My apologies for not getting back to this thread sooner but I am working away from home and have had no internet connection this week!!!
The shuttle was shot on its visit to Fairford - wonderful way to spend a lunchtime.
Iron City - they are indeed A-7s from the Portuguese Air Force. The 16 ship flyby was part of the 1987 Tiger Meet show at Montijo, just outside Lisbon, the aircraft were operating from their home base at Monte Real.