Great Southern & Western 2-2-2 Locomotives in Ireland

Class Details by Steve Llanso of Sweat House Media

Class 36 (Locobase 4807)

A Bury design with the haystack firebox, this locomotive was one of the first of the largest railway in Ireland. According to "Ireland's Railway Systems" (reproduced on Mike's Railway History website []), "This locomotive covered 487,919 miles in a quarter of a century of service, being withdrawn from service in January, 1874."

The photograph does indeed show a typical Bury design with the driving axle forward of the firebox, the haystack dome over the firebox, a horsecollar smokebox, tall stack, and spindly wheels.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID4807
RailroadGreat Southern & Western
Number in Class1
Road Numbers
Number Built1
BuilderBury, Curtis, and Kennedy
Valve Gear
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)51,520 / 23,369
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
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)80 / 5.50
High Pressure Cylinders (dia x stroke) (in / mm)15" x 20" / 381x508
Tractive Effort (lbs / kg)4250 / 1927.77
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)151 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.92 / 3.63
Firebox Area (sq ft / m2)60 / 5.58
Grate Area (sq ft / m2)12.75 / 1.18
Evaporative Heating Surface (sq ft / m2)1060 / 98.51
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1060 / 98.51
Evaporative Heating Surface/Cylinder Volume259.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1020
Same as above plus superheater percentage1020
Same as above but substitute firebox area for grate area4800
Power L13192
Power MT

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