As well as doing a VFR navigation exercise today, I left a little pocket GPS in my pocket logging the track.
This was then downloaded to a PC, so I can work out how badly I went off track.
The planned course was Elstree - Stokenchurch - Wing - Elstree via Bovingdon
As you can see, I was a little off course (too far south) to start off with (and almost encroached on Wycombe's ATZ), a bit too far west before Aylesbury, spot on over Wing, where I turned left to head to Tring, then after the Chilterns, to Bovingdon VOR, then down over Watford for a 4 mile final approach straight in to Elstree.
Still, it was a visual navigation, so I don't expect my navigation to be a dead straight line, since I was navigating by reference points on the ground, and not primarily instruments.
The chart isn't exactly aligned, I'm still playing with that bit of software.
At no point did I use the GPS (in my pocket, or the one in the plane) for navigation.

[ Flying ]