Alfa Romeo 115

The Alfa Romeo 115 is an Italian six-cylinder air-cooled inverted inline engine for aircraft use, mainly for training and light planes, based on the de Havilland Gipsy Six engine. Production totalled approximately 1,600 units. Derivatives of the 115 include the -1, bis, ter and Alfa Romeo 116.

Description
The Alfa Romeo 115 series of engines closely follows the original de Havilland Gipsy Six engines in having one-piece Elektron casting crankcases with cover plates, steel cylinders, finned for cooling, and detachable aluminium alloy cylinder heads. The six-throw one-piece counterbalanced crankshaft is carried in seven plain journal bearings and the propeller is driven directly by the crankshaft.

Variants

 * 110ter:


 * 4-cylinder version of the 115ter


 * 115-1 (115-I):
 * 115bis (115-2 / 115-II):
 * 115ter (115-3 / 115-III):
 * 116-1 (116-I): The 115 bored out to 120 mm developing 220 hp at 2,360 rpm, otherwise similar.

Applications

 * Ambrosini SAI.2S (115-1)
 * Ambrosini SAI.3
 * Ambrosini S.7 (115ter)
 * Bestetti BN.1 (one prototype)
 * Breda Ba.79S
 * CANT Z.1012 (or 110)
 * Caproni Ca.164
 * Caproni Ca.309 Ghibli (115bis)
 * Fiat G.46-1B (115bis)
 * Fiat G.46-3B (115bis)
 * Fiat G.46-4B (115bis)
 * Fiat G.46-A (115ter)
 * Fiat G.46-3A (115ter)
 * Fiat G.46-4A (115ter)
 * Nardi FN.305
 * Nardi FN.315
 * Saiman 200