 It made its maiden flight in August 1935, powered by a 720 hp (537 kW) Hispano-Suiza 9Vbrs radial engine.With this engine it reached a speed of 352 km/h (219 mph).In October that year it was re-engined with a 680 hp (507 kW) Hispano-Suiza 14Hbrs radial in a NACA cowling, increasing the speed and the floats were modified.