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London & South Western Clyde class

No. 99 “Phlegon”

To haul the most important express trains, the LSWR had three four-coupled locomotives built at Nine Elms in 1859, which were the first four-coupled standard-gauge locomotives in Great Britain with a driver diameter o...

London & South Western Clyde classRemove
Variant Standard
Built 1859, 1864, 1868
Manufacturers Nine Elms
Wheel arrangement 1B
Gauge
Length 13164 mm
Service mass 36121 kg
Top speed
Power
Engine

General

Property London & South Western Clyde class
Standard
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Built 1859, 1864, 1868
Manufacturers Nine Elms
Wheel arrangement 2-4-0 (Porter)

Dimensions and weights

Property London & South Western Clyde class
Standard
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Length 13.16 m
Wheelbase 4.33 m
Service mass 36.1 t
Total mass 57.3 t
Rigid wheelbase 4.33 m

Boiler

Property London & South Western Clyde class
Standard
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Grate area 1.654 m²
Firebox surface 9.105 m²
Tube heating surface 93.275 m²
Evaporative heating surface 102.379 m²
Total heating surface 102.4 m²

Power plant

Property London & South Western Clyde class
Standard
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Driver diameter 2,134 mm
Boiler pressure 9 bar
Cylinders two, 432 x 559 mm

Power

Property London & South Western Clyde class
Standard
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Estimated power 224 kW (305 PS)

Calculated values

Property London & South Western Clyde class
Standard
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Optimal speed 37 km/h
Power-to-weight ratio 6.2 kW/t
Heating Surface Equivalent 147.9 m²
Cylinder volume/HSE 1 : 1,106.52
Grate area/Heating surface 1 : 61.90
Firebox/Tube surface 1 : 10.24
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