My late father (Noel "Steve" Stevens) was a nav instructor with RATG after completing a tour in Europe with 106. Info I have is:
13/8/43: Rhodesian Air Trg Gp duties: supy
02/2/44: 26 Elementary Flg Trg group:RATG duties: Staff Nav
Then back to UK 07/09/45.
Unfortunately, his wartime log book was destroyed in an officers' mess fire in Japan in '47, so I only have his post-war logs. The info above I obtained from his service records.
Tim.