The Isotta Fraschini Gamma was an air cooled aircraft engine developed by the Italian engineering company Isotta Fraschini in the 1930s. It was an inverted V12 rated at over . Produced in small numbers for one-off aircraft, including the Ambrosini SAI.107 and Caproni Vizzola F.5 Gamma fighter trainer prototypes, it was developed into the more powerful and more numerous

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Design and development

The Gamma was an air cooled inverted V engine with 12 cylinders arranged in two banks, each cylinder of bore and stroke . Isotta Fraschini produced the Gamma in small numbers during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

at a rating of about . The engine formed the basis for a number of other aircraft engines produced by the company. The more powerful

was developed as a larger complement to the Gamma. While the

Beta Beta (, ; uppercase , lowercase , or cursive ; or ) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Ancient Greek, beta represented the voiced bilabial plosive . In Modern Greek, it represe ...

straight-six engine A straight-six engine (also referred to as an inline-six engine; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine balanc ...

was essentially one half of the engine, the

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mated two Gamma engines to a common crankshaft to create an X24 engine. The larger engines shared with the Gamma a problem cooling the rearmost cylinders which impeded development. In 1942, there was speculation in the UK about a powerful Italian engine called the Isotta Fraschini Gamma that produced at 2200 rpm for take-off and had a displacement of with a bore of and stroke of .

Variants

;Gamma R.C.15: at ;Gamma R.C.35: at

Applications

* Ambrosini SAI.107 * Caproni Vizzola F.5 Gamma * Savoia-Marchetti SM.86

Specifications

References

Notes

Bibliography

* * * * * * * {{Isotta Fraschini aeroengines Air-cooled aircraft piston engines 1930s aircraft piston engines Inverted V12 aircraft engines

Gamma Gamma (; uppercase , lowercase ; ) is the third letter of the Greek alphabet. In the system of Greek numerals it has a value of 3. In Ancient Greek, the letter gamma represented a voiced velar stop . In Modern Greek, this letter normally repr ...