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post #7 of Old 02-04-2014
miatapaul
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Re: Repowering with an electric engine?

Yea, the big issue is capacity. A gallon of diesel is equal to about a thousand pounds of batteries. So you get a few hours of range at best unless you put in a LOT of batteries. I would love it if it was practical. I sail on a boat with a dozen huge deep cycles and electric motor, it is nice to have instant on power, though surprisingly noisy. They normally sail on and off the dock anyway. (32 foot wooden boat) But it is only sailed very locally so you are not out of range of the batteries. It was done for ecological reasons, not cost, and they are wiling to live with the limitations.

If all you want to do is get on and off a mooring, it can work. But if you are one to use the motor to maintain any schedule when the wind drops then it is likely not for you. Not bad if you are wiling to sit still in a calm waiting for the wind to come back, or in an area with very regular winds.
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