Some unknown engines have been provided to us to include in this work. They belong to this brand and it seems that 5 models were made from 40 to 130 CV.

"A Polyakov boxer"

"Polyakov with 5 fixed radial cylinders"

-The 5-cylinder radial engine was the V-760 model of 25 CV.

“V-760 details”

-This engine was installed on the MAK-15MP motorglider.

-Attention: Polyakov is the correct name.

From Appendix 12: New photograph of the engine that appears in another part of this work with the name of Polyatov.

"Polyakov's two-cylinder boxer"

-It is maintained that this manufacturer had a range of engines between 40 and 130 CV.