SER Q class

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SER Q class
Type and origin
Power type Steam
Designer James Stirling
Build date 1881–1897
Total produced 118
Specifications
Configuration 0-4-4T
UIC class B2′ n2
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia. 5 ft 6 in (1.676 m)
Trailing dia. 3 ft 0 in (0.914 m)
Wheelbase 22 ft (7 m)
Axle load 16 long tons (16.3 t)
Loco weight 48.65 long tons (49.4 t)
Fuel type Coal
Fuel capacity 0.15 long tons (0.2 t)
Water cap 1,050 imp gal (4,800 L; 1,260 US gal)
Firebox:
 • Firegrate area
16 sq ft (1 m2)
Boiler pressure 140 lbf/in2 (0.97 MPa)
Heating surface:
 • Tubes and flues
922.5 sq ft (85.70 m2)
Cylinders Two, inside
Cylinder size 18 in × 26 in (457 mm × 660 mm)
Valve gear Stephenson
Performance figures
Tractive effort 15,189 lbf (67.56 kN)
Career
Operators
Class Q
Number in class 1 January 1923: 32
Withdrawn 1907–1929
Disposition All scrapped

The SER Q class was a class of 0-4-4T steam locomotives of the South Eastern Railway. The class was designed by James Stirling and introduced in 1881.[1] These locomotives should not be confused with the later SR Q class 0-6-0.

Rebuilding[edit]

The locomotives passed to the South Eastern and Chatham Railway in 1899 and 55 were rebuilt by Harry Wainwright to Class Q1 between 1903 and 1919.

Numbering[edit]

Thirty-two unrebuilt locomotives survived into Southern Railway ownership on 1 January 1923 with random numbers between 6 and 424. All had been withdrawn by 1929.

References[edit]

Bibliography[edit]

  • Ahrons, E.L. (1926). The British Steam Railway Locomotive. Ian Allan. 
  • Casserley, H.C.; Johnston, S.W. (1974). Locomotives at the Grouping 1, Southern Railway. Ian Allan. ISBN 0-7110-0552-4.