Buchans Mining Company, Ltd 4-6-0 Locomotives in Canada

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 15414)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 79, p.18. See also "American Smelting and Refining Company (ASARCO) Buchans Railway", archived by Trainweb at [], and "Buchans: The Making of a Company Town", a Society, Economy and Culture entry at [], both last accessed 5 September 2013. Works number was 61252 in March 1930.

Some good news, some bad news in the specifications for this small superheated Ten-wheeler. On the one hand, it would be rolling on 50 lb/yard (25 kg/metre) rail. On the other hand, the rail was laid on soft ground. 8" (203 mm) piston valves admitted the superheated steam to the cylinders. (NB: Baldwin also supplied a 2-4-2T engine with 13" x 18" cylinders [331 x 457 mm] in the same year, but that page is missing from the DeGolyer Library's copy of Volume 79.)

The railway opened in 1927 as a branch that began at Buchans Junction on the Anglo-Newfoundland Development company's rails and headed 19 miles (30.6 km) int ot the "windswept interior" to a newly established copper mine at Millertown. The line remained open for decades and operations expanded in 1957 when the BMC bought the MIllertown Railway (which ran to Millertown and Lake Ambrose). Closure came in 1976, at which point, says the Buchans Railway article, "Buchans became a ghost town."

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID15414
RailroadBuchans Mining Company, Ltd
Number in Class1
Road Numbers2
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)11 / 3.35
Engine Wheelbase (ft / m)20.50 / 6.25
Ratio of driving wheelbase to overall engine wheelbase 0.54
Overall Wheelbase (engine & tender) (ft / m)47.52 / 14.48
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)78,000 / 35,380
Engine Weight (lbs / kg)98,000 / 44,452
Tender Loaded Weight (lbs / kg)58,800 / 26,671
Total Engine and Tender Weight (lbs / kg)156,800 / 71,123
Tender Water Capacity (gals / ML)2800 / 10.61
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)5 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)17" x 22" / 432x559
Tractive Effort (lbs / kg)19,455 / 8824.65
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.01
Heating Ability
Tubes (number - dia) (in / mm)97 - 2" / 51
Flues (number - dia) (in / mm)15 - 5.375" / 137
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)116 / 10.78
Grate Area (sq ft / m2)18 / 1.67
Evaporative Heating Surface (sq ft / m2)971 / 90.21
Superheating Surface (sq ft / m2)194 / 18.02
Combined Heating Surface (sq ft / m2)1165 / 108.23
Evaporative Heating Surface/Cylinder Volume167.99
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3240
Same as above plus superheater percentage3791
Same as above but substitute firebox area for grate area24,430
Power L18556
Power MT725.49

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