LCDR Sondes class

The LCDR Sondes class was a class of six steam locomotives of the 4-4-0ST wheel arrangement. They were designed by Thomas Russell Crampton for the East Kent Railway (EKR) to specifications prepared by Joseph Cubitt. An order was placed in March 1857 with R. & W. Hawthorn & Co. for six locomotives at £2,700 each; they were delivered to the EKR between November 1857 and March 1858.[1] The first section of the EKR (between Chatham and Faversham) opened on 25 January 1858; and the EKR became the London, Chatham and Dover Railway (LCDR) in 1859.[2] The locomotives were prone to frequent failure: at one point, before the sixth had been received, the first five were all out of service simultaneously. The LCDR asked Daniel Gooch of the Great Western Railway to report on the condition of the locomotives; he found that there were a number of significant problems with the design.[3] The Sondes class were all laid aside as unfit for use in mid-1863, and during 1865, all six were rebuilt by the LCDR as 2-4-0T, becoming the Second Sondes class.[4]

Sondes class
Type and origin
Power typeSteam
DesignerThomas Russell Crampton
BuilderR. & W. Hawthorn & Co.
Serial number1006–1011
Build date1857-1858
Total produced6
Specifications
Configuration:
​
 • Whyte4-4-0ST
 • UIC2′B n2t
Gauge4 ft 8 1⁄2 in (1,435 mm)
Coupled dia.5 ft 6 in (1.676 m)
CylindersTwo, outside
Cylinder size15 in × 20 in (381 mm × 508 mm)
Career
Operators
DeliveredNovember 1857 – March 1858
DispositionAll rebuilt to Second Sondes class

Like other EKR/LCDR locomotives delivered prior to 1874, the locomotives had no numbers, being distinguished by name.[5]

NameWorks no.BuiltRebuilt
Lake1006November 1857August 1865
Sondes1007December 1857October 1865
Faversham1008February 1858November 1865
Chatham1009February 1858September 1865
Sittingbourne1010March 1858September 1865
Crampton1011March 1858November 1865

Three of the locomotives (Faversham, Chatham and Sittingbourne) were named after places served by the EKR. The other three were named after people involved in the EKR: James Lake and Lord Sondes were directors, whilst T. R. Crampton, besides being the designer of the class, was also the engineer of the EKR.[6]

Notes
  1. Bradley 1979, pp. 19–20, 22.
  2. Dendy Marshall & Kidner 1963, p. 326.
  3. Bradley 1979, p. 20.
  4. Bradley 1979, pp. 20, 22.
  5. Dendy Marshall & Kidner 1963, p. 349.
  6. Bradley 1979, p. 19.
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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.CS1 maint: ref=harv (link)
  • Dendy Marshall, C.F.; Kidner, R.W. (1963) [1937]. History of the Southern Railway (2nd ed.). Shepperton: Ian Allan. ISBN 0-7110-0059-X.CS1 maint: ref=harv (link)
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