Thanks Propstrike – although the aircraft featured is the one that was in the BBC TV doc The Last African Flying Boat, my trip was not that flight but one carried out a while later by which time it had been re-registered Z-CAT. However, anyone visiting the forum mentioned in the link should first go to the beginning where the genesis of the African flights is described in excellent manner by one of the pilots involved at the time. His story does include the TV programme. I wrote my bit as a sort of postscript looking at the flights from the other end of the operation.