Fiat A.80

A.80
Type	Radial engine
Manufacturer	Fiat

The Fiat A.80 was an 18-cylinder, twin-row, air-cooled, radial aircraft engine produced during World War II. Rated at 1,000 hp (745 kW), it was a more powerful development of the Fiat A.74.

Variants

Fiat A.80 R.C.20

With reduction gear and supercharger, rated altitude 2,000 m (6,600 ft).

Fiat A.80 R.C.41

With reduction gear and supercharger, rated altitude 4,100 m (13,500 ft).

Applications

• Aeronautica Umbra Trojani AUT.18
• Breda Ba.65
• CANSA FC.20
• Fiat BR.20
• Fiat G.18
• Savoia-Marchetti SM.79

Specifications (A.80 R.C.41)

Data from

General characteristics

• Type: 18-cylinder air-cooled radial
• Bore: 140 mm (5.51 in)
• Stroke: 165 mm (6.50 in)
• Displacement: 45.72 L (2789.9 cu in)
• Length: 1,155 mm (45.47 in)
• Width: 653 mm (25.71 in)
• Height: 1,335 mm (52.56 in)
• Dry weight: 725 kg (1598.4 lb)

Components

• Valvetrain: One intake and one sodium-cooled exhaust valve per cylinder
• Supercharger: Single Speed, Single Stage. 4,100 m rated altitude
• Fuel system: 1 Fiat carburettor
• Fuel type: 87 octane
• Cooling system: air-cooled

Performance

• Power output: 1,000 hp at 2,100 rpm at 4,100 m (13,500 ft)

  1,100 hp at 2,100rpm at Sea Level

• Compression ratio: 6.7:1
• Power-to-weight ratio: 0.6 hp/lb at cruise speed

See also

Related lists

• List of aircraft engines

References

Wikimedia Commons has media related to Fiat A.80.

• Gunston, Bill. (1986). World Encyclopaedia of Aero Engines. Patrick Stephens: Wellingborough. p. 56
• Ragazzi, Paolo (1938). The Power of Aircraft Engines at Altitude. p. 3