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hardrhumb-vs-great-circle

A great circle track from A (40°N 020°W) to B (40°N 060°W) will initially track:

North of west (e.g., 285°). In the NH, a great circle going west curves toward the pole, so the initial track will be north of west (more than 270°).

Due west (270°)

South of west (e.g., 255°)

North of west (e.g., 285°)

Due north

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