Hunan Yueh Han 2-6-0 Locomotives in China


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 13648)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University , Volume 34, p. 325. Works numbers were 34558-34559 in April 1910.

The Canton-Hankow, of which the Yueh Han was to be a part, had bought some Alco Moguls in 1908 (see Locobase 12981). This pair was Baldwin's contribution to the same basic design; they appear to differ from the Alcos primarily in the use of an inside link motion.


Class 5 (Locobase 13649)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 49, p. 229. Works numbers were 38216-38218 in August 1912.

This Mogul trio was an enlargement of the earlier pair of Baldwin Moguls shown in Locobase 13648. An increase in cylinder diameter and in boiler pressure more than offset the 2 additional inches of driver diameter to confer a healthy amount of power on the 2-6-0 design; indeed, the design rose to the top 5% of standard- and broad-gauge Moguls in tractive effort generated and occupied the top 15% of all such Moguls in terms of boiler size and adhesion weight.

Principal Dimensions by Steve Llanso of Sweat House Media

Class15
Locobase ID13648 13649
RailroadHunan Yueh HanHunan Yueh Han
CountryChinaChina
Whyte2-6-02-6-0
Number in Class23
Road Numbers1-25-7
GaugeStdStd
Number Built23
BuilderBaldwinBaldwin
Year19101912
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)14 / 4.2712 / 3.66
Engine Wheelbase (ft / m)21.83 / 6.6521 / 6.40
Ratio of driving wheelbase to overall engine wheelbase 0.64 0.57
Overall Wheelbase (engine & tender) (ft / m)51.25 / 15.6251.21 / 15.61
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)119,400 / 54,159128,000 / 58,060
Engine Weight (lbs / kg)141,000 / 63,957147,000 / 66,678
Tender Loaded Weight (lbs / kg)104,000 / 47,174100,000 / 45,359
Total Engine and Tender Weight (lbs / kg)245,000 / 111,131247,000 / 112,037
Tender Water Capacity (gals / ML)5000 / 18.945000 / 18.94
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)9 / 88 / 7
Minimum weight of rail (calculated) (lb/yd / kg/m)66 / 3371 / 35.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)56 / 142258 / 1473
Boiler Pressure (psi / kPa)180 / 12.40200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)19" x 26" / 483x66021" x 26" / 533x660
Tractive Effort (lbs / kg)25,644 / 11631.9433,607 / 15243.90
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.66 3.81
Heating Ability
Tubes (number - dia) (in / mm)290 - 2" / 51309 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.17 / 3.7111.75 / 3.58
Firebox Area (sq ft / m2)152 / 14.12163 / 15.14
Grate Area (sq ft / m2)30 / 2.7930.60 / 2.84
Evaporative Heating Surface (sq ft / m2)1987 / 184.602050 / 190.45
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1987 / 184.602050 / 190.45
Evaporative Heating Surface/Cylinder Volume232.88196.68
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation54006120
Same as above plus superheater percentage54006120
Same as above but substitute firebox area for grate area27,36032,600
Power L154095314
Power MT299.62274.58

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