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The First Autonomous Unmanned Boat to Circumnavigate the Globe

A 10-meter sail- and solar-powered robot boat. Open-source. Built by a global community.

We are Patrick Coole and Alex Coole — two hobbyist makers launching a bold project to build the world’s first autonomous unmanned boat to sail around the world. The project is fully open-source, documented in public, and designed using accessible maker tools: Onshape, 3D printing, hobby CNC, off-the-shelf electronics.

The goal: To create an autonomous sailboat, with auxiliary solar-electric propulsion, capable of surviving and navigating a full circumnavigation of the globe — completely unmanned.

We invite anyone to join — contribute ideas, expertise, or support — and help push the boundaries of autonomous maritime exploration.

👉 Learn about the boat
👉 Join the community discussions
👉 Donate to support the project