Data from "Welshpool & Llanfair Light Railway," Railway Magazine, Volume 13, (July 1903), p. 64-68. See also the Railroad Glory Days website article on the WLLR at [], last accessed 31 January 2012. Works numbers were 3496-3497 in 1902.
"The Earl" and "The Countess" were named for the Earl of Powys and his Countess. The 9-mile (14.5 km) line from Welshpool to Llanfair began construction in May 1901 and completed 9 months later in February 1902. Its first two miles climbed on the average of 150 ft/mile (2.8%).
The RGD summary of the WLLR is hard to beat. "This is rural country, not mountainous like farther west. The gently rolling landscape is dotted with small farms and pasture land. It was in fact agriculture that brought the railway here. Unlike all the other Welsh narrow gauges I visited, the W&L was built not for mining, but to haul agricultural goods and perhaps a few rural citizens to and from the small market town of Welshpool or to the standard gauge connection there with the Cambrian Railways."
When the Great Western Railway took over operation of the W & LLR, God's Wonderful Railway renumbered the 1 & 2 as 822-823.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | The Countess |
Locobase ID | 13803 |
Railroad | Welshpool & Llanfair Light Railway |
Country | Great Britain |
Whyte | 0-6-0T |
Number in Class | 2 |
Road Numbers | 1-2 / 822-823 |
Gauge | 2'6" |
Number Built | 2 |
Builder | Beyer, Peacock |
Year | 1902 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10 / 3.05 |
Engine Wheelbase (ft / m) | 10 / 3.05 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 10 / 3.05 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | 24,080 / 10,923 |
Weight on Drivers (lbs / kg) | 43,680 / 19,813 |
Engine Weight (lbs / kg) | 43,680 / 19,813 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | 43,680 / 19,813 |
Tender Water Capacity (gals / ML) | |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 33 / 838 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 11.5" x 16" / 292x406 |
Tractive Effort (lbs / kg) | 8720 / 3955.33 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.01 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 119 - 1.75" / 44 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 7.33 / 2.23 |
Firebox Area (sq ft / m2) | 37 / 3.44 |
Grate Area (sq ft / m2) | |
Evaporative Heating Surface (sq ft / m2) | 433 / 40.23 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 433 / 40.23 |
Evaporative Heating Surface/Cylinder Volume | 225.11 |
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 | 5920 |
Power L1 | 2827 |
Power MT | 428.05 |