The Shvetsov M-11 is a five-cylinder air-cooled radial aircraft engine produced in the Soviet Union between 1923 and 1952.

[1] The Shvetsov M-11 was designed under a 1923 competition in the Soviet Union for a new engine to power trainer aircraft.

It is a single-row five-cylinder air-cooled radial piston engine with aluminum cylinder heads.

Like the American Kinner B-5 5-cylinder radial of similar size, the M-11 had individual camshafts for each cylinder, operating the pushrods, rather than a single central cam ring.

It was also used for the up-engined GAZ-98K aerosani winter-used sled in a pusher configuration, and as the standard powerplant for the similar NKL-26 propeller-driven sledges during the World War II years.