First flown in 1928, the type served with the two units and operated mainly as military flying-boats with the Regia Aeronautica, although commercial examples were produced, the initial S.62 and later S.62bis were powered by 372.6kW R1 and 559kW Isotta-Fraschini Asso engines respectively. As a three-seat reconnaissance aircraft, it was armed with Lewis machine-guns in the nose cockpit and two more in a midships cockpit. The S.62bis had the open midships position replaced by a twin-gun turret.

A four seat reconnaissance bomber and around 40 were built under licence in Spain with 600 h.p. Hispano-Suiza 121B engines.

The Savoia S-62 flying boat had entered service with the VVS RKKA under the designation MR-4, was successfully produced in the Russian Taganrog workshops.

American Aeronautical Corp licence built one S-62 in 1928 c/n 6202. ATC 2-320 was issued in 1931. Equipped with a 500 hp engine it was configured for commercial operations with a seven place cabin.

S.62
Engine: 1 x Isotta-Fraschini Asso 750, 634kW
Max take-off weight: 5030 kg / 11089 lb
Loaded weight: 2630 kg / 5798 lb
Wingspan: 16.66 m / 55 ft 8 in
Length: 12.26 m / 40 ft 3 in
Height: 4.19 m / 14 ft 9 in
Wing area: 69.5 sq.m / 748.09 sq ft
Max. speed: 220 km/h / 137 mph
Ceiling: 4900 m / 16100 ft
Range: 2000 km / 1243 miles
Armament: 4 x 7.7mm machine-guns, 600kg of bombs

American Marchetti S-62
1928
3 seat armed scout
One built in the US
Engine: Isotta-Fraschina, 500 hp
Prop: 2 blade wooden fixed pitch
Wingspan: 54 ft 8 in
Length: 40 ft 3 in
Wing area: 748 sq.ft
Empty weight: 5798 lb
Loaded weight: 11,089 lb
Useful load: 2530 lb
Max speed: 137 mph
Cruise: 118 mph
Stall: 49 mph
Ceiling: 16,100 ft
Range: 530 mi
Seats: 8
Armament: 3 x .30 Lewis machine guns

This 1925 biplane flying-boat was produced in two forms: the standard S.59 with a 298kW Lorraine-Dietrich engine and the S.59bis with a 372.6kW Isotta-Fraschini Asso 500Ri engine. Examples of both versions went into commercial and military service during the 1920s.

S.59bis
Max take-off weight: 2950 kg / 6504 lb
Loaded weight: 1950 kg / 4299 lb
Wingspan: 15.5 m / 51 ft 10 in
Length: 10.36 m / 34 ft 0 in
Height: 3.5 m / 12 ft 6 in
Wing area: 60 sq.m / 645.83 sq ft
Max. speed: 200 km/h / 124 mph
Ceiling: 4550 m / 14950 ft
Armament: 1 x 7.7mm machine-gun, 280kg of bombs

The Savoia-Marchetti S.56 of 1924, a three-seat trainer/tourer flying-boat, was an unequal-span biplane mainly of wooden construction. Pilot and co-pilot were seated side-by-side in separate cockpits equipped with dual controls, a third cockpit being located just behind them. Power was provided by a 52kW Anzani engine, but two S.56A boats built with 60kW Anzanis had a slight increase in wing span and were given amphibious capability by the introduction of manually-retracted wheel landing gear.

At least 12 S.56As were sold to private owners and clubs and four were used by the Regia Aeronautica for training; they were powered by a variety of engines, including the 86kW Fiat A.53, 101kW Fiat A.54, and Walter Venus radials.

The American Aeronautical Corporation began licence-production of the three place S.56 in 1929 (ATC 287), powered by the 90 hp / 67kW Kinner K5 engine, and three two-seat machines were followed by at least 40 three-seater.

American Aeronautical Corp built an all-stainless-steel version of Savoia Marchetti S-56 powered by a 210hp Kinner, NX749N. It was exported to Italy.

The S-56 selling for $7,375 with starter and nav lights. Twenty-five were built on Long Island, New York including NC192/194M, NC324N/325N, NC349N, NC352N/356N, NC371N, NC378N, NC380N, NC382N/383N, NR898W, NC900V/906V, and NC908V, of which three were converted to S-56-B (ATC 2-95) and one to S-56-C (ATC 2-96) for initial production models.

In 1930 the S.56B, powered by a 93kW Kinner B5, was flown in the USA. Sellong for $7,875, ten were built including NC67K, NC324N, NC351N, NC356N, NC386N, NC858W, NC898W, NC897V, NC900V, and NC906V, of which three were converted to S-56-31 (2-332) for two two-place modifications. One was built with an enclosed cockpit canopy and one, converted to single-seat capacity, with additional fuel tanks and redesignated S.56C, was used on a round-the-world trip by American businessman Zachery Reynolds.

American Aeronautical Corp S-56-C, or S-56-31 conversions in 1930 were NC67K, NC858W, and NC898W plus NC14381 which wore an out-of-sequence c/n 55, with 100hp Kinner engines.

An all-metal version of the S.56 was built by the American Edwin Budd Corporation in 1932 and designated Budd BB-1.

S.56A
Max take-off weight: 975 kg / 2150 lb
Wingspan: 10.72 m / 35 ft 2 in
Length: 7.8 m / 26 ft 7 in
Height: 2.99 m / 10 ft 10 in
Wing area: 26.5 sq.m / 285.24 sq ft
Max. speed: 138 km/h / 86 mph
Ceiling: 1670 m / 5500 ft

American Aeronautical Corp S-56
Engine: Kinner K-5, 90hp
Wingspan: 34’1″
Length: 25’0″
Useful load: 699 lb
Max speed: 86 mph
Cruise speed: 75 mph
Stall: 40 mph
Range: 290 mi
Ceiling: 7000 ft
Seats: 3

American Marchetti S-56, BB-1 / American Aeronautical Corp S-56-B
1926
Engine: Kinner B-5, 125hp
Prop: 2 blade wooden fixed pitch
Wingspan: 31 ft 1 in
Length: 25 ft 7 in
Wing area: 285 sq.ft
Empty weight: 1350 lb
Loaded weight: 2150 lb
Useful load: 738 lb
Max speed: 95 mph
Cruise: 80 mph
Stall: 40 mph
Ceiling: 7000 ft
Range: 280 mi
2-3 seat civil transport/trainer
36-40 built in the USA

American Aeronautical Corp S-56-C / S-56-31
Engine: Kinner, 100hp

American Aeronautical Corp built the Savoia S-31 open cockpit amphibian biplane in 1926.

Engine: Kinner R-440, 125hp
Wingspan: 34’2″
Length: 25’0″
Useful load: 738 lb
Max speed: 98 mph
Cruise speed: 80 mph
Stall: 38 mph
Range: 320 mph
Seats: 3

The aircraft was built for a 1920 Schneider Trophy races but failed to participate as the engine was not ready.