Typerated, in theory, fine. In practise, less so.
In 1969, 11Gp did their annual BoB display. We displayed at Finningley, Coltishall and Gaydon amongst others. The whole flying programme was organised down to routing and timing at 11Gp.
From a military perspective it served to commemorate the battle but it was Labour intensive.
From a civilian perspective the catchment area was relatively small, traffic more manageable you got to see both the air show and th a RAF at home.
Smaller crowds reduced the air show infrastructure needs, tentage from Service sources, and toilet facilities minimal.
Today, with H&S, public perceptions are higher, misappropriation of Servivce equipment and supplies is almost impossibly, and there are two others things missing:
Far fewer types
Far fewer airfields