In 1965 if you were on a VC10 I'm pretty sure you were on an RAF Transport Command 10 Sqn A/C and left from RAF Brize Norton, near Oxford.
The daily schedule for trooping families and troops was: BZ...Bahrain...Gan....S'pore...Hong Kong. The return was Gan...Nicosia...BZ.
and was run like an airline....Brize Movements looked like an airport terminal.
Edit: looks like I've had a memory lapse, happens a lot.
As Brian48Nav points out the VC10 did not start trooping from Brize till around 1967 so I have no idea where the poster could have flown from.
After 1967, it surely would have been from Brize.
btw I used to live in MQs at RAF Fairford when the 2nd Concorde, flown by Brian Trubshaw, did its first flight.
Damned if I can remember that date either!
@Brian48Nav..... I was an F/E on 48Sqn Hastings at Changi....Now I think of it that may have ended around 1965....
