Aircraft engine: Shvetsov ASh-82FN
|Configuration||14-cylinder double radial|
|Displacement||41.2 l (2,502 cu in)|
|Propeller reduction gear ratio||0.69|
|Weight||900 kg (1,984 lb)|
|Maximum power||1,850 hp at 2,500 RPM|
|Cruise power||1,650 hp at 2,400 RPM|
One of the most famous Soviet radial aircraft engines.
A double radial engine with a two-step supercharger, designed by a team led by Arkadiy Shvetsov in 1941. The engine was developed as a result of the experience gained during the Spanish Civil War, which revealed a need for a small high-power air-cooled engine. In 1942 the M‑82 fitted with a floatless carburettor entered production, however it was not satisfactory.
In 1942 a German BMW 801 engine was captured and its fuel injection system was copied and adopted to Shvetsov's construction. In 1943 the production of the ASh‑82FN version began. This turned out to be a highly successful engine, production of its many variants reaching 70,000 examples. It was used on the Tu-2, La‑5FN, La‑7, Pe‑8, Il‑12 aircraft. An improved ASh-82T powered the Il‑14 and a helicopter variant ASh-82V was fitted to the Mi‑4 helicopter.