1100 hrs, yesterday.
Well I know a QRA launched yesterday for a couple of pesky Russian Blackjacks but they left from Leuchars.
It could simply be they were on the way to the exercises yesterday out in the North Sea. Everything was up there. Dutch F16's, USAF F15's and F35's as well as the RAF's.
They've been out again in force today, pretty low level over our heads and storming out to see before gaining altitude.