The ACAZ C.2, Ateliers de Construction Aeronautique de Zeebruge, was a prototype Belgian biplane fighter aircraft built in the 1920s.
Built entirely of Duralumin metal, it was an advanced design at the time of its first flight in 1926, but although evaluated by the Belgian Air Force, no orders were placed. Of conventional biplane construction,
The Adamoli-Cattani fighter was a prototype fighter aircraft designed as a private venture by two Italian aircraft builders in 1918.
The Adamoli-Cattani was intended to be the smallest practical biplane around the most powerful engine available to them, a 149 kW (200 hp) le Rhône M. The result was a reasonably conventional design, other than that the wings featured hinged leading edges in place of conventional ailerons. The Farina Coach Building factory in Turin began construction of the prototype; the Officine Moncenisio in Condove completed it.