And why? We don't know, but ROLLASON, MUIR & RICKARD, of the Croydon School of Flying at Croydon Airport (Fairfield 6186) and the South Downs Aero Club (Yapton 222) at Ford, Sussex (You know-Croydon Efficiency at provincial rates), dispense really efficient flying Instruction. They also do repairs to aircraft and engines and run air taxis and pleasure flights.