Ok thanks OAC.
Now for some slight thread drift.
The CO 2 SQN in Vietnam (1968-69) I quoted had done an RAF fighter exchange.
The CO after him (1969-70) did an RAF QFI exchange at CFS.
And the CO (1967-68), who later became CAS, had done a transport secondment with the RAF on Dakotas as part of the RAAF contingent during the Berlin Airlift.
When CAS, in 1980 he flew RAAF Dakota A65-69 into Berlin. This Dak was based at Butterworth, Malaysia, and during June 1980 was ferried to Europe to be gifted to the Berlin Airlift Museum at Gatow. Appropriate to have a Berlin Airlift veteran flying it!
As only Brit, US or French aircraft were allowed safe passage through the Berlin air corridors (up to 1989), A65-69 was re-serialled as RAF ZD215 for the corridor ferry. Currently on display at Gatow.