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 All had been withdrawn by 1930.

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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