Log files from some of my flights, rendered as KML.
Click the tumbnails to open. Drag with the middle mouse button to change perspective to see the aircraft's altitude.
A flight at Gliding Mecca; thermal, ridge and wave lift, up and over Mount Cook and back again.
Discus A61. Silver C attempt (distance + height + time) - hence the faffing around west of Cambridge ;-)
That's all for now...