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Shvetsov M-25
The Shvetsov M-25 was an aircraft radial engine produced in the Soviet Union in the 1930s and 40s, a licensed production variant of the Wright R-1820-F3.
The first M-25s were produced from kits imported from the United States and the main difference between the later M-25 and the R-1820-F3 is the use of metric components. 13,888 M-25s were produced in the USSR at factories in Perm and Kazan. There were a number of subvariants which differed from the original M-25 in having reduction gears, rather than direct drive. Performance was similar to the equivalent Wright engines. The M-25 was later developed into the ASh-62 and was later used as a pattern for the M-70. The M-70 being a twin-row 18 cylinder engine, eventually developed into the ASh-73 which powered the Tupolev Tu-4, a reverse engineered copy of the Boeing B-29.
Specifications (Shvetsov M-25)
Applications
References
- Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens, 175.
- Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Crowood Press Ltd., p.118-119.
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| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Shvetsov M-25". |
