Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 36, p. 224. See also "The Formosa Sugar Industry as it Was and as It Is," Louisian Planter and Sugar Manufacturer, Volume XLVIII, No 9 (2 March 1912), pp 140-141. Works numbers were 34919-34920 in July 1910.
Among the smallest of sugar locomotives on 8 axles must have been these little tanks, which served a sugar plantation on the island of Formosa, then a colony of Japan.
Japan's 20th-century empire had many dependencies, but one they prized above most others was Formosa (Taiwan). It's a bit unnerving to read the encomium sung to the Japanese developers of the island in light of the history of the empire's approach to governing its colonies: "There could scarcely be a more graphic exhibition of the wonderful progressivness of the Japanese along industrial lines. They have applied the highest scientific attainments to industrial work along other lines than that of cane gorwing and sugar manufacture, but the presentation of these two views will carry to our readers' minds at least one of the striking instances of Japanese progressiveness."
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 12 |
| Locobase ID | 13754 |
| Railroad | Meiji Sugar Company |
| Country | Formosa |
| Whyte | 0-6-2T |
| Number in Class | 2 |
| Road Numbers | 12-13 |
| Gauge | 2'6" |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1910 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5.50 / 1.68 |
| Engine Wheelbase (ft / m) | 12 / 3.66 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.46 |
| Overall Wheelbase (engine & tender) (ft / m) | 12 / 3.66 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 20,000 / 9072 |
| Engine Weight (lbs / kg) | 27,000 / 12,247 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 450 / 1.70 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 11 / 5.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 26 / 660 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 8" x 14" / 203x356 |
| Tractive Effort (lbs / kg) | 4687 / 2125.99 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.27 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 50 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.17 / 2.49 |
| Firebox Area (sq ft / m2) | 21 / 1.95 |
| Grate Area (sq ft / m2) | 4.40 / 0.41 |
| Evaporative Heating Surface (sq ft / m2) | 180 / 16.72 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 180 / 16.72 |
| Evaporative Heating Surface/Cylinder Volume | 221.00 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 704 |
| Same as above plus superheater percentage | 704 |
| Same as above but substitute firebox area for grate area | 3360 |
| Power L1 | 2426 |
| Power MT | 802.26 |