What widely used on aircraft in the 1930s through 1950s was the result of the development of the M-25?
Wright R-1820 Cyclone The Wright R-1820 Cyclone 9 was an American radial engine developed by Curtiss-Wright, widely used on aircraft in the 1930s through 1950s. It was produced under license in Spain as the Hispano-Suiza 9V or Hispano-Wright 9V, and in the Soviet Union as the Shvetsov M-25.
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.