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 type Steam Designer Harry Wainwright Rebuild date 1903–1919 Number rebuilt 55
Specifications Configuration: ​  • Whyte 0-4-4T  • UIC B2′ n2t Gauge 4 ft 8 ^1⁄2 in (1,435 mm) Driver dia. 5 ft 6 in (1.676 m) Loco weight 49.6 long tons (50.4 t) Fuel type Coal Boiler pressure 150 lbf/in^2 (1.03 MPa) Cylinders Two, Cylinder size 18 in × 26 in (457 mm × 660 mm) Valve gear Stephenson valve gear
Performance figures Tractive effort 16,274 lbf (72.39 kN)
Career Operators South Eastern and Chatham Railway → Southern Railway Class Q1 Number in class 1 January 1923: 46 Withdrawn 1909–1930 Disposition All scrapped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 All had been withdrawn by 1930.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