Posted 3/2/2015 16:53 (#4425783 - in reply to #4424976) Subject: RE: Aviation experts
NW Saskatchewan
I've seen this here in Western Canada as well, usually on a perfectly clear summer day with little measurable winds. Often wondered about it too, just assumed it was a course correction but always looks weird. Plus the aircraft always winds up headed in a different direction than it first appeared so definitely not wind currents aloft moving the contrail.
Aviation experts
