Battle of Britain 'At Home' days.
Just dug some of my old Air Pictorials out and the July '64 has a list of the 'At Home' days for that year.
Sat 19th Sep 1964
Acklington (Flying Training Command)
Benson (Transport Command)
Biggin Hill (Flying Training Command)
Colerne (Transport Command)
Coltishall (Fighter Command)
Finningley (Bomber Command)
Gaydon (Bomber Command)
St Athan (Technical Training Command)
St Mawgan (Coastal Command)
Ternhill (Flying Training Command)
Waddington (Bomber Command)
How times change.
Incidentally the USAF strength for July '64 (not counting ANG and other reserves) was 850,000 men and 15,000 aircraft.