Fiat A.53

A.53
Fiat A.53
Type	Piston engine
National origin	Italy
Manufacturer	Fiat
First run	1931

The Fiat A.53 was a seven-cylinder, air-cooled radial piston engine developed in Italy in the 1930s as a powerplant for aircraft. ^[1]

Applications

• Caproni Ca.100
• CNA Delta
• Fiat TR.1
• Savoia-Marchetti S.56

Specifications (A.53)

Data fromJane's All the World's Aircraft 1931 and Masino. ^{[2] [3]}

General characteristics

• Type: 7-cylinder air-cooled radial
• Bore: 105 mm (4.13 in)
• Stroke: 120 mm (4.72 in)
• Length: 823 mm (32.40 in)
• Diameter: 900 mm (35.43 in)
• Dry weight: 147 kg (324 lb) dry

Components

• Valvetrain: Overhead valves operated by pushrods and rockers
• Supercharger: centrifugal single-stage
• Fuel system: oil heated carburetor
• Oil system: dry sump with two pumps
• Cooling system: Air-cooled

Performance

• Power output: 115 hp (86 kW) at 1,900 rpm - normal

120 hp (89 kW) at 2,100 rpm - maximum

• Compression ratio: 5.5
• Specific fuel consumption: 0.32 kg/kWh (0.52 lb/(hp⋅h))

See also

Related lists

• List of aircraft engines

References

1. Jotti, da Badia Polesine (1934). Annuario dell'aeronautica Italiana 1934. Milan: Libreria Aeronautica.
2. Grey, C.G., ed. (1931). Jane's All the World's Aircraft 1931. London: Sampson Low, Marston & company, ltd. p. 59d.
3. Giovanni Masino, Fantasmi di aerei e motori Fiat dal 1935 al 1945 I (PDF), su www.avia-it.com.