Fiat A.80

From Wikipedia, the free encyclopedia

The Fiat A.80 was a 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.

General characteristics

• Type: 18 cylinder air cooled radial
• Bore: 140mm (5.51 in)
• Stroke: 165mm (6.50 in)
• Displacement: 45.72 L (2788.9 cu in)
• Length: 1,155mm (45.47 in)
• Width: 653mm (25.71 in)
• Height: 1,335mm (52.56 in)
• Dry weight: 725kg (1598.4 lb)

Components

• Valvetrain: One intake and one sodium-cooled exhaust valve per cylinder
• Supercharger: Single Speed, Single Stage. 4100m rated altitude
• Fuel system: 1 fiat carb
• Fuel type: 87 octane
• Cooling system: air cooled

Performance

• Power output: 1,000hp @ 2,100 RPM @ 4100m, 1100hp @ 2100rpm @ Sea Level
• Compression ratio: 6.70:1
• Power-to-weight ratio: (1.60lb/hp) @ cruise speed

[edit] Applications

 Italy

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

[edit] References

• 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

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