Almabraxas/3B

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The 3rd experiment in the Almabraxas series is expected to be a solar-powered autonomous boat (hence the trailing B). The computer is based on the one from the Almabraxas 2 high altitude balloon. Of course, you can follow the development on the blog.

Contents

What speed to expect ?

Here's a page with some hard numbers. In short: it's a 1-2 persons dinghy weighting ~35 kg, 8ft long. Powered with some motor it runs at 4.3 km/h drawing 100W, and 6km/h drawing 250W, so with a well design enough boat, we can expect 2,5-3 kts with 200 W solar panels (assuming an average power of 50% the panel's peak power).

Similar projects

Hobbyist

Not so hobbyist

Notes

  • MPPT hill-climbing algorithm [1]

(potential) providers

Solar panels

Motors

Floating

Waterproof servo

Tubes and connections

Stainless Steel

Aluminium

Miscellaneous

References

  1. http://www.cder.dz/download/Art13-3_12.pdf
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