At the beginning of the fifties, the General Belgrano Railway in Argentina still used three 0-8-2 rack locomotives built by Maschinenfabrik Esslingen in Germany in 1905. In 1955, these three were replaced by two locomotives of the new class E24, again built in Esslingen. These again had a combined rack and adhesion drive, but now six driving axles and were oil-fired.
Although the inside cylinders were fairly small, the rack wheels were driven by a 2.44 to 1 ratio what greatly increased tractive power. Sadly, they were too complex for their area of operation and suffered from cracks in frames and cylinders. For these reasons they were quickly replaced by diesels and used as stationary steam generators.