SASLESS
I only flew over London once....and that was by mistake....amply pointed out to me and my Mate by serious powers that were at Redhill's upper floors. We did not know it was London....but we did know exactly what time it was when we determined where we were....and where we were not.
I think this also happened, at night, in 1940 but it wasn't in a helicopter and the pilot and nav had an interview without coffee with a big cheese in Berlin
HF