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>Steer & Sail Rules>Vessels in Sight of One Another>Sailing Vessels The wind is considered to be on the opposite side to which is carried the:  mainsail, or largest fore-and-aft sail in a square-rigged vessel  Usually this is quite obvious.  These vessels have the wind on the starboard side: Sailing vessels with wind on different sides 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 back to top Sometimes it can be less obvious: Vessels under sail - difficult to tell on which side they have the wind Vessels under sail - difficult to tell on which side they have the wind Sailing vessels with wind on  the same side 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
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