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


Class Details by Steve Llanso of Sweat House Media

Class Rathmore (Locobase 10553)

Data from "New Locomotives, Dublin, Wicklow & Wexford Ry", The Locomotive Magazine, Vol XII (14 April 1906), p. 55.

This pair of coupled bogie express locomotives designed by Locomotive Superintendent R Cronin were of moderate size and the the profile was upright and relatively compact. Named Rathmore and Rathcoole, they worked the Limited mail round trip between Bray and Wexford twice daily for a total of 161 miles. A double-end tank named St Brendan (# 8) used the same boiler

Principal Dimensions by Steve Llanso of Sweat House Media

ClassRathmore
Locobase ID10553
RailroadDublin, Wicklow & Wexford (DSE)
CountryGreat Britain
Whyte4-4-0
Number in Class2
Road Numbers67-68
Gauge5'3"
Number Built2
Builder
Year1905
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.83 / 2.69
Engine Wheelbase (ft / m)21.58 / 6.58
Ratio of driving wheelbase to overall engine wheelbase 0.41
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)101,136 / 45,875
Engine Weight (lbs / kg)78,400 / 35,562
Tender Loaded Weight (lbs / kg)68,096 / 30,888
Total Engine and Tender Weight (lbs / kg)146,496 / 66,450
Tender Water Capacity (gals / ML)3120 / 11.82
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 3.80 / 4
Minimum weight of rail (calculated) (lb/yd / kg/m)84 / 42
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)73 / 1854
Boiler Pressure (psi / kPa)175 / 12.10
High Pressure Cylinders (dia x stroke) (in / mm)18" x 26" / 457x660
Tractive Effort (lbs / kg)17,165 / 7785.92
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.89
Heating Ability
Tubes (number - dia) (in / mm)223 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)118.50 / 11.01
Grate Area (sq ft / m2)20 / 1.86
Evaporative Heating Surface (sq ft / m2)1193 / 110.87
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1193 / 110.87
Evaporative Heating Surface/Cylinder Volume155.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3500
Same as above plus superheater percentage3500
Same as above but substitute firebox area for grate area20,738
Power L14964
Power MT216.42

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