DWWR 55

Dublin, Wicklow and Wexford Railway (DW&WR) 55 to 58 were 4-4-0 locomotives built from 1895 at Vulcan Foundry for express passenger duties on the Dublin—Wexford mainline. They were to remain the DW&WR's and subsequent Dublin and South Eastern Railway's leading express passenger locomotive until the arrival of Nos. 67 and 68 some ten years later.

DW&WR 55
Type and origin
Power typeSteam
DesignerGrierson
BuilderVulcan Foundry
Serial number1448/49, 1455/56
Build date1895–1896
Total produced4
RebuilderGrand Canal Street
Rebuild date1906–1923
Number rebuilt4
Specifications
Configuration:
​
 • Whyte4-4-0
Gauge5 ft 3 in (1,600 mm)
Leading dia.3 ft 3 in (990 mm)
Driver dia.6 ft 1 in (1,850 mm)
Length34 ft (10,000 mm) (est.)
Axle load15 long tons (15 t)
Loco weight43.75 long tons (44.45 t)
Water cap2,600 imp gal (12,000 l; 3,100 US gal)
Boiler pressure160 lbf/in2 (1.10 MPa)
CylindersTwo
Cylinder size18 in × 26 in (457 mm × 660 mm)
Performance figures
Tractive effort15,700 lbf (69.84 kN)
Career
Operators
ClassD9 (Inchicore)
Power classN/M
Numbers
  • DWWR/DSER: 55–58
  • GSR: 450–453
LocaleIreland
Withdrawn1940
Details are for No. 56 after 1911 rebuild[1]

History

These 4-4-0 locomotives built from 1895 at Vulcan Foundry and named Rathdown, Rathmines, Rathnew and Rathdrum.[1] In their initial form they were poor steamers, the suggestion being the locomotive superintendent Grierson had specified larger cylinders on a previous design for an English railway without balancing this with an increased boiler. His successor Cronin rebuilt the locomotives with Belpaire boilers resulting in improved performance. On amalgamation to Great Southern Railways in 1925 they became numbered 450 to 453 and allocated to class 450/D8.[Note 1] They were withdrawn between 1939 and 1940.[1]

Operations

These engines took over the express passenger trains from the smaller 2-4-0 type on the DW&WR's Dublin—Wexford mainline route.[Note 2][2]

Notes and references

Notes
  1. No. 453 had a different boiler and was sometimes referred as Class 453/D9. It was the only survivor after 1934.
  2. The Dublin—Wexford was the DW&WR's only mainline route. It did have an extension to Waterford but the rival GS&WR's route their from Dublin was far more direct.

References
  1. Clements, Jeremy; McMahon, Michael (2008). Locomotives of the GSR. Colourpoint Books. pp. 15, 129–132, 145. ISBN 9781906578268.
  2. Ahrons, E. L. (1954). L. L. Asher (ed.). Locomotive and train working in the latter part of the nineteenth century". six. W Heffer & Sons Ltd. p. 48.
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