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.
Every penny helps!
ColRegs Home>ColRegs>Lights & Shapes>Lights General>Note:  Masthead Light back to top Power-driven vessel underway (Royal Navy Frigate) Note: Masthead Light  Vessels under sail do not exhibit masthead lights Masthead lights were used to distinguish steamships when they were introduced  Masthead lights are often nick-named “steaming” lights even today Large vessel under sail (Endeavour)
Boating Books