The Bingham Central originally was created in 1907 to ensure that the ore from the Bingham mines would get to the Garfield smelter. In 1908 Utah Copper organized the system as the B & G and began surveying the route immediately. Construction took the next 3 years with the first trip of this mighty Mallet and 41 new cars occurring on 14 Sept 1911.
The first four engines were produced individually in June (works #49978), July (50018), and November (50483) 1911 and August 1912 (51710). Three more followed with only detail differences in March 1917 (56788 & 56965) and November 1918 (59492). A chart in the diagram book shows that the locomotives varied in the number of tubes (262, 261, 256, 264, 263, 255, and 265, respectively).
Very few 16-coupled Mallets with no auxiliary axles were built for US operation, but the B & G found them satisfactory.
Kennecott Copper Corporation bought Utah Copper (parent of the Bingham & Garfield) in 1936. In 1947, Kennecott inaugurated the new, all-electric Copperton Low Line that supplanted the steam-powered Utah Copper Division line.
| Specifications | |
|---|---|
| Class | 100 |
| Locobase ID | 6941 |
| Railroad | Bingham & Garfield |
| Whyte | 0-8-8-0 |
| Road Numbers | 100-103, 104-106 |
| Gauge | Std |
| Builder | Alco-Schenectady |
| Year | 1911 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 14.17' |
| Engine Wheelbase | 40.17' |
| Ratio of driving wheelbase to overall engine wheebase | 0.35 |
| Overall Wheelbase (engine & tender) | 59.12' |
| Axle Loading (Maximum Weight per Axle) | 55900 lbs |
| Weight on Drivers | 462840 lbs |
| Engine Weight | 462840 lbs |
| Tender Light Weight | 237100 lbs |
| Total Engine and Tender Weight | 699940 lbs |
| Tender Water Capacity | 13200 gals |
| Tender Fuel Capacity (oil/coal) | 19 tons |
| Minimum weight per yard of rail on which locomotive could run | 96.42 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 51" |
| Boiler Pressure | 130 psi |
| Cylinders (dia x stroke) | 26" x 28" |
| Low Pressure Cylinders (dia x stroke) | 41" x 28" |
| Tractive Effort | 58497 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 7.91 |
| Heating Ability | |
| Firebox Area | 411 sq. ft |
| Grate Area | 100 sq. ft |
| Evaporative Heating Surface | 5598 |
| Superheating Surface | 1577 |
| Combined Heating Surface | 7175 |
| Evaporative Heating Surface/Cylinder Volume | 325.35 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 13000 |
| Same as above plus superheater percentage | 15857.28 |
| Same as above but substitute firebox area for grate area | 65173.43 |
| Power L1 | 5641.99 |
| Power MT | 214.99 |
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