Imperial Chinese / Peking-Mukden 2-6-0 "Mogul" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 39 (Locobase 12235)

Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 20, p. 262. Works numbers were 15289-15292 in April 1897.

The Imperial Chinese railway was funded with British capital under a Chinese-British loan agreement signed 10 October 1898. It soon was renamed the Peking-Mukden. This quartet was renumbered 43-46 and served the railway when the Peking-Tientsin section opened in 1897.

Specifications by Steve Llanso of Sweat House Media
Class39
Locobase ID12,235
RailroadImperial Chinese / Peking-Mukden
CountryUSA
Whyte2-6-0
Number in Class4
Road Numbers39-42 / 43-46
GaugeStd
Number Built4
BuilderBurnham, Williams & Co
Year1897
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)15 / 4.57
Engine Wheelbase (ft / m)23.25 / 7.09
Ratio of driving wheelbase to overall engine wheebase 0.65
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)107,000 / 48,534
Engine Weight (lbs / kg)129,000 / 58,513
Tender Loaded Weight (lbs / kg)96,000 / 43,545
Total Engine and Tender Weight (lbs / kg)225,000 / 102,058
Tender Water Capacity (gals / ML)4800 / 18.18
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60 / 1524
Boiler Pressure (psi / kPa)150 / 10.30
High Pressure Cylinders (dia x stroke) (in / mm)19" x 24" / 483x610
Tractive Effort (lbs / kg)18,411 / 8351.10
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.81
Heating Ability
Firebox Area (sq ft / m2)123.20 / 11.45
Grate Area (sq ft / m2)24 / 2.23
Evaporative Heating Surface (sq ft / m2)1608 / 149.44
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1608 / 149.44
Evaporative Heating Surface/Cylinder Volume204.17
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3600
Same as above plus superheater percentage3600
Same as above but substitute firebox area for grate area18,480
Power L14236
Power MT261.83