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Old Jan 10, 2010 | 7:09 pm
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timfountain
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Originally Posted by mbstone
What was I thinking. OK, what do they do when magnetic north changes with respect to true north? Doesn't this vary as much as a couple of degrees per year?
It doesn't very by that much, but it is not that unusual to see a runway get a new identifier from time to time due to magnetic variation.
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