We had 9 AA and 1 PA aircraft. Flew as an F/E and the hardest thing was finding that duct pressure gage. I think it was only in the same spot on the 2 -123's. The captain would ask if we had enough air pressure to start, darned if I knew, had to find the

gage.
I don't think any one is flying the old girls state side, sad. I flew on to the bone yard, she went over 60,000 hours on the trip to DM.
Built when it was assumed the pilots were smarter than the aircraft.