London & South Western class C8
Great Britain 1898 10 produced
The ten locomotives of the class C8 built in 1898 were a less successful predecessor of the T9. They were designed by Dugald Drummond and were numbered 290 to 299. Their boiler was similar to the M7 0-4-4T and the class 700 0-6-0. But since the firebox was large enough for these two, it was not large enough for an express locomotive that had to sustain higher speeds. This explains why no others were ordered and the T9 received a larger firebox. These ten locomotives remained in service without being superheated and were only withdrawn between 1933 and 1938.
Technical data
General
- Built
- 1898
- Manufacturers
- Nine Elms
- Wheel arrangement
- 4-4-0 (American)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 16.74 m
- Service mass
- 47.6 t
- Total mass
- 88.4 t
- Rigid wheelbase
- 2.74 m
- Water capacity
- 15,910 l
- Fuel capacity
- 4.1 t (coal)
Boiler
- Grate area
- 1.895 m²
- Firebox surface
- 11.52 m²
- Tube heating surface
- 99.128 m²
- Evaporative heating surface
- 110.648 m²
- Total heating surface
- 110.6 m²
Power plant
- Driver diameter
- 2,007 mm
- Boiler pressure
- 12.1 bar
- Expansion type
- simple expansion
- Cylinders
- two, 470 x 660 mm
Power
- Power source
- steam
- Estimated power
- 522 kW (710 PS)
- Starting effort
- 74.5 kN
Calculated values
- Optimal speed
- 43 km/h
- Power-to-weight ratio
- 11.0 kW/t
- Heating Surface Equivalent
- 168.2 m²
- Cylinder volume/HSE
- 1 : 1,361.41
- Tractive force/Heating surface
- 1 : 14.07
- Grate area/Heating surface
- 1 : 58.39
- Firebox/Tube surface
- 1 : 8.60