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From: cirejay (no email)
Date: Mon Nov 01 2004 - 19:24:13 EST
--- In , "Jon Brown" <jb510_yg at h dot dot dot >
wrote:
> I don't understand WHY anyone would drag windmill in the water?
If you're sailing, you've got enough wind to spin it right? If
you're motoring then you've got an alternator spinning right? What
am I missing here?
>
> I like the idea of a propshaft mounted alternator, especially for
larger boats. It seems simple and logical.
>
> However, it seems that a wind generator is a lot more versatile
and just as, if not more, efficient than the propshaft mounted
alternator arrangement. In addition to being more versatile since
it works on the hook (assuming there is wind) as well as at sea. I
understand needing solar and wind, or solar and propshaft
alternator, but WHY would anyone need both a Wind Gen and Water Gen?
>
> I'm very confused...
Jon,
The nice thing about solar is that it can be completely passive if
one decides to just mount the panels and not worry about aiming
them. Water is much more efficent than wind (water is just a bit
more dense) which is why one can get 5 Amps out of 5 knots. But, of
course, is usless at anchor. Unless one anchors in a tidal race:-)
I've never actually had wind on any of my boats. I love the concept
but when I've talked to long term cruiser I usually find that they
are not crazy about theirs or they say that they love it and then
proceed which any number of horror stories.
Underway, wind seems to work best close hauled and is not much use
at all when running. One would think that wind comes into it's own
at anchor but then do you really want to seek out a windy
anchorage? And, even though they have gotten better, don't forget
the noise.
Just my thoughts, eric
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