The Shvetsov M-71 was a powerful Soviet 18-cylinder two-row radial engine built in small numbers during World War II. It was derived from the Shvetsov M-25, which was a license-built copy of the American Wright R-1820-F3 Cyclone engine. == Development == The M-71 was developed from the Shvetsov M-70, a failed attempt at a two-row version of the single-row Wright R-1820 Cyclone.
The Shvetsov M-71 was a powerful Soviet 18-cylinder two-row radial engine built in small numbers during World War II. It was derived from the Shvetsov M-25, which was a license-built copy of the American Wright R-1820-F3 Cyclone engine. == Development == The M-71 was developed from the Shvetsov M-70, a failed attempt at a two-row version of the single-row Wright R-1820 Cyclone.
Source: Wikipedia "Shvetsov M-71" · CC BY-SA 4.0
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