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- Q135 - Navigation Problems: Oceans
430. Determine the great circle distance and initial course from LAT 37° 47.5' N, LONG 122° 27.8' W to LAT 33° 51.7' S, LONG 151° 12.7' E.
The great circle distance and initial course from San Francisco to Sydney are 6445.2 nautical miles and 240.3 True, respectively, as determined by applying the spherical law of cosines and the initial course formula, accounting for latitude and longitude differences.
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