SECR Q1 class

The SECR Q1 class was a class of 0-4-4T steam locomotives of the South Eastern and Chatham Railway. The class was rebuilt from older Stirling Q class locomotives by Harry Wainwright between 1903 and 1919.[1] These locomotives should not be confused with the later SR Q1 class 0-6-0.

SECR Q1 class
Type and origin
Power typeSteam
DesignerHarry Wainwright
Rebuild date1903–1919
Number rebuilt55
Specifications
Configuration:
​
 • Whyte0-4-4T
 • UICB2′ n2t
Gauge4 ft 8 1⁄2 in (1,435 mm)
Driver dia.5 ft 6 in (1.676 m)
Loco weight49.6 long tons (50.4 t)
Fuel typeCoal
Boiler pressure150 lbf/in2 (1.03 MPa)
CylindersTwo,
Cylinder size18 in × 26 in (457 mm × 660 mm)
Valve gearStephenson valve gear
Performance figures
Tractive effort16,274 lbf (72.39 kN)
Career
Operators
ClassQ1
Number in class1 January 1923: 46
Withdrawn1909–1930
DispositionAll scrapped

Numbering

Fifty-five locomotives were rebuilt and 46 survived into Southern Railway ownership on 1 January 1923 with random numbers between 12 and 423. All had been withdrawn by 1930.

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References
  1. Casserley, H.C. and Johnston, S.W., Locomotives at the Grouping 1, Southern Railway, page 42, Ian Allan, 1974, ISBN 0-7110-0552-4
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