Data from "The Government Railways of North China, the Pekin-Mukden Ry", Locomotive Magazine, Volume XXII [22] (15 August 1916), p. 165. (Thanks to George Ferguson for his 13 July 2025 email correcting the spelling of the builder's name.)
This mixed-traffic Mogul had a sloping grate which caused the builder to set the rear axle 2 1/4 ft (686 mm) further away from the second axle than the second was from the first. A straight boiler led back to a slightly bigger firebox. Outside cylinders were fed by inside valves.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 16 |
| Locobase ID | 20558 |
| Railroad | Peking-Mukden |
| Country | China |
| Whyte | 2-6-0 |
| Number in Class | 3 |
| Road Numbers | 16, 18-19 |
| Gauge | Std |
| Number Built | 3 |
| Builder | Dubs & Co |
| Year | 1891 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 13.25 / 4.04 |
| Engine Wheelbase (ft / m) | 21.33 / 6.50 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.62 |
| Overall Wheelbase (engine & tender) (ft / m) | 45.91 / 7.06 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 98,560 / 44,706 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 3840 / 2.73 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.85 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 19,652 / 8914.01 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | 105.30 / 9.78 |
| Grate Area (sq ft / m2) | 17.17 / 1.60 |
| Evaporative Heating Surface (sq ft / m2) | 1059 / 98.38 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1059 / 98.38 |
| Evaporative Heating Surface/Cylinder Volume | 167.96 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3091 |
| Same as above plus superheater percentage | 3091 |
| Same as above but substitute firebox area for grate area | 18,954 |
| Power L1 | 4074 |
| Power MT | |