Between 1965 and 1972, 60 slightly heavier variants of the Sv12 were built.

Three- and seven-cylinder variants of the same engine were built, although little is known about them.

A larger variant was proposed in 1953 but not built.

One variant, the F.302, was specially built as a single-engine machine to make an attempt at a number of world records.

Production began in 1964 and almost 600 variants were built until 1972.

A four-seat variant the My-104 was proposed but no further aircraft have been built.

A variant has been built with an all-metal wing construction.

Several other variants are also built with more penetration power.

Not long after construction work had begun on 61 001, its variant, 61 002, was planned and built at the start of 1939.

Like the Chiltern units, both 2-car and 3-car variants were built.