The Conversion Angle (CA) is defined as the angular difference between a Great Circle and a Rhumb Line track, between two points, measured at either point.
The formula for CA is very straight forward:
Conversion Angle = ½ x Convergency
Now have a look at the relationship between Great Circles (GC) and Conversion Angle.
What is the Convergence in the diagram below?
We are in the Northern Hemisphere, and it is 50o.
Let us consolidate with an example:
An aircraft flies from St Lucia (14oN061oW) to Naples, Italy (41oN014oE).
The initial GC track is 051o.
What is the RL track?
