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(If you want to avoid the trappings of youtube's autosuggestion hole, click on Part 2 here • Shamrock Electric Sail... once this clip is done!)
This summer Justin completed what had been a long sought dream replace the inboard diesel engine of his 25 foot sailboat with a pure electric drive. After crunching some numbers and looking at the mechanical clearances, he realized that he could pull this off using a direct drive electric bicycle hub motor attached to the prop shaft with no transmission at all.
This video shows an overview of the motor installation and captures the very first sea trial as we powered the boat over to the dry docks for a needed cleaning and overhaul.