Ballymena, Cushendall & Red Bay 0-4-2 Locomotives in Ireland

Class Details by Steve Llanso of Sweat House Media

Class O (Locobase 10227)

Data from "Narrow-Gauge Locomotives of the Belfast and Northern Counties RY," The Locomotive Magazine, Vol VII (May 1902), p. 93. Works numbers were 301-303. [] and [],_Cushendall_and_Red_Bay_Railway for information about the railway.

This trio of small saddle tanks were the only motive power procured by B C & RB. Opeing in May 1875, this mineral-traffic railway connected Ballymena to Retreat, a spot just short of Cushendall on the northeast coast of the Irish Seas. It was a rough profile with a 1,045-ft mountain to scale along the way, the highest elevation negotiated by an Irish railway.

It wasn't long (8 years) before the Belfast & Northern Counties took them in along with the railway. Two years later the B & NC opened the line to Knockanally (later Martinstown) in April 1886 for passenger service and extended passenger availability to Parkmore (13 1/2 miles from Ballymena) four months later.

Through periodic renumberings, the class served as a threesome until 1909, when 103 was scrapped. The other two persisted until December 1923. Passenger service on the old B C & RB line ended in 1930 and the line itself was closed in 1940.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID10227
RailroadBallymena, Cushendall & Red Bay
Number in Class3
Road Numbers1-3 / 60-62 / 101-103
Number Built3
BuilderBlack, Hawthorn
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 6.33 / 1.93
Engine Wheelbase (ft / m)12.83 / 3.91
Ratio of driving wheelbase to overall engine wheelbase 0.49
Overall Wheelbase (engine & tender) (ft / m)12.50 / 3.81
Axle Loading (Maximum Weight per Axle) (lbs / kg)20,160 / 9144
Weight on Drivers (lbs / kg)40,320 / 18,289
Engine Weight (lbs / kg)50,400 / 22,861
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)50,400 / 22,861
Tender Water Capacity (gals / ML)600 / 2.27
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)34 / 17
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)37 / 940
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)12" x 19" / 305x483
Tractive Effort (lbs / kg)8800 / 3991.62
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.58
Heating Ability
Tubes (number - dia) (in / mm)104 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 9.31 / 2.84
Firebox Area (sq ft / m2)46.68 / 4.34
Grate Area (sq ft / m2) 6.53 / 0.61
Evaporative Heating Surface (sq ft / m2)457 / 42.47
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)457 / 42.47
Evaporative Heating Surface/Cylinder Volume183.75
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation914
Same as above plus superheater percentage914
Same as above but substitute firebox area for grate area6535
Power L12397
Power MT262.13

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Wes Barris