Polish Aviation Museum

31-864 Kraków,
al. Jana Pawła II 39
phone: (12) 640 99 60,
(12) 642 40 70
e-mail: info@muzeumlotnictwa.pl

a cultural institution of the Malopolska Region

Małopolska – Kraków Region


Mecenas Muzeum

Kraków Airport

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Aircraft engine: Shvetsov ASh-82FN

Shvetsov ASh-82FN
USSR
radial engine
1943



Configuration14-cylinder double radial
Coolingair-cooled
Displacement41.2 l (2,502 cu in)
Compression ratio7.0
Propeller reduction gear ratio0.69
Weight900 kg (1,984 lb)
Maximum power1,850 hp at 2,500 RPM
Cruise power1,650 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.

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