Sailing Gps

This is a GPS device made just for sailing and you can pick one up online for $400.
How this is different than GPS chartplotters is that it is very difficult to correctly estimate time of arrival on those. What this GPS does is that it accounts for the tacking that sailboats and also give you the optimal tacking angles and your Tacking Time to Destination (TTD). It does this by displaying how long it will take to reach each tack, and the optimal tacks to arrive earliest.

Another handy feature of this Sailing GPS is the ability to talk to Google Maps via bluetooth which beats entering lat long manually. When you’re done you can hook up to a computer and see your vessel’s speed stats, and wind speeds.

The Sailing GPS is based on a new patent called “Navigational Planning and Display Method for the Sailor’s Dilemma When Heading Upwind” which was filed 6 years ago but just recently granted.