SimSail 3.6

SimSail is a free software that calculates the optimal sailing route based on weather forecasts, currents, polars of a yacht and a navigation style.

SimSail is an application that is designed to simulate the effects that winds and currents have on a boat that follows a set route.

The application displays a user-friendly interface and enables you to load GRIB files for your analysis. This means that you can obtain a meteorology map from any source and most importantly of any size and use it to plot and calculate your route.

SimSail is capable of displaying the winds on any of the loaded maps and you can view them with or without interpolation. It also offers you the chance to view their orientation according to time. You are able to either view the wind characteristics at a your current hour, or use the arrow keys on your keyboard to switch between the different layers of the map. This allows you to have a clear view of how the weather progresses and makes it that much easier for you to set your course.

Depending on what you need or prefer, SimSail offers you multiple displays for the created route. You can choose to view dots, lines, dots and lines, boat speed, engine / sailing, wind force, up / down wind and sails.