Anzani A 2, Radial 3 Engine

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Physical Description
Type: Reciprocating, radial, 3 cylinders, air cooled
Power rating: 22.4 kW (30 hp) at 1,300 rpm
Displacement: 3.1 L (189.69 cu in.)
Bore and Stroke: 105 mm (4.13 in.) x 120 mm (4.72 in.)
Weight: 47.6 kg (105 lb)
manufactured circa 1910, missing carbuetor, push rods, magneto and intake tubes.
Anzani aircraft engines were first produced in 1908 by a French firm well known as manufacturers of motorcycle engines. Air-cooled Anzani radials, also produced in England and Italy, were the best known of this firm’s engines, and this model was one of the earliest air-cooled stationary radial types. The Model A 2 was introduced in 1910. It was an improvement over earlier Anzani three-cylinder, air-cooled, fan-shaped engines, and powered Deperdussin, R. Sommer, and Bleriot XI aircraft.
Except for valve location and method of attaching cylinders, the radial and fan types were similar, with cast iron cylinders and integral cooling fins. Practically all designs used Zenith carburetors and Gibaud magnetos.
By 1913 Anzani was producing no fewer than seven types of aircraft engines. An 89kW (120-hp), 10-cylinder model was used by Clyde Cessna in his first aircraft. Bellanca was another American aircraft manufacturer that utilized later Anzani engines.
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National Air and Space Museum Collection
Circa 1910
Inventory Number
Credit Line
Gift of Mrs. Giuseppe M. Bellanca
Country of Origin
Aluminum, Steel, Paint, Preservative coating
3-D (object): 83.8 × 67.3 × 43.2cm (2 ft. 9 in. × 2 ft. 2 1/2 in. × 1 ft. 5 in.)
Weight without stand is 106 pounds
National Air and Space Museum
Restrictions & Rights
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
PROPULSION-Reciprocating & Rotary