The reference for locomotives and railcars
London, Midland & Scottish Fairburn 4P 2-6-4T
Great Britain | 1945 | 277 produced
British Railways No. 42183 in May 1962
British Railways No. 42183 in May 1962
Ben Brooksbank / Special Cup Final local shuttle train from Euston arriving at Wembley Central

In his short career as Chief Mechanical Engineer at the LMS, Charles Fairburn designed only one steam locomotive. This was a direct development of Stanier's 2-6-4T, having a shorter rigid wheelbase to be able to negotiate tighter curves. This also led to a weight that was 3 tons 8 cwt lighter.

236 were built for the LMS and BR at Derby between 1945 and 1950. In 1950 and 1951, 41 more were built at Brighton for the Southern Region. They also formed the basis for the BR Standard class 4 tank. Withdrawals took place between 1961 and 1967 and two are surviving at the Lakeside and Haverthwaite Railway. As of 2024, 42073 is operational and 42085 is being overhauled.

ManufacturerDerby, Brighton
Axle config2-6-4T (Adriatic) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length45 ft 9 5/8 in
Wheelbase37 ft 1 in
Fixed wheelbase15 ft 4 in
Service weight190,960 lbs
Adhesive weight118,720 lbs
Axle load40,208 lbs
Water capacity2,402 us gal
Fuel capacity7,840 lbs (coal)
Power sourcesteam
Estimated power1,300 hp (969 kW)
Optimal speed34 mph
Starting effort24,671 lbf
Power Plant
Driver diameter69 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 19 5/8 x 26 in
Grate area26.7 sq ft
Firebox area143 sq ft
Tube heating area1,223 sq ft
Evaporative heating area1,366 sq ft
Superheater area230 sq ft
Total heating area1,596 sq ft
Calculated Values
steam locomotive
tank locomotive
Charles Edward Fairburn
last changed: 05/2024

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