Nick, I'm aghast!
"It's explained somewhere that the PR_18_27_47.kml file is incorrect. Use Ping_Ring_18_29.kml instead."
This throws everything I've been working on for the last week off by 70 nm.
I thought one of the base assumptions was that the 18:29 ring and the 19:41 ring were 140nm apart, and the rings I've been using matched that pattern.
Also, the ring KML's I used were the most recent on Steel's site.
Where did the information about the incorrect 18:27 kml file come from?
I can't find it and I (we all) have to get this straight.
@OleOle
Read this please. It makes the turn south possible at 18:39.