PPRuNe Forums - View Single Post - Flight Planning Across Magnetic Variations

9th Jun 2011, 09:37

#27 (permalink)

Masif Eego

Join Date: Apr 2008

Location: here, there and about....

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[QUOTE]But what's the (green) line called that joins up the same value grivations? /QUOTE]

I'll have a crack at it ...

ISOGRIVS

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