Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

Societa Anonima Alfa Romeo of Milan, Italy, manufacturer of the famous Alfa Romeo automobiles, entered the aircraft engine business in 1917, and acquired a license for the Roy Fedden designed Bristol Jupiter in 1925 and, later in 1931, licenses for the Bristol Mercury and Pegasus engines. These actions were largely directed by the Italian government following World War I as a means of regenerating Italian aviation. A Jupiter license was also acquired by the well-known French manufacturer Gnome-Rhone, indicating the connected international development of aircraft engine technology.

From the Pegasus engine, the company developed the Alfa 125 R.C.35 and 125 R.C.10. From the Alfa 125 R.C., in 1936, Alfa-Romeo developed the Alfa R.C.34 and 126 R.C.10, and later the Alfa 128 R.C.21. This was a family of nine-cylinder, air-cooled, radial engines with 4 valves per cylinder whose performance was progressively uprated.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Date Circa 1937 Country of Origin Italy Type PROPULSION-Reciprocating & Rotary Manufacturer Societa Anonima Alfa Romeo, Milan, Italy
 Physical Description Type: Reciprocating, 9 cylinders, geared, supercharged, radial, air-cooled Power rating: 708 kW (950 hp) at 2,300 rpm Displacement: 28.6 L (1,746 cu in.) Bore and Stroke: 146 mm (5.75 in.) x 190 mm (7.50 in.) Weight: 516.2 kg (1,138 lb) Dimensions Diameter 141 cm (55.5 in.), Length 132.8 cm (52.3 in.)
 Materials Steel, Aluminum, Copper, Plastic, Leather, Cadmium plating, Ceramic, Paint, Rubber
 Inventory Number A19670075000 Credit Line Found in the collection Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.