BDZ class 46 2-12-4T number 46.05, built by Cegielski (205/1931), stands in Sofia Podenue shed yard on 4th May 1964. Photo Trevor Rowe
The mountainous nature of much of Bulgaria and the need for larger locomotives resulted in the development of a couple of locomotive types with unusual wheel arrangements after 1930. A class of 20 2-12-4Ts of the type illustrated above were built to handle coal traffic over the steeply graded line between Sofia and Pernik. The other virtually unique wheel arrangement used was 4-10-0, when 17 locomotives of this type were built between 1940 & 1943 as a mixed traffic version of the class 03 4-8-2s.
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