São Paulo Railway No. 21 and 22
Brazil 1882 2 produced
The largest tank locomotives on the São Paulo Railway at the time had a 4-8-0T wheel arrangement and were called “Jumbos”. They were supplied by Avonside and were obviously intended for another railway company. So they came to this railway company in 1882 after they had been re-gauged to 5 feet and 3 inches. The first driving axle had no wheel flanges to improve running characteristics in curves.
Technical data
General
- Built
- 1882
- Manufacturers
- Avonside
- Wheel arrangement
- 4-8-0T (Twelve-wheeler)
- Gauge
- 1,600 mm (Irish broad gauge)
Dimensions and weights
- Length
- 9.82 m
- Wheelbase
- 7.37 m
Power plant
- Driver diameter
- 1,257 mm
- Boiler pressure
- 9.7 bar
- Expansion type
- simple expansion
- Cylinders
- two, 470 x 610 mm
Power
- Power source
- steam
- Estimated power
- 447 kW (608 PS)
- Starting effort
- 87.8 kN
Calculated values
- Optimal speed
- 31 km/h
