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alternator ; 12 volt

  1. S

    Prop shaft alternator conundrums

    Hi all, I'm hoping that you can help with some design ideas. I have a sailing boat that I have fitted a Lucas Marine 45 amp alternator to the prop shaft. Here are some of the specs. The prop shaft spins @ about 200rpm when sailing. I have a pulley ratio of 9:1 so get approx 1800rpm at...

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