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Post by phil70 on Feb 27, 2018 21:52:51 GMT
Just seen a snippet on the local news. A 35m all wood single masted yacht being built and is going to have all electric drive the battery bank is recharged by
a windmilling prop and 5 hours sailing will produce enough to recharge the batteries fully.
They seemed to think that electric drive on a boat is a first for them (deluded)
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Post by Deleted on Feb 28, 2018 6:43:24 GMT
I suppose if its a large diameter propeller and a small battery bank and the electric motor(s) is solely for docking purposes (like an auxiliary outboard would be for smaller boats) then its plausible.
I use remote control aircraft props on my electric kayak. Settled on a 8x6 nylon two blade prop it is very efficient indeed. I don't do any regen with it but given correct design I think what is being described is possible but not for extensive use of the motor(s).
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Post by NigelMoore on Feb 28, 2018 12:06:57 GMT
Ampair made a towable generator for yachts [sort of a roundabout way of generating from wind]. In fact they made one model which could be used either in the rigging or towed in the water, depending on whether you were moored or under sail.
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Post by Deleted on Feb 28, 2018 12:30:19 GMT
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Post by NigelMoore on Feb 28, 2018 13:01:00 GMT
Seems good value, given the high retail cost advertised, though I cannot see what the output is.
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