Shvetsov ASh-82


The Shvetsov ASh-82, also known as the M-82, is a Soviet 14-cylinder, two-row, air-cooled radial aircraft engine developed from the Shvetsov M-62, which in turn was the result of development of the M-25, a licensed version of the Wright R-1820 Cyclone.

Design and development

Arkadiy Shvetsov re-engineered the Wright Cyclone design, through the OKB-19 design bureau he headed, for Russian aviation engine manufacturing practices and metric dimensions and fasteners, reducing the stroke, dimensions and weight. This allowed the engine to be used in light aircraft, where an American-design Twin Cyclone, of some 930 kg weight in "dry" condition could not be installed.
The engine entered production in 1940 and saw service in a number of Soviet aircraft. It powered the Tupolev Tu-2 and Pe-8 bombers and the inline engine-powered LaGG-3 was adapted for the ASh-82 producing the famous Lavochkin La-5 fighter and its development, Lavochkin La-7, additionally the Lavochkin La-9 with its Lavochkin La-11 escort variant and Ilyushin Il-14 airliner were created around the engine. Over 70,000 ASh-82s were built. They were built in the 1950s to 1960s era under licence, both in Czechoslovakia by the Walter factory in Prague-Jinonice and in the German Democratic Republic by the VEB Industriewerke Karl-Marx-Stadt.

Variants

;ASh-82-111
;ASh-82-112
;ASh-82F
;ASh-82FNV
;ASh-82FN
;ASh-21
;ASh-82T
;ASh-82V
;ASh-2TK and ASh-2K
;Dongan HS-7
;Dongan HS-8

Applications