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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back to top ColRegs Home>ColRegs>Steer & Sail Rules>All Vessels>Avoiding Collision If necessary to:  avoid collision or  allow more time to assess the situation, a vessel shall: slacken her speed or  take all way off by: stopping or  reversing her means of propulsion Note that this means a sailing vessel may need to heave-to (it’s a manoeuvre well worth practising in its own right).  It’s also worth noting that collision reports are very critical of reluctance to use engines Reminder  It’s worth restating that this rule applies to:  all vessels in every situation  where the ColRegs apply ... which is:  on the high seas and all waters connected therewith navigable by sea-going vessels  Sea-going vessels can be quite small! Compass bearing of a vessel being measured against a distant object A fishing vessel - a factor to be considered in safe speed Safe speed Sailing vessel showing area obscured by sails Look-out Determining risk of collision Diagram:  A vessel on collision course Diagram:  Vessels in and near a narrow channel Avoiding collision Narrow channels or fairways Diagram:  Traffic Separation Schemes in the English Channel Traffic Separation Schemes
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