sixtiesrelic
TAA had three for a very short time when the kerfuffle about flight engineers was on, while AnsettANA blokes went on strike if my memory serves.
I was young then and nowhere old enough to be in great big planes, but I remember being told by one of the cramped blokes who reckoned three was too many.
I'm pretty sure it was the other way 'round. Ansett flew with the flight engineer for a short time and TAA didn't fly at all for a few days. When the flight engineer was strapped in he couldn't reach the pedals... that's the story that ran around El Toro caga (or pek pek bilong bullamacau) Towers in Franklin Street!