Peking-Mukden 2-8-2 Locomotives in China


Class Details by Steve Llanso of Sweat House Media

Class 200 (Locobase 14645)

Data from DeGolyer, Vol 60, pp. 281. See also Julean Arnold, Commercial Handbook of China, Volume I, Miscellaneous Series-No 84 (Washington, DC: Government Printing Office, 1919). Works numbers were 46200-46201 in August 1917 and 51307-51312, 51340, 51369-51375 in February 1919.

The first two of this class of Mikados were delivered in 1917 with tenders holding 4,200 US gallons of water and 5 1/2 short tons of coal; they weighed 80,000 lb (36,287 kg) loaded.

By the time this class was delivered, the PMR operated 600 route miles. Its 522-mile (840 km) main line was completed in 1903 and connected the Imperial City with Mukden in the northeast, where it linked to the South Manchuria Railway. Along the way, the PMR passed through Tientsin and the Kaping coal field.

Largely funded by British interests and described as the oldest railway in China, the PMR's management in 1918 was overseen by a Chinese managing director. At that time, the railway was known in Chinese as the Ching-Feng

Principal Dimensions by Steve Llanso of Middle Run Media
Class200
Locobase ID14645
RailroadPeking-Mukden
CountryChina
Whyte2-8-2
Number in Class16
Road Numbers200-215
GaugeStd
Number Built16
BuilderBaldwin
Year1917
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)15 / 4.57
Engine Wheelbase (ft / m)31.33 / 9.55
Ratio of driving wheelbase to overall engine wheelbase 0.48
Overall Wheelbase (engine & tender) (ft / m)53.50 / 16.31
Axle Loading (Maximum Weight per Axle) (lbs / kg)35,840 / 16,257
Weight on Drivers (lbs / kg)142,000 / 64,410
Engine Weight (lbs / kg)188,000 / 85,275
Tender Loaded Weight (lbs / kg)80,000 / 36,287
Total Engine and Tender Weight (lbs / kg)268,000 / 121,562
Tender Water Capacity (gals / ML)6000 / 22.73
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 9.50 / 9
Minimum weight of rail (calculated) (lb/yd / kg/m)59 / 29.50
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)21" x 28" / 533x711
Tractive Effort (lbs / kg)34,986 / 15869.40
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.06
Heating Ability
Tubes (number - dia) (in / mm)172 - 2" / 51
Flues (number - dia) (in / mm)24 - 5.375" / 137
Flue/Tube length (ft / m)18 / 5.49
Firebox Area (sq ft / m2)146 / 13.56
Grate Area (sq ft / m2)41.40 / 3.85
Evaporative Heating Surface (sq ft / m2)2365 / 219.71
Superheating Surface (sq ft / m2)508 / 47.19
Combined Heating Surface (sq ft / m2)2873 / 266.90
Evaporative Heating Surface/Cylinder Volume210.70
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7452
Same as above plus superheater percentage8793
Same as above but substitute firebox area for grate area31,010
Power L111,065
Power MT687.16

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