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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Rule 28 Vessel Constrained by Draught  Animation:  vessel constrained by her draught ColRegs Home>ColRegs>Lights & Shapes>Animations>Constrained by Draught>Constrained by Draught Vessel constrained by her draught based on a large merchant vessel (container ship) back to top Vessel constrained by her draught Vessel constrained by draught