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The reference for locomotives and railcars

London & South Western class C8

Great Britain 1898 10 produced
Locomotive Magazine, August 1898

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 These ten locomotives remained in service without being superheated and were only withdrawn between 1933 and 1938.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
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