Nevada Consolidated Copper Company 0-6-2 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 500 (Locobase 14326)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 53, pp. 63+. (Thanks to Chris Hohl for his 25 July 2023 email reporting the coal capacity Works numbers were 44795-44796 in January 1917.

The NCC laid 75 lb/yard (37.5 kg/metre) rail over a profile that included maximum 5% grades and very tight 45 degree curves (radii of 130 feet/39.6 metres). This superheated radial tank used 9 1/2" (241 mm) piston valves to supply steam to the cylinders. An unequalized trailing truck with a single axle swung on its center bearling a generous 8 1/2"(216 mm) to each side.

The specs show a "Hereafter" note dated 16 December 1916 reported "Driving wheels to be revised to provide more volume for lead in counterbalance." Locobase supposes Baldwin modified the drivers before delivering the pair in early 1917.

Another "Hereafter" note dated 22 November 1917 recommended strengthening the rear truck's carrying capacity to 32,000 lb (14,515 kg), which doubled the weight estimate for that truck in Baldwin's specs. "R S McC"'s additional comment suggested suggesting raising a "question about the use of flanged tires on middle drivers". When delivered, the middle drivers had no flanges.

The design was one of the biggest of that wheel arrangement to be operated by any railroad. It suited the NCCC, which ran it for more than thirty years before its scrapping in 1951.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID14326
RailroadNevada Consolidated Copper Company
Number in Class2
Road Numbers500-501
Number Built2
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)11 / 3.35
Engine Wheelbase (ft / m)19.83 / 6.04
Ratio of driving wheelbase to overall engine wheelbase 0.55
Overall Wheelbase (engine & tender) (ft / m)19.83 / 6.04
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)146,000 / 66,225
Engine Weight (lbs / kg)162,000 / 73,482
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)162,000
Tender Water Capacity (gals / ML)2200 / 8.33
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)3
Minimum weight of rail (calculated) (lb/yd / kg/m)81 / 40.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)46 / 1168
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x660
Tractive Effort (lbs / kg)31,219 / 14160.72
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.68
Heating Ability
Tubes (number - dia) (in / mm)135 - 2" / 51
Flues (number - dia) (in / mm)21 - 5.5" / 140
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)134 / 12.45
Grate Area (sq ft / m2)28 / 2.60
Evaporative Heating Surface (sq ft / m2)1336 / 124.12
Superheating Surface (sq ft / m2)282 / 26.20
Combined Heating Surface (sq ft / m2)1618 / 150.32
Evaporative Heating Surface/Cylinder Volume156.62
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5040
Same as above plus superheater percentage5897
Same as above but substitute firebox area for grate area28,220
Power L17351
Power MT333.00

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Wes Barris