Dublin, Wicklow & Wexford 4-4-0 Locomotives in Ireland

Class Details by Steve Llanso of Sweat House Media

Class 55 (Locobase 10082)

Data from "Four-Coupled Bogie Express Engine for the Dublin, Wicklow & Wexford Railway.," The Locomotive & Railway Carriage & Wagon Review, Vol III (January 1898), p. 9. Works numbers were 1448-1449 (delivered in September-October 1895) and 1455-1456 (February 1896).

Locobase likes the flow of this railway's name when incorporated in 1846: Waterford, Wexford, Wicklow & Dublin Railway Company. The article giving the specifications says little about the design or performance of these "powerful bogie express locomotives" except to note that they are "fine examples" of VFL work.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10082
RailroadDublin, Wicklow & Wexford (DSE)
Number in Class4
Road Numbers55-58
Number Built4
BuilderVulcan Foundry
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.25 / 2.51
Engine Wheelbase (ft / m)20.75 / 6.32
Ratio of driving wheelbase to overall engine wheelbase 0.40
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)90,720 / 41,150
Tender Loaded Weight (lbs / kg)60,480 / 27,433
Total Engine and Tender Weight (lbs / kg)151,200 / 68,583
Tender Water Capacity (gals / ML)2400 / 9.09
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)72 / 1829
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)18" x 26" / 457x660
Tractive Effort (lbs / kg)14,918 / 6766.70
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)91.50 / 8.50
Grate Area (sq ft / m2)19.68 / 1.83
Evaporative Heating Surface (sq ft / m2)1027 / 95.45
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1027 / 95.45
Evaporative Heating Surface/Cylinder Volume134.11
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2952
Same as above plus superheater percentage2952
Same as above but substitute firebox area for grate area13,725
Power L13489
Power MT

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