Standard GPS chartplotters and mapping apps do not account for sailboat tacking distances. But if they do not know the distance you will travel, how can they calculate your correct ETA? SailTimer gives you a quick and easy display of your optimal tacks and TTD® (Tacking Time to Destination).

If you have the wireless SailTimer Wind Instrument™ (www.SailTimer.co) connected to your phone/tablet, your optimal tacks will update automatically in this app as the wind changes. Or you can manually enter wind direction and wind speed manually to see your optimal tacks for the route you are planning.