Basic Flying Training (real Provost), 1955; during an early solo GH sortie, I heard an R/T call from a fellow student “Switching to 121.5 for Practice Pan”. I changed frequency to follow the proceedings, the subsequent calls were:-
“Practice Pan, Practice Pan, Practice Pan, this is *****”
“**** this is @@@@ no Practice Pans today, there’s a Royal Flight”
“@@@@ This is **** Roger. Practice Mayday, Practice Mayday, Practice Mayday,”
My course mate did get an interesting debrief back at Feltwell, which made him wish he hadn’t said that, but he eventually retired as a 2 Star which was many grades higher than I reached.