Taiwan Railway 0-4-0 Locomotives in Formosa

Class Details by Steve Llanso of Sweat House Media

Class Sail Clouds (Locobase 3859)

[] by Ejii Nozawa says these were the first locomotives to run on the island of Taiwan. They were bought during the the Qing Dynasty and ran until 1924, when the island was a Japanese possession called Formosa.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassSail Clouds
Locobase ID3859
RailroadTaiwan Railway
Number in Class8
Road Numbers
Number Built8
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
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)36,185 / 16,413
Engine Weight (lbs / kg)36,185 / 16,413
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)36,185 / 16,413
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)30 / 15
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)
Boiler Pressure (psi / kPa)100 / 6.90
High Pressure Cylinders (dia x stroke) (in / mm)11.5" x 16" / 292x406
Tractive Effort (lbs / kg)
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2) 5.60 / 0.52
Evaporative Heating Surface (sq ft / m2)375 / 34.85
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)375 / 34.85
Evaporative Heating Surface/Cylinder Volume194.96
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation560
Same as above plus superheater percentage560
Same as above but substitute firebox area for grate area
Power L1
Power MT

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