[3][4] The Wibault 220 was powered by two 450 hp (340 kW) Gnome-Rhône 9Ac Jupiter nine-cylinder radial engines, each wing-mounted under the outer centre-section.

They were attached at three points on the front and rear spars by a system of duralumin plates and steel tubes and were enclosed in teardrop cowlings with their cylinder heads exposed for cooling.

The nose was semi-cylindrical in plan and contained an open cockpit for the navigator, who was provided with a flexibly mounted pair of machine guns.

Behind him the fuselage tapered slightly to a conventional, cantilever tail with its triangular tailplane mounted on top and carrying narrow chord elevators.

[3] The Wibault 220 had fixed, conventional landing gear with its mainwheels on V-struts hinged to the lower fuselage frames.