The reference for locomotives and railcars
Metropolitan class H
London & North Eastern class H2
Great Britain | 1920 | 8 produced
flickr/Historical Railway Images

The Metropolitan Railway's class H was a tank locomotive for fast passenger services between the suburbs of London and the town of Aylesbury. It was developed as a “double ender” with two driving axles because the 0-6-4T class G had a rigid wheelbase that was too long for the tight curves in the suburbs.

In 1920 and 1921 Kerr, Stuart & Co. delivered a total of eight. They could easily negotiate curves up to 300 feet (91 m) and were designed for trains of 250 tons. When they were taken over by the LNER in 1923 they became Class H2. In 1941 they were relocated to Nottingham, but between 1942 and 1947 they were all scrapped.

ManufacturerKerr, Stuart & Co.
Axle config4-4-4T (Reading) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length41 ft 10 1/2 in
Wheelbase33 ft 6 in
Fixed wheelbase7 ft 9 in
Service weight172,480 lbs
Adhesive weight87,360 lbs
Axle load43,680 lbs
Water capacity2,402 us gal
Fuel capacity11,200 lbs (coal)
Power sourcesteam
Estimated power925 hp (690 kW)
Optimal speed32 mph
Starting effort18,500 lbf
Power Plant
Driver diameter69 in
Boiler pressure160 psi
Expansion typesimple
Cylinderstwo, 19 x 26 in
Grate area21.4 sq ft
Firebox area132 sq ft
Tube heating area1,025 sq ft
Evaporative heating area1,157 sq ft
Superheater area268 sq ft
Total heating area1,425 sq ft
Calculated Values
steam locomotive
tank locomotive
Charles Jones
last changed: 01/2024

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