Since the line’s opening, until the introduction of the first diesel railcars for passenger service in 1942, all activities are being carried out by steam engines. The steam traction dominates until 1965, when the first diesel engines are delivered and gradually replace steam in the freight services too. During the whole history of the line, a total of 25 steam engines representing three different series served the narrow gauge line between Septemvri and Dobrinishte. Between the end of World War II and the year 1950, three additional locomotives from the 92.00 series “Mallet” are being temporarily used on the Rhodope Narrow Gauge, borrowed from the Yugoslavian railways, but they are returned after the delivery of the 600.76 series for BDZ.
Видео от атракционно пътуване с локомотив 609.76 през октомври 2015 г. Автор: Николай Вичев