Thanks Hempy, another duck to join the row!
From my link, 10 FTS formed Dec 1935, presumably becoming 10 SFTS wef 3/9/39, but seemingly disbanded 1/11/40 and not reformed until 15/1/52! So not surprisingly the neat FTS/SFTS/AFU/SFTS/FTS cycle of 3FTS doesn't seem to apply to 10 (O)AFU. Given the paucity of detail for 10 FTS on my link though, I suspect that it might well be the same unit, and if so I love the 10 FTS motto for a Nav AFU; 'Anywhere Any Time'.
We know a song about that, don't we boys and girls?