When did airlines cease doing training circuits?

[spekesoftly]

Bedford

.....BOAC 707 bashing the circuit at Bedford, of all places.

I believe Bedford was often used for airline training. Nice long runway, convenient location, outside controlled airspace and not too busy.

Also used for training by the RAF. I recall doing practice ILS approaches and circuits in the early '70s in a Vickers Varsity, of all things!