Orders were placed for the FN.305 trainer by Belgium, Chile, France, Hungary, Portugal, Rumania, Switzerland, and Yugoslavia. Most were not delivered due to the start of World War II.
The Nardi FN.315s were sold to Hungary in 1939.
Captain Giovanni Zappetta and Guido Stellingwerf set a light aircraft speed record of 193.1 mph over 621 miles on July 17, 1936.
In 1939 a FN.305 won the endurance competition at the Raduno Internazionale del Littorio.