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South Eastern & Chatham class H
Great Britain | 1904 | 66 produced
No. 263 in April 2018 at Sheffield Park railway station
No. 263 in April 2018 at Sheffield Park railway station
PeterSkuce

When the South Eastern & Chatham needed new suburban tank locomotives for the south of London, Harry Wainwright used the existing 0-4-4T locomotives of the SECR's constituents as an inspiration. These were the SER's class Q and the LCDR's classes R and R1. To be specific, he used the R1 as basis for the development of the new class H.

Between 1904 and 1909, 64 were built by Ashford Works. After it was realized that actually two more had been ordered and only their parts manufactured, these two were completed in 1915. Most were used on ex-SER lines and only the 13 which were used on ex-LCDR lines had an additional Westinghouse brake. The boiler designed for the class H was later also used for rebuilding other classes.

All went to the Southern Railway and all but two were taken over by British Railways in 1948. In the following years, many of them were equipped for push-pull service and used on rural branch lines. Between 1952 and 1964, 64 were withdrawn. 31263, the last one to be withdrawn, was preserved and is owned by the Bluebell Railway since 2008, now in SECR livery and carrying the number 263.

General
Built1904-1909, 1915
ManufacturerAshford
Axle config0-4-4T (Forney) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length32 ft 10 3/4 in
Service weight121,856 lbs
Adhesive weight75,264 lbs
Axle load37,632 lbs
Water capacity1,621 us gal
Fuel capacity3,360 lbs (coal)
Power
Power sourcesteam
Estimated power600 hp (447 kW)
Optimal speed22 mph
Starting effort17,359 lbf
Power Plant
Driver diameter66 in
Boiler pressure160 psi
Expansion typesimple
Cylinderstwo, 18 x 26 in
Boiler
Grate area16.7 sq ft
Firebox area102.3 sq ft
Tube heating area1,002.8 sq ft
Evaporative heating area1,105 sq ft
Total heating area1,105 sq ft
Calculated Values
steam locomotive
passenger
tank locomotive
Harry Smith Wainwright
last changed: 05/2024
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