Originally Posted by
Uplinker
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Using magnetic must be a PITA in places such as Canada, but isn't it because we still have basic C152s etc. using the same runways as IRS/GPS aircraft? And if all the ADIRUs + GPS failed, (yes, I know....), even an A320 has a normal magnetic field powered compass.
Far north is true. Remember the 737 crash at CYRB in August, 2011?
