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From: Larry DeMers (no email)
Date: Tue Mar 18 2003 - 10:06:28 EST
Hi Mike,
Nice seeing a familiar name!
I am curious..how did you build your faraday cage? (use the stove idea?)
You are right about lightning. The idea seems to be to try as best as you
can to avoid it, but prepare in case the worst does happen. The chains in the
water idea helps. The sintered bronze plate however, is going to be less
effective at being a lightning ground than it is as an RF ground. Especially
if it is covered with sea critters and other growth. Maybe a large copper
plate bonded to the hull exterior, and wired with a very straight (as
possible) solid conductor attached to the mast would provide a better pathway
for a strike..no sharp bends allowed of course. This would only be attached
to the mast, and as such serves as the lightnings best path to ground.
Combine that with your faraday box, and a reasonable plan to get offf the
boat should you need to, and you have most concerns covered.
Cheers & Beers,
Larry DeMers
s/v DeLaMer
Cape Dory 30 Lake Superior
mpr wrote:
> I've heard mixed reviews for the "brush" to deter strikes.
>
> My Cape Dory is fully bonded to a sintered bronze plate, external to the
> hull.
>
> However, during strike conditions I stream a length of wire/chain from
> my shrouds.
>
> The bottom line is no matter how well you prepare, you get hit, you get
> fried......the best
> to hope for is that it dosen't blow a hole in your hull or dismast you.
>
> In a gesture to reassure myself of post strike survival, I built a
> faraday box to house the emergency vhf and gps.
>
> mike
> LaVida
> CD-33
>
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