Range Optimizing using an Electric Boat Motor

Optimizing an electric boat for range is similar to optimizing range for a boat with an internal combustion engine. In short, the more power you draw, the less range you will get.

The below graph shows a theoretical range graph one might expect to see powering with an electric sailboat in smooth conditions.

bluefin-electric-boat-range-graph-example

As you can see, the amp draw to speed is not linear, however, there is a “sweet spot” in which the range is optimized for approximately 22 nautical miles while maintaining an approximate speed of 4.2 knots and at the same time only drawing 23% of the available amp hours. (based on a 200Ah system)

By sacrificing a few knots, there is a 145% increase in range.**

 

**This graph is for illustrative purposes only and represents a theoretical example. Water conditions and individual boat dynamics will compute different findings.