02/28/2007. Remarks by Bernhard Klein: "In mid-1917 Ansaldo began construction of a single seat fighter with a shortened SVA fuselage, an in-line SPA 6 engine and vertical radiator. Modern sources state the first flight was on 11/30/1917. Various modifications were made and eventually the A.1 entered service in late 1918. About 100 A.1s were built but very few made it to front line squadrons. Besides Italy, it als saw service, after the war, in Polish, Latvian, Russian and Mexican air forces."