LCDR M3 class

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LCDR M3 class
Type and origin
Power typeSteam
DesignerWilliam Kirtley
Serial numberVF 1317–1322
Build date1891–1901
Total produced26
 • Whyte4-4-0
 • UIC2′B
Gauge4 ft 8 12 in (1,435 mm)
Driver dia.6 ft 6 in (1.981 m)
Loco weight76.1 long tons (77.3 t)
Fuel typeCoal
Water cap2,600 imperial gallons (11,819.8 l; 3,122.5 US gal)
Boiler pressure150 psi (1.03 MPa)
Cylinder size18 in × 26 in (457 mm × 660 mm)
Valve gearStephenson
Performance figures
Tractive effort13,770 lbf (61.3 kN)
Number in class1 January 1923: 26
DispositionAll scrapped

The LCDR M3 class was a class of 4-4-0 steam locomotives of the London, Chatham and Dover Railway. The class was designed by William Kirtley and introduced in 1891.[1]


The class were an enlargement of Kirtley's earlier M1 and M2 classes intended for the London-Dover boat trains. They proved to be successful for these tasks for more than a decade. The locomotives passed to the South Eastern and Chatham Railway in 1899 after which they were superseded on the heaviest trains by the SECR D class between 1903 and 1905[2] and transferred to secondary duties. The class was nevertheless considered to be sufficiently useful to be worth re-boilering between 1909 and 1917.

The entire class survived into Southern Railway ownership in 1923, but the appearance of the King Arthur class on the line after 1925 meant that they had all been withdrawn and scapped by 1928.


  1. ^ Bradley 1979, p. 112.
  2. ^ Bradley 1979, p. 113.
  • Bradley, D.L. (1979). The Locomotive History of the London Chatham and Dover Railway. Railway Correspondence and Travel Society. ISBN 0901115479.