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Old 11-28-2016, 04:38 PM   #1
Join Date: Jun 2016
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Default compass

I have a 3" Danford compass fitted to my 2400scr 2008 which is way out, can I either get it calibrated? or do it myself? or do I need to buy a new one and if so will I need to calibrate the new one.
when I point it N it shows SW.
when I go near the screws on the side the screwdriver send sit in to a spin.

Ideas please
thanks Andy

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Old 11-29-2016, 03:43 PM   #2

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If you completely remove the compass and take it away from the boat and any magnetic interference, does it still behave this way?

I use the compass to help hold course at night and in the fog. It's a critical piece of navigation equipment for me. A few degrees is one thing, we're not making 1,000 NM passages trying to hit a small island. However, that is WAY out. I don't know if the calibration settings were designed for that much correction in mind.

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Old 11-30-2016, 12:29 AM   #3
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Location: Cobourg, Ontario, Canada
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I have never heard of a Danford compass. Suggest you may mean a Danforth (brand name) compass.
Of course it will veer off whenever you bring a metal screwdriver or metal whatever near it.
It probably points north but reads the opposite on the lower part of the dial which is quite common for a boat (sailing or power) vessel compass.
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