The first Vedette was acquired by the Ontario Provincial Air Service in 1929 after it had proved itself for forestry work flying with the R.C.A.F. The original layout for a small forestry flying boat for civilian use was brought to Canada from England by W. T. Reid, the Chief Engineer of Canadian Vickers. The anticipated customer was Laurentide Air Service, however, with the advent of the OPAS, Laurentide cut back their operations. Since the specifications for the Vedette were similar to those required by the R.C.A.F. they agreed to take over the prototype.

Designated G-CYFS the prototype flew for the first time with a Rolls-Royce Falcon 111 engine on November 4, 1924. The original construction consisted of a wooden hull of cedar planking with double ply on the bottom over elm frames with a fabric wing and tail over wood and steel respectively. The results were generally satisfactory but the aileron control was judged too heavy and was modified with balanced ailerons and the engine was replaced with a new Wolseley Viper. Over the winter the recommendation that an air cooled engine would be more satisfactory for bush operations resulted in the installation of a 200 H.P. Wright J-4 Whirlwind being installed. The skeptics doubted that an air cooled engine would perform well in a pusher configuration but the manufacturer gave a money back guarantee that took the risk out of the experiment. ...

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