FC del Sud de Buenos Aires 2-8-0 Locomotives in Argentina

Class 11B (Locobase 4302)

Data from Carlos Alberto Fern+ndez Priotti in Bryan Attewell ([] Steam Locomotive simulator program (December 2000).

Virtually identical to the Class 8 Prairie tank series imported by this railroad in the same years. Like many British-built locomotives in Argentina, these were fitted with Belpaire boilers.

Apparently this Consolidation was just the right size (or price, or both) for the traffic, because Beyer Peacock, North British, and Vulcan in Britain and Henschel in Germany added to the stud over the next 18 years.

The Spanish-language website members.es.tripod.de/rielsud/locoayer.html (Dec 2001) notes that the first 60 supplemented in 1931 by an additional order for 40 to handle the rapid increase in traffic over the Sud's mainline. It's a little surprising to note that these low-drivered Consolidations established a monopoly on the passenger trains between Buenos Aires-La Plata and Bahia Blanca-Toay. Sometime later the entire class was converted to oil-burning.

Class Class 11D (Locobase 4303)

Data provided by Carlos Alberto Fern+ndez Priotti in Bryan Attewell ([] Steam Locomotive simulator program (Decemberl 2000).

Class 11 was a goods-engine catchall it appears, as this three-cylinder Consolidation class shares the main designation with a 2-8-0 design from fourteen years earlier and a twelve-wheeler delivered in the same years. In fact, this 2-8-0 seems a scaled-down version of the Mastodon, with a smaller, lower-pressure boiler driving the same piston volume and driver diameter.

Class unknown (Locobase 6370)

Data from Vulcan Foundry catalogue, ca. 1920, which doesn't say how many of these compounds were built or when.

They do resemble the 11Bs (Locobase 4302) enough for Locobase to suspect they were delivered at around the same time. See also Locobase 11230 for very similar locomotives supplied by Robert Stephenson to the Argentine Great Western in 1905-1906.