Thread: Magnetic Variance
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Old 03-05-2008, 12:59 PM
oggie doggie
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oggie doggie is offline 		 
Join Date: Jul 2007
Location: Launceston, Tasmania
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I think this is what you are looking for. I got it from Geoff Smiths article on how to drift align.

http://www.ga.gov.au/oracle/geomag/agrfform.jsp
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