Klimov VK-106

The Klimov VK-106 was an experimental liquid-cooled V-12 piston aircraft engine intended for Soviet aircraft during World War II.


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.

pecifications (VK-106P)


type=12-cylinder supercharged liquid-cooled piston aircraft engine
bore=148mm (5.83in)
stroke=170mm (6.69in)
displacement=35.08 liters (2,140 in³)
weight=600 kg (1,320 lb)
supercharger=Gear-driven single-stage single-speed centrifugal type supercharger
fueltype=95-octane rating gasoline
*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)
specpower=28.8 kW/L (0.63 hp/in³)
power/weight=1.68 kW/kg (1.02 hp/lb)

Related content

Related developments:
Hispano-Suiza 12Y -
Klimov M-105 -
Klimov VK-107

Similar engines:
Daimler-Benz DB 601 -
Rolls-Royce Merlin -
Allison V-1710

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