ShotOne, yours must have been rather a different world to mine as I knew several other-than-white aircrew officers in my time, although they were rather in the minority in terms of number.
One chap (of Jamaican background) was struggling a bit when learning to fly formation in the Gnat at Valley (didn't we all?), but went on a trip with the squadron boss (of Asian descent). We had weird formation call-signs back then, such as 'Milvus', 'Outward'...and 'Sambar' - so the two of them set off giggling like schoolgirls at ATC's reaction to their chosen call-sign.... It seems that the boss had decided on 'Sambo'
rather than 'Sambar', which broke the ice; the previously struggling student relaxed and subsequently flew an excellent trip!
I was lucky enough to go through Brawdy with him and his sense of humour; he later went on to have a very good FJ career.