I.S.V.A., Cornigliano Ligure, 1917. In this photo we see the seaplane version of the famous S.V.A. airplane, derived from the S.V.A. 4 and S.V.A. 5 that Ansaldo created in collaboration with Colonel Guidoni and at the request of the Royal Navy. The seaplane saw the application of tubular floats equipped with special hydroplane fins to facilitate detachment from the water. The tests gave satisfactory results, but the aircraft was difficult to fly (especially when ditching) and only 50 copies were ordered.