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Old 18th Aug 2010, 07:17
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ishe
 
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Question INS at High Latitude
I may have missed the point during the theory side of the INS, please could anyone answer this or point me in the right direction. Above a certain latitude we have to switch the heading mode from magnetic to true. When this switching has taken place does the INS now take into account the Variation. Or- can the INS even be used above these latitudes.

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