Alfa Romeo 115

The Alfa Romeo 110 and 115 were Italian air-cooled inverted inline engines for aircraft use, mainly for training and light planes. The Alfa Romeo 115 was a six-cylinder engine produced between 1936 and 1956; some 1,600 units were built. It was based on the de Havilland Gipsy Six engine.

Alfa Romeo 115
Power output:89 kW (120 hp)

Applications:

Ambrosini SAI.2S (version 115-I)
Ambrosini SAI.3
Bestetti BN. 1 (one prototype)
Breda Ba.75 (prototypes)
Breda Ba.79S
CANT Z.1012 (or 110)
Caproni Ca.164
Caproni Ca.309 Ghibli (version 115-II)
Nardi FN.305
Nardi FN.315
Saiman 200

Alfa Romeo 115bis
Power output: 145 kW (195 hp)

Applications

Fiat G.46-1B
Fiat G.46-3B and G.46-4B

Alfa Romeo 115ter
Type: six-cylinder inverted air-cooled inline engine
Bore: 118 mm (4.65 in)
Stroke: 140 mm (5.52 in)
Displacement: 9.186 L (560.6 in3)
Length: 1,642 mm (64.7 in)
Width: 498 mm (19.6 in)
Height: 825 mm (32.5 in)
Dry weight: 233 kg (515 lb)
Valvetrain: Two valves per cylinder, sodium-cooled exhaust valves
Fuel system: Two downdraught carburettors
Fuel type: 100/130 grade
Oil system: Pressure type. One pressure and three scavenger pumps
Cooling system: Air-cooled
Power output: 168 kW (225 hp) (max power), 160 kW (215 hp) (normal)
Compression ratio: 6.5:1
Specific fuel consumption: 150 g/hp/hr (0.55 lb/hp/hr) (take-off)
Oil consumption: 2.5 kg/hr (5.5 lb/hr)
Power-to-weight ratio: 0.72 kW/kg (0.44 hp/lb)

Applications:

Ambrosini S.7
Fiat G.46-A, G.46-3A and G.46-4A