BA,
I've forgotten if we had fuel trimmers on the Viscount but we certainly had them on the Argosy.
Low level SOP was to keep them set to datum for the prevailing OAT.
People would sometimes use them to control speed which meant that, if set to less than datum, full power was not available when the throttles were opened - as a crew discovered when trying to climb over a hill following a slight nav error in the Far East.
Just made it but rumour was they picked up a bit of foliage on the way
Again TBFTGOGGI
dixi188,
Mil Arg was 14,500/785 for T/O
WTF do I remember that? Must be creeping senility