Navigation

Learn ColRegs: Traffic Separation Schemes

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Learn ColRegs Rule 10: Traffic Separation Schemes. (c) A vessel shall, so far as practicable, avoid crossing traffic lanes but if obliged to do so shall cross on a heading as nearly as practicable at right angles to the general direction of traffic flow. (d) (i) A vessel shall not use an inshore traffic zone when she can safely use the appropriate traffic lane...

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An explanation of the IALA maritime buoyage systems – IALA A and IALA B

By in Navigation, Preparation | 1 comment

What are the differences between the two IALA buoyage systems, IALA Region A and IALA Region B, and where are they used?   As recently as the 1970s there were more than 30 buoyage systems in use around the world. This caused confusion and accidents and it was after two fatal incidents in the Dover Straits in 1971 that the IALA (International Association of Marine...

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Passage Planning Advice & Safety for skippers

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Passage planning helps you to: • Decide where to go • Calculate how long it will take to get there • Avoid bad weather • Take advantage of favourable tides • Be aware of possible hazards, eg shipping lanes, tidal overfalls • Decide a watch system • Decide if the crew is experienced enough for the trip • Be prepared to react in case of emergency   A well prepared...

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Know your Navlights & Shapes – essential for all skippers

By in Communications, Navigation, Preparation | 0 comments

Know your Navlights & Shapes International Regulations for Preventing Collisions at Sea (ColRegs) Anyone who is responsible for a vessel at sea, from the smallest dinghy to an ocean going supertanker, day or night, must be able to recognise other vessels and quickly interpret what they see around them. This is not always easy, especially in crowded coastal...

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How to predict wind direction and strength by reading a weather chart

By in Boat Handling, Navigation, Practical, Preparation | 0 comments

Weather charts, also known as surface pressure or synoptic charts, contain a lot of information that helps weather forecasters make predictions about the weather and sea conditions. Before going to sea it is always a good idea to study weather charts and work out how the weather is likely to evolve in the area you plan to sail in. This sequence of four synoptic...

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