In 1983? the RAAF celebrated their 75th Anniversary with an airshow at RAAF Point Cook, Victoria.
The controlled airspace was a 3nm radius of Laverton - some 1.5nms northwest. Two Lightnings came from Adelaide with a Victor tanker. The Victor stayed 100nms to the West and the Lightnings joined for their display. On the run in, one lost a donk and decided to continue with the sortie.
They were issued onwards clearance as "Direct Edinburgh (Field) FL350 report leaving FL300". They called display complete and 30 secs late' reported left FL300' - they were within 2-3 nms from the field.
Pretty to watch.
JohnB