I saw a rather large "Black Diamond" being chased by two F4 Phantoms, just to the north of Upper Heyford, many moons ago.
Problem was that as far as I was aware, there were currently no F4 squadrons based in Europe except for Turkey at the time.
All the RAF squadrons were Tornado's and the USAF aircraft had redeployed from the UK and Germany back to the States.
All very mysterious, could have been the B2 or F117 but unlikely, as it was the wrong shape and I did get a very good view as it passed in front of me.
