Just watched 12’oclock high again, was suprised at how little actual flying simulated or otherwise is depicted in the film. Most of the tension and emotion is shown through the effects to the crews of the missions .

When you did see aircraft three were quite well depicted
Picadilly Lady
Fuzzy Fuzz [i think]
and of course The leper colony
were these [as i suspect ficticious bombers] or did they really exist as such.
More importantly do any of the B-17’s used in the film still exist?.
Still a great film to watch