Auto pilot
In the early days on the OCU at Thorney the route proving flight was a trip to Malta via a Gib night stop where the flight engineer did the servicing to the delight of the techies who got away down town very quickly. As the trip to Gib went out into the Atlantic I believe to make it a longer flight for the Aircrew all that hand flown time was good experience. The other reason to go to Malta was to get in two weeks night flying from the Sunspot dispersal as you couldn't night fly at Thorney as all the retired Navy big wigs didn't like being kept awake by the drone of the Herc. If you wanted to the techies could get to Malta for two weeks every other month, hell wasn't it. Malta was also the only place that I know of where a Herc suffered a Giraffe strike, but that's another story!