The C.109 was a parasol-winged braced monoplane of conventional configuration with fixed tailskid undercarriage. The pilot and single passenger sat in tandem open cockpits. C.109s were used in a number of record attempts of the day, and were used to set distance records in the under 350 kg class of 868 km on 19 May 1927 (piloted by Juste Thoret), and 1,581 km on 27 October 1927 (piloted by Max Knipping), a women's duration record of 26 hours 47 minutes on 27 July 1929 (piloted by Maryse Bastié), and the first crossing of Mediterranee by a woman, Léna Bernstein (19 August 1929), 2,268 km.
