What kind of steam machinery could Soviet battleships use in the early 1930s?
Short answerThey would probably use licensed or copied foreign machinery, following the Italian and Yarrow-Normand pattern seen in the Kirov class.
NotesKirov's machinery provides the model for the first Soviet treaty battleships. Italian equipment and licensed Yarrow-Normand water-tube boiler designs could supply the initial plants. Soviet yards would then build copies or licensed variants for later ships.