Originally Posted by
joepilot
Note: You usually lose ADS and CPDLC coverage around 82 degrees north. HF is necessary then, but reception in that area stinks.
Joe
Yes that's a satellite coverage issue.
Although UPS doesn't fly that far north or south yet, I feel an ANC-CGN leg in the MD-11s future. Soon we'll be training polar grid nav, but our ops specs would need a tweek first.