The Fiat A.80 was an 18-cylinder, twin-row, air-cooled, radial aircraft engine produced during World War II. Rated at 750 kW (1,000 hp), it was a more powerful development of the 14-cylinder Fiat A.74.

A.80
Type Radial engine
National origin Italy
Manufacturer Fiat
Major applications
Developed from Fiat A.74

Variants edit

Fiat A.80 R.C.20
With reduction gear and supercharger, rated altitude 2,000 m (6,600 ft).
Fiat A.80 R.C.40
With reduction gear and supercharger, rated altitude 4,000 m (13,000 ft).
Fiat A.80 R.C.41
With reduction gear and supercharger, rated altitude 4,100 m (13,500 ft).

Applications edit

Specifications (A.80 R.C.41) edit

Data from [citation needed]

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: 750 kW (1,000 hp) at 2,100 rpm at 4,100 m (13,500 ft)
    820 kW (1,100 hp) at 2,100rpm at Sea Level
  • Compression ratio: 6.7:1
  • Power-to-weight ratio: 1.0 kW/kg (0.6 hp/lb) at cruise speed

See also edit

Related development

Related lists

References edit

  • 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