11. It was released several times, being reworked for their first full album, " The Rhumb Line ", in 2008. 12. The shortest course is the great-circle course, which is not a rhumb line because its bearing is not constant. 13. "Rhumb Line II " is a 50-page note pad travel version played with a blue and a yellow pen. 14. At 20 degrees North the great circle distance is while the rhumb line distance is, about 1?percent further. 15. :: A rhumb line is a line of constant bearing-a line that makes a constant angle with each meridian. 16. Most take the rhumb line , the most direct route from Chicago to the island up the middle of the lake. 17. :: : The question didn't ask for a rhumb line , it asked for the bearing of one city from another. 18. But at 60 degrees North the great circle distance is while the rhumb line is, a difference of 8?percent. 19. A more extreme case is the air route between New York and Hong Kong, for which the rhumb line path is. 20. Many have screens that display a schematic chart of the user's position and the rhumb line to the various way points.