Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 60, pp. 150. Works numbers were 52402-52403 in September 1919.
Rail weight for the line these saddle tanks traversed came to 60 lb/yard (30 kg/metre). The tightest curve was 8 degrees (radii of 717 feet/219 metres) combined with a 1,000 foot (305 m) length.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 14623 |
| Railroad | Hupeh Government Mining Bureau |
| Country | China |
| Whyte | 0-4-0ST |
| Number in Class | 2 |
| Road Numbers | 3-4 |
| Gauge | Std |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1919 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 6 / 1.83 |
| Engine Wheelbase (ft / m) | 6 / 1.83 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 6 / 1.83 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 61,000 / 27,669 |
| Engine Weight (lbs / kg) | 61,000 / 27,669 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 61,000 / 27,669 |
| Tender Water Capacity (gals / ML) | 1000 / 3.79 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 51 / 25.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 22" / 330x559 |
| Tractive Effort (lbs / kg) | 12,929 / 5864.50 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.72 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 83 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.12 / 2.78 |
| Firebox Area (sq ft / m2) | 43 / 3.99 |
| Grate Area (sq ft / m2) | 10 / 0.93 |
| Evaporative Heating Surface (sq ft / m2) | 387 / 35.95 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 387 / 35.95 |
| Evaporative Heating Surface/Cylinder Volume | 114.51 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1800 |
| Same as above plus superheater percentage | 1800 |
| Same as above but substitute firebox area for grate area | 7740 |
| Power L1 | 2351 |
| Power MT | 169.94 |