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 Middle Run Media | |
|---|---|
| Class | 500 |
| Locobase ID | 14326 |
| Railroad | Nevada Consolidated Copper Company |
| Country | USA |
| Whyte | 0-6-2ST |
| Number in Class | 2 |
| Road Numbers | 500-501 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1917 |
| Valve Gear | Stephenson |
| 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 / 1240 |
| 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 Volume | 156.62 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5040 |
| Same as above plus superheater percentage | 5897 |
| Same as above but substitute firebox area for grate area | 28,220 |
| Power L1 | 7351 |
| Power MT | 333.00 |