"J Haggerty" wrote in message
news:8wn3e.38$KI6.5@okepread07...

Seriously, though, check out the following approach plate and magnetic
variation notes at Barrow, AK. They already have magnetic problems up
there.
http://www.naco.faa.gov/d-tpp/0503/05463I6.PDF


Nothing new. All of Canadian airspace marked on this map

http://webhosts.nunanet.com/~pnagle/ndairspacelg.jpg

as "Northern Domestic Airspace" uses TRUE north headings only and no
magnetic nav due to unreliability.

When operating in this airspace the rules call for the aircraft to be
equipped with
"a means of establishing direction that is not dependent on a magnetic
source"