Ulster 2-4-0 Locomotives in Ireland


Class Details by Steve Llanso of Sweat House Media

Class Province (Locobase 20701)

Data from "Four-coupled Passenger Engines, Ulster Ry", Locomotive Magazine, Volume XXV [25] (15 August 1919), pp. 124-125. Works numbers were 367-370 in 1863.

This quartet of express engines were the only ones to run on the Ulster Railway before its absorption by the Great Northern of Ireland in 1876. As built, the design reflected contemporary BP practice in using a raised firebox and a dome positioned well forward, brass casings and copper-topped chimneys. Locobase has designated them as the Province class because each engine was named for one of the four Irish Provinces: Ulster, Munster, Leinster, and Connaught in works and road number order.

"For many years", said the 1919 report, the class "performed the most important work on the system." Impressive, but the report immediately adds, "[I]t must be admitted that at the time they were built this was not of a very exacting nature." The premier trains of the Dublin mails covered the 25 miles between Belfast and Portadown in 48 minutes while making two intermediate stops for a 31 mph (50 kph) average.

A few years after their adoption by the GNR(I), the Belfast Works rebuilt the engines; see Locobase 20702.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassProvince
Locobase ID20701
RailroadUlster
CountryIreland
Whyte2-4-0
Number in Class4
Road Numbers26-29
GaugeStd
Number Built4
BuilderBeyer, Peacock
Year1863
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.75 / 2.36
Engine Wheelbase (ft / m)14.83 / 4.52
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)24,976 / 11,329
Weight on Drivers (lbs / kg)47,040 / 21,337
Engine Weight (lbs / kg)70,784 / 32,107
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)39 / 19.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)73 / 1854
Boiler Pressure (psi / kPa)120 / 830
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559
Tractive Effort (lbs / kg)7869 / 3569.32
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.98
Heating Ability
Tubes (number - dia) (in / mm)160 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.70 / 3.26
Firebox Area (sq ft / m2)82 / 7.62
Grate Area (sq ft / m2)14.80 / 1.37
Evaporative Heating Surface (sq ft / m2)979 / 90.95
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)979 / 90.95
Evaporative Heating Surface/Cylinder Volume191.22
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1776
Same as above plus superheater percentage1776
Same as above but substitute firebox area for grate area9840
Power L13961
Power MT371.28

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