Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 53, pp. 365+. Works numbers were 42076 in May 1915.
This was a New Jersey mining road that provided passenger service for the miners. The MHMRR was incorporated into the Central of New Jersey in 1930.
Meanwhile the 3 was sold to E H Wilson Company, who sold it to locomotive rebuilder/reseller Birmingham Rail & Locomotive. In March 1929, BR&L sold the engine to the Cherry River Boom & Lumber of Richwood, WVa.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 14345 |
| Railroad | Mount Hope Mineral |
| Country | USA |
| Whyte | 2-8-0 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1915 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.50 / 4.11 |
| Engine Wheelbase (ft / m) | 22 / 6.71 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
| Overall Wheelbase (engine & tender) (ft / m) | 49.17 / 14.99 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 124,000 / 56,246 |
| Engine Weight (lbs / kg) | 140,000 / 63,503 |
| Tender Loaded Weight (lbs / kg) | 70,000 / 31,752 |
| Total Engine and Tender Weight (lbs / kg) | 210,000 / 95,255 |
| Tender Water Capacity (gals / ML) | 3500 / 13.26 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 52 / 26 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 190 / 1310 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 26" / 483x660 |
| Tractive Effort (lbs / kg) | 30,317 / 13751.58 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.09 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 250 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.42 / 4.09 |
| Firebox Area (sq ft / m2) | 156.60 / 14.55 |
| Grate Area (sq ft / m2) | 29.50 / 2.74 |
| Evaporative Heating Surface (sq ft / m2) | 1902 / 176.70 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1902 / 176.70 |
| Evaporative Heating Surface/Cylinder Volume | 222.98 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5605 |
| Same as above plus superheater percentage | 5605 |
| Same as above but substitute firebox area for grate area | 29,754 |
| Power L1 | 4984 |
| Power MT | 354.45 |