Anzani A 2, Radial 3 Engine


Display Status:

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Collection Item Summary:

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.

Collection Item Long Description:


Circa 1910

Inventory Number


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.

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

Data Source

National Air and Space Museum

Restrictions & Rights

Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum


PROPULSION-Reciprocating & Rotary