He uses DIY solar powered boats and he makes self-made 3d printed propellers for them.
Modular props with replaceable modules:
Here is the real test:
PDF for boat propeller design:
http://web.mit.edu/13.012/www/handouts/propellers_reading.pdf
MAKEzine article about his life and many cool island projects:
http://makezine.com/2016/03/11/building-makers-island-paradise/
Find Jaimie:
http://www.thepoosh.org/buildproject/jaimie-mantzel/island-community-panama-fortress-headquarters
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Prop in the water |