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Great Western Railway class 2800

Great Britain 1903 84 produced
No. 2857 in March 2012 at Bridgnorth Hugh Llewelyn CC BY-SA 2.0

In 1903, Churchward built the first 2-8-0 locomotive in Britain. Designed for heavy freight service, it was numbered 97 and still had a saturated boiler. In 1906, it set a British record for the heaviest train with 2,012 tons and 107 cars. Series production had started at Swindon in 1905. While the boiler of the prototype was only tapered in front of the firebox, the boiler barrel of the production variant was tapered over the full length. This boiler was virtually identical with that of the Saint class. From 1909, all new locomotives had a superheater and also the existing ones were retrofitted. They used one of two variants of superheaters with either four or six elements, with a surface of 191.8 or 253.38 square feet. 

By 1919, 84 had been built. Although they were built for general freight service, they were mainly used for coal trains from South Wales to the big cities in the GWR area. From 1938, Collett built the class 2884 that was largely identical to the 2800. Between 1945 and 1947, twelve were converted to burn oil for testing. The new numbers were in the 4800 range, so the previous class 4800 of 0-4-2T tank locomotives had to be renumbered to 1400. They were converted back to coal in 1948 since oil turned out to be too expensive as a fuel for locomotives. The class was withdrawn between 1958 and 1965 and six were preserved. Today, only 2807 is in running condition.

Technical data

General

Property prototype production
Built 1903 1905-1919
Manufacturers Swindon
Wheel arrangement 2-8-0 (Consolidation)
Gauge 1,435 mm (Standard gauge)

Dimensions and weights

Property prototype production
Wheelbase 8.31 m
Service mass 69.4 t 76.7 t
Adhesion mass 62.5 t 68.6 t
Total mass 113.2 t 117.4 t
Rigid wheelbase 5.13 m 4.50 m
Axle load 18.3 t 17.5 t
Water capacity 18,185 l 15,910 l
Length 19.26 m
Total wheelbase 17.93 m

Boiler

Property prototype production
Grate area 2.529 m² 2.515 m²
Firebox surface 14.343 m² 14.38 m²
Tube heating surface 184.748 m² 156.69 m²
Evaporative heating surface 199.091 m² 171.07 m²
Total heating surface 199.1 m² 194.6 m²
Superheater surface 23.54 m²

Power plant

Property prototype production
Driver diameter 1,410 mm
Boiler pressure 13.8 bar 15.5 bar
Expansion type simple expansion
Cylinders two, 457 x 762 mm two, 470 x 762 mm

Power

Property prototype production
Power source steam
Estimated power 783 kW (1,065 PS) 1,044 kW (1,419 PS)
Starting effort 132.4 kN 157.4 kN

Calculated values

Property prototype production
Factor of adhesion 1 : 4.63 1 : 4.27
Optimal speed 35 km/h 40 km/h
Power-to-weight ratio 11.3 kW/t 13.6 kW/t
Heating Surface Equivalent 270.8 m² 290.1 m²
Cylinder volume/HSE 1 : 923.91 1 : 911.20
Adhesive weight/Total 1 : 1.11 1 : 1.12
Tractive force/Heating surface 1 : 13.89 1 : 16.89
Grate area/Heating surface 1 : 78.72 1 : 77.38
Firebox/Tube surface 1 : 12.88 1 : 10.90
Total/Superheater 1 : 7.27

Topics

  • steam locomotive
  • freight
  • George Jackson Churchward
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Last changed: 01/2026

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