Taiwan Railway 2-6-0 Locomotives in Formosa
Class Details by Steve Llanso of Sweat House Media
Class 500/CT150 (Locobase 3865)
Data from Hiroshi Takagi, both from his website ([
]) and personal communication August 2000. See also "Taiwan Railways CT150 (JNR Class 8620)", posted by wou417, 5 April 2019 at [], last accessed 3 September 2024.
These were duplicates of the widely used 8620 class of Moguls.
Information from Ejii Nozawa's web site ([]) notes that these were built from 1919-1928 by Hitachi, Kawasaki, KSK, Mitsubishi, and Nippon.
According to wou417, the Japanese introduced the 8620s in the 1920s with the Taiwanese authority placing them in class 500. The railway added air brakes in 1928 and tall smoke-deflecting plates (often called "elephant ears") in 1936.
World War II actions damaged 19 of the class, but all were repaired by the Taiwan Railway Administration, which reclassified the 500s as CT150. CT154 and CT155 were so damaged, they were scrapped for parts that were combined to create a new locomotive numbered CT 194. The class remained in service until 1979.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 500/CT150 |
| Locobase ID | 3865 |
| Railroad | Taiwan Railway |
| Country | Formosa |
| Whyte | 2-6-0 |
| Number in Class | 43 |
| Road Numbers | /CT150-CT197 |
| Gauge | 3'6" |
| Number Built | 43 |
| Builder | several |
| Year | 1919 |
| Valve Gear | Walschaert |
| 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) | 29,211 / 13,250 |
| Weight on Drivers (lbs / kg) | 87,634 / 39,750 |
| Engine Weight (lbs / kg) | 103,066 / 46,750 |
| 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) | 49 / 24.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 63 / 1600 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18.5" x 24" / 470x610 |
| Tractive Effort (lbs / kg) | 19,948 / 9048.27 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 91 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | 18 - 5" / 127 |
| Flue/Tube length (ft / m) | 13 / 3.96 |
| Firebox Area (sq ft / m2) | 109 / 10.13 |
| Grate Area (sq ft / m2) | 17.54 / 1.63 |
| Evaporative Heating Surface (sq ft / m2) | 956 / 88.85 |
| Superheating Surface (sq ft / m2) | 296 / 27.51 |
| Combined Heating Surface (sq ft / m2) | 1252 / 116.36 |
| Evaporative Heating Surface/Cylinder Volume | 128.03 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3157 |
| Same as above plus superheater percentage | 3915 |
| Same as above but substitute firebox area for grate area | 24,329 |
| Power L1 | 10,543 |
| Power MT | 795.69 |