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

In January 2010, the production of a new turbocharged variant of the 1.4 engine started.

Several variants of the engine have been developed, some of which power unmanned aerial target drones.

The original variant of the engine.

R-29B-200 Simplified variant of the engine intended for the MiG-27.

It is powered by a variant of the same engine as the Sentry.

This is the original variant of the engine.

As of 2010, there are four major variants of the engine, each with multiple sub-variants.

The 2009 variant of the engine is still loosely based on the same design that was introduced in the 1959 Bentley S2.

It commonly manifested itself in the 1130 variant of the engine, as a difficulty to crank the engine when hot.