On which voyage would a great circle track be significantly shorter than a rhumb line track? (Use gnomonic tracking chart WOXZC 5274)

Correct Answer: Option C — Savannah, GA, to Lisbon, Portugal

Great circle tracks yield significant distance savings over rhumb lines on long ocean voyages with substantial differences in longitude and high latitudes. Savannah to Lisbon spans a wide Atlantic arc where the curvature of the Earth makes the great circle noticeably shorter than a rhumb line.