[1] The C.220 was powered by a 71 kW (95 hp) Salmson 7AC seven cylinder radial engine driving a metal, two blade propeller.
One photograph shows the engine uncowled though the second aircraft, the C.221, which had a 75 kW (100 hp) Lorraine 5P five cylinder radial and was otherwise identical apart from using a different make of propeller, was recorded both with and without a narrow chord Townend ring type cowling.
Behind the engine the fuselage was a box girder structure covered in plywood, though the upper decking was rounded.
The forward of the two open tandem cockpits was placed between the wings at about mid-chord with the rear seat behind the trailing edge.
The C.220 had a triangular fin and an unbalanced rudder with straight, parallel side and rounded top and bottom.