How To Solve Great Circle Sailing Problems?

This video provides a comprehensive solution to the Great Circle Course Problem by calculating the great circle distance, initial course, and final course. The problem is based on the Great Circle Sailing method, which involves solving courses, distances, and points along a great circle between two points. The video proposes a vector algebra approach to deal with great circle sailing problems, using the fixed technique of calculating a complete great circle and using it for practical ocean passage. The video also covers the initial and final course, vertex, rhumb line segments, etmal, meridian intersection, composite sailing, Loxodromic and orthodromic distance, and spherical triangle formulae for solving the great circle track.

The video also discusses the difference of longitude (Dlo) and the importance of arranging the sides of the triangle so that the given angle corresponds to the given angle. The starting point and destination, along with the North Pole, form a spherical triangle. The formula for calculating the distance and initial course is -tan Latitude = sin (Longitude – X) * tan K, where X is the Longitude when the GC track crosses the equator from south to north and K is the spherical angle.