Chugoku/ JNR 2-6-0 Locomotives in Japan


Class Details by Steve Llanso of Sweat House Media

Class 5 / 8360 (Locobase 12446)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 23, .p 135. See also Consul-General Gowey, "Length of Railways in Japan as of July 31", letter of 24 August 1898, in Consular Reports - December 1898, Volume LVIII, No. 219, US House of Representatives, 55th Congress, 2nd Session, Doc. No. 565, Part 4 (Washington, DC: GPO, 1898), p. 565. Works numbers were 18297-18300 in October 1900.

This quartet of Moguls were among the largest of that wheel arrangement to operate in Japan. Chugoku Railway was authorized to build 98.13 miles (158 km) of line. As of 31 July 1898, no miles had been completed.

The #5 was soon sold to the Sanyo Railway and renumbered 46, a number it retained when nationalized with the others in 1906. Connelly reports that the 8360-8362 were retired in 1947-1948.

Principal Dimensions by Steve Llanso of Sweat House Media

Class5 / 8360
Locobase ID12446
RailroadChugoku/ JNR
CountryJapan
Whyte2-6-0
Number in Class4
Road Numbers5-8
Gauge3'6"
Number Built4
BuilderBurnham, Williams & Co
Year1900
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12 / 3.66
Engine Wheelbase (ft / m)19.33 / 5.89
Ratio of driving wheelbase to overall engine wheelbase 0.62
Overall Wheelbase (engine & tender) (ft / m)39 / 11.89
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)78,000 / 35,380
Engine Weight (lbs / kg)90,000 / 40,823
Tender Loaded Weight (lbs / kg)50,000 / 22,680
Total Engine and Tender Weight (lbs / kg)140,000 / 63,503
Tender Water Capacity (gals / ML)2700 / 10.23
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)43 / 21.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)16" x 22" / 406x559
Tractive Effort (lbs / kg)15,957 / 7237.98
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.89
Heating Ability
Tubes (number - dia) (in / mm)220 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)10.54 / 3.21
Firebox Area (sq ft / m2)108.50 / 10.08
Grate Area (sq ft / m2)18 / 1.67
Evaporative Heating Surface (sq ft / m2)1156 / 107.43
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1156 / 107.43
Evaporative Heating Surface/Cylinder Volume225.80
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3240
Same as above plus superheater percentage3240
Same as above but substitute firebox area for grate area19,530
Power L15375
Power MT455.76

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