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>Lights & Shapes>Sail and Oars>Vessel Under Oars back to top A sailing vessel under sail and power - displaying a cone, point downwards Vessels under sail and power Vessels under oars A small boat under oars Sailing vessels under 7m A sailing vessel (a dinghy) under 7m Sailing vessels under 20m A sailing vessel (a sloop) under 20m Sailing vessels optional lights A large vessel under sail showing optional lights on her mast Sailing vessels general A large vessel under sail Note that the rules do not specify a particular fog signal for vessels under oars  Most will be under 12m and will use the signal for vessels under 12m
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