Object Details
Manufacturer
Socitera Anonima Fiat, Turin, Italy
Physical Description
Type: Reciprocating, 6 cylinders, In-line, Water-cooled
Power rating: kw (300hp) at 1,600 rpm
Displacement: L ( cu. in.)
Bore and Stroke: mm ( in) x mm ( in)
Weight: 417.3 kg (920 lb)
Summary
The Societa Anonima Fiat of Turin, Italy was founded in 1898 by Giovanni Agnelli, and drew on its race car experience to manufacture its first aircraft engine in 1908. During World War I, Fiat produced over 15,000 aircraft engines, said to be more than all other Italian manufacturers combined. A total of 13,260 A-12 and A-12 bis engines were built between 1916 and 1919.
The six-cylinder, in-line, water-cooled A-12 engine produced 149 kW (200 shp), with the A-12 bis being a later development. In general, the dimensions were identical, but the A-12 bis had a 4.75 compression ratio, higher than that usually employed in the earlier model. The principal changes were new carburetors and manifolds, and the substitution of an oil pressure feed to the camshaft housing.
Among the aircraft powered by A-12 engines was the Societa Italiano Aviazione F.B. Biplane. This engine artifact has been modified for marine installation.
Credit Line
Gift of Mrs. Charles Ernst
Date
Circa World War I
Inventory Number
A19820091000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Reciprocating & Rotary
Materials
Ferrous Alloy
Non-Magnetic White Metal
Copper Alloy
Rubber
Paint
Unknown Coating
Dimensions
Length 182.4 cm (71.811 in.), Width 58.6 cm (23.071 in.), Height 117.5 cm (46.26 in.)
Country of Origin
Italy
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19820091000