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General Belgrano class E24
Argentina | 1955 | 2 produced
flickr/Historical Railway Images

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.

General
Built1955
ManufacturerEsslingen
Axle config0-12-2RT 
Gauge3 ft 3 3/8 in (Meter gauge)
Dimensions and Weights
Length43 ft 4 11/16 in
Wheelbase25 ft 10 in
Fixed wheelbase14 ft 11 in
Service weight242,508 lbs
Adhesive weight218,257 lbs
Axle load38,140 lbs
Water capacity2,695 us gal
Fuel capacity977 us gal (oil)
Power
Power sourcesteam
Estimated power1,475 hp (1,100 kW)
Optimal speed7 mph
Starting effort65,141 lbf
Power Plant
Driver diameter37 in
Boiler pressure203 psi
Expansion typesimple
Cylindersfour, adhesion: 26 3/4 x 19 1/2 in
rack: 15 3/4 x 15 3/4 in
Boiler
Grate area37.7 sq ft
Evaporative heating area2,281.9 sq ft
Superheater area931.1 sq ft
Total heating area3,213 sq ft
Calculated Values
steam locomotive
freight
tank locomotive
cog railway
last changed: 04/2024
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