Taiwan Railway 4-6-2 Locomotives in Formosa


Class Details by Steve Llanso of Sweat House Media

Class CT270 (Locobase 3867)

See data from Hiroshi Takagi, both from his website ([]) and personal communication August 2000. These were duplicates of the JNR's C57 Pacifics.

Information from Ejii Nozawa's web site ([]) notes that these 14 came from Hitachi and Kawasaki from 1942 to 1953.

Principal Dimensions by Steve Llanso of Sweat House Media

ClassCT270
Locobase ID3867
RailroadTaiwan Railway
CountryFormosa
Whyte4-6-2
Number in Class14
Road Numbers
Gauge3'6"
Number Built14
Builderseveral
Year1942
Valve GearWalschaert
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)30,358 / 13,770
Weight on Drivers (lbs / kg)91,095 / 41,320
Engine Weight (lbs / kg)148,812 / 67,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)51 / 25.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68.90 / 1750
Boiler Pressure (psi / kPa)228 / 15.70
High Pressure Cylinders (dia x stroke) (in / mm)19.7" x 26" / 500x660
Tractive Effort (lbs / kg)28,382 / 12873.87
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.21
Heating Ability
Tubes (number - dia) (in / mm)84 - 2" / 51
Flues (number - dia) (in / mm)18 - 5.16" / 131
Flue/Tube length (ft / m)18 / 5.49
Firebox Area (sq ft / m2)133.42 / 12.40
Grate Area (sq ft / m2)27.22 / 2.53
Evaporative Heating Surface (sq ft / m2)1371 / 127.42
Superheating Surface (sq ft / m2)445 / 41.36
Combined Heating Surface (sq ft / m2)1816 / 168.78
Evaporative Heating Surface/Cylinder Volume149.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6206
Same as above plus superheater percentage7758
Same as above but substitute firebox area for grate area38,025
Power L117,250
Power MT1252.42

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