Simon Jollands

Tidal terms and definitions

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

In a previous post, we looked at some of the basic principles involved with understanding tides, including what causes their rise and fall, the resulting tidal streams and the tidal range that varies according to coastal topography. For those who are learning or...

Estimating and plotting your position at sea

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

In a recent post we discussed the importance of being able to estimate your position at sea if the vessel’s GPS fails. In this post we go a little further with a reminder of how we go about estimating and plotting our position using traditional methods, when out...

Estimating your position at sea

by Simon Jollands | Communications, Crewing skills, Navigation, Preparation

Navigators use a combination of techniques to estimate their position at sea. The primary method used today is GPS (Global Positioning System), a network of 24 satellites that became fully operational in the 1990s and was originally restricted for use by the United...

Finding your way at sea: waypoints

by Simon Jollands | Crewing skills, Navigation, Preparation

Any sea voyage needs a certain amount of planning before it is undertaken. It makes sense to think about where you are going, how you will get there and what factors might influence your plan. Planning the route itself is also critical. One of the essential parts of...

Tips and advice for staying safe on a sailboat at sea

by Simon Jollands | Boat Handling, Boat Maintenance, Communications, Crewing skills, Emergencies, First Aid at Sea, Navigation, Preparation

Here we focus on tips and advice for staying safe on a sailboat at sea, the common causes of accidents on sailboats and what to do in an emergency. 9 ways to stay safe at sea Always wear a personal flotation device (PFD) or life jacket. This is the most important...