Mikulin AM-39

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The Mikulin AM-39 was a 1940s Soviet aircraft piston engine. Representing a high-output version of the AM-35A, AM-39 was used on the Mikoyan-Gurevich I-220 and Polikarpov ITP fighters, and the Tupolev SDB bomber.

[edit] Specifications (AM-39)

General characteristics

• Type: 12-cylinder 60° Vee aircraft piston engine
• Bore: 160mm (6.30 in)
• Stroke: 190mm (7.48 in)
• Displacement: 46.66 L (2,847 in³)
• Dry weight: 1,080 kg (2,380 lb)

Components

• Supercharger: Two-speed centrifugal type supercharger with aftercooler
• Cooling system: Liquid-cooled

Performance

• Power output: 1,343 kW (1,800 hp) at 2,350 rpm
• Specific power: 28.8 kW/L (0.63 hp/in³)