VQ5X03,
Going through Pilot training in '41, all the signals classroom instruction your Dad would have received would have been at ITW (in his case at 6ITW, Aberystwith 4/42-7/42; in mine at 8ITW, Newquay 8/6/41-1/8/41). All it amounted to was Morse (IIRC, 6 words pm on the key and 4 on the Aldis lamp - great fun on the sands on a fine day, with one lamp on the clifftop and the other on the beach).
Bit puzzled about the "Controlled Descent through Cloud". Never heard of "CDJJ", (it was usually abbreviated to "QGH" from the old "Q" Code); and that wouldn't have been taught until much later, when he started flying - probably not till OTU.
Please tell us all you can glean from your Dad's notes (have you got his logbook ?) This is the place to tell them (so much has sadly been lost already).
Danny.
Last edited by Danny42C; 23rd Feb 2015 at 21:01.
Reason: Spacing