Human factors and PanAm
O. C.
I believe that PanAm latterly used Flight Engineers on most of their aircraft, relieving their pilots of some of their responsibilities, although the Captain remained ultimately responsible. On three of the four types of four-engined aircraft that I flew, it was usual for the F/E to handle the power settings, other than when it was necessary for a pilot to cut the power for an aborted T/O, prior to V1. ( I do not know what PanAm did.)
A Check Captain might well have flown as First Officer with this same Captain, years ago. ( As a 400 hour Pilot I has to "sign out" my then Chief Pilot, who was also my employer, on a type of aircraft which I had on my Commercial Pilots' Licence and he lacked on his ALTP - and he actually owned the aircraft... Could I have failed him ? He PASSED ! ( Even by my standards !) He usually flew the DC3, one with a Starboard passenger door, not many on the Register.)