Indian Railways class XE
The XE was a heavy 2-8-2 broad gauge goods locomotive that was built from 1928 as part of a large standard programme. With an axle load of 22.5 tons, it was heavier than the XD and mainly intended for mineral trains. The drivers measured 5 ft 1½ in (1,562 mm) and the cylinders were 23.5 inches in diameter and 30 inches in stroke. By this time, it was the heaviest non-articulated steam locomotive in India and could haul trains of up to 2,000 tons. In some sources it is also being called “X Eagle”.
By 1930, 44 had been built by Beardmore and 14 by Vulcan Foundry. In 1945, Vulcan Foundry built 35 more which were designated XE/1 due to some improvements. These included modified cylinders and steam chests, roller bearings on the driving axles and a modified design of rear truck. Later the class was fitted with mechanical stokers to help fire the 60 square feet grate. After World War II, Baldwin built a similar design that was called class AWE. Five of the original class XE were preserved, with No. 22541 as the only one that was restored to working order.
Technical data
General
- Built
- 1928-1930, 1945
- Manufacturers
- Beardmore, Vulcan Foundry
- Wheel arrangement
- 2-8-2 (Mikado)
- Gauge
- 1,676 mm (Indian broad gauge)
Dimensions and weights
- Wheelbase
- 11.10 m
- Total wheelbase
- 21.03 m
- Service mass
- 122.4 t
- Adhesion mass
- 91.4 t
- Total mass
- 201.7 t
- Rigid wheelbase
- 5.26 m
- Axle load
- 22.9 t
- Water capacity
- 27,278 l
- Fuel capacity
- 14.2 t (coal)
Boiler
- Grate area
- 5.574 m²
- Firebox surface
- 24.155 m²
- Tube heating surface
- 255.855 m²
- Evaporative heating surface
- 280.01 m²
- Superheater surface
- 70.885 m²
- Total heating surface
- 350.9 m²
Power plant
- Driver diameter
- 1,562 mm
- Boiler pressure
- 14.5 bar
- Expansion type
- simple expansion
- Cylinders
- two, 597 x 762 mm
Power
- Power source
- steam
- Estimated power
- 1,715 kW (2,332 PS)
- Starting effort
- 213.9 kN
Calculated values
- Factor of adhesion
- 1 : 4.19
- Optimal speed
- 48 km/h
- Power-to-weight ratio
- 14.0 kW/t
- Heating Surface Equivalent
- 542.6 m²
- Cylinder volume/HSE
- 1 : 786.02
- Adhesive weight/Total
- 1 : 1.34
- Tractive force/Heating surface
- 1 : 12.73
- Grate area/Heating surface
- 1 : 62.95
- Firebox/Tube surface
- 1 : 10.59
- Total/Superheater
- 1 : 3.95