3: 60ºS 080ºW                                                             2: 60ºS 070ºW

 

 

The great circle track at WP2 is less than 270ºT and at WP3 it is more than 270ºT.  

It has increased by Conversion Angle = ChLong x sin mean lat

                                                                                    = 10ºx sin60º)

                                                                        = 10º x 8.66 = 8.66º