Thanks all.
For fear of dominating the thread with aeroplanes, I dug out some frames from my last visit to an air show at Duxford. It must be about 20 years ago, it was a Spitfire anniversary, and it featured the largest number of Spitfires to have been in the air together since the 1940s, 16 in all, which must be about a squadron's worth. Since then, of course, the numbers of new restorations has ensured that such displays are quite common.
No aesthetic or technical prowess here, just interest for those who are interested. They made just one pass over the airfield in a formation before splitting into 4s and passing back over at low level and some speed. This must have been an insurance issue, in contrast to this weekend's display where the sky was full of brilliantly choreographed Spitfires for a good 20 minutes or so.
This last one shows P51D 'Big Beautiful Doll' coming in, the crowd and the IWM Land Warfare Hall in the background. This plane was written of 3 or 4 years ago in a mid-air collision during one of the displays here. Her control lines were cut by the wingtip of another plane, and she went nose first into a field of wheat about 100 yards from where I took this photograph. The pilot made a remarkable low-level parachute jump and was almost uninjured, I think the horizontal stabiliser caught his wrist on the way past, the other plane landed safely.
All Nikon F3, HP5 (very grainy) processed in D76 or ID11, scanned with a Nikon Coolscan IVED and tidied up in Photoshop.