The overall Tacking Time to Destination (TTD ®) is always available centered on the bottom bar. There are also Next and Previous buttons, for when you want to see the optimal tacks to the next waypoint. The green lines show the optimal tacks to the waypoint. The blue line is the route from waypoint to waypoint. The screenshot above shows the patented SailTimer™ tacking results being displayed on the new Navionics vector charts. For both racers and cruisers, the SailTimer app can learn your boat's polar plots, and use these with tacking distances to display your optimal tacks. But if they don't know how far you are going to travel, how can they calculate your ETA or tacking results correctly? The SailTimer tacking results solve this problem. It is obviously easy to measure distance in the GPS era, but traditional measures like ETA and VMG do not do this (as shown here). Out of all of the GPS chartplotters and apps available, only SailTimer uses actual tacking distances to determine your optimal tacking route. Zoom in as much as you want, with no pixellation. The Easy View button gives the option to make numbers and text extra-large. Unlike raster chart images, these vector charts have no seams, quick download, small file sizes, and fast display. We are pleased to announce that worldwide marine charts from Navionics are now available in the free SailTimer™ navigation app on iOS.
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