| The
            first production Ivchenko AI-14 was qualified in 1947. 
            Thousands have been built both for fixed wing and helicopter
            applications.  
             The AI-14 is still in production by the Vedeneyev
            design bureau (VMKB) as the M-14 making it the only radial engine still in production
            in the world (per Richard Goode Aerobatics' link below). Zhuzhou
            (also spelt Quzhou) license built the AI-14 in China as the Huosai HS-6.  | 
           | 
          
            
                | Nine cylinder, air-cooled, radial engine |  
                | Displacement: 620 cubic inches (10.2 liters) |  
                | Bore x stroke: 105 x 130 mm |  
             
           |