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You must see this to prepare

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You must see this to prepare
Scythe13 Offline
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#11
8 November 2012, 11:16 (This post was last modified: 8 November 2012, 11:23 by Scythe13.)
Dissent is the highest form of Patriotism - Thomas Jefferson
Those who sacrifice freedom for security deserve neither - Benjamin Franklin
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NorthernRaider Away
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#12
8 November 2012, 11:33
Mag north is always moving, always has look at the top of every Ordnance Survey Land Ranger map ever printed, along the edge you will see information on the issue of that map, what the magnetic variation is tween mag and grid north at that time, then use the formula to correct your route bearing. Grid to mag add, mag to grid get rid. EG my local map reports 4 degrees variation at time of print.

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TheGuru Offline
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#13
8 November 2012, 17:05
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Scythe13 Offline
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#14
8 November 2012, 17:51
That's a good video. Nice one TG.
Dissent is the highest form of Patriotism - Thomas Jefferson
Those who sacrifice freedom for security deserve neither - Benjamin Franklin
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