Loch Rannoch maybe?

G-BBAJ – Registration
L-1011-100 – Aircraft
1106 – Serial Number

Loch Rannoch near Pitlochry in Perthshire. The first time I visited there as a boy scout in 1980, we were treated to a low level pass by a pair of RAF F-4 Phantoms from Leuchars.

Off topic I know…. :rolleyes: