Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p. 23. See Mark L Evans, "The Silverton Railroads" page of the narrowgauge.org website at [], last accessed 10 June 2011.. Works number was 24130 in April 1904.
The SG & N was the third of three narrow-gauge railroads to be based in Silverton, Colorado and was the shortest of the 3 at 7.2 miles. Its path up Cement Creek included grades pitched at 5 1/2% and 99 curves of which 5 were wracked into 40-degree contortions. It opened on 2 July 1899.
After operating a couple of small, used Consolidations, the SG & N bought the Gold Prince, which was a much bigger and heavier locomotive.
After the closing of the Kendrick-Gelder smelter in 1908, the railroad went into irreversible decline and was leased in 1910 by Otto Mears, the owner of the other Silverton railroads and bought outright in 1915..
Silverton sold the 34 to the White Pass & Yukon in 1942; the WP & Y renumbered the engine 24.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | Gold Prince |
Locobase ID | 12704 |
Railroad | Silverton, Gladstone & Northerly |
Country | USA |
Whyte | 2-8-0 |
Number in Class | 2 |
Road Numbers | 34 |
Gauge | 3' |
Number Built | 2 |
Builder | Burnham, Williams & Co |
Year | 1904 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10.58 / 3.22 |
Engine Wheelbase (ft / m) | 18.08 / 5.51 |
Ratio of driving wheelbase to overall engine wheelbase | 0.59 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 70,000 / 31,752 |
Engine Weight (lbs / kg) | 80,000 / 36,287 |
Tender Loaded Weight (lbs / kg) | 54,000 / 24,494 |
Total Engine and Tender Weight (lbs / kg) | 134,000 / 60,781 |
Tender Water Capacity (gals / ML) | 2500 / 9.47 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 37 / 940 |
Boiler Pressure (psi / kPa) | 160 / 1100 |
High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 20" / 406x508 |
Tractive Effort (lbs / kg) | 18,819 / 8536.16 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.72 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 124 - 2.25" / 57 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 14.98 / 4.57 |
Firebox Area (sq ft / m2) | 61.20 / 5.69 |
Grate Area (sq ft / m2) | 15.80 / 1.47 |
Evaporative Heating Surface (sq ft / m2) | 1149 / 106.78 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1149 / 106.78 |
Evaporative Heating Surface/Cylinder Volume | 247.10 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 2528 |
Same as above plus superheater percentage | 2528 |
Same as above but substitute firebox area for grate area | 9792 |
Power L1 | 3087 |
Power MT | 388.89 |