AI-26

The AI-26 engine was created in the late 40s of the XX century especially for the first Soviet mass helicopter Mi-1 . Practically represents a “half” (one row of cylinders) of the ASh-82 engine without a boost system. Chief Designer - A. G. Ivchenko . The company that produced this engine, in different years, had various designations, at present - Motor Sich ^[1] . In total, more than 4000 AI-26 engines of various modifications were manufactured.

AI-26
AI-26V at the Finnish Aviation Museum ( Vantaa )
Specifications
Volume	20.6
Power	580 l with. on takeoff
Bore	155.5
Piston stroke	155
Number of cylinders	7
Cooling system	Air cooling
Dimensions
Dry weight	395