Data from "Locomotives for the Waterford, Limerick and Western Railway", Engineer, Volume 84 (13 August 1897), p 154.
Engineer reported that this class was of the "Castle Hacket type", which bore that name and Brian Born . The article said that "all details as far as is practicable and necessary should be made duplicates of one another." The two Robinson tanks described here and in Locobase 20250 shared "boilers and mountings, wheels, axles, axle boxes for coupled and bogie wheels, springs and gear for coupled wheels, all the working gear, [and] valve motion."
Locomotive superintendent John G Robinson saw this pair as tools to handle the traffic between Limerick, Ennis, and Tuan over a number of "fairly sharp" curves. Their coal consumption averaged 18 lb/mile (5.07 kg/km).
In January 1901, the Great Southern & Western acquired both the WL&W and the Waterford & Central Ireland.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 51/294/E2 |
| Locobase ID | 20249 |
| Railroad | Waterford, Limerick, & Western |
| Country | Ireland |
| Whyte | 0-4-4T |
| Number in Class | 4 |
| Road Numbers | 51-52/294-295 |
| Gauge | 5'3" |
| Number Built | 4 |
| Builder | Kitson & Co |
| Year | 1895 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.50 / 2.29 |
| Engine Wheelbase (ft / m) | 21.75 / 6.63 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.34 |
| Overall Wheelbase (engine & tender) (ft / m) | 21.75 / 6.63 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 29,120 / 13,209 |
| Weight on Drivers (lbs / kg) | / 26,417 |
| Engine Weight (lbs / kg) | 107,520 / 47,703 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1200 / 4.55 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.65 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 66 / 1676 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 11,869 / 5383.69 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 88 / 8.18 |
| Grate Area (sq ft / m2) | 15 / 1.39 |
| Evaporative Heating Surface (sq ft / m2) | 868 / 80.64 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 868 / 80.64 |
| Evaporative Heating Surface/Cylinder Volume | 155.41 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2250 |
| Same as above plus superheater percentage | 2250 |
| Same as above but substitute firebox area for grate area | 13,200 |
| Power L1 | 3864 |
| Power MT | |