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Subject: Re: [worldcruising] Singlehanding Coastal, Techniques
lewhodgett@XXX.XXX
Date: Sun Nov 25 2001 - 12:09:51 EST
Bryan Genez writes:
<snip>
>BTW, the current issue of SAIL has an article by Nigel Calder about 24
>volt
>systems. He starts out by saying that boats with high-amp motors,
>like
>windlasses, have only two choices: a very large cable running the
>length of
>the boat, or 24 volt.
<snip>
Calder misses the obvious, a hydraulic windlass.
Even 24 VDC is a "band-aid" solution for a windlass, IMHO.
Way back when, large, over the road trucks sometimes used a 12/24 system.
Power contactors were used to connect the 12 VDC, 8D batteries in series
to provide 24VDC to the cranking motor to start the engine, then
reconnected in parallel to provide a 12 VDC operating system that was
recharged by a 12 VDC alternator system.
It was a very "clunky" (That's a hitech engineering term <G>) system at
best.
The marketplace decided keeping the engine running all winter long in
cold climates was a better solution.
Lighthouse has a great windlass and a pretty decent electric motor to
operate it, but mine will be hydraulic with a manual override.
Lew
S/A: Challenge, The Bullet Proof Boat (Under Construction in the
Southland)
There are no problems. just varying degrees of challenging opportunity.
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