Taiwan Railway 2-8-2 Locomotives in Formosa


Class Details by Steve Llanso of Sweat House Media

Class DT650 (Locobase 3870)

Data from Hiroshi Takagi, both from his website ([link]) and personal communication August 2000.

Information from Ejii Nozawa's web site ([link]) says that Hitachi, Kawasaki, KSK, Mitsubishi, and Nippon supplied these engines to Taiwan from 1940 to 1951, probably from the overall total of 1,115 built for Japan during World War II.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassDT650
Locobase ID3870
RailroadTaiwan Railway
CountryFormosa
Whyte2-8-2
Number in Class37
Road Numbers
Gauge3'6"
Number Built37
Builderseveral
Year1940
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)32,827 / 14,890
Weight on Drivers (lbs / kg)131,307 / 59,560
Engine Weight (lbs / kg)172,776 / 78,370
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)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)55.10 / 1400
Boiler Pressure (psi / kPa)213 / 1470
High Pressure Cylinders (dia x stroke) (in / mm)21.7" x 26" / 551x660
Tractive Effort (lbs / kg)40,229 / 18247.59
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.26
Heating Ability
Tubes (number - dia) (in / mm)90 - 2" / 51
Flues (number - dia) (in / mm)28 - 5.16" / 131
Flue/Tube length (ft / m)18 / 5.49
Firebox Area (sq ft / m2)154.94 / 14.40
Grate Area (sq ft / m2)35.19 / 3.27
Evaporative Heating Surface (sq ft / m2)1690 / 157.06
Superheating Surface (sq ft / m2)693 / 64.41
Combined Heating Surface (sq ft / m2)2383 / 221.47
Evaporative Heating Surface/Cylinder Volume151.85
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7495
Same as above plus superheater percentage9669
Same as above but substitute firebox area for grate area42,573
Power L115,294
Power MT1027.13

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