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 Middle Run Media | |
|---|---|
| Class | O |
| Locobase ID | 10227 |
| Railroad | Ballymena, Cushendall & Red Bay |
| Country | Ireland |
| Whyte | 0-4-2ST |
| Number in Class | 3 |
| Road Numbers | 1-3 / 60-62 / 101-103 |
| Gauge | 3' |
| Number Built | 3 |
| Builder | Black, Hawthorn |
| Year | 1874 |
| Valve Gear | Stephenson |
| 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) | |
| 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 / 970 |
| 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 Volume | 183.75 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 914 |
| Same as above plus superheater percentage | 914 |
| Same as above but substitute firebox area for grate area | 6535 |
| Power L1 | 2397 |
| Power MT | 262.13 |