A Mark 5 was supplied to Ernie Earles/Renolds Tubes with a remit to update the design. The first prototype used the Mk 5 engine/gearbox unit and wheels. A second prototype was photographed with the engine modified to coil ignition and alternator electrics(but there are rumours this engine was only a mock-up). The Douglas factory then produced an engine that resembled the Dragonfly. Six machines were produced for the 1954 show at Earls Court, and badged as the Douglas Dart. Following protests from other manufacturers that the name 'Dart' was already being used, the bikes were rebadged 'Dragonfly'. Early production Dragonflies incorporated several modifications to overcome some of the shortcomings experienced with the 6 original 'Darts'. Later production Dragonflies incorporated further modifications. Evidently, production ceased some time during 1956 - the '57 machines being stock left over from the previous year - most of which were sold through Pride and Clarke.
Eddie.