Shanghai-Nanking 4-6-0 Locomotives in China

Class Details by Steve Llanso of Sweat House Media

Class B3 (Locobase 2663)

Data from "Six-Coupled Bogie Locomotives Shanghai-Nanking Ry," The Locomotive Magazine, Vol XI (15 August 1905 ), p. 135. Works numbers were 16702-16709.

This was the freight engine among the variety of wheel arrangements that went into service at the same time with the same Belpaire boiler, cylinders, and valve motion. The LM report noted that this particular design benefited from a wide loading gauge, being produced as "a very powerful and well proportioned engine."

See Locobases 2662 for the 4-6-2T.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID2663
Number in Class8
Road NumbersB3-B10
Number Built8
BuilderNorth British
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)25.17 / 7.67
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)103,600 / 46,992
Engine Weight (lbs / kg)134,960 / 61,217
Tender Loaded Weight (lbs / kg)94,640 / 42,928
Total Engine and Tender Weight (lbs / kg)229,600 / 104,145
Tender Water Capacity (gals / ML)4200 / 15.91
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 7.70 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)58 / 29
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)57 / 1448
Boiler Pressure (psi / kPa)184.20 / 12.70
High Pressure Cylinders (dia x stroke) (in / mm)18" x 26" / 457x660
Tractive Effort (lbs / kg)23,139 / 10495.69
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.48
Heating Ability
Tubes (number - dia) (in / mm)188 - 2.25" / 57
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)13.25
Firebox Area (sq ft / m2)162.61 / 15.11
Grate Area (sq ft / m2)28 / 2.60
Evaporative Heating Surface (sq ft / m2)1630 / 151.49
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1630 / 151.49
Evaporative Heating Surface/Cylinder Volume212.86
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5158
Same as above plus superheater percentage5158
Same as above but substitute firebox area for grate area29,953
Power L15583
Power MT356.42

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Wes Barris