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 26 Fishing Trawling  Animation:  not making way ColRegs Home>ColRegs>Lights & Shapes>Animations>Fishing>Trawling Not Making Way Vessel engaged in trawling based on vessel NOT making way (may or may not be underway) back to top of vessels trawling Fish in proximity - purse seining Vessels in proximity engaged in purse seining Fish in proximity - trawling Vessels in proximity engaged in trawling Fishing other than trawling A vessel engaged in fishing "other than trawling" Trawling A vessel engaged in trawling