In 1951, North British built six 4-8-2 for the Benguela Railway which were intended for express mail trains along the Atlantic coast and in the inland between Silva Porto and Luau. In most respects they were based on the South African class 19D and were specified for hauling 500-ton trains on 1.25 percent inclines, while being suited for curve radii of 300 feet. The Benguela usually used eucalyptus wood as fuel, with bars on the tender to increase the capacity. When coal was available, it was used as fuel instead. A Kylchap blast pipe was used to increase power and decrease consumption. Their careers ended in the seventies with the civil war.