I flew on Carvair G-ASDC LTN-NAP in the late 70's carrying a RR Spey to change on a Monarch BAC 1-11. I arrived at work in time to be advised that the rest of the engine change team had gone on the relief 1-11 and I had drawn the short straw to fly on the Carvair. I was more than happy with the arrangement and thoroughly enjoyed the flight.
Temps.