A brief dit on what one might call part of the "social side" of the Display Circus....
I was involved in the Circus in the late 70s, early 80s (dates, locations and types kept obscure to protect the guilty!), and recall the "airshow groupies". As the name would suggest, in those days of fewer STIs and less security, the aim of these ladies (sic), who visited many shows, was to experience ..... err ... relations ..... in the cockpit of parked display aircraft. Ideally, but not necessarily exclusively, with the pilot.
In the year I recall, it was the first (European?) display season for the F-15, who were very much the stars of the shows. And of course, No 1 on the girls' "hit list". Not sure if any managed it, but if not, it were not for want of trying.
Despite being (a little) more roomy and comfortable, my rotary cockpit (sic!) was sadly not in demand ........
.......... or perhaps it was just me..........