SECR B1 class

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SECR B1 class
Tonbridge Locomotive Depot geograph-2651283-by-Ben-Brooksbank.jpg
B1 at Tonbridge Locomotive Depot 18 May 1946
Type and origin
Power type Steam
Designer James Stirling
(rebuilt by Wainwright)
Build date built 1898–1899 (as B class)
Total produced 29
Rebuild date 1910–1926 (as B1 class)
Number rebuilt 27
Configuration 4-4-0
UIC classification 2′B
Gauge 4 ft 8 12 in (1,435 mm)
Driver diameter 7 ft 0 in (2.134 m)
Locomotive weight 45 long tons 2 cwt (101,000 lb or 45.8 t)
Fuel type Coal
Boiler pressure 170 lbf/in2 (1.17 MPa)
Cylinders Two, inside
Cylinder size 18 in × 26 in (457 mm × 660 mm)
Performance figures
Tractive effort 14,490 lbf (64.45 kN)
Class SECR/SR: B1
Withdrawn 1930–1951
Disposition All scrapped

The SECR B1 class was a class of 4-4-0 steam tender locomotive for express passenger service on the South Eastern and Chatham Railway. These engines were originally designed by James Stirling for the South Eastern Railway (SER) in 1898 and designated B class. The SER was merged into the SECR in 1899 and, between 1910 and 1927 the B class engines were rebuilt with new boilers by Harry Wainwright to become B1 class.


Twenty B Class engines were built by Neilson, Reid and Company and numbered 440-459. A further 9 were built at the South Eastern Railway's Ashford railway works and given a jumble of numbers: 217, 13, 21, 101, 34, 17, 132, 186, 189. They kept these numbers under the SECR. When the Southern Railway took over in 1923 they initially gave the numbers an "A" prefix and later added 1000 to them. For example, 440 became A440 and then 1440 and 13 became A13 and then 1013. A few passed into British Railways ownership in 1948 and had 30000 added to their numbers but it is believed that only 31446 actually carried its number. All had been withdrawn by the end of 1951 and none remain.

Accidents and incidents[edit]

  • On 19 May 1938, locomotive No. 1454 was derailed at Blackfriars station, London, causing delays for several hours.[1]


  1. ^ Earnshaw, Alan (1989). Trains in Trouble: Vol. 5. Penryn: Atlantic Books. p. 27. ISBN 0-906899-35-4. 
  • Ian Allan ABC of British Railways Locomotives, 1949 edition, part 2, pp 18-20

External links[edit]