Free Guide to ColRegs; small and large vessel stability, tides. Aimed at small vessel users but suitable for professional mariners. The ColRegs (the International Regulations for Preventing Collisions at Sea, the IRPCS or Collision Regs) guidance covers all aspects with animations. Stability covers the familiar concepts but also movement of liquid in tanks – free surface effect. Tides guidance covers the causes the of tides and how to predict tidal heights as well as how to use such guidance. Especially recommended for RYA examination candidates. Link to Stability Project Stability © A Joy 2009-18
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