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.
Focke-Wulf Fw 200 Condor The Focke-Wulf Fw 200 "Condor", also known as "Kurier" to the Allies, was a German all-metal four-engined monoplane originally developed by Focke-Wulf as a long-range airliner. A Japanese request for a long-range maritime patrol aircraft led to military versions that saw service with the "Luftwaffe" as long-range reconnaissance and anti-shipping/maritime patrol bomber aircraft. The Luftwaffe also made extensive use of the Fw 200 as a transport.