Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 78, pp. 360. Works numbers were 58435 in May 1925.
The Peipao coal fields were described in 1921 as holding a "bituminous variety of excellent quality", indeed "superior to much of the coal ...mined in North China." The railway rolled on 60 lb/yard (30 kg/metre) rail up relatively modest 1.25% grades. This saddle tank was ordered with a copper top on the stack, but the specs expressly stated that the tubes were "NOT to be welded to fire box tube sheet."
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 1 |
| Locobase ID | 15409 |
| Railroad | Peipiao Mines |
| Country | China |
| Whyte | 0-4-0ST |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1925 |
| 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 / 12.40 |
| 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) | 9.10 / 2.77 |
| 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 |