TTH, wonder if it was the same car? It was like this:
One Jules Brett was a copilot on 12, one of a fair number that would rather have been flying something else. He applied for the job with British Antarctic Survey. Enjoyed it so much that he immediately applied for the following season but his perfect had bagged that. As a gap filled he managed a year's loan service with SOAF. The Bristol followed.
It was definitely 1965 but I don't remember if it was a new C the or older.