Chung Hsing Mining Company 2-6-4 Locomotives in China


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 14227)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 49, p.232. Works numbers were 41013-41014 in December 1913.

This mining railway was built to relatively undemanding standards. Maximum grade was only 1 in 250 (0.2%) and minimum curve radii measured 400 metres/1,320 feet on the main line, 190 metres/623 feet into the sidings. "Under normal conditions," read the specification's haulage guarantee,"one of these locos. will haul 16 loaded 30-ton freight cars, weighing in total 688 gross tons and carrying 480 gross tons of cargo from Tei erh chuang [sic] to Tso chuang (a distance of 41,420 metres [25.72 miles] at an average speed of 20 miles per hour [32.2 km/h]."

The large water capacity (1,200 US gallons in the side tanks, 1,100 gallons in the rear tank) arose from the requirement that the run described above be completed without re-watering. An equalizing pipe across the front end balanced the water between the two side tanks.The relatively capacious coal box on the rear resulted in the deletion of the cab's middle two rear windows.

The stack had a copper top as its only frill.

The sale of the two engines was negotiated by the Arnold Karberg Company Agency, whose name plates were affixed to the sides of the steam chests.

Principal Dimensions by Steve Llanso of Middle Run Media
Class1
Locobase ID14227
RailroadChung Hsing Mining Company
CountryChina
Whyte2-6-4T
Number in Class2
Road Numbers1-2
GaugeStd
Number Built2
BuilderBaldwin
Year1913
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)11.33 / 3.45
Engine Wheelbase (ft / m)29.83 / 9.09
Ratio of driving wheelbase to overall engine wheelbase 0.38
Overall Wheelbase (engine & tender) (ft / m)29.83 / 9.09
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)80,000 / 36,287
Engine Weight (lbs / kg)130,000 / 58,967
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2300 / 8.71
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 2.50 / 2
Minimum weight of rail (calculated) (lb/yd / kg/m)44 / 22
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)170 / 1170
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559
Tractive Effort (lbs / kg)16,955 / 7690.67
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.72
Heating Ability
Tubes (number - dia) (in / mm)186 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)94 / 8.73
Grate Area (sq ft / m2)61.20 / 5.69
Evaporative Heating Surface (sq ft / m2)1108 / 102.94
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1108 / 102.94
Evaporative Heating Surface/Cylinder Volume216.42
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation10,404
Same as above plus superheater percentage10,404
Same as above but substitute firebox area for grate area15,980
Power L14192
Power MT346.57

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