Don't know if this is of any interest, but as a teenager on 1 August 1963 I flew out to Singapore on British United Airways Britannia G-AOVE from Stansted. We routed via Istanbul and Bombay. By 1965 the Far East trooping contract had passed to British Eagle and I flew back to Blighty on Britannia G-AOVE on 7 Sep 65. I think the transit stops may have been the same (but I might be wrong) and we came back into LHR.at some ungodly hour in the early morning. Of the two airlines I much preferred British Eagle which was a wonderful outfit with a great spirit. The hosties in their plum red uniforms were a picture!