28 Sep '13, 12am

Robotic Boat Hits 1000-Mile Mark in Transatlantic Crossing - IEEE Spectrum via @IEEESpectrum

Although the construction of Scout’s hull is somewhat high tech—carbon fiber sandwiching Divinycell foam—the rest of the boat is comparatively simple. Solar panels mounted on the top of the hull charge a lithium-iron-phosphate battery, which in turn powers an ordinary trolling motor attached to the bottom of the hull. (In good DIY style, the motor was purchased at Dick’s Sporting Goods.) Under ideal conditions, the battery will gain sufficient charge during the day to power the boat’s motor throughout the following night. Under less than ideal conditions, the motor shuts down when battery voltage gets too low, and the boat just drifts until it can get charged up again.

Full article: http://spectrum.ieee.org/automaton/robotics/diy/robotic-b...

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