the history of the civil aviation flying unit (cafu) can be traced back to the air ministry's civil operations fleet founded in 1944. the caa and its predecessors have operated 49 aircraft of 13, primarily british, aircraft types including de havilland tiger moths, avro ansons, airspeed consuls, percival princes, de havilland doves, hawker siddeley hs 748s and hawker siddeley hs 125s.