Chuck,
A great story about your Banks Island trip. For a moment or two, I thought you were supplying "my" seismic crew, but then I remembered that the seismic data I worked on was from Prince Patrick Island.
I never got that far north, but I once jump-seated in a 748 from Calgary to Inuvik (with intermediate stops at Edmonton, High Level and Norman Wells - it was a long trip!). I was very impressed that when we got to Inuvik, the Omega display was only 1 nm out. Not bad for a trip of nearly 1200 nm.