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>Restricted Ability to Manoeuvre>General Requirements Vessel restricted in her ability to manoeuvre - making way back to top or at anchor: shape light or lights for a vessel at anchor These signals: are not distress signals and need not be exhibited by vessels less than 12m A vessel recovering a navigation mark - restricted in her ability to manoeuvre and in addition to the above, when: making way: masthead light or lights sidelights sternlight Vessel restricted in her ability to manoeuvre - making way Vessel restricted in her ability to manoeuvre - at anchor A vessel recovering a navigation mark - restricted in her ability to manoeuvre A small vessel engaged in diving operations A vessel engaged in underwater operations where an obstruction exists A vessel engaged in mine clearance operations General requirements Operations with obstruction Diving operations smaller vessels Mine clearance
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