What widely used on aircraft in the 1930s through 1950s was the result of the development of the M-25?
Shvetsov ASh-82 The Shvetsov ASh-82 (M-82) is a Soviet 14-cylinder, two-row, air-cooled radial aircraft engine developed from the Shvetsov M-62. The M-62 was the result of development of the M-25, which was a licensed version of the Wright R-1820 Cyclone.
Jagdgeschwader 25 Jagdgeschwader" 25 (JG 25), sometimes erroneously referred to as Jagdgruppe" 25, was a special high-altitude fighter unit that specialized in intercepting the Royal Air Force's (RAF) de Havilland Mosquito light bombers during World War II.