Determine the great circle distance and initial course from LAT 34°51.0'N, LONG 115°01.2'E to LAT 10°16.0'S, LONG 51°42.6'E.

Correct Answer: Option D — 4493 miles, 245.6°T

Great circle distance and initial course are determined using the haversine formula or spherical trigonometry. Given the coordinates, the distance is calculated as 4493 nautical miles. The initial course angle is derived from the Napier's Rules for right spherical triangles, resulting in an initial course of 245.6°T.