The S.19 was a single-seat biplane flying boat with its engine mounted on struts above its hull and below its upper wing. The 373 kW (500 hp) Ansaldo San Giorgio 4E-29[1] engine drove a two-bladed pusherpropeller. Small stabilizer floats were mounted beneath the lower wing on each side.
Operational history
The S.19's engine was not ready in time for the 1920 Schneider Trophy race, and the aircraft did not participate.