there is a relatively new youtube channel called Fantasia Sailing (from Australia) that shows him running and comparing his cat with one diesel and one electric motor. He does speed and power tests each by itself. I know your cat is probably much heavier than his but still the best comparison around in my opinion.
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Indigo Lady is a sailing cat converted to an all electric power cat that should be somewhere around the Caribbean. It doesn't seem like their cat is very efficient to me. they have a huge solar array and huge battery packs and seems like they only do around 60-70 miles a day. I think they need a prop change
