The Southern Railway built six Diesel locomotives. Three shunters were completed in 1937. The three mainline locomotives were completed after Nationalisation in 1948 by British Railways.
Shunting locomotives The Southern Railway built three shunters in 1937, numbered 1–3. These became British Rail 15201–15203, and were later classified as British Rail Class D3/12. Twenty-six similar locomotives were built in 1949–1951 after nationalisation. They were numbered 15211–15236, and were later classified as British Rail Class 12.
Mainline locomotives The Southern designed a prototype mainline diesel-electric locomotive. Three were built, although none were finished before nationalisation. They were numbered 10201–10203, and later classified as British Rail Class D16/2.
See also GWR diesel shunters LMS diesel shunters LNER internal combustion locomotives List of British Rail classes
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