South African Class MC1 2-6-6-0

The South African Railways Class MC1 2-6-6-0 was a class of fifteen Mallet articulated compound steam locomotives, ordered from the North British Locomotive Company in 1913 as an improved version of the Class MC. They were delivered and placed in service in May 1914 and numbered 1634 to 1648. They duplicated the Class MC in most respects, so that most spare parts were interchangeable, but had cylinders half an inch larger in diameter and a redesigned boiler with a superheater in place of the saturated steam boiler, which raised the tractive effort and made a much better performing locomotive. They were placed on the coal line from Witbank to Germiston, and later some ran on the Natal mainline and the Cape Midland System, while others served as banking engines up the Hex River Railpass between De Doorns and Touws River. All were withdrawn and scrapped during 1937.