Data from Francis Whishaw, Railroads of Great Britain and Ireland, London: John Weale, 1842), pp. 468-469.
This Scottish broad-gauge railway bought three engines from Stirling - Victoria, Brittania, Caldeonia. They were coke-burners that opened the A&F in January 1839. The railway left the port of Arbroath and wound its way to Forfar, ascending 222 ft over 15 miles of line. The founder and Chairman of the railway, Mr Lindsay Grainger, said he adopted the 5' 6" gauge because the Great Western's 7' was too wide and the standard gauge too narrow.
In the first 15 months the railway averaged 300 passengers and 138 tons of freight per day. During that time, Caledonia had traveled 16,000 miles and cost 7 pounds in repairs including six new tubes.
In January 1846, the Aberdeen Railway leased the A & F with an option for complete absorption five years hence. One of the conditions of the agreement was a reduction in the gauge from 5' 6" to the standard 4' 8 1/2"
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Victoria |
| Locobase ID | 9060 |
| Railroad | Arbroath & Forfar |
| Country | Great Britain |
| Whyte | 2-2-2 |
| Number in Class | 3 |
| Road Numbers | |
| Gauge | 5'6" |
| Number Built | 3 |
| Builder | Stirling |
| Year | 1839 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| 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) | 648 / 2.45 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 60 / 1524 |
| Boiler Pressure (psi / kPa) | |
| High Pressure Cylinders (dia x stroke) (in / mm) | |
| Tractive Effort (lbs / kg) | |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 105 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.42 / 2.57 |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 10 / 0.93 |
| Evaporative Heating Surface (sq ft / m2) | |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | |
| Evaporative Heating Surface/Cylinder Volume | |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | |
| Same as above plus superheater percentage | |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |