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#4
October 8th 03, 02:05 AM
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Dale DePriest wrote:
You need a table of magnetic variations and interprolate from the table based on your location as there is no mathmatical model that will provide this information reliably. Given a table of magnetic variations at known locations, there are statistical methods to derive a useful mathematical model. The web site cited in a previous article provides such a model as a polynomial. http://williams.best.vwh.net/avform.htm#Var 
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