Deck 2014: Navigation Problems

1. A The distance is measured in sixty-mile segments based on the length of a degree of latitude at the mid- latitude and mid- longitude position.
2. B The Northern Hemisphere vertex lies south of Reykjavik.
3. C The great circle track is not appreciably shorter than a rhumb line track.
4. D When plotted on a Mercator chart, the great circle track will be convex to the British Isles.

Tip: press A-D to answer