LCDR Second Sondes class

The LCDR Second Sondes class was a class of six 2-4-0T steam locomotives. They were designed by William Martley for the London, Chatham and Dover Railway (LCDR), and built at the LCDR's Longhedge works during 1865, using components from the Sondes class 4-4-0ST locomotives, including the boilers.[1]

Second Sondes class
Type and origin
Power typeSteam
DesignerWilliam Martley
RebuilderLonghedge works
Rebuild date1865
Number rebuilt6
Specifications
Configuration:
​
 • Whyte2-4-0T
Gauge4 ft 8+1⁄2 in (1,435 mm)
Leading dia.3 ft 6 in (1.07 m)
Coupled dia.5 ft 6 in (1.68 m)
Wheelbase:
 • Engine		15 ft 0 in (4.57 m)
Frame typeDouble
Loco weight31.8 long tons (32.3 t)
Fuel capacity1+1⁄4 long tons (1.3 t)
Water cap.715 imp gal (3,250 L; 859 US gal)
Firebox:
 • Firegrate area		16+1⁄2 sq ft (1.53 m2)
Boiler:
​
 • Diameter4 ft 1 in (1.24 m)
 • Tube plates10 ft 1 in (3.07 m)
 • Small tubes152 x 2 in (51 mm)
Boiler pressure120 psi (830 kPa)
Heating surface895 sq ft (83.1 m2)
 • Tubes820 sq ft (76 m2)
 • Firebox75 sq ft (7.0 m2)
Cylinders2, inside
Cylinder size15 in × 24 in (380 mm × 610 mm)
Career
Operators
ClassF
Numbers
  • LCDR: 59–64
  • SECR: 518–523
Withdrawn1909
DispositionAll scrapped

In November 1875, William Kirtley (who had replaced Martley following the latter's death in 1874) allotted the class letter F.[2] During 1876–78, the locomotives were rebuilt with new boilers and cylinders; at the same time they were given numbers, the names being removed.[3] They passed to the South Eastern and Chatham Railway (SECR) at the start of 1899, and their numbers were increased by 459 to avoid duplication with former South Eastern Railway locomotives.[3] New boilers were again provided in 1905–07, but all six locomotives were withdrawn in 1909.[4]

NameBuiltLCDR NumberSECR NumberReboileredWithdrawn
LakeAugust 186562521December 1876, July 1905August 1909
ChathamSeptember 186564523August 1877, January 1906September 1909
SittingbourneSeptember 186560519November 1876, December 1907July 1909
SondesOctober 186559518January 1878, January 1907July 1909
FavershamNovember 186563522September 1877, June 1907September 1909
CramptonNovember 186561520December 1876, August 1907August 1909

The names were all retained from the Sondes class.[5]

Notes
  1. Bradley 1979, pp. 20, 22.
  2. Bradley 1979, pp. 8, 14.
  3. Bradley 1979, pp. 21, 22.
  4. Bradley 1979, p. 22.
  5. Bradley 1979, p. 19.

References
  • Bradley, D.L. (March 1979) [1960]. The Locomotive History of the London, Chatham & Dover Railway (2nd ed.). London: RCTS. ISBN 0-901115-47-9. OCLC 59838998.
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