Hokkaido Tanko Coal Mining & Railway Co / JNR 2-8-0 Locomotives in Japan


Class Details by Steve Llanso of Sweat House Media

Class 100 (Locobase 20196)

Data from Catalogue No. 10036--Locomotives for Export (New York City: American Locomotive Company (April 1910)., pp. 56-57. See also " Works numbers were 44550-44575 in November 1907.

Locobase 12656 shows the Baldwin trio of Consolidations that arrived in Japan in 1903.The Pittsburgh engines were essentially repeats of the Philadelphia locomotives except for the former's lower direct heating surface area, possibly because of a shallower firebox.

Principal Dimensions by Steve Llanso of Middle Run Media

Class100
Locobase ID20196
RailroadHokkaido Tanko Coal Mining & Railway Co / JNR
CountryJapan
Whyte2-8-0
Number in Class26
Road Numbers100-125
Gauge3'6"
Number Built26
BuilderAlco-Pittsburgh
Year1907
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.25 / 3.73
Engine Wheelbase (ft / m)18.92 / 5.77
Ratio of driving wheelbase to overall engine wheelbase 0.65
Overall Wheelbase (engine & tender) (ft / m)38.46 / 11.72
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)79,800 / 36,197
Engine Weight (lbs / kg)90,600 / 41,096
Tender Loaded Weight (lbs / kg)50,500 / 22,906
Total Engine and Tender Weight (lbs / kg)141,100 / 64,002
Tender Water Capacity (gals / ML)2000 / 7.58
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)33 / 16.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)16" x 20" / 406x508
Tractive Effort (lbs / kg)16,579 / 7520.12
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.81
Heating Ability
Tubes (number - dia) (in / mm)162 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.58 / 3.53
Firebox Area (sq ft / m2)90 / 8.36
Grate Area (sq ft / m2)16.90 / 1.57
Evaporative Heating Surface (sq ft / m2)1065 / 98.94
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1065 / 98.94
Evaporative Heating Surface/Cylinder Volume228.83
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2704
Same as above plus superheater percentage2704
Same as above but substitute firebox area for grate area14,400
Power L13646
Power MT402.91

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