Master vs AMC Buoyage System (IALA)

Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works. Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly. Complex regulations are broken down into learnable chunks — bite-sized sections supported by mnemonics, memory aids and interactive visuals designed around how the brain actually retains information. Every incorrect answer is shown graphically alongside the correct one — immediately clear, no confusion. And with a single tap, the relevant COLREGS rule is accessible from any question at any time. Master-Nav covers COLREGS Parts A to D — General, Steering & Sailing, Lights & Shapes and Sound & Light Signals — plus Annex IV Distress Signals. Over 1000 questions in multiple formats, with a dedicated Practice Section that tracks right, wrong and unanswered so you always know where to focus. COLREGS — the easy way.

The AMC Buoyage System (IALA) app helps people at sea to understand the meaning of each buoyage marker. The app provides a full 3D visual of the type of buoy, colour, shape and lighting sequence for night-time. Both Region A and B are included in the app. Whether you are a person just starting off in the industry or an experienced seafarer looking to refresh your knowledge, the app provides all the required buoyage information you need to steer safely at sea.