Weather routing is the calculation of the fastest route between 2 waypoints or a succession of waypoints called route taking into account weather forecasts, current forecasts, boat characteristics and certain constraints imposed by the user (maximum wind, sail and engine routing, prohibited areas…)
The application uses the isochrones method to calculate routing. An isochron is a curve representing the points that a sailboat can reach in a given time. You will see these curves drawn during the routing calculation.
The main steps to do a routing are:
- download a grib forecast file including wind
- create a route
- choose the departure time
- choose the boat polar
- if necessary, set the optional parameters
With a little practice, you can calculate your routings less than a minute!
