Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 20, p. 262. See also "The Government Railways of North China, the Pekin-Mukden Ry", Locomotive Magazine, Volume XXII [22] (15 August 1916), p. 166. Works numbers were 15284-15287 in April 1897.
At the same time Baldwin built Moguls for the Imperial Chinese (soon to be renamed the Peking-Mukden Railway) -- Locobase 12235 -- it used the same boilers and placed very tall drivers under them. The result was a quartet of express engines with outsized drivers in a layout that lacked grace.
Data from "Passenger Locomotive, Imperial Chinese Railways," The Locomotive & Railway Carriage & Wagon Review, Vol IV (December 1899), p.187.
There's nothing more in the article to flesh out the actual building date of this class; the date shown is an estimate, as is the boiler pressure.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | 43 | 440 |
| Locobase ID | 10519 | 10134 |
| Railroad | Imperial Chinese | Imperial Chinese |
| Country | China | China |
| Whyte | 4-4-0 | 4-4-0 |
| Number in Class | 4 | |
| Road Numbers | 43-46 | |
| Gauge | Std | Std |
| Number Built | 4 | |
| Builder | Burnham, Williams & Co | Dubs & Co |
| Year | 1897 | 1897 |
| Valve Gear | Stephenson | Stephenson |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 8 / 2.44 | 8.25 / 2.51 |
| Engine Wheelbase (ft / m) | 21.42 / 6.53 | |
| Ratio of driving wheelbase to overall engine wheelbase | 0.37 | |
| Overall Wheelbase (engine & tender) (ft / m) | 46.84 / 14.28 | 42.79 / 13.04 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 71,000 / 32,205 | |
| Engine Weight (lbs / kg) | 116,000 / 52,617 | 84,672 / 38,407 |
| Tender Loaded Weight (lbs / kg) | 96,000 / 43,545 | 62,384 / 28,297 |
| Total Engine and Tender Weight (lbs / kg) | 212,000 / 96,162 | 147,056 / 66,704 |
| Tender Water Capacity (gals / ML) | 4800 / 18.18 | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3.90 / 4 | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 59 / 29.50 | |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 84 / 2134 | 70 / 1778 |
| Boiler Pressure (psi / kPa) | 180 / 1240 | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 24" / 483x610 | 17" x 24" / 432x610 |
| Tractive Effort (lbs / kg) | 15,781 / 7158.15 | 12,633 / 5730.24 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.50 | |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 238 - 2" / 51 | |
| Flues (number - dia) (in / mm) | ||
| Flue/Tube length (ft / m) | 12 / 3.66 | |
| Firebox Area (sq ft / m2) | 123 / 11.43 | |
| Grate Area (sq ft / m2) | 24 / 2.23 | 17.17 / 1.60 |
| Evaporative Heating Surface (sq ft / m2) | 1608 / 149.39 | 1058 / 98.33 |
| Superheating Surface (sq ft / m2) | ||
| Combined Heating Surface (sq ft / m2) | 1608 / 149.39 | 1058 / 98.33 |
| Evaporative Heating Surface/Cylinder Volume | 204.17 | 167.80 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 4320 | 2576 |
| Same as above plus superheater percentage | 4320 | 2576 |
| Same as above but substitute firebox area for grate area | 22,140 | |
| Power L1 | 7113 | |
| Power MT | 441.73 | |