VK-106
Type	V12 inline engine
Manufacturer	Klimov
First run	1943
Number built	Prototypes only
Developed from	Klimov M-105

The Klimov VK-106 was an experimental liquid-cooled V12 piston aircraft engine intended for Soviet aircraft during World War II.^[1]

Contents 1 Development 2 Specifications (VK-106-1sk) 3 See also 4 References 4.1 Notes 4.2 Bibliography

[edit] Development

With the VK-105PF2 exhausting the potential of the M-105, Klimov designed a new VK-106 engine in 1943. Since air combat on the Eastern Front took place primarily at medium altitudes (under 4,000 m {13,000 ft}), the new engine was built specifically for peak performance at those altitudes with a reduced compression ratio and a single-speed supercharger. Although reliable and easily installed in M-105-powered aircraft, VK-106 did not enter production because it differed from M-105 enough to require new tooling, and Soviet engine factories at the time lacked the capacity to produce another design. Like M-105P, VK-106P could house an autocannon in the "vee" between the cylinder banks.

[edit] Specifications (VK-106-1sk)

Data from Kotelnikov^[2]

General characteristics

• Type: 12-cylinder supercharged liquid-cooled piston aircraft engine
• Bore: 148mm (5.83 in)
• Stroke: 170mm (6.69 in)
• Displacement: 35.08 liters (2,140 in³)
• Dry weight: 600 kg (1,320 lb)

Components

• Supercharger: Gear-driven single-stage single-speed centrifugal type supercharger
• Fuel type: 95-octane rating gasoline
• Cooling system: Liquid-cooled

Performance

• Power output:
  
  • 1,007 kW (1,350 hp) at 2,600 rpm for takeoff
  • 1,007 kW (1,350 hp) at 2,000 m (6,560 ft)
• Specific power: 28.8 kW/L (0.63 hp/in³)
• Compression ratio: 6.5:1
• Power-to-weight ratio: 1.68 kW/kg (1.02 hp/lb)

[edit] See also

Related development

• Hispano-Suiza 12Y
• Klimov M-105
• Klimov VK-107
  

Comparable engines

• Allison V-1710
• Daimler-Benz DB 601
• Rolls-Royce Merlin
  

Related lists

• List of aircraft engines
  

[edit] References

[edit] Notes

[edit] Bibliography

v • d • e Klimov aircraft engines Piston engines M-100 · M-103 · M-105 · M-110 · M-120 · VK-106 · VK-107 · VK-108 · VK-109 · VK-110 · VK-150 Turbojets RD-45 · RD-500 Turbofans RD-33 Turboprops and turboshafts TV3-117 · TV7-117 · VK-1500

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