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This autonomous boat is trying to cross an ocean using only solar power

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Guy Moorhouse
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McMillan is the captain of Seacharger, which is on a mission to become the first unmanned, autonomous boat to cross an ocean using only solar power.

It s a project that McMillan and three of his friends have worked on for two and a half years, after being inspired by a robotic sailboat competition.

Constructing the boat took a lot of trial and error, McMillan says, and at times it seemed an impossible task.

Judging by the intricate design, it s no wonder the craft took over two years to build.

Batteries store any surplus power, so Seacharger can travel for up to three days without needing more sunlight.

A satellite modem, an Arduino-based autopilot system, and some homegrown software help the boat stay on course.

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Guy Moorhouse
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