Re: [Paddlewise] Compasses

Don't confuse declination and variation (difference with magnetic north on
land and sea, respectively) with deviation which is error attributable to
local interference from ferrous or nickel or electromagnetic objects in the
proximity of the mounted compass such as a radio or speargun etc. I always
navigate using magnetic north as indicated on the compass-rose on a chart.
Sid Taylor
-----Original Message-----
From: Steve Scherrer <Flatpick_at_teleport.com>
To: paddlewise_at_paddlewise.net <paddlewise_at_paddlewise.net>; Dan McCarty
<dmccarty_at_us.ibm.com>
Date: Tuesday, February 13, 2001 8:35 AM
Subject: Re: [Paddlewise] Compasses


>I would skip the part about looking for a compass with adjustable
>declination/ variation.  We teach boaters to NEVER use this feature as it
>will be a different bearing than the Marine compass on your deck, with no
>adjustment options.  Don't get confused, don't adjust variation on the
>compass.
>
>just 2 centavos.
>
>Steve Scherrer
>www.aldercreek.com
>

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