I love freighters

Boeing 747-8F operating Cargolux service CLX831 to Los Angeles.

CLX831_B748_IMG7095-2013-04-07.JPEG

Even on the latest variant of the five-decades old 747 the starboard contrails 'mix' and combine much sooner than those on the port side. I assume there is some odd aerodynamic affect from the fuselage that causes this.