Data from "Sentetsu Sorii-class locomotives" in Wikipedia at [], last accessed 27 May 2024.
Wikipedia (among other sources) insist that Baldwin manufactured this sextet of Consolidations in 1894 and that they were bought by the Japanese Army to run on its Temporarry Military Railway in 1904.
Unfortunately, Locobase's ransacking of the Baldwin specification books for that year turns up no likely prior owner. No source supplies builder's numbers and Locobase has no entry that combines the power dimensions (cylinder volume, boiler pressure, and driver diameter) with the grate area shown in Wikipedia's specs. Locobase 12689 describes the six Consolidations supplied to the Seoul-Fusan Railway with the same power dimensions, but not nearly the same grate area.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Sorii/Sori |
| Locobase ID | 21183 |
| Railroad | Chosen Government Railway |
| Country | Korea |
| Whyte | 2-8-0 |
| Number in Class | 6 |
| Road Numbers | 101-106/1001-1006/1-6 |
| Gauge | Std |
| Number Built | |
| Builder | |
| Year | 1906 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 15 / 4.57 |
| Engine Wheelbase (ft / m) | 23 / 7.01 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | 50.58 / 15.42 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 146,820 / 66,597 |
| Tender Loaded Weight (lbs / kg) | 98,000 / 44,452 |
| Total Engine and Tender Weight (lbs / kg) | 244,820 / 111,049 |
| Tender Water Capacity (gals / ML) | 4000 / 15.15 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8 / 7.30 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 20" x 26" / 508x660 |
| Tractive Effort (lbs / kg) | 29,467 / 13366.02 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 248 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 13.83 / 4.22 |
| Firebox Area (sq ft / m2) | 160.40 / 14.90 |
| Grate Area (sq ft / m2) | 43.60 / 4.05 |
| Evaporative Heating Surface (sq ft / m2) | 1961 / 182.18 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1961 / 182.18 |
| Evaporative Heating Surface/Cylinder Volume | 207.43 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7848 |
| Same as above plus superheater percentage | 7848 |
| Same as above but substitute firebox area for grate area | 28,872 |
| Power L1 | 4735 |
| Power MT | |