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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A series of vessels overtaking a small power-driven vessel back to top ColRegs Home>ColRegs>Steer & Sail Rules>Vessels in Sight of One Another>Overtaking The small power-driven vessel in the centre of this animation is being overtaken (and has an interesting time).  The white area is that covered by her sternlight: A vessel is overtaking another when coming up from a direction more than 22.5° abaft the beam.  This means by night she would be able to see: only the sternlight but neither sidelight  of the vessel being overtaken Reminder  It’s worth restating that this rule applies only to vessels in sight of one another  Entirely different rules apply to vessels which are:  not in sight of one another and navigating in or near an area of restricted visibility A sailing vessel overtaking a small power boat Diagram:  symbol stand-on vessel Stand-on vessel Diagram:  symbol give-way vessel Give way vessel Overtaking Vessels:  retricted in ability to manoeuvre, sailing and engaged in fishing Two vessels under sail approaching Responsibilities between vessels Sailing Vessels Two power-driven vessels approaching Power-driven Vessels A sailing vessel overtaking a small power boat A sailing vessel overtaking a small power boat
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