The Red Button
A number of posters earlier had suggested a red button to turn off some or all the Automatics.
As a York F/O in 1953, a new switch was fitted to my control column so that I, as F/O, could disconnect the A/P. The other A/P controls were by the Captain's left hand. The Training Captain with whom I was flying said that there had been a " hard over" by this kind of A/P, ( possibly on a Tudor (?), which was also built by Avro ) and this would allow me to regain normal control, hand flying.
( Some of the radio controls were not accessible from the F/O's seat. But I controlled the fuel, u/c, flaps and sychronised the props !)