Imperial Chinese 4-4-0 Locomotives in China


Class Details by Steve Llanso of Sweat House Media

Class 43 (Locobase 10519)

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.


Class 440 (Locobase 10134)

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 Sweat House Media

Class43440
Locobase ID10519 10134
RailroadImperial ChineseImperial Chinese
CountryChinaChina
Whyte4-4-04-4-0
Number in Class4
Road Numbers43-46
GaugeStdStd
Number Built4
BuilderBurnham, Williams & CoDubs & Co
Year18971897
Valve GearStephensonStephenson
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 / 14.2842.79 / 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 / 52,61784,672 / 38,407
Tender Loaded Weight (lbs / kg)96,000 / 43,54562,384 / 28,297
Total Engine and Tender Weight (lbs / kg)212,000 / 96,162147,056 / 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 / 213470 / 1778
Boiler Pressure (psi / kPa)180 / 12.40150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x61017" x 24" / 432x610
Tractive Effort (lbs / kg)15,781 / 7158.1512,633 / 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 / 2.2317.17 / 1.60
Evaporative Heating Surface (sq ft / m2)1608 / 149.391058 / 98.33
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1608 / 149.391058 / 98.33
Evaporative Heating Surface/Cylinder Volume204.17167.80
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation43202576
Same as above plus superheater percentage43202576
Same as above but substitute firebox area for grate area22,140
Power L17113
Power MT441.73

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