Shvetsov M-71

The Shvetsov M-71 was a Soviet 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.

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.

A version of the M-71F was developed with two TK-3 turbochargers and flight tested in the DVB-102 high-altitude bomber designed by Vladimir Myasishchev during the summer of 1943.

Evaluations of the M-71 were generally favorable, but no production capacity was available to use for a brand-new engine during the war.