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SECR B1 class
B1 at Tonbridge Locomotive Depot 18 May 1946
Type and origin
Power type
Steam
Designer
James Stirling
Builder
Neilson, Reid and Company (20)
Ashford Works (9)
Build date
1898–1899 (as B class)
Total produced
29
Rebuild date
1910–1926 (as B1 class)
Number rebuilt
27
Specifications
Configuration:
• Whyte
4-4-0
• UIC
2′B
Gauge
4 ft 8+1⁄2 in (1,435 mm)
Driver dia.
7 ft 0 in (2.134 m)
Loco 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)
Career
Operators
South Eastern and Chatham Railway
→ Southern Railway
→ Southern Region of British Railways
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Withdrawn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.
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Single 1002 survives. It has been attached to Single No. 1 since 2014. T26 Class 490 was built for the Great Eastern Railway. The London and North Eastern...
from which I3s were banned in favour of lighter I1X class locomotives to Tunbridge Wells and SECR B1s, F1s and D1s on the Lewes line. The restrictions...
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