08/31/2007. Remarks by Srecko Bradic: "Pictured during the King Alexander Trophy Air Race, this was the first FN built, and was powered by an 120 hp Mercedes D II six-cylinder, liquid-cooled in-line engine. Built by Zmaj in total 60 aircraft were delivered with this engine, and proved some better performance due to the smaller drag of the engine. Later aircraft also had a redesigned rudder."