A little more on my older offering.
Thanks to the peculiar shape of the bottom and a system of tubing putting in communication area of different pressure above and under the floating surface, the boat used a kind of air-cushion effect to decrease the hydro-dynamic drag. In 1918, in the last period of war, the Ricci firm designed the Ricci 8 IAS (Idroplano Anti Submergible or antisubmarine flying boat). It was a seaplane with a central hull and a single, shoulder-mounted wing. The hull had five formers; the wings, sturdy and thick, had a span of 8 meters and a surface area of 20 square meters. The engine was a 300-hp Fiat A.12 bis which drove a four bladded propeller carried as a pusher and mounted in a nacelle abobe the fuselage/wing centerline. Armament was a cannon in the bow. The end of the war brought further development to an end. Beside these actual constructions, the designing activity of E. RICCI touched a wide range of aviation technique as the flapping wings (1925), the large seaplane for transatlantic flights (1920), the helicopters (1945), the VTOL machines (1958) and rocket engines (1942). Built in 1920 as a direct derivation of the R. 6, the R. 9 was equipped with a rotative LE RHONE of 60 HP. Tested by B. ALBERTAZZI, it was presented to the Paris Show where won the “Meeting of Le, Bourget” piloted by RAPPINI.
Chris