Data from "The First Locomotive Built in Ireland", The Locomotive Magazine, (15 August 1904), p.136.
Not until 1845 did someone try to build a locomotive in Ireland - this was the first. Designers Greendon and Mackay crafted an engine with an enormous dome well forward, just behind the stack. A high running board cleared both auxiliary wheels and provided only a slender slice of slotted splasher on the drivers. Naturally the footboard was utterly unprotected.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Victoria |
| Locobase ID | 10457 |
| Railroad | Dublin & Drogheda |
| Country | Ireland |
| Whyte | 2-2-2 |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | 5'3" |
| Number Built | 1 |
| Builder | Drogheda Ironworks |
| Year | 1845 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 11 / 3.35 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 22.08 / 6.73 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | |
| 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) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 100 / 690 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 12" / 229x305 |
| Tractive Effort (lbs / kg) | 1721 / 780.63 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 80 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.50 / 2.59 |
| Firebox Area (sq ft / m2) | 39 / 3.62 |
| Grate Area (sq ft / m2) | 6.20 / 0.58 |
| Evaporative Heating Surface (sq ft / m2) | 351 / 32.61 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 351 / 32.61 |
| Evaporative Heating Surface/Cylinder Volume | 397.25 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 620 |
| Same as above plus superheater percentage | 620 |
| Same as above but substitute firebox area for grate area | 3900 |
| Power L1 | 4944 |
| Power MT | |