The Courlis was an all-metal high-wing cantilever monoplane with twin booms supporting a tail unit.

It was powered by a 190 hp (142 kW) Mathis G8R piston engine mounted in the rear fuselage in a pusher configuration.

The company did test fit the aircraft with a 220 hp (164 kW) Mathis engine but production was ended.

The aircraft flew for some years, owned by French private pilots, but by the mid-1950s, most had been withdrawn from service, with many being stored at Mitry-Mory airfield near Paris.

In 1961 the design was revised as the SUC-11G Super Courlis with a 240 hp (179 kW) Continental O-470M engine, but was abandoned after a prototype was built.