Alfa Romeo 122

Alfa Romeo 122
Type	Piston aircraft engine
Manufacturer	Alfa Romeo
First run	1941

The Alfa Romeo 122 was a 12-cylinder inverted-V aircraft engine produced in 1941 by Alfa Romeo Milano as a licence-built Czechoslovakian Walter Sagitta, featuring a single-speed supercharger. The major variant, the 122 R.C.38 had a reduction gearbox, single stage super-charger and rated altitude of 3,800 m (12,500 ft).

Specifications

General characteristics

Type: 60° 12-cylinder inverted V-12 air-cooled engine
Bore: 118 mm (4.6 in)
Stroke: 140 mm (5.5 in)
Displacement: 18.36 L
Length: 1,790 mm (70.5 in)
Width: 725 mm (28.5 in)
Height: 781 mm (30.7 in)

Components

Supercharger: Centrifugal compressor, diameter 210 mm (8.3 in)
Cooling system: Air cooling

Performance

Power output: 500 HP (368 kW) at 3,800 m (12,500 ft)

Notes

Bibliography

Archivio Storico Alfa Romeo - Volume II. Torino, novembre 1998.

External links

Alfa Romeo aero engines

Piston engines	D2 110 115 121 122 125 126 128 129 135 136 Jupiter Lynx Mercurius RA 1000 RA 1050 Colombo S.53 Colombo S.63

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