General Belgrano class E24
Argentina 1955 2 produced
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.
Technical data
General
- Built
- 1955
- Manufacturers
- Esslingen
- Wheel arrangement
- 0-12-2RT
- Gauge
- 1,000 mm (Meter gauge)
Dimensions and weights
- Length
- 13.23 m
- Wheelbase
- 7.87 m
- Service mass
- 110 t
- Adhesion mass
- 99 t
- Rigid wheelbase
- 4.55 m
- Axle load
- 17.3 t
- Water capacity
- 10,200 l
- Fuel capacity
- 3,700 l (oil)
Boiler
- Grate area
- 3.5 m²
- Evaporative heating surface
- 212 m²
- Superheater surface
- 86.5 m²
- Total heating surface
- 298.5 m²
Power plant
- Driver diameter
- 940 mm
- Boiler pressure
- 14 bar
- Expansion type
- simple expansion
- Cylinders
- four, 680 x 495 mm
Power
- Power source
- steam
- Estimated power
- 1,100 kW (1,496 PS)
- Starting effort
- 289.8 kN
Calculated values
- Factor of adhesion
- 1 : 3.35
- Optimal speed
- 11 km/h
- Power-to-weight ratio
- 10.0 kW/t
- Adhesive weight/Total
- 1 : 1.11
- Tractive force/Heating surface
- 1 : 20.27
- Grate area/Heating surface
- 1 : 85.29
- Total/Superheater
- 1 : 2.45
