Alfa Romeo D2

D2
Alfa Romeo D2
Type	nine-cylinder radial engine
Manufacturer	Alfa Romeo
First run	1930s
Number built	~600

The Alfa Romeo D2 was a nine-cylinder radial engine for aircraft use produced in Italy. It was typically rated between 240-270 hp. The engine was designed by Vittorio Jano and produced 600 units between 1931-1934. This engine was also first purpose-built aircraft engine produced by Alfa Romeo, before it all Alfa engines used in airplanes were derived from engines used in cars. A supercharged derivative was produced as the D2 C..

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