I got an early Christmas present yesterday when UPS delivered "Sailboat
Electrics Simplified" by Don Casey.  I've only skimmed through it so
far, but it looks OK.  He does a good job on Ohm's law without resort to
algebra.  If I remember anything about math, it's how to solve a 1st
degree equation, but he gives a couple good methods of solving them
without resort to 9th grade algebra.

Anyway, it was taught to like this:

The (I)ndian looks out and see's the (V)ulture over the( R)abbit:

I=V/R  (current = voltage divided by resistance).  Play with it, and
you'll see that the story remains consistent for any solution, such as
the the Vulture see the Indian chasin' the Rabbit: V=I*R

Hey, at 12 volts, you can't even get hurt... unless, you fall off the
mast!


>>> farreach@optonline.net 12/11/04 02:03PM >>>
>    1. Re: Nav lights at top of mast (Keith Diehl)
>    2. RE: Nav lights at top of mast (David Thomason)
>    3. re: Nav lights at top of mast (Steve R.)
>    4. Re: re: Nav lights at top of mast (mike_matthews@comcast.net)
>    5. Re: Nav lights at top of mast (Saltm17@aol.com)
>    6. Re: Nav light requirements (Saltm17@aol.com)
>    7. Nav lights at top of mast (Rick Langer)
>    8. Re: Nav lights at top of mast (Howard Audsley)
>    9. Re: Nav lights at top of mast (Rik Sandberg)

Thanks guys.  As you can probably tell I'm trying to electrify my boat.
Keith, the rules were a good place to start.  I didn't realize they
allow an
all around white light to cover what  usually is done with a stern light
and
masthead light.  On the issue of the tri-color masthead light being to
high,
it seems that being so far above deck it probably sways considerably. 
And
just the thought that a fisherman racing from one spot to another who
thinks
I'm farther away then I am is a nightmare. But, then again, not having
the
light on the sails or otherwise in your eyes is a benefit.  Compromise.

I like the idea of not wiring the mast, but part of the plan is to have
a
stationary VHF, so I guess I have to go up the mast with an antenna
cable
anyway.  If I mounted the light on or in the hull or on the pulpit I
could
use a handheld VHF.  Maybe something like red and green on the hull,
steaming light on the pulpit and stern light on transom  would work.

Thanks again guys, I've changed my mind a few times already, so y'all
must
be having an affect on me.  With this help I think I'll have a good
solution.

Rick Langer




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