 It was designed to meet a new Schneider Trophy rule that each competitor should carry 300 kg (660 lb) of disposable load.It was a single-seat biplane flying boat with a 490 kW (650 hp) Fiat A.14 engine strut-mounted above the upper wing, driving a four-blade propeller in tractor configuration.Early test flights showed a torque reaction from the powerful engine and the hull and rudder had to be redesigned.