The reference for locomotives and railcars


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British Rail Standard class 2 tank
Great Britain | 1953 | 30 produced
flickr/Historical Railway Images

The smallest tank locomotive of the BR standard program was the class 2 tank with a 2-6-2T wheel arrangement. It was derived from the LMS Ivatt class 2 2-6-2T and intended for mixed traffic. It had a smaller loading gauge than its LMS prototype and had a number of standard fittings. A very similar standard locomotive was the class 2 2-6-0.

Since there were already 130 Ivatt 2-6-2T, BR only ordered 30 of the standard type. The first 20 were built in Crewe and used in former LMS area. The other ten were built in Darlington and used in the Southern region. After they also came to other regions, their service life ended between 1963 and 1966. Since none were preserved, the Bluebell Railway is now rebuilding 2-6-0 No. 78059 into 2-6-2T No. 84030.

ManufacturerCrewe, Darlington
Axle config2-6-2T (Prairie) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length38 ft 9 3/8 in
Wheelbase30 ft 3 in
Fixed wheelbase13 ft 9 in
Service weight148,400 lbs
Adhesive weight92,400 lbs
Axle load31,360 lbs
Water capacity6,720 us gal
Fuel capacity1,621 lbs (coal)
Power sourcesteam
Estimated power850 hp (634 kW)
Optimal speed29 mph
Starting effort18,513 lbf
Power Plant
Driver diameter60 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 16 1/2 x 24 in
Grate area17.5 sq ft
Firebox area101 sq ft
Tube heating area924 sq ft
Evaporative heating area1,025 sq ft
Superheater area124 sq ft
Total heating area1,149 sq ft
Calculated Values
steam locomotive
tank locomotive
Robert Arthur Riddles
last changed: 05/2024

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