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
The de Havilland Gipsy Six is a British six-cylinder, air-cooled, inverted inline piston engine developed by the de Havilland Engine Company for aircraft use in the 1930s. It was based on the cylinders of the four-cylinder Gipsy Major an ...
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
The de Havilland Gipsy Six is a British six-cylinder, air-cooled, inverted inline piston engine developed by the de Havilland Engine Company for aircraft use in the 1930s. It was based on the cylinders of the four-cylinder Gipsy Major an ...
engines in having one-piece
Elektron casting crankcases with cover plates, steel cylinders, finned for cooling, and detachable
aluminium alloy
An aluminium alloy ( UK/IUPAC) or aluminum alloy ( NA; see spelling differences) is an alloy in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin, nickel and zinc. There ...
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 developing at 2,360 rpm, otherwise similar.
Applications
* Ambrosini SAI.2S (115-1)
* Ambrosini SAI.3
*Ambrosini S.7
The Ambrosini SAI.7 was an Italian racing aircraft flown before World War II that entered production as a military trainer (designated simply S.7) after the war. It was of conventional configuration, constructed of wood, with a Conventional landi ...
(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)
Specifications (115-1)
See also
Notes
References
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{{Alfa Romeo aeroengines
115 115 may refer to:
*115 (number), the number
*AD 115, a year in the 2nd century AD
*115 BC, a year in the 2nd century BC
*115 (Hampshire Fortress) Corps Engineer Regiment, Royal Engineers, a unit in the UK Territorial Army
*115 (Leicestershire) Field ...
Air-cooled aircraft piston engines
1930s aircraft piston engines
Inverted aircraft piston engines
Straight-six engines