The engine drove a pair of tractor propellers using a belt drive. Twin radiators were vertically mounted in a V configuration. The original intention had been to use a 50 hp Panhard-Levassor engine, but this proved unreliable when bench tested. Lacking funding for a new engine, Cody had to wait until the 50 hp (37 kW) Antoinette engine which had been fitted to the "Nulli Secundus" became available. This happened in August 1908, when Cody transferred the engine to his aircraft.