The primary powerplant of Soviet fighter aircraft during World War II.
In the first half of the 1930s, the USSR purchased a license for French Hispano-Suiza engines. Using the technical solutions applied in them, Vladimir Klimov developed an entire series of powerplants at his design bureau. Among them was also the VK-105PF2.
The Yakovlev design bureau, which developed fighters using this powerplant, participated in its creation. However, the increase in power came at the cost of a shortened engine service life. Despite this, the VK-105 in various versions was one of the most widely produced aviation engines in the Soviet Union.
The VK-105 engine is equipped with 6 carburettors — one for every 2 cylinders — and a two-speed supercharger. A cannon firing through the propeller hub could be mounted between the cylinder blocks. It was used, among others, in fighters by A. Yakovlev and S. Lavochkin, as well as in the V. Petlyakov Pe-2 dive bomber.
| Configuration | 12-cylinder V |
| Cooling | liquid |
| Compression ratio | 7.1 |
| Displacement | 35 l |
| Propeller reduction | 0.59 |
| Weight | 614 kg |
| Maximum power | 1300 hp at 2700 rpm |
| Rated power | 1175 hp |
