColRegs>Signals>Fog Signals>Anchored & Aground y A vessel aground sounds the: bell and gong as a vessel at anchor, but with 3 distinct strokes on the bell immediately before and after the rapid ringing A vessel under 100m at anchor (click on button to listen) A vessel 100m or more at anchor A vessel aground 100m or more A vessel aground under 100m (click on button to listen) Vessels at anchor engaged in fishing (click on button to listen) Vessels at anchor restricted in their ability to manoeuvre (click on button to listen) back to top Power-driven vessel underway in restricted visibility Sailing vessel underway in restricted visibility A vessel at anchor in restricted visibility A vessel under 12m underway in restricted visibility Power-driven underway Other vessels underway Anchored & Aground Vessels under 12m Vessel engaged in pilotage duties underway in restricted visibility Vessels engaged in pilotage duties
Boating Books
NUC Restricted Constrained Sail Tow or Push Very Large Vessel MP3.mp3 NUC Restricted Constrained Sail Tow or Push Larger Vessel MP3.mp3 NUC Restricted Constrained Sail Tow or Push Small Vessel MP3.mp3 Anchor bell MP3.mp3 Anchor (vessel 100m or more) MP3.mp3 Anchor indicating possibility of collision MP3.mp3 Anchor bell MP3.mp3 Aground (vessel under 100m).mp3 Aground (vessel 100m or more) MP3.mp3 Aground (vessel under 100m).mp3

Many vessels have automated systems to ring bells and sound gongs in the prescribed ways